SPN Wheel-BasedVehicle Speed MID 128 84eurotransexpress.com/files/volvocodes.pdf · Group28 Engine Control Module (ECM) Diagnostic Trouble Codes(DTCs) ECM SPN 84, Wheel-BasedVehicle

Group 28 Engine Control Module (ECM) Diagnostic TroubleCodes (DTCs)

ECM SPN 84, Wheel-Based Vehicle Speed - MID 128 PID 84

fault:Type of FMI Description: Fault Condition: Possible

Symptoms:

Possible Cause:

FMI 9 ° Abnormal updaterate

Missing signalfrom VECU

° Engine derate ° SAE J1587 data link vehicle speedmessage does not exist, (VECU error)

° VECU

FMl10 Abnormal rate of

change

Vehicle speeddeemedinaccurate byVECU

° MIL illuminated ° Vehicle speed sensor (\/SS)° VECU

FM|13 Out of calibration No vehicle speedavailable to VECU

° MIL illuminated ° Vehicle speed sensor (VSS)° VECU

FM|19 Received networkdata in error

Vehicle speeddeemedinaccurate byVECU

° MIL illuminated ° Vehicle speed sensor (VSS)° VECU

ECM SPN 91, Accelerator Pedal Position 1 - MID 128 PID 91

Type of FMI Description:fault:

Fault Condition: PossibleSymptoms:

Possible Cause:

FMI 9 Abnormal updaterate

Missing signalfrom VECU

° N/A ° SAE J1587 data link pedal informationnot available

FMI13 Out of calibration Pedal notconnected toVECU

° MIL illuminated ° Accelerator pedal sensor fault

FM|10 Abnormal rate ofchange

Pedal positiondeemedinaccurate byVECU


FMI19 Received networkdata inerror

Pedal positiondeemedinaccurate byVECU


ECM SPN 94, Engine Fuel Delivery Pressure - MD 128 PID 94

Type of FMI Description: Fault Condition: Possiblefault: Symptoms:

Possible Cause:

FMI 3 ’ Voltage abovenormal, or shortedto high source

Low fuel pressuresensor signal linevokage

° NIA ° Damaged contacts in hamess° Faulty fuel pressure sensor° Open circuit.

FM' 5 ° Current belownormal or opencircuit

Low fuel pressuresensor signal line

voltage

° N/A ° Damaged contacts in hamess° Faulty fuel pressure sensor

31

Group 28 Engine Control Module (ECM) Diagnostic TroubleCodes (DTCS)

FMI 7 Mechanical systemnot respondingproperly

° Drop in fuelpressure

° Engine derate ° Clogged fuel filter° Faulty fuel pressure sensor° Leaking fuel line or fitting° Poor fuel pump response

FM|13 Out of Calibrationinvalid value

° Sensor indicates a ° N/A ° Vlhring hamess° Faulty fuel pressure sensor° Clogged fuel filter

FM|15 Data valid but abovenormal operatingrange-Least severelevel

invalid value

° Sensor indicates a ° N/A ° Vlhring harness°

Faulty fuel pressure sensor

FMI17 Data valid but belownormal operatingrange-Least severelevel

invalid value

° Sensor indicates a ° N/A ° \Mring harness° Faulty fuel pressure sensor° Clogged fuel filter

FM|18 Data valid but belownormal operatingrange -Moderatelysevere level

° Drop in fuelpressure

°Engine derate ° Clogged fuel filter

°Faulty fuel pressure sensor

° Leaking fuel line or fitting° Poor fuel pump response

ECM SPN 97, Water in Fuel Indicator- MID 128 PID97


Symptoms:

Possible Cause:

FMI 0 Data valid but abovenormal operationalrange -Most severelevel

° Water in fuel isindicated

° Uneven running° Engine stalling

° Water in fuel

FMI 3Voltage abovenormal, or shortedto high source

° N/A ° Undetected waterin fuel supply

° Uneven running° Engine stalling

° Open circuit

FMI 4Voltage belownormal, or shortedto low source

° N/A ° Undetected waterin fuel supply

° Uneven running

° Short to ground° Open circuit° Faulty sensor

ECM SPN 98, Engine Oil Level- M D 128 PID 98

Type offault:

FMI Description: Fault Condition: PossibleSymptoms:

Possible Cause:

FMI 1 Data valid but above ° Critically belownormal operationalrange

range

° Red Stop oryellow Checklamps illuminated

dependent ofseverity

° Low oil level leakage° Critically low oil level

32

Engine Control Module (ECM) Diagnostic TroubleG' ° “p 28 c ode s (m o s )


Short Circuit -Positive side

Oil level can notbe measured

Engine Oil Level (EOL) sensor failure

Faulty hamess

FMI 5 Current belownormal oropencircuit

Short Circuit +, °Positive side

Open Circuit +,Positive side

Open Circuit-

Negative side

Oil level can notbe measured

Engine Oil Level (EOL) sensor failure

Faulty harness

FMI18 Data valid but belownormal operatingrange -Moderatelysevere level

Moderately belowrange

Critically belowrange

Red Stop oryellow Checklamps illuminateddependent ofseverity

° Low oil level leakage

Moderately low oil level

ECM SPN 100, Engine Oil Pressure - MID 128 PID 100


Fault Condition: Possible Possible Cause:Symptoms:

FMI 1 Data valid but belownormal operationalrange

Critically belowrange

Engine derate

Low pressureRed Stop lampilluminated

Oil leakageBroken oil pump

Clogged oil system

FMI 3Voltage belownormal orshortedlow

Short Circuit +,Measuring line

Open Circuit,Ground line

Oil pressureshows 0 in thecluster, engine isrunningYellow Checklamps illuminated

Engine Oil Pressure (EOP) sensorfailure

Faulty harness

FMI 5 Current belownormal or opencircuit

Open Circuit +, 5V °Supply line

Short Circuit -,Measuring line

Open Circuit,Measuring line

Oil pressureshows 0 in thecluster, engine ismnning

Yellow Checklamps illuminated


Faulty hamess

FM|13 Out of Calibration Sensor indicates ainvalid value

Oil pressureshows 0 in thecluster, engine ismnning


Faulty harness

FM|15 Data valid but abovenormal operatingrange -Least severelevel

Sensor indicates ainvalid value

Oil pressureshows 0 in thecluster, engine isnlnning


Faulty harness

FMl17 Data valid but belownormal operatingrange -Least severelevel


Oil pressureshows 0 in thecluster, engine isrunning


Faulty hamess

33

Engine Control Module (ECM) Diagnostic TroubleG'°”'° 28 codes (p ro s )

ECM SPN 102, Engine Intake Manifold 1 Pressure - MID 128 PID 102


Fault Condition: Possible

Symptoms:

Possible Cause:

FMI 2 Data erratic,intermittent orincorrect

Intake ManifoldPressure Sensoroutput is too highor too low

°Engine derate

° MIL lampilluminated

Faulty harness

Intake Manifold Pressure sensor


A short to batteryin the meteringcircuit

An open in theground circuitof the IntakeManifold PressureSensor

° Engine derate° MIL lamp

illuminated

Faulty hamess

Hamess connectors



A short to groundin the hames s

Anopen in the 5volt supply circuit

An open in themetering circuit


illuminated

Faulty hamess

Hamess connectors


FMl12 Bad intelligentdevice orcomponent

Intake ManifoldPressure sensoroutput is too highSensor indicatesa invalid value


illuminated

Faulty harness


FM|13 Out of Calibration Sensor indicatesa invalid value


illuminated

Faulty hamess

Hamess connectorsIntake Manifold Pressure sensor

FMI14Special instmctions Intake Manifold

Pressure sensoroutput is too low

Sensor indicatesa invalid value

°Engine derate

° MIL lampilluminated

Faulty harness


Inlet air leakage

FMI15 Data valid but abovenormal operatingrange -Least severelevel

Intake ManifoldPressure sensoroutput is too high


illuminated

Faulty hamess

Hamess connectorsIntake Manifold Pressure sensor

FMI17 Data valid but below °normal operatingrange-Least severelevel



illuminated

Faulty harness _Hamess connectorsIntake Manifold Pressure sensor

34

Engine Control Module (ECM) Diagnostic TroubleG'°“" 28 codes (m o s )

ECM SPN 103, Engine Turbocharger1 Speed - MID 128 PID 103

Type offault:

FMI Description: Fault Condition: Possible Possible Cause:

Symptoms:

FMI 0 ° Data valid but abovenormal operationalrange

Turbochargerspeed is at least25% greater thanthe target wheel

speed for themeasured boost

° Engine derate° MIL illuminated

Miss detection

Faulty hamess

Faulty hamess connector

Turbocharger Speed Sensor

FMI 1 ’ Data valid but belownormal operationalrange -Most severelevel

Turbochargerspeed is at least25% less thanthe target wheelspeed for themeasured boost


Miss detection

Faulty hamess

Faulty harness connector



Afault is logged ifthe TurbochargerSpeed Sensor

signal is lost


Faulty harness



FMl15 ° Data valid but abovenormal operatingrange -Least severelevel

Turbochargerspeed is at least25% greater thanthe target wheelspeed for themeasured boost


Miss detection

Faulty harness



ECM SPN 105, Engine Intake Manifold 1 Temperature -MID 128 PID 105

Type offault:

FMI Description: Fault Condition: Possible Possible Cause:Symptoms:

FMI 0 ° Data valid but abovenormal operationalrange -Most severelevel


° Engine derate Poor coolingExtreme running conditions

FMI 2 ° Data erratic,intermittent orincorrect

The IntakeManifoldTemperaturesensor output istoo high or too low


Poor cooling

Extreme running conditions

Engine Intake Manifold sensor

Faulty harness


Ambient Air Temperature sensor

FMI 4 ° Voltage belownormal, orshortedto low source

N/A ° Difficult to start incold climates

° Minor cold enginesmoke

° Engine derate’ MIL illuminated

Engine intake Manifold sensor

Faulty hamess



FMI 5 ° Current belownormal or opencircuitt

Possible short tosensor

Difficult to start incold climates

Engine derate

MIL illuminated

° Engine Intake Manifold sensor° Faulty harness° Faulty hamess connector

FMI13 ° Out of Calibration The sensor outputis showing aconstant value

Engine derate

Minor cold enginesmoke

MIL illuminated

°Engine Intake Manifold sensor

° Faulty harness° Faulty hames s connector

FMI17 ° Data valid but belownormal operatingrange-Least severelevel

The sensor outputis showing aconstant value

Engine derate

Minor cold enginesmoke

MIL illuminated

° Engine Intake Manifold sensor° Faulty harness° Faulty hamess connector

ECM SPN 108, Barometric Pressure - MID 128 P D 108

Type offault:


Possible Cause:


BarometricPressure sensoroutput is too highortoo low

Minor enginederate

MIL illuminated

° Faulty Sensor° Faulty Engine Control Module

FMI 3 ° Voltage abovenormal, orshortedto high source

Short to battery onthe metering side

MIL illuminated ° lntemal fault in the Engine ControlModule

°Faulty Sensor

FMI 4 ° Voltage belownormal, or shortedto low source

A short to groundon the meteringside

MIL illuminated ° lntemal fault in the Engine ControlModule

° Faulty Sensor

ECM SPN 110, Engine Coolant Temperature - MID128 PID 110

Type offault:

FMI Description: Fault Condition: Possible

Symptoms:

Possible Cause:

FMI 0 ° Data valid but abovenomial operationalrange -Most severelevel

Coolanttemperatureindicates criticallimit

Engine derate

Red Stop lampilluminated

° Extreme driving condition° Faulty coolant thennostat° Malfunctioning fan° Blocked radiator


Engine CoolantTemperaturesensor output istoo high or too low

May affectdriveability inextreme casesMIL illuminated

° Faulty Sensor° Faulty harness° Faulty coolant thermostat

FMI 4 ° Voltage belownormal or shortedlow

Engine CoolantTemperaturesensor voltagetoo low

Difficult to start incold climates

Idle mnregulationis deteriorated

MIL illuminated

° Faulty Sensor° Faulty harness

36

Engine Control Module (ECM) Diagnostic TroubleGroup 28 Codes (DTCs)


° N/A ° Difficult to start incold climates

° Idle run regulationis deteriorated

° MIL illuminated

Faulty Sensor

Faulty harness

FM|1O Abnonnal rate ofchange

° Engine CoolantTemperaturesensor outputis showing aconstant value

° May affect vehicledriveability

° MIL illuminated

Faulty Sensor

Faulty hamess

FM|13 Out of Calibration ° Sensor out ofrange

° Sensor indicates ainvalid value

° N/A Faulty Sensor

FM|16 Data valid but abovenormal operatingrange -Moderatelysevere level

° Coolanttemperatureindicatesmoderate upperlimit

° Engine derate° Yellow Check

lamp illuminated

Extreme driving condition

Faulty coolant thermostat

Malfunctioning fan

Blocked radiator

FMI17 Data valid but belownormal operatingrange-Least severelevel

° Sensor out ofrange


° N/A Faulty Sensor

ECM SPN 111, Engine Coolant Leve l - MID 128 PID 111

fault:Type of FMI Description: Fault Condition: Possible Possible Cause:

Symptoms:

FMI1 Data valid but belownormal operationalrange -Most severelevel

° Critically below

range’ Coolant level can

not be detected

° Engine derate° Red Stop lamp

illuminated° Coolant level can

not be detected

Coolant level below range°

Faulty harness

FMI 3Voltage abovenonnal, or shortedto high source

° Short Circuit +,measuring line

° Coolant level cannot be detected


° Yellow Checklamp illuminated

Faulty harness


Faulty level sensor


° Short Circuit -,measuring line




Faulty harness


Faulty level sensor


° Open Circuit° Coolant level can

not be detected



Faulty hamess


Faulty level sensor

Engine Control Module (ECM) Diagnostic TroubleG'°“'° 28 codes (p ro s )

FMI14Special instructions ° Sensor out of

range° Sensor indicatesa

invalid value



Faulty harness


Faulty level sensor


° Sensor out of

range° Sensor indicates a

invalid value



Faulty hamess

Faulty hames s connector

Faulty level sensor

ECM SPN 153, Engine High Resolution Crankcase Pressure - MID 128PID 153/PSID 23

Type offault:

FMI Description: Fault Condition: Possible Possible Cause:Symptoms:


° Out of range, maxvoltage, illegal

° Critically Above

Range

° Red Stop lampilluminated

° Forced idle° Engine shutdown

Piston ring blow-by

FMI 2 Data enatic,intennittent orincorrect

° Crankcasepressureindication to highorto low a value

° MIL illuminated Faulty Crank Case Pressure senor

Faulty hamess

FMI 3Voltage abovenormal orshorted tohigh source

° Short Circuit +,Measuring line

° Open Circuit,Ground line

° MIL illuminated° Yellow Check

lamp illuminated

Faulty Crank Case Pressure senor

Faulty hamess


°Open Circuit +, 5VSupply Line

° Short Circuit -,measuring line

° Open Circuit,measuring line


lamp illuminated

Faulty Crank Case Pressure senor

Faulty hamess

FMI 7 Mechanical systemnot responding orout of adjustment

° Leakage detectedin the crankcaseventilation system

° MIL illuminated Faulty separator, hoses or pipes

FMI13 Out of Calibration ° Sensor out ofrange

° Sensor indicatesainvalid value

° MIL illuminated Faulty Sensor

38


FMI15 ° Data valid but abovenormal operatingrange -Least severelevel

° Sensor out of ° MIL illuminated ° Faulty Sensor


invalid value

FMI17 ° Data valid but belownormal operatingrange -Least severelevel

° Sensor out of ° MIL illuminated ° Faulty Sensor


invalid value

ECM SPN 158, Keyswitch Battery Potential- MID 128 PID 158/PSID 124

Type offault:


Symptoms:

Possible Cause:

FMI 0 ° Data valid but abovenormal operationalrange

° Engine ControlModule batteryvoltage too high

° N/A ° Charging system fault° Extemal charger° Engine control module (ECM)

FMI 1 ° Data valid but belownormal operationalrange

° Engine ControlModule batteryvoltage too low

° Starter will notcrank

° Charging system fault° Battery° Ground connection

FMI 3 ° Voltage abovenormal, or shortedto high source


° N/A ° Charging system fault° Extemal charger° Engine control module (ECM)

FMI 4 ° Voltage belownormal, orshortedto low source



° Charging system fault° Battery° Ground connection

FM|16 ° Data valid but abovenormal operatingrange -Moderatelysevere level


° NIA° Charging system fault° Extemal charger° Engine control module (ECM)

FM|18 ° Data valid but belownormal operatingrange -Moderatelysevere level



° Charging system fault’ Battery° Ground connection

ECM SPN 171, Ambient Air Temperature - MID 128 PID 171

Type offault:


Symptoms:

FMI 2 ’ Data erratic,intermittent orincorrect

° Key ON,Ambient° NIA ° Faulty instrument cluster

Air Temperature» Fauny harness

message mi ssi n g

on SAE J1939 andSAE J1587 datalinks


FMI 9 Abnormal UpdateRate

° Key ON, AmbientAir Temperaturemessage missingon SAE J1587data link

° N/A ° Faulty instrument cluster° Faulty harness


° AmbientTemperaturesensor signal fault

° MIL illuminated ° Faulty instrument cluster

FMI12 Bad intelligentdevice orcomponent

° Loss of SAEJ1939 data linkcommunicationbetween EngineControl Moduleand InstrumentCluster ControlModule

° MIL illuminated °Faulty instrument cluster

° Faulty hamess

FMl13 Out of calibration ° AmbientTemperaturesensor signal fault

° No ambienttemperaturecalculated byVehicle ECU

° No valid ambienttemperaturereceived byEngine ControlModule

° MIL illuminated °Faulty instrument cluster/hamess orcluster hamess connectors

FMI14 ° Special instructions ° AmbientTemperaturesensor signal fault

° MIL illuminated ° Ambient Temperature sensor signalmissing from Vehicle ECU

FM|19 ° Received networkdata in error

° AmbientTemperaturesensor signal fault

° MIL illuminated ° Faulty instrument cluster

ECM SPN 173, Engine Exhaust Gas Temperature (EGT)- MID 128 PID 173


Symptoms:Possible Cause:


‘ Exhaust GasTemperature iscritically high

° Engine derate° Poordriveability°

Regeneration isnot possible

° Faulty harness° Faulty hamess connector° Intake air leak


° Sensor is notrational

° MIL illuminated°

Regeneration isnot possible

° Faulty harness’ Faulty hamess connector° Exhaust leak° Intake air leak° Sensor failure

40

Engine Control Module (ECM) Diagnostic TroubleGm " 28 c ode s ( or es)


° Short to ground onthe metering sideofthe circuit

° MIL illuminated° Regeneration is

not possible

° Sensorfailure° Faulty harness° Faulty harness connector’ Aftertreatment control module (ACM)


° Short to battery onthe metering sideofthe circuit

° Open in themetering side ofthe circuit

° Open in the

ground side ofthe circuit

° MIL illuminated ° Faulty hamess° Sensor failure° Faulty hamess connector

FMI15 Data valid but abovenormal operatingrange-Least severelevel


‘ Sensor indicatesainvalid value

° MIL illuminated ° Sensor failure° Faulty harness

FMI16 Data valid but abovenormal operatingrange -Moderatelysevere level

° Exhaust GasTemperature ismoderately toohigh

° Engine derate° Poor driveability

° Faulty harness° Faulty hamess connector° Intake air leak

ECM SPN 175, Engine Oil Temperature 1- MID 128 PID 175


Symptoms:Possible Caus e:


° Extreme drivingconditions

° Engine oiltemperaturecritically aboverange


° Engine derate

° Extreme driving conditions° Engine cooling fan° Oil thermostat° Coolant system° Clogged oil cooler


° Engine oiltemperaturesensor indicatingtoo high or too lowa value (abnormalvalue)

° MIL illuminated° In some cases

may havean effect ondriveability

° Engine Oil Temperature (EOT) sensorfailure

‘ Faulty hamess


° Short circuit -,measuring line


lamp illuminated

°Engine Oil Temperature (EOT) sensorfailure

° Faulty harness

Group 28Engine Control Module (ECM) Diagnostic Trouble

Codes (DTCs)


° Short circuit +,measuring line

° Open circuit


lamp illuminated

° Engine Oil Temperature (EOT) sensorfailure

° Faulty harness

FMl13 Out of Calibration ° Sensor out ofrange


° MIL illuminated °Engine Oil Temperature (EOT) sensorfailure

FMI 16 Data valid but abovenormal operatingrange -Moderatelysevere level

° Extreme drivingconditions

° Engine oiltemperature ismoderately toohigh

’ Yellow Checklamp illuminated

° Engine derate

° Extreme driving conditions° Engine cooling fan° Oil thermostat° Coolant system° Clogged oil cooler ,

FMI17 Data valid but belownormal operatingrange -Least severelevel


° Sensor indicatesainvalid value

° MIL illuminated ° Engine Oil Temperature (EOT) sensorfailure

ECM SPN 177, Transmission Oil Temperature - MID 128 PID 177



Possible Cause:


° Oil temperaturecritically aboverange


° Transmission oil cooler° Coolant system


° Oil temperatureis moderately toohigh


° Extreme driving conditions° Engine cooling fan° Oil thermostat° Coolant system° Clogged oil cooler

ECM SPN 188, Engine Speed At IdMID 128 PID 188

e, Point 1 (Engine Configurations)-


Symptoms:

Possible Cause:


° Engine idle speedabove desired

speed

° MIL illuminated° High engine oil

consumption° High fuel

consumption

° Engine oil entering cylinders° Leaking or faulty fuel injector

FMI 1 Data valid but belownormal operationalrange -Most severelevel

° Engine idle speedbelow desired

speed

° MIL illuminated° High fuel

consumption

° Low engine torque production° Faulty fuel injector° Low cylinder compression° Engine friction is too high

42

' i i.,


ECM SPN 190, Engine Speed - MID 128 PID 190

Type of FMI Description: Fault Condition: Possible Possible Cause:fault: Symptoms:

FM' 0 ° Data valid but above ° Engine is/was ° Red Stop lamp °normal operational overspeeding illuminated ¢

range -Most severelevel

Engine oil entering cylinders

Faulty crankcase oil filter° Possible engine brake engaged

causing engine overspeeding° Possible transmission downshift

causing engine overspeeding

ECM SPN 228, Speed Sensor Calibration - MID 128 PID 228

Type of FMI Description: Fault Condition:fault:

PossibleSymptoms:

Possible Cause:

SAE J1587 datalink calibrationfactor messagedoes not exist.(VECU error).

FM' 9 ° Abnormal update°

rate

° Your trip data ° Vehicle ECU

SAE J1587 datalink calibrationfactor messagedoes not exist.(VECU error).

FM' 11 ° Failure mode not °identifiable

° Your trip data ° Vehicle ECU

ECM SPN 237, Vehicle Identification Number - MD128 PSID 161


PossibleSymptoms:

Possible Cause:

FMI 2

intermittent or VIN

incorrect

° Data erratic, ° No answer from ° Yellow Checklamp illuminated

° Engine will notstart

° Datalink error° ECM°

Missing VIN inother ECM’s (commonlyvEcu , Lcrvi)

FMI 12 ° Bad intelligent ° Bad answer fromdevice or VIN

component


°Engine will notstart

° ECM° Mismatched VIN sent from other

ECM’s (commonly VECU LCM)

ECM SPN 245, Total Vehicle Distance - MID 128 PID 245

Type of FMI Description: Fault Condition: Possible Possible Cause:

fault: Symptoms:

° SAE J1587 datalink total vehicledistance messagedoes not exist.(\/ECU error).


° NIA ° Vehicle ECU

Engine Control Module (ECM) Diagnostic TroubleG'°“'° 28 codes (DTCS)

ECM SPN 251, Time - MID 128 PID 251

Type offault:


Symptoms:

Possible Cause:


Time datamessage missingon SAE J1587 andJ1939 data links.(Cluster error).Time stampfrom cluster isn’tavailable.

° N/A ° Instrument Cluster


Time datamessage didn’tarrive whenexpected. (Clustererror).Time stampfrom cluster isn’tavailable.

° N/A ° Instrument Cluster


Soak time toolong.Time data fault,data deemedinaccurate.


Engine makeswarm start butcold start needed.

° Instrument Cluster

FM|12 Bad intelligentdevice orcomponent

Time and datedata missing onJ1939 data link.

° MIL illuminated ° Instrument Cluster°

Faulty harness°


FM|13 Out of calibration Time/date fault ° MIL illuminated ° Instrument Cluster° Faulty harness° Faulty hamess connector

FM|19 Received networkdata in error

Soaktime too long.Time data fault,data deemedinaccurate.

° MIL illuminated ° Instrument Cluster

44

l i "

Engine Control Module (ECM) Diagnostic TroubleG' °“p 28 codes ( mos )

ECM SPN 252, Date - MID 128 PID 252


rate from cluster isn’tavailable.

‘ Date datamessage missingon SAE J1587data link. (Clustererror).

F MI Q ° Abnormal update ° Time stamp ° NIA ° Instrument Cluster

ECM SPN 411, Engine Exhaust Gas Recirculation Differential Pressure -MID 128 PID 411


Symptoms:

Possible Cause:

FMI O Data valid but abovenormal operationalrange -Most severelevel

Exhaust GasRecirculation(EGR) differentialpressure sensoroutput reading toohigh. (abnormalvalue)

° MIL illuminated° Engine derate

° Faulty harness°

Faulty harness connector° Faulty sensor° EGR leakage° Clogged EGR cooler


Exhaust GasRecirculation(EGR) differentialpressure sensoroutput reading toolow. (abnormalvalue)

° MIL illuminated ° Faulty harness° Faulty harness connector° Faulty sensor° Clogged venturi


Only used tocontrol EGR valve.

° N/A ° N/A

FMI 3Voltage abovenormal orshorted tohigh source

Short to battery inmetering line

Open in theground circuit


° Faulty EGR differential pressuresensor connector

° Faulty EGR differential pressuresensor harness

° Faulty EGR differential pressuresensor

Engine Control Module (ECM) Diagnostic TroubleGmup 28 co d es (o re s )


Open in the 5 voltsupply line

Short to ground inmetering line

Open in themetering line


Faulty EGR differential pressuresensor connector

Faulty EGR differential pressuresensor hamess

Faulty EGR differential pressuresensor


EGR differentialpressure sensoris read either tohigh or too low.

(Abnormal value).

’ MIL illuminated° Engine derate

Faulty EGR differential pressuresensor connector

Faulty EGR differential pressuresensor hamess

Faulty EGR differential pressuresensorEGR valve

EGR valve leak

Clogged venturi

ECM SPN 412, Engine Exhaust Gas RecirculationPID 412

Temperature - MID 128



FMI 0 Data valid but abovenon'nal operationalrange -Most severelevel

Engine ExhaustGas RecirculationTemperature isabove range

°Engine derate ° Extreme driving conditions

EGR cooler failure

FMI 2 Data erratic,intemiittent orincorrect

EGR temperatesignal, believedto be not valid(plausibility fault)


Engine derate

Faulty sensor


Short to groundon the meteringside of the EGRSensor circuit

° MIL illuminated° Engine power

will be derated

according to theerror torque map

Faulty EGR Temperature Sensorconnector

Faulty EGR Temperature Sensorharness

Faulty EGR Temperature Sensor


Short to batteryin the meteringside of the EGRSensor circuit

Open in themetering side ofthe EGR Sensorcircuit

Open circuit inthe ground line ofthe EGR Sensorcircuit


Faulty EGR Temperature Sensorconnector

Faulty EGR Temperature Sensorhamess


46


FMI13 Out of calibration Engine ExhaustGas RecirculationTemperaturesensor is out ofrange (low)


° MIL illuminated Faulty EGR Temperature Sensorconnector



FM|13 Out of calibration Engine ExhaustGas RecirculationTemperaturesensor is aboverange

° Engine derate Extreme driving conditions

EGR cooler failure


Engine ExhaustGas RecirculationTemperaturesensor is out ofrange (high)





FMl16 Data valid but abovenormal operatingrange -Moderatelysevere level

Engine ExhaustGas RecirculationTemperature isabove range

’ Engine derate Extreme driving conditions

EGR cooler failure


Engine ExhaustGas RecirculationTemperature isout of range (low)





ECM SPN 558, Accelerator Pedal 1 dle Validation Switch -MID 128 SID 230


Symptoms:

Possible Cause:


Idle ValidationSwitch (IVS)signal shortedto voltage


°Faulty hamess or connector

FMI 5 ° Current belownormal or opencircuit

ldle ValidationSwitch (IVS)signal shortedto ground oropen


° Faulty hamess or connector


ECM SPN 626, Intake Air Heater (IAH) Relay - M D 128 PID 45

Type offault:


Possible Cause:


° Short Circuit +,Measuring line

’ Preheat relay not ‘activated

° White smoke forcold start

’ Start problems incold climate


Short Circuit -,Measuring line


° Induction air is hot° Preheat relay is

impossible to tumoff

° Faulty hamess


Open Circuit ° Preheat relay notactivated

° White smoke forcold start

° Start problems incold climate

° Faulty Preheat relay° Faulty hamess

ECM SPN 628, Program Memory - MID 128 SID 240

Type offault:


Possible Cause:

FMI 2 ° Data erratic,intemiittent orincorrect

° Check sum error ° Red Stop lampilluminated

°Engine will notstart

° Engine Control Module (ECM)software

FMI11 Root cause notknown

Bad softwareconfiguration

° MIL illuminated° Engine will not

Start



Error on code-partof flash RAM orerased vendorarea


° Nothing functions


°Engine Control Module (ECM)

FMI14Special instructions VIN not loaded yet ° Flashing MIL

° Engine will notSlarl

° VIN missing

48

Preheat relay solenoid shorted

Engine Control Module (ECM) Diagnostic TroubleG' ° ”p 28 codes ( mos )

ECM SPN 629, Electronic Control Unit (ECU) 1 - MID 128 SID 254

Type of FMI Description: Fault Condition: Possible Possible Caus e:

fault: Symptoms:

FMI 8 ° Abnormal frequency ° Self test failureor pulse width orpenod


° Not possible toprogram EngineControl Module(ECM)

° Engine Control Module (ECM)

device orcomponent

FMI 12 ° Bad intelligent° Self test failure ° Red Stop lamp

illuminated° Engine will not

start


ECM SPN 630, Calibration Memory - MID 128 SID 253

Type offault:


Possible Cause:

FMI 2 ° Data erratic,intennittent orincorrect




FMI12 ° Bad intelligentdevice orcomponent




FMI14 ° Special instructions ° VIN not loaded yet ° Flashing MIL ° Engine Control Module (ECM)° Loss of log data s°nwa'e

and some userconfigurable data


ECM SPN 631, Calibration Module - MID 128 PSID 77/PSID 124


FMI 3

to high source

° Voltage above ° Check sum error ° Engine will not ° Software errornormal, or shorted - start

FMI 8

penod

° Abnormal frequency ° Reset of ECM °Engine will not ° Software error

or pulse width or does not work start

ECM SPN 633, Engine Fuel Actuator 1 Control Command - MID 128 SID 18

Type offault:


Possible Cause:

FM' 3 ° Voltage abovenormal, or shortedto high source

‘ Circuit shorted + ° Yellow Checklamp illuminated

° Valve constantlyshut

° Faulty solenoid° Faulty hamess° Faulty ECM driver

FM' 4 ° Voltage belownormal, or shortedto low source

‘ Circuit shorted- ’ Yellow Checklamp illuminated

° High fuelconsumption dueto fuel leakage

° Faulty solenoid°

Faulty hamess° Faulty ECM driver


° Open circuit ’ Yellow Checklamp illuminated

° Valve constantlyshut

° Faulty solenoid° Faulty harness

ECM SPN 636, Camshaft Position Sensor (CMP) - MID 128 SID 21



FM' 2 ° Data erratic,intermittent orincon'ect

° Phase Error ° MIL illuminated ° Engine timing' ' "°°"e°t ° Increase in fuelconelationbetween CMPand crankshaftposition (CKP)sensor

consumption

50

Engine Control Module (ECM) Diagnostic TroubleG'°"P 28 codes (o re s )


Missing Signalfrom CMP sensor

Open in the CMPsensor circuit

Short to battery inthe CMP sensorcircuit

Short to ground inthe CMP sensorcircuit

MIL illuminated

Possible loss ofengine powerIncreased enginestart time

°Faulty harness

FMI 8 Abnormal frequencyor pulse width orpenod

Noisy Signal fromCMP sensor

Open in the CMPsensor circuit

MIL illuminated

Possible loss ofengine powerIncreased enginestart time

° Faulty CMP sensor° Faulty hamess

Engine Control Module (ECM) Diagnostic TroubleG'°”p 28 co d es ( or es)

ECM SPN 637, Crankshaft Position Sensor (CKP)- MID 128 SID 22

Type offault:


Possible Cause


° Intermittent orweak signal


lamp illuminated’ Increased fuel

consumption° imprecise engine

timing° Increased fuel

consumption° Uneven cylinder

balancing° Power loss° Smoke

° Faulty CKP sensor hamess° Faulty CKP sensor


Missing SignalCKP sensor

Open in the CKPsensor circuit

Short to battery inthe CKP sensorcircuit

Short to ground inthe CKP sensorcircuit


lamp illuminated° Possible loss of

engine power° Increased fuel

consumption

° Faulty CKP sensor hamess°

Faulty CKP sensor

FMI 8 ° Abnormal frequencyor pulse width orpenod

Erratic orintermittent signalfrom CKP sensor

Open in the CKPsensor


lamp illuminated° Possible loss of

engine power° Increased engine

start time° Increased fuel

consumption° Uneven cylinder

balancing° Power loss° Smoke

°Faulty CKP sensor hamess

° Faulty CKP sensor mounting

52


ECM SPN 639, SAE .1939 Data Link 1 - MID 128 SID 231

Type offault:


Symptoms:


SAE J1939 high orlow circuit shorted+

SAE J1939 high orlow circuit shorted

SAE J1939 highor low circuit open

° MIL illuminated ° Faulty hamess or connector

ECM SPN 641, Engine Variable Geometry Turbocharger (\/GT) Actuator1- MID 128 SID 27

Type offault:


Symptoms:


Engine VariableGeometryTurbocharger(\/GT) actuatortemperature out ofrange

° Possible Red Stop ° N/A

lamp illuminated(dependant onseverity)


° Possible enginederate


Engine VariableGeometryTurbocharger(\/GT) actuatorhas not seen avalid command onCAN2 data link

Incorrect data

° MIL illuminated ° Disturbance on CAN2 data link° Yellow Check

lamp illuminated° Low boost° Low power° Nozzle opens° Smoke from

engine


Short to ground ° MIL illuminated ° Faulty VGT actuator connector° Yellow Check ° Faulty VGT actuator harness

lamp illuminated ¢ Low bauew Vonage° Nozzle will openresulting in lowpower and lowboost

° VGT actuatorwill continueto attempt andmaintain targetnozzle position

53

Engine Control Module (ECM) Diagnostic TroubleG'°“'° 28 codes (orc s )

FMI 7 .Mechanical systemnot responding orout of adjustment

Mechanicalproblem withthe EngineVariable GeometryTurbocharger(\/GT) actuator

MIL illuminated

Yellow Checklamp illuminated

Low boost andsmoke

Possible enginederate

Power loss insome cases whenactuator motorhas been disabled

° VGT actuator motor effort istemporarily limited to preventoverheating

° Restrictions detected when runningleam sequence

° VGT actuator is slow to followcommands

° VGT actuator position is not trackingcommand

FMI 9 ¢ Abnormal updaterate

Data from theEngine VariableGeometryTurbocharger(\/GT) actuatorhas been missingfor 2-seconds

MIL illuminated


Engine derated(major)

EGR valve closed

° Data link hamess° No supply to VGT actuator° VGT actuator° VGT actuator connector

FMl13 o Out of calibration Failed self-calibration


° VGT actuator

ECM SPN 642, Engine Variable Geometry Turbocharger (VGT) Actuator 2- MID 128 PPID 89

faultType of FMI Description: Fault Condition: Possible

Symptoms:Possible Cause

FMI 0 o Data valid but abovenormal operationalrange -Most severelevel

VGT SRAtemperature iscritically high


Engine derate

° Coolant system malfunction° Extreme driving conditions° Overheated VGT actuator

FMI16 . Data valid but abovenormal operatingrange -Moderatelysevere level

VGT SRAtemperature ismoderately toohigh

Yellow Check lampilluminated

Engine derate

° Coolant system malfunction° Extreme driving conditions° Overheated VGT actuator

ECM SPN 647, Engine Fan Clutch Output Device Driver- MID 128 SID 33


FMI 3 ‘ Voltage above ° Short to positive ° Yellow Check ° Faulty cooling fan actuatornormal, or shorted in the cooling fan lamp illuminated ¢ Fauny coming fan actuator hamess orto high source control circuit » mcreased fue| connector

consumptionFan mns at fullspeed

54

Group 28 Engine Control Module ECM Diagnostic Trouble( )Codes (DTCs)


Short to groundin the cooling fancontrol circuit

Output voltageis 1/3 the supplyvonage


Fan alwaysdeactivated oralways activated iffault is intermittent

° Faulty cooling fan actuator° Faulty cooling fan actuator hamess or

connector


Open in thecooling fan controlcircuit

Increased fuelconsumptionFan runs at fullspeed

° Faulty cooling fan actuator° Faulty cooling fan actuator harness or

connector

ECM SPN 651, Engine Injector Cylinder 1- MID 128 SID 1



Possible Cause:


Hamess shorted +

low side circuitMIL illuminated


Engine power loss

Engine runninguneven (mistire)

° Faulty harness


Harness shorted+,-oropen highside circuit

Harness shorted -low side circuit

MIL illuminated


Engine power loss

Engine runninguneven (misfire)

° Faulty hamess° Faulty engine fuel injector


Cylinder balancingdata above limit

MIL illuminated ° PTO engaged without ECM knowing°

Faulty engine fuel injector° Low cylinder compression° Damaged or flywheel

FMI 8 Abnormal frequency,pulse width, orpenod

Misfire detected MIL illuminated

Rough engine idle

° Faulty engine fuel injector (possiblyclogged)

FMI13 Out of calibration Cylinder balancingdata above limit

MIL illuminated ° PTO engaged without ECM knowing° Faulty engine fuel injector° Low cylinder compression° Damaged or flywheel

FMI 31 Condition exists Misfire detected MIL illuminated

Rough engine idle


55

Engine Control Module (ECM) Diagnostic TroubleG'°“" 28 codes (bros)

ECM SPN 652, Engine Injector Cylinder 2 - MID 128 SID 2



Possible Cause:


° Hamess shorted +



Engine power loss


’ Faulty harness

FMI 5 ° Current belownormal oropencircuit

° Harness shorted+,-oropen highside circuit

° Harness shorted -low side circuit

MIL illuminated


Engine power loss

Engine runninguneven (misire)

° Faulty harness° Faulty engine fuel injector

FMI 7 ° Mechanical systemnot respondingproperly

° Cylinder balancingdata above limit

MIL illuminated ° PTO engaged without ECM knowing° Faulty engine fuel injector° Low cylinder c ompr e ssion° Damaged orflywheel

FMI 8 o

pulse width, orpenod

Abnormalfrequency,° Mislire detected MIL illuminated

Rough engine idle

° Faulty engine fuel iniector (possiblyclogged)

FM' 13 ° Out of calibration °Cylinder balancingdata above limit

MIL illuminated ° PTO engaged without ECM knowing’ Faulty engine fuel iniector° Low cylinder c ompr e ssion° Damaged or flywheel

FM' 31 ° Condition exists ° Misfire detected MIL illuminated

Rough engine idle




fault: Symptoms:

FMI 3

to high source

° Voltage above ° Harness shorted +

normal, or shorted low side circuitMIL illuminated

Yellow Check

lamp illuminated

Engine power loss


° Faulty harness

56

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CCodes (DT S)


Hamess shorted+,- or open highside circuit

Harness shorted-low side circuit

MIL illuminated


Engine power loss





MIL illuminated ° PTO engaged without ECM knowing‘ Faulty engine fuel injector° Low cylinder compression° Damaged or tlywheel


Mistire detected MIL illuminated

Rough engine idle


FM|13 Out of calibration Cylinder balancingdata above limit

MIL illuminated ’ PTO engaged without ECM knowing° Faulty engine fuel injector° Low cylinder compression° Damaged or flywheel

FMI 31 ° Condition exists Mistire detected MIL illuminated

Rough engine idle

° aulty engine el injector (possiblyF fu

clogged)


Type offault:


Possible Cause:

FMI 3 Voltage abovenormal, or shortedto high source

Harness shorted +low side circuit

MIL illuminated


Engine power loss


° Faulty harness


Harness shorted+,- oropen highside circuit

Harness shorted -low side circuit

MIL illuminated


Engine power loss


’ Faulty harness° Faulty engine fuel injector




Faulty engine fuel injector° Low cylinder compression° Damaged or flywheel


Misire detected MIL illuminated

Rough engine idle

' Faulty engine fuel injector (possiblyclogged)

57

Engine Control Module (ECM) Diagnostic Trouble

G'°“|° 28 codes (pros )

FM' 13 ° outofcalibration ° cyiinderbalancing° M||_i||uminated

data above limit

° PTO engaged without ECM knowing° Faulty engine fuel injector° Low cylinder compression° Damaged orflywheel

FMI31 ° Condition exists ° Misire detected ° MIL illuminated ° Faulty engine fuel injector (possibly° Rough engine idle °I°99edI


fault:Type of FMI Description: Fault Condition: Possible Possible Caus e:

Symptoms:


° Harness shorted +

low side circuit


lamp illuminated

° Faulty harness

° Engine power loss°


FMI 5 Current belownomwal or opencircuit

° Harness shorted+,-oropen highside circuit

° Harness shorted-low side circuit

’ MIL illuminated° Yellow Check

lamp illuminated

°Faulty harness

° Faulty engine fuel injector

° Engine power loss° Engine running

uneven (misfire)


° Cylinder balancingdata above limit

° MIL illuminated ° PTO engaged without ECM knowing° Faulty engine fuel injector' Low cylinder compression° Damaged orflywheel


° Mistire detected ° MIL illuminated ° Faulty engine fuel injector (possibly° Rough engine idle dogged)

FMI13 Out of calibration ° Cylinder balancingdata above limit

° MIL illuminated ° PTO engaged without ECM knowing° Faulty engine fuel injector° Low cylinder compression° Damaged or flywheel

FMI 31 ° Condition exists ° Misfire detected ° MIL illuminated ° Faulty engine fuel injector (possiblyclogged)° Rough engine idle

58


G'°“'° 28 codes (orcs)



Symptoms:

Possible Caus e:


Harness shorted +



Engine power loss


° Faulty harness


Hamess shorted+,-oropen highside circuit

Harness shorted-low side circuit

MIL illuminated


Engine power loss






Faulty engine fuel injector° Low cylinder c om pre s s i on

° Damaged or flywheel


Misire detected MIL illuminated

Rough engine idle


FMI13 Out of calibration Cylinder balancingdata above limit

MIL illuminated ° PTO engaged without ECM knowing° Faulty engine fuel iniector° Low cylinder c ompr e ss ion° Damaged or flywheel

FMI 31 Condition exists Misfire detected MIL illuminated

Rough engine idle


ECM SPN 677, Engine Starter Motor Relay - MID 128 SID 39

Type of FMI Description: Fault Condition: Possible

fault: Symptoms:

Possible Cause:

FMI 3 Q ¢

normal, or shortedto high source

Voltage above Circuit shorted + Yellow Checklamp illuminated

Engine will notstart

° Faulty starter relay° Fault harness

FMI 5 ° Current below ’ Open circuitnormal or opencircuit


Engine will notStart

° Faulty starter relay° Fault harness


G'°”'° 28 codes (ores)

ECM SPN 729, Intake Air Heater (IAH) 1 - MID 128 SID 70

Type offault:


Symptoms:

Possible Cause:


° Circuit shorted +,measuring line


Faulty preheat relay

Faulty intake air heater (IAH) 1


° Circuit shorted -,measuring line

’ Yellow Check

lamp illuminatedFaulty preheat relay

Faulty intake air heater (IAH) 1

|=rv||'5 ° Current belownormal or opencircuit

‘ Open circuit ° Yellow Checklamp illuminated

‘ Faulty intake air heater (IAH) 1

ECM SPN 730, Intake Air Heater (lAH) 2 -MID 128SID 71

Type offault:


Possible Cause:


° Circuit shorted +,measuring line


Faulty preheat relay

Fautly intake air heater (IAH) 2


° Circuit shorted -,measuring line

° Yellow Check

lamp illuminatedFaulty preheat relay

Fautly intake air heater (IAH) 2


° Open circuit ° Yellow Checklamp illuminated

° Fautly intake air heater (IAH) 2

60


G'°“'° 28 codes (orcs)

ECM SPN 975, Estimated Percent Fan Speed - (MID 128 PID 26)


Fault Condition:Symptoms:Possible Possible Cause:


° Missing signalfrom Fan SpeedSensor

’ Short Circuit +,Measuring line

° Short Circuit -,Measuring line

' Open Circuit,Measuring line

° Open Circuit,Ground line

° Higher fuelconsumption

fan, 100%fan

speed ifcoolinneeded

° Vlhll work as on/off

g i s

°c

° | =

failure

sensor harness

ooling Fan Speed (CFS) sensor

aulty Cooling Fan Speed (CFS)

Engine Control Module (ECM) Diagnostic TroubleG'°“'° 28 codes (p ro s )

ECM SPN 1072, Engine Compression Brake Output #1 - MID 128 PPID 122

Type offault


Possible Cause


’ Below range Info lampilluminated

No EngineCompressionBrake

° Low engine oil temperature


° Short Circuit + YellowCheck lampilluminated

EngineCompressionBrake can notbe tumed on

Engine brakefunction derated

Gear shiftperformancederated forsome automatictransmissions

° Faulty Engine Compression Brakeactuator

° Faulty harness


’ Short Circuit- YellowCheck lampilluminated

Compressionbrake can notbe tumed off

Engine stopsrunning

Engine impossibleto restart

° Faulty Engine Compression Brakeactuator

° Faulty harness


° Open Circuit Yellow Check lampilluminated

Compression rakecan not be tumedon

Engine brakefunction derated

Gear shiftperformancederated forsome automatictransmissionboxes

’ Faulty Engine Compression Brakeactuator

° Faulty hamess

62


G'°“P 28 codes ( br os)

ECM SPN 1127, Engine Turbocharger Intake Manifold Pressure (IMP)-MID 128 PSID 98


Symptoms:

Possible Cause:

FMI O Data valid but abovenormal operationalrange

EngineTurbochargerboost pressureis too high

° MIL illuminated° Turbocharger

surge

EGR system failure

Faulty Turbocharger oulet pressuresensor


EngineTurbochargerboost pressureis too low

° MIL illuminated’ Engine derate° Engine slow to

respond

Air leak in turbocharger hose s, pipes,brackets, cooler or componentsEGR system fault

FM|10 Abnormal rate of

change

Poor EngineTurbochargerboost pressureresponse

° MIL illuminated’ Engine power

Iosslre-sponse/drivability

Turbocharger inlet air system leak

Faulty Turbocharger


Variable GeometryTurbochargercontrol mode fault

° MIL illuminated Variable Geometry Turbocharger fault

FMI13 Out of calibration Variable GeometryTurbochargercontrol modeadjustmentexceeded

° Engine powerIosslre-sponse/drivability

Air leak inturbocharger hoses, pipes,brackets, cooler orcomponentsEGR system fault

Faulty Turbocharger oulet pressuresensorExhaust back pressure too high

FMI14Special instructions Poor Engine

Turbochargerboost pressureresponse

° MIL illuminated Air leak in turbocharger hoses, pipes,brackets, cooler orcomponentsVariable Geometry Turbocharger fault

Oil pressure fault


EngineTurbochargerboost pressureis too high

° MIL illuminated° Turbocharger

surge

EGR system failure

Faulty sensor


EngineTurbochargerboost pressureis too low


Engine derate

° Engine slow torespond

Air leak in turbocharger hoses, pipes,brackets, cooler or components

EGR system failure

63


G"°“'° 28 codes ( m os)

ECM SPN 1136, Engine Control Module (ECM) Temperature - MID 128

PPID 55

faultType of FMI Description: Fault Condition: Possible Possible Cause

Symptoms:


° Short to groundonthe meteringcircuit

° N/A ° Engine Control Module (ECM)


° Short to batteryin the meteringcircuit

° Open in themetering circuit

° Open circuit in theground circuit

° N/A ° Engine Control Module (ECM)

ECM SPN 1198, Anti-theft Random Number- MID 128 PID 224

Type offault:


Symptoms:


° Engine ControlModule andInstrument ControlModule securitycodes do notmatch


Can stanengine

° Security system failure

FMl12 ’ Bad intelligentdevice orcomponent

° Security systemnot installed


Can stan engine

° Security system failure

64


Group 28 Codes (DTCs)

ECM SPN 1231, SAE J1939 Data Link 2 - MID 128 PSID 229

Type offault:


Symptoms:


° Circuit shorted +

° Circuit shorted-’ Open circuit

MIL illuminated

Engine power loss

No AftertreatmentDiesel ExhaustFluid (DEF)dosing

No variable

geometry engineturbochargercontrol

° Faulty harness

FMI 9 ° Abnomal updaterate

° Missing signalfrom TransmissionControl Module

(TCM)

MIL illuminated


NoAflertreatmentDiesel ExhaustFluid (DEF)dosing

° SAE J1939 data link° Faulty hamess or connectors° DEF pump° Aftertreatment Diesel Exhaust Fluid

(DEF) control module

ECM SPN 1265, Engine Piston CooSID 85

ing Oil Pressure Actuator -MID 128

Type offault:


Symptoms:


° Circuit shorted + Yellow Checklamp illuminated

Possible smokeduring start up

° Faulty harness° Faulty actuator


° Circuit shorted - Red Stop lampilluminated

Engine damagecan occur without

piston cooling



° Open circuit Yellow Checklamp illuminated

Possible smokeduring start up


Engine Control Module (ECM) Diagnostic TroubleGroup 28 Codes (DTCS)

ECM SPN 1322, Engine Misfire for Multiple Cylinders- MID 128 PSID 27


Symptoms:

FMI 8

or pulse width orpenod

° Abnormal frequency°

Cylinder mistiresdetected inmultiple cylinders

° MIL illuminated ° Engine fuel injectors° Rough idle

FMI 31 ° Condition exists ° Cylinder mistiresdetected inmultiple cylinders

° Rough idle ° Engine fuel injectors° MIL illuminated

ECM SPN 1659, Engine Coolant System Thermostat - MID 128 PSID 109

Type of FMI Description: Fault Condition: Possible Possible Caus e:

fault: Symptoms:

not responding or closed drivabilityout of adjustment

FMI? ° Mechanical system° Thermostat stuck ° Possible poor

° Coolant thermostat

device or leaking or stuck o Longer enginecomponent open warm up time

° Poor heat in cab

FMI12 ° Bad intelligent° Thermostat is ° MIL illuminated ° Coolant thermostat

ECM SPN 1675, Engine Starter Mode - MID 128 SID 39


Symptoms:


° Starteroverheating


Starter is deactivated due tooverheating


° Transmission notin neutral



FMI10 Abnormal rate ofchange

° Starter gear isstuck, engagedwith engine



FMI14 Special instructions ° PTO is engagedor switch on

’ Engine will notstart


66

Engine Control Module (ECM) Diagnostic TroubleG'°“P 28 codes ( m os)

ECM SPN 1677, Aftertreatment DPF Auxiliary Heater Mode - MID 128PSID 25

Type offault:


Symptoms:

FMI 0 ‘ Data valid but above °normal operationalrange - mostsevere level

Truck has idledtoo long withoutcompleting aperiodic heatmode


Engine derate

High temperaturespikes in DPFwhen drivingis resumed orduring stationaryregeneration

Extremely cold ambient temperatures

PTO operated with limited exhausttemperatures

Engine turbocharger

Engine turbocharger compressorbypass valve

FMI 7 ° Mechanical system °not responding orout of adjustment



White exhaustsmoke

High temperaturespikes in DPFwhen dn vingis resumed orduring stationaryregeneration

Extremely cold ambient temperaturesPTO operated with limited exhausttemperatures

Engine turbocharger


FM|16 ° Data valid but above °normal operatingrange -Moderatelysevere level



White exhaustsmoke

High temperaturespikes in DPFwhen drivingis resumed orduring stationaryregeneration

Extremely cold ambient temperaturesPTO operated with limited exhausttemperatures

Engine turbocharger


ECM SPN 1761, Aftertreatment Diesel Exhaust Fluid (DEF) Tank Level-PPID 278

fault:Type of FMI De sc r iption: Fault Condition: Possible Possible Cau s e:

Symptoms:

FMI 3 ° Voltage above °normal, or shortedto high source

Short circuit highside

° NIA DEF tank pickup assembly/sensorfailure

FMI 5 ° Current below °normal oropen ocircuit

Short circuit +

Open circuit


DEF tank pickup assembly/sensorfailure

FMI11 ° Root cause not °known

DEF tank level low °(driver waming)

Low DEF fluidlamp illuminated

N/A

67


Codes (DTCs)

FMI 14 ° Special Instructions ° DEF tank almost

empty (driverwarning)

° Low DEF fluidlamp illuminated

° No AftertreatmentDiesel ExhaustFluid (DEF)dosing

° N/A

FM' 18 ° Data valid but belownormal operatingrange -Moderatelysevere level

° DEF tank almostempty (driverwarning)

° Low DEF fluidlamp illuminated

° NoAttertreatmentDiesel ExhaustFluid (DEF)dosing

° N/A

ECM SPN 2003, Transmission Control Module (TCM) Status - MID 128PSID 205


Fault Condition: Possible IPossible Cause:

Symptoms:

FM' 9 ° Abnormal updaterate

° Missing signal° N/A ° Datalink error

from TransmissionControl Module(TCM)

ECM SPN 2017, Cruise Control Status -MID 128 PID 85



Possible Cause:


° Missing (CruiseControl) signalfrom VECU

° Cruise Controldoes not work

‘ Noclutch information to Engine ControlModule (ECM) from SAE J1939 datalink

ECM SPN 2029, Invalid or Missing Data from Vehicle ECU - MID 128 PSID201

Type of FMI Description: Fault Condition: Possible

fault: Symptoms:

Possible Cause:

FM' 8 ° Abnormal frequencyor pulse width orpenod

° No contact withVECU

° Yellow Check

lamp illuminated° PTO, engine

compressionbrake and cruisecontrol do notwork

° Faulty harness

FM' 9 ° Abnormal updaterate

° Missing signal ’from cluster

MIL illuminated ° Faulty harness

68

Engine Control Module (ECM) Diagnostic TroubleG' °“p 28 codes ( or cs)

ECM SPN 2629, Engine Turbocharger Compressor Outlet Temperature -MID 128 PID 404


Symptoms:

Possible Cause:


° Estimated engineturbochargerdischargetemperature error.

° Engine derate ° High ambient temperature° Low barometric pressure° Leak inengine turbocharger inlet tube


' Engineturbochargeroutlet temperaturesignal believed tobe not valid (high)(plausibility fault)

° Engine derate° MlLilIuminated

° Engine turbocharger outlet temperaturesensor


° Short circuit -,measuring line


lamp illuminated

° Faulty sensor° Faulty harness


° Short circuit +,measuring line

° Open circuit


lamp illuminated

° Faulty sensor° Faulty harness

FM|13 Out of calibration ° Sensor out ofrange

° MIL illuminated ° Faulty sensor


° Sensor out of

range


FM|17 Data valid but belownormal operatingrange-Least severelevel



ECM SPN 2659, Eng- MID 128 PPID 35ine Exhaust Gas Recirculation (EGR) Mass Flow Rate

Type offault:

FMI Description: Fault Condition: PossibleSy mp t o ms:

Possible Cause:

FMI 0(J1587only)

Data valid but above ° EGR flow is too ° MIL illuminated

normal operational high » Exhaust Smokerange

‘ Faulty EGR system

FMI 1 Data valid but below ° EGR flow is too ° MIL illuminatednormal operationalrange

low

° Faulty EGR system° Clogged EGR cooler

69


range -Moderatelysevere level

FN"16 ° Datavarid butabove ° EGR nowisroo ° Mrurruminatednonnal operating high » Exhaust Smoke

°Faulty EGR system

° Faulty harness or connector

range -Moderatelysevere level

F"’"18 ° Dara valid butberow ° EGR fiowistoo ° M||_irruminatednormal operating low

° Faulty EGR system° Clogged EGR cooler° Faulty hamess or connector

ECM SPN 2791, Engine Exhaust Gas Recirculation (EGR) Valve Control-MID 128 SID 146



Possible Cause:


° Stuck EGR valve° EGR valve circuit

shorted +

° EGR valve circuitshorted to -


° Faulty harness or connector° Faulty EGR valve


‘ Open EGR valvecircuit


Engine derate

’ Faulty hamess orconnector° Faulty EGR valve

ECM SPN 2836, Battery Potential/Switched Voltage - MID 128 PSID 49



Possible Cause:

FMI 3 ° Voltage abovenomwal, or shortedto high source

° Battery voltagetoo high

° N/A ° Faulty cab or chassis harness’ Charging system fault° External charger

FMI 4 °Voltage belownormal, or shortedto low source

° Battery voltagetoo low


° Faulty cab or chassis harness° Charging system fault° Battery° Fuse

70

Engine Control Module (ECM) Diagnostic TroubleG'°“"28 I codes (DTCS)

ECM SPN 3031, Aftertreatment Diesel Exhaust F uid (DEF) Tank

Temperature - MID 128 PPID 274


Symptoms:

Possible Cause:

FMI 0 Data valid but abovenon‘nal operationalrange -Most severelevel

AftertreatmentDiesel ExhaustFluid (DEF) tanktemperature toohigh

Date datamessage missingon SAE J1587data link. (Clustererror).

° MIL illuminated° No Aftertreatment

Diesel ExhaustFluid (DEF)dosing

‘ DEF tank pickup assemblylsensorfailure

FMI 4 Voltage belownormal, or shortedto low source

Short Circuit- ° MIL illuminated ° DEF tank pickup assembly/sensorfailure

° DEF tank pickup asssembly/sensorwiring or connectors


Short Circuit +

Open Circuit

° MIL illuminated ‘ DEF tank pickup assembly/sensorfailure

° DEF tank pickup assembly/sensorwiring orconnectors

FMI 8 Abnormal frequencyorpulse width orpenod

Sensor ripple isnot too high

‘ N / A ' ° DEF tank pickup assembly/sensorfailure

° DEF tank pickup ‘assembly/sensorwiring orconnectors

ECM SPN 3064, Aftertreatment DPF System Monitor - MID 128 PPID 326


Symptoms:

Possible Cause:


Moderately highsoot load


° Medium to highengine derate

° Diesel Particulate Filter (DPF) clogged° After Treatment Fuel Injector clogged° Regeneration disabled by driver or

other component

FMI10 Abnormal rate of

change

Soot loading highdue to heavyload or use (noproblem)


° Engine derate

° No error, condition occurs during heavyload or use with high soot loading


Critically high sootload


° High enginederate

° Engine derate

° Diesel Particulate Filter (DPF) clogged° Aftertreatment hydrocarbon doser

(injector)° Regeneration disabled by driver or

other component

71

Engine Control Module (ECM) Diagnostic TroubleG' °“p 28 codes ( br os)

ECM SPN 3216, Aftertreatment Intake NOX - MID 128 PPID 348

Type offault:


Possible Caus e:


° Inlet NOx sensorerror (plausibility)

° MIL illuminated ° Engine out NOx high’ Faulty NOx sensor

FMI 3 ° Voltage above


° Short Circuit, NOX

signal

° MIL illuminated ° Faulty wiring between NOx sensor andNOx sensor ECU

° Faulty NOx sensor


° Open Circuit, NOx

signal




° Missing signalfrom NOx sensor


lamp illuminated

° Loss of communication from NOxsensor ECU and Engine ControlModule (ECM)

FMI11 ° Root cause notknown

° NOx sensormeasures nearzero for long timewith high load

° MIL illuminated ° Faulty NOx sensor

FM|12 ° Bad intelligentdevice orcomponent

° NOx-sensor signalcorrupt (incorrectvalue)

° MIL illuminated °Faulty NOx sensor

FM|13 ° Out of calibration ° NOx-sensoractivation(incorrect value)

° MIL illuminated ° Faulty NOx sensor

FMI 14 ° Special instructions ° Missing signalfrom sensor dueto battery voltage

° MIL illuminated ° Voltage to NOx sensor is too high ortoo low

° Faulty hamess to sensor

ECM SPN 3226, Aftertreatment Out et NOx - MID

MID 233 Fault code sent by MID 128 Engine control unit

128 PPID 270/ PSID 90

Type offault

FMI Description: Fault Condition: PossibleS ym ptom s:

Possible Cause


° Inlet NOx sensorerror (plausibility)

° Mismatch betweensensors

° MIL illuminated ° Engine out NOx high -° Faulty NOx sensor° Attertreatment Diesel Exhaust Fluid

(DEF) quality

FMI 3 ° Voltage abovenormal or shortedto high source

’ Short Circuit, NOxsignal



FMI 5 ’ Current belownormal or opencircuit

’ Open Circuit, NOxsignal



72


MID 233 Fault code sent by MID 128 Engine control unit (cont’d.)


° Missing signalfrom NOx sensor

MIL illuminated° Yellow Check lamp

illuminated

‘ Loss of communication from NOxsensor ECU and Engine Control

Module (ECM)


° NOx sensormeasures nearzero for long timewith high load

MIL illuminated ° Faulty NOx sensor


° NOx-sensor signalcorrupt (incorrectvalue)

MIL illuminated ’ Faulty NOx sensor

FM|13 Out of calibration ° NOx-sensoractivation(incorrect value)

MIL illuminated ° Faulty NOx sensor

FMI14Special instructions ° Missing signal

from sensor due tobattery voltage

MIL illuminated ° Voltage to NOx sensor is too high or

° Faulty harness to sensortoo low

FMI 31 Condition exists ° Inlet NOx sensorerror

° Mismatch betweensensors

MIL illuminated ' Engine out NOx high° Faulty NOx sensor° Aftertreatment Diesel Exhaust Fluid

(DEF) quality

ECM SPN 3245, Aftertreatment DPF Outlet Temperature - MID 128 PPID436


Symptoms:

Possible Caus e:


° Temperaturecritically too high

Low engine power° Restricted Catalyst° Intake air leak° Faulty sensor


° Sensor isnot rational(plausibility)

MIL illuminated

Regeneration notpossible

° Faulty sensor° Exhaust system leak° Faulty hames s connectors or

connections


° Short to ground onthe metering sideofthe circuit

MIL illuminated


° Faulty harness° Faulty sensor° Aftertreatment control module (ACM)

73


FMI 5 o Current belownormal or opencircuit

Short to battery onthe metering sideof the circuit

Open in themetering side ofthe circuit

Open in theground side ofthe circuit

° MIL illuminated °Faulty harness

° Faulty sensor° Aftertreatment control module (ACM)

FMI 15 . Data valid but abovenormal operatingrange -Least severelevel

Temperaturesensor is out of

range (high)Sensor indicates ainvalid value

’ MIL illuminated ° Faulty harness° Faulty sensor

ECM SPN 3249, Aftertreatment DPF Intake Temperature -MID 128 PPID387


Symptoms:

FMI 2 o Data erratic,intermittent orincorrect

Sensor isnot rational(plausibility)

° MIL illuminated° Aborted

regeneration

° Faulty harness° Faulty harness connectors or

connections° Exhaust system leak° Faulty sensor

FMI 4 oVoltage belownormal, or shortedto low source

Short to ground onthe metering sideof the circuit

° MIL illuminated° Aborted

regeneration

° Faulty hamess° Faulty sensor° Aftertreatment control module (ACM)

FMI 5 o Current belownormal or opencircuit

Short to battery onthe metering sideof the circuit

Open in themetering side ofthe circuit

Open in theground side ofthe circuit

° MIL illuminated° Regeneration not

possible

° Faulty harness' Faulty sensor° Aftertreatment control module (ACM)

FMI15 ¢ Data valid but abovenormal operatingrange-Least severelevel

Temperaturesensor is out ofrange (high)


° MIL illuminated ° Faulty harness° Faulty sensor

74

Engine Control Module (ECM) Diagnostic TroubleG"°“l’ 28 codes ( m os)

ECM SPN 3251, Aftertreatment DPF Differential Pressure - MID 128 PID 81


Symptoms:

Possible Cause:

FMI 0 Data valid but abovenormal operationalrange

° Critically highpressure

° Engine derate° Red Stop lamp

illuminated

Aftertreatment diesel particulate filter

(DPF) differential pressure sensorfailure

FMI 2 Data erratic,intem1ittent orincorrect

° Sensor is notrational

’ MIL illuminated Aftertreatment diesel particulate Hlter



° Short to battery onthe metering side

° Open in theground line

° MIL illuminated Aftertreatment diesel particulate filter


Faulty aftertreatment diesel particulatefilter (DPF) differential pressure sensorconnector

Faulty harness


’ Open in 5 volt

supply line° Short to ground in

metering line° Open in metering

line

° MIL illuminated Aftertreatment diesel particulate filter


Faulty harness

FMl16 Data valid but abovenormal operatingrange -Moderatelysevere level

° Moderately highpressure

° Engine derate Aftertreatment diesel particulate filter


ECM SPN 3363,_Afte- MID 128 PSID 75rtreatment Diesel Exhaust Fluid (DEF) Tank Heater


Symptoms:

Possible Cause:


° Commandedvalve position isnot plausible

° N/A Faulty hamess orconnectorsAftertreatment DEF tank temperaturesensor

Aftertreatment DEF tank heating valve

FMI 3 Voltage above


° Circuit shorted + ° NIA Aftertreatment DEF pump assembly

FMI 4 Voltage belownormal, or shortedto low source

° Circuit shorted -° Open circuit

° N/A Aftertreatment DEF pump assembly


° Open circuit ° N/A Aftertreatment DEF pump assembly

75


ECM SPN 3471, AflePPID 328

rtreatment Fue Pressure Control Actuator - MID 128

Type offault:


Symptoms:


° Circuit shorted tobattery

MIL illuminated


Abortedregeneration

Faulty harness

Actuator failure

FMI 4 ° Voltage below

normal, or shortedto low source

° Circuit shorted toground

MIL illuminated

Yellow Check

lamp illuminated

Abortedregeneration

Faulty harness

Actuator failure


° Open circuit MIL illuminated


Abortedregeneration

Faulty harness

Actuator failure

FMI 7 ° Mechanical systemnot responding orout of adjustment

° Altertreatmenthydrocarbondoser fuelpressure too low

MIL illuminated



Fuel shut off valve stuck open

Faulty fuel pressure sensor

FMI14 ° Special instructions ° Aftertreatmenthydrocarbondoser fuelpressure too high

MIL illuminated



Fuel shut off valve leakage

ECM SPN 3480, Afle437/PSID 108

rtreatment DPF Fuel Pressure - MID 128 PPID

Type offault:


Sy mp t o ms :


° DPF fuelpressure sensoris not rational(plausibility)

° Aftertreatment

hydrocarbon doserfuel pressure toolow

MIL illuminated



Faulty aftertreatment fuel shut off valve

Faulty DPF fuel pressure sensorAir in fuel

Fuel filter

Aftertreatment fuel pump

76


Codes (DTCs)

FMI 3Voltage abovenormal orshorted tohigh source »

Short to battery onthe metering side

Open in theground line

MIL illuminated



° Faulty harness‘ Faulty DPF fuel pressure sensor

FMI 5 Current below °normal or opencircuit ¢

Open circuit in the5 volt supplyShort circuit toground in themetering line

Open circuit in themetering line

MIL illuminated



°Faulty harness

° Faulty DPF fuel pressure sensor

FMI 7 Mechanical system°

not responding orout ofadjustment

Mechanicalproblem

MIL illuminated

Engine derate

Possible engineshutdown


° Faulty aftertreatment hydrocarbondoser system

° Aftertreatment hydrocarbon doser° Faulty aftertreatment fuel shut off valve° Aflertreatment fuel pump

FM|10 Abnormal rate of 0

changeAftertreatmenthydrocarbondoserfuel pressuresensor stuck

Aftertreatmenthydrocarbon doserfuel pressure toohigh

MIL illuminated

Yellow Check

lamp illuminated


’ Faulty fuel pressure sensor° Faulty shut off valve° Aftertreatment hydrocarbon doser

(injector)

FMl15 Data valid but above °normal operatingrange -Least severelevel ¢

Fuel pressuresensor is out ofrangeSensor indicates ainvalid value

MIL illuminated ° Faulty fuel pressure sensor

ECM SPN 3483, Aftertreatment Regeneration Status - MID 128 PSID 47


Symptoms:

Possible Cause:

FMI 0 Data valid but above °normal operationalrange -Most severelevel

Unable toachieve neededaftertreatmenttemperature

MIL illuminated

Possibleincompleteregeneration

° Aftertreatment hydrocarbon doser

clogged° Aftertreatment hydrocarbon doser fuel

pressure too low

FMI 1 Data valid but below °normal operationalrange

Aftertreatmenttemperature toohigh

MIL illuminated




pressure too high

FM|10 Abnormal rate of

changeRegenerationperiod too long

MIL illuminated

Regenerationfrequency toohigh


° Air leakage

77

Engine Control Module (ECM) Diagnostic TroubleG' °“p 28 codes (m o s )

FMI12 Bad intelligentdevice orcomponent

° Regenerationefficiency too low

° NIA ° Aftertreatment hydrocarbon doser

clogged° Diesel Particulate Filter (DPF) catalyst

damaged° Diesel Particulate Filter (DPF) catalyst

clogged

FMI13 Out of Calibration ° Regenerationperiod too long

MIL illuminated


° Aftertreatment hydrocarbon doser° Air leakage° Fuel line clogged

FM|15 Data valid but abovenormal operatingrange-Least severelevel

° Unable toachieve neededtemperature

MIL illuminated

Possible

incompleteregeneration

° Aftertreatment hydrocarbon doserclogged

° Aftertreatment hydrocarbon doser fuel

pressure too low

FMI 17 Data valid but belownormal operatingrange-Least severelevel

° Aftertreatmenttemperature toohigh

MIL illuminated




pressure too high

FMI 31 Condition exists ° Regenerationperiod too long

MIL illuminated


° Aftertreatment hydrocarbon doser° Air leakage° Fuel line clogged

ECM SPN 3509, Sensor Supply Voltage 1-MID 128 SID 232




° Sensor supplyvoltage out ofrange (high)

MIL illuminated

Incorrect sensorvalues



° Sensor supplyvoltage out of

range (low)

MIL illuminated



ECM SPN 3510, Sensor Supply Voltage 2 - MID 128 SID 211

Type of FMI Description: Fault Condition: Possiblefault: Symptoms:

Possible Cause:

FMI 3 ° Voltage above ° Circuit shorted +


MIL illuminated



Voltage belownormal, or shortedto low source

FM' 4 ° ° circuiisnoried- MIL illuminated


° Faulty harness orconnector

78


ECM SPN 3511, Sensor Supply Voltage 3 - MID 128 PSID 113


fault: Symptoms:


FMI 3 ° Voltage above ° Circuit shorted + ’ MIL illuminated °Faulty hamess

normal, or shonedto low source

FMI4 ° Voltage below ° Circuit shorted- ° MIL illuminated °Faulty harness

ECM SPN 3512, Sensor Supply Voltage 4 - MID 128 PSID 126

fault:Type of FMI Description: Fault Condition: Possible 4Possible Caus e:

Symptoms:

FMI 3


° Voltage above ° Sensor supplycircuit shorted +

° MIL illuminated ° Faulty hames s° Incorrect sensor

values


° Sensor supplycircuit shorted -

° MIL illuminated ° Faulty harness° Incorrect sensor

values

ECM SPN 3522, Aftertreatment Tota Fuel Used -MID 128 PSID 91


Symptoms:

Possible Cause:

FMI 0 Data valid but abovenormal operationalrange

° AftertreatmentDiesel ExhaustFluid (DEF) levelchange too much

° N/A ° DEF system leak° Wrong DEF tank’ Aftertreatment DEF Dosing Module

failure or wrong module


° AftertreatmentDiesel ExhaustFluid (DEF) levelchange too little

° N/A ° DEF tank level sensor stuck° DEF system clog° Wrong DEF tank° Aftertreatment DEF Dosing Module


FMI16 Data valid but abovenormal operatingrange -Moderatelysevere level

’ AftertreatmentDiesel ExhaustFluid (DEF) level

change too much

° N/A ° DEF system leak° Wrong DEF tank° Aftertreatment DEF Dosing Module

failure orwrong module

FMl18 Data valid but belownormal operatingrange -Moderatelysevere level

° AftertreatmentDiesel ExhaustFluid (DEF) level

change too little

° NIA ° DEF tank level sensor stuck° DEF system clog° Wrong DEF tank° Aftertreatment DEF Dosing Module


Engine Control Module (ECM) Diagnostic TroubleG'°"i’ 28 codes (mos)

ECM SPN 3556, Aftertreatment Hydrocarbon Doser- MID 128 PPID 329

Type offault:


Possible Cause:

FMI 3 ’ Voltage abovenormal, or shortedto high source

° Circuit shorted tobattery


lamp illuminated° Regeneration not

possible

°Faulty harness

° Aftertreatment hydrocarbon doserfailure


° Circuit shorted toground



possible

°Faulty harness


FMI 5 ° Current belownomial or opencircuit

° Open circuit ° MIL illuminated° Yellow Check

lamp illuminated’ Regeneration not

possible

° Faulty harness° Aftertreatment hydrocarbon doser

failure

FM|13 ° Out of calibration ° Aftertreatmenthydrocarbondoser clogged

° MIL illuminated ° Aftertreatment hydrocarbon doserfailure

° Fuel shut off valve° Fuel supply failure

FMI 14 ° Special instructions ° Aftertreatmenthydrocarbondoser leaking



possible


ECM SPN 3597, Aftertreatment Diesel Particulate Filter (DPF) Regenerationtoo Frequent- MID 128 PSID 119


fault: Symptoms:


FMI 3 ° Voltage above ° Circuit shorted + ° MIL illuminated ' Faulty harness° Faulty connector° Aftertreatment DEF line heater 1 or 3

failure° Aftertreatment DEF pump assembly

failure° Aftertreatment DEF tank heating valve

failure° Aftertreatment Control Module (ACM)

80

Engine Control Module (ECM) Diagnostic TroubleG'°“" 28 codes (bros)


° Circuit shorted- ° MIL illuminated ° Faulty harness° Faulty connector° Aftertreatment DEF line heatert o r3





° Open circuit ° MIL illuminated ’ Faulty harness° Faulty connector° Aftertreatment DEF line heater 1 or 3




ECM SPN 3675, Engine Turbocharger Compresso- MID 128 PPID 330r Bypass Valve Position

Type offault:


Possible Cause:


° Circuit shorted +’ Onloff valve can't

be activated

MIL illuminated

Yellow electronicmalfunction lampilluminated


High enginebraking without

request

Driveabilityaffected

° Faulty bypass valve solenoid° Faulty hamess° Faulty harness connector

FMI 4 ° Voltage below

normal, orshortedto low source

° Short circuit-° Valve constantly

activated

MIL illuminated


Major enginederate

Exhaust manifoldoverheating

Engine shut down

° Faulty bypass valve solenoid° Faulty harness° Faulty harness connector

81

Engine Control Module (ECM) Diagnostic TroubleG'°“‘° 28 codes ( mos )

FMI 5 ¢ Current belownormal or opencircuit

° Open circuit° On/off valve can’t

be activated



possible° High engine

braking withoutrequest

° Driveabilityaffected

° Faulty bypass valve solenoid° Faulty harness° Faulty h ames s connector


’ MechanicallyStuck

° On/off valve can’tbe activated



possible’ High engine

braking without

request° Driveability

affected° Valve constantly

activated° Major engine

derate° Exhaust manifold

overheating° Engine shut down

° Leaking pipes° Faulty bypass valve solenoid

ECM SPN 3720, Aftertreatment DPF Ash Load Percent- MID 128 PPID 337


Symptoms:

normal operationalrange -Most severelevel

FMIO ° Data valid but above ° Ash level too high° Yellow Check ° Need service, ash level is too high

lamp illuminated

ECM SPN 3936, Aftertreatment DPF System - MID 128 PSID 28


PossibleSymptoms:

Possible Caus e:


AflertreatmentDPF differentialpressure sensorvalue too high

° MIL illuminated ° Aftertreatment DPF differential

pressure sensor° Aftertreatment particulate ilter


AftertreatmentDPF differential

pressure sensorvalue too low

° MIL illuminated ° Aftertreatment DPF differential

pressure sensor° Aftertreatment particulate filter

82

Engine Control Module (ECM) Diagnostic TroubleG'°“" 28 co d es (b ros )

ECM SPN 4094, NOx Limits Exceeded Due to Insufficient Diesel ExhaustFluid (DEF) Quality - MID 128 PSID 90



Possible Cause:

FMI 1 ° Data valid but belownormal operationalrange -Most severelevel

° AftertreatmentDiesel ExhaustFluid (DEF)dosingtoo low


° Engine derate

° DEF quality° Aftertreatment DEF line clogged° Aftertreatment DEF doser° Aftertreatment control module failure

FM' 14 ° Special Instructions ° AftertreatmentDiesel ExhaustFluid (DEF) dosingtoo low


’ Engine derate

° DEF quality’ Aftertreatment DEF line clogged° Aftertreatment DEF doser° Aftertreatment control module failure


° AftertreatmentDiesel ExhaustFluid (DEF) dosingtoo low


° Engine derate

° DEF quality° Aftertreatment DEF line clogged° Aftertreatment DEF doser° Aftertreatment control module failure

ECM SPN 4095, NOx Limits Exceeded Due to Interrupted Diesel Exhaust

Fluid (DEF) Dosing - MID 128 PSID 90


fault: Symptoms:

Fluid (DEF) Iowusage

FMI7 ° Mechanical system ° Dosing failure ° MIL illuminated ° DEF level

'wt ";sF:1°_’"dti"9 °t"° Aftertreatment ° Faulty DEF pump

°“° 3 WSm e " Diesel Exhaust ¢-

Leak in DEF hose

ECM SPN 4334, Afterteatment Diesel Exhaust Fluid (DEF) Dosing AbsolutePressure - MID 128 PPID 273


fault: Symptoms:

FMU ° Data valid but below ° DEF system° MIL illuminated ° DEF pump

normal operational leakage detected » NoAftertreatment » DEF hoseran e -Most sev re -|e 3| e

D'e_se| Exhaust ° Aftertreatment Diesel Exhaust FluidV

F'"‘f’ (DEF) (DEF) Doser (injector)dosing

83


Codes (DTCs)


° Short Circuit- ° MIL illuminated ° DEF pump assembly° No Aftertreatment



° Short Circuit + ° MIL illuminated ° DEF pump assembly° Open Circuit ° Yellow Check

lamp illuminated° NoAftertreatment


ECM SPN 4339, Aftertreatment SCR Feedback Control Status - MID 128PSID 90


Symptoms:


Adaptation toohigh

° N/A ° NOx sensor° Aftertreatment Diesel Exhaust Fluid

(DEF) dosing system failure


Adaptation too low ° NIA ° NOx sensor‘ Aftertreatment Diesel Exhaust Fluid

(DEF) dosing system failure° DEF quality

FMl1O Abnormal rate of

changeAdaptation toohigh

° N/A ’ NOx sensor° Aftertreatment Diesel Exhaust Fluid

(DEF) dosing system failure


Adaptation too low ° N/A ° NOx sensor° Aftertreatment Diesel Exhaust Fluid

(DEF) dosing system failure° DEF quality

ECM SPN 4354, Aftertreatment Diesel Exhaust Fluid (DEF) Line Heater 1- MID 128 PSID 103


fault: Symptoms:

FMIS ° Voltage above ° Circuit shorted+ ° N/A ° Faulty harness

normal, or shorted » Fauny connectorto h' h s urclg O e ’ Aftertreatment DEF line heat ert

failure

84


Codes (DTCs)


° Circuit Shorted- ° N/A °° Faulty connector° Aftertreatment DEF line heater 1

failure

Faulty harness


° Open circuit ° NIA ° Faulty harness° Faulty connector° Aftertreatment DEF line heater 1

failure

ECM SPN 4356, Aftertreatment Diesel Exhaust Fluid (DEF) Line Heater 3- MID 128 PSID 102


Fault Condition: Possible Possible Cause:

Symptoms:


° Circuit shorted + ° N/A °° Faulty connector° Aftertreatment DEF line heater 3

failure

Faulty harness


° Circuit shorted- ° N/A ’ Faulty harness° Faulty connector° Aftertreatment DEF line heater 3

failure


° Open circuit ° NIA ° Faulty harness°

Faulty connector° Aftertreatment DEF line heater 3

failure

ECM SPN 4374, Aftertreatment Diesel Exhaust Fluid (DEF) Pump Motor

Speed - MID 128 PSID 87


fault: Symptoms:

normal operationalrange -Most severelevel

FMI 1 ° Data valid but below ° Slow pump speed° MIL illuminated ° Faulty hamess° No Aftertreatment ° Faulty connector

Diese' Exhaust ° Aftertreatment DEF pump assemblyfailure

dosing

85

Engine Control Module (ECM) Diagnostic TroubleG'°“i’ 28 codes ( mos )

ECM SPN 4375, Aftertreatment Diesel Exhaust Fluid Pump (DEF) Drive

Percentage - MID 128 PSID 121


Symptoms:

Possible Caus e:


° Circuit shorted + MIL illuminated


° Faulty hamess° Faulty connector° Aftertreatment DEF pump assembly

failure

FMl 1 Data valid but belownormal operationalrange -Most severelevel

’ Circuit shorted -’ Open circuit

MIL illuminated


° Faulty harness° Faulty connector° Aftertreatment DEF pump assembly

failure


° Circuit shorted + MIL illuminated

NoAftertreatmentDiesel ExhaustFluid (DEF)dosing

° Faulty hamess° Faulty connector° Aftertreatment DEF pump assembly

failure

FMI 4Voltage belownormal, orshortedto low source

° Circuit shorted - MIL illuminated

NoAftertreatmentDiesel ExhaustFluid (DEF)dosing


failure




’ Faulty hamess° Faulty connector° Aftertreatment DEF pump assembly

failure




° Faulty hamess°

Faulty connector° Aftertreatment DEF pump assembly

failure

FMI14Special instructions ° Voltage to pump

out of rangeMIL illuminated



failure

86


Group 28 Codes (DTCs)

ECM SPN 4376, Aftertreatment Diesel Exhaust Fluid (DEF) Return Valve- MID 128 PSID 105

Type offault:


Possible Caus e:


Circuit shorted + ° MIL illuminated° Not possible to

perfom1 afterrun

Faulty hamess

Faulty connectorAftertreatment DEF pump assemblyfailure


Circuit shorted -Open circuit

° MIL illuminated° Not possible to

perform afterrun

Faulty hamess



Open circuit ° MIL illuminated° Not possible to

perform afterrun

Faulty harness



Possiblemechanicalproblem withaftertreatmentdiesel exhaustfluid (DEF) retumvalve

° MIL illuminated° Not possible to

perfom1 afterrun

Mechanical fau l t - DEF return line

restricted between DEF pump andDEF tank

Aftertreatment Diesel Exhaust Fluid

(DEF) pump assembly

ECM SPN 4752, Engine Exhaust Gas Recirculation (EGR) Cooler Efficiency- MID 128 SID 282

Type offault:


Symptoms:

FMI 7 ° Mechanical systemnot responding orout of adjustment

Low EGR coolerefficiency

° MIL illuminated ’ EGR cooler clogged or damaged

ECM SPN 4811, Engine Piston Coo ng Oil Pressure - MID 128 PPID 8

fault:Type of 4FMI Description: 4Fault Condition: Possible `Possible Cause:

Symptoms:

FMI 1 ¢ - ,Data valid but below Pressure below

normal operational rangerange -Most severelevel

’ Red Stop lamp ° N/A

illuminated


Codes (DTCs)

FM' 3 ° Voltage abovenormal or shorted tohigh source

metering lineShort to battery in Yel|owCheck|amp

°Faulty hames s

illuminated


° Open in themetering sidesensor circuit

circuit

Open circuit in the

ground line sensor

YellowChecklamp° Faulty sensor

illuminated °Faulty harness

ECM SPN 4813, Engine Oil Thermostat Bypass Valve Opening - MID 128PSID 72



FN" 3 ° Voltage abovenormal, or shortedto high source

° Circuit shorted + Yellow Check

lamp illuminated

Oil them1ostat is

always open

° Faulty actuator’ Faulty hames s


‘ Circuit shorted - Yellow Checklamp illuminated

Oil thennostat isalways closed

Engine mayoverheat

° Faulty actuator° Faulty hamess


° Open circuit Yellow Checklamp illuminated

Oil thermostat is

always open

May haveincreased fuelconsumption

e

° Faulty actuator° Faulty hames s

ECM SPN 4815, Engine Cooling Fan Thermal Switch Position - MID 128PPID 333Type of FMI Description: Fault Condition: Possible Possible Cau s e:

fault: Symptoms:

FN" 3 ° Voltage above ° Circuit shorted to ° Yellow Check ° Faulty harness

to high source ° Faulty sensornormal, or shorted battery lamp illuminated » Fauny hames s Connector

88


G'°“P 28 codes (ores)

to low source

FMI 4 ° Voltage below ° Short circuit- ° Yellow Check

° Faulty sensor

FM' 5 ° Current below ° Open circuit ° Yellow Check ° Faulty harness

non'nal or open lamp Illuminated ¢ Fauny harness connectorcircuit

° Faulty harness

"°"“a|- 0' Shmed ' amp Hmminated ° Faulty hames s connector

° Faulty sensor

ECM SPN 5246, Aftertreatment SCR Operator inducement Severity - MID

128 PSID 46

fault:Type of FMI Description: Possible Possible Cause:

Symptoms:Fault Condition:

FMI 0 Data valid but abovenomial operationalrange -Most severelevel

° Severe SCRsystem faultdetected -Warning fault

° Severe engine ° N/Aderate

FM|15 Data valid but abovenormal operatingrange -Least severelevel

° Moderate SCR

system faultdetected -Warning fault

° Moderate engine° N/A

derate


° SCR systemfault detected -Waming fault

° Engine derate ° N/A

89


G' °“p 28 codes ( or cs)

ECM SPN 5285, Charge Air Cooler (CAC) Temperature -MID 128 PID 52


fault: Symptoms:

not respondingproperly

too high

FMI7 ° Mechanical system° Boosttemperature ° MIL illuminated ° Air flow through charge air cooler

(CAC) too low° Charge air cooler (CAC)

normal operatingrange

too high

FM' 18 ° Data valid but below ° Boosttemperature ° MIL illuminated ’ Air tlow through charge air cooler

(CAC) too low° Charge air cooler (CAC)

ECM SPN 5298, Aftertreatment Diesel Oxidation Catalyst (DOC) Conversion

Efficiency - MID 128 PSID 99



Possible Caus e:

FM' 7 ° Mechanical systemnot respondingproperly

Hydrocarbonconversion is toolow in the DieselOxidation Catalyst(DOC)

° MIL illuminated ° Catalyst failure‘ DOC temperature sensor


Hydrocarbonconversion ls toolow in the DieselOxidation Catalyst(DOC)

° MIL illuminated ° Catalyst failure° DOC temperature sensor

ECM SPN 5392, Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Valve

_ O S S of Prime - MID 128 PSID 121

Type offault:


Possible Caus e:

FM' 7 ° Mechanical systemnot respondingproperly

AftertreatmentDiesel ExhaustFluid (DEF)pressure buildup failure

‘ MIL illuminated° Yellow Check

lamp illuminated° No Aftertreatment


° Empty DEF tank° DEF filter clogged° DEF inlet pipe leak or blockage° DEF pump assembly

FMI 31 ° Condition exists AftertreatmentDiesel ExhaustFluid (DEF)pressure buildup failure


lamp illuminated° No Aftertreatment


° Empty DEF tank° DEF filter clogged’ DEF inlet pipe leak or blockage° DEF pump assembly

90

Engine Control Module (ECM) Diagnostic TroubleG'°“'° 28 codes (m o s )

ECM SPN 5394, Aftertreatment Diesel Exhaust Fluid (DEF) Dosing Valve- MID 128 PSID 89


Symptoms:

Possible Cause:


° Low side circuitshorted to +

° MIL illuminated ° Aftertreatment DEF dosing pumpassembly


° Short to ground° Low side circuit

open

’ MIL illuminated ° Aftertreatment DEF dosing pumpassembly

FMI 3 Voltage abovenormal, orshortedto high source

° Circuit shorted + ° MIL illuminated ° Aftertreatment DEF dosing pumpassembly


’ Circuit shorted - ° MIL illuminated ° Aftertreatment DEF dosing pumpassembly


° Open circuit ° MIL illuminated’ Yellow Check

lamp illuminated

° Aftertreatment DEF doser° Aftertreatment DEF dosing pump

assembly

FMI14Diesel ExhaustFluid (DEF) Doserclogged orhoseclogged


lamp illuminated

° Afleitreatment Diesel Exhaust Fluid

(DEF) Doser clogged° Hose clogged

ECM SPN 5394, Afte- MID 128 PSID 90

Special instructions ° Aftertreatment

rtreatment Diesel Exhaust Fluid (DEF) Dosing Valve


Symptoms:

Possible Cause:


° Dosing failure° Aftertreatment

Diesel ExhaustFluid (DEF) dosingamount too low orDEF quality

° MIL illuminated° NOx emissions

too high

° NOx sensor° SCR catalyst malfunction° EGR mass flow failure° SCR inlet temperature sensor


° Dosing failure° Aftertreatment

Diesel ExhaustFluid (DEF)dosingamount too low orDEF quality

° MIL illuminated° NOx emissions

too high

° NOx sensor° SCR catalyst malfunction° EGR mass flow failure° SCR inlet temperature sensor

91

»

Engine Control Module (ECM) Diagnostic TroubleG' °"p 28 codes ( or cs)

ECM SPN 5485, Aftertreatment Diesel Exhaust Fluid (DEF) Pump Orifice- MID 128 PSID 121


Symptoms:

Possible Cause:

FM' 11 ° Root cause notknown

AftertreatmentDiesel ExhaustFluid (DEF) bleedoritice clogged


lamp illuminated’ No Aftertreatment


° Bleed orifice° Aftertreatment Diesel Exhaust Fluid

(DEF) pressure sensor

92

Documents

SPN Wheel-BasedVehicle Speed MID 128 84eurotransexpress.com/files/volvocodes.pdf · Group28 Engine Control Module (ECM) Diagnostic Trouble Codes(DTCs) ECM SPN 84, Wheel-BasedVehicle