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Application Standard

Subject This document is for the following applications:

2013 US EPA Aftertreatment Controls Application Standard

Automotive Industrial Marine G-Drive Genset Filtration Emissions Solution

Date: November 10th, 2015 Document Number AS351.01

Engine Models included: 2013 EPA Heavy Duty & Medium Duty Automotive

Author: Ragibul Huq(ML305) Page 1 of 31

This Application Standard outlines the main Aftertreatment System components and the known Cummins Emission Solutions requirements for application in on-highway truck and bus. This document contains information that Cummins Emission Solutions has learned during development to date. Revisions to this document are anticipated as experience is gained. This document should be used by the OEM to assist in vehicle design but is not a substitute for validation of individual vehicle applications of the Aftertreatment System.

On Board Diagnostics (OBD) Requirements – HD OBD The following components are HD OBD regulated. The OEM supplied OBD components are the responsibility of the OEM to implement and install according to the HD OBD Requirements specified in this document.

HD OBD Components

Dosing Module (DM) Supply Module (SM) DEF tank temperature sensor DEF tank level sensor DEF quality sensor (optional) DEF line heater and relay DEF tank coolant flow valve DEF Suction, Pressure and Throttle lines Dosing system wiring harness NOx sensors (Engine Out and SCR Out) Wiring from SCR outlet NOx sensor to ACM

Ammonia (NH3) sensor Exhaust Gas Temperature Sensors (EGTS) Diesel Particulate Filter (DPF) HC Doser DPF Delta Pressure sensor DPF Output Pressure sensor

This document supersedes the Application Standard dated September 15, 2014


Table of Contents

1. General Information ................................................................................. 4

1.1 Purpose ........................................................................................................ 4

1.2 Reference Documents .................................................................................. 4

1.4 CES Acronyms ............................................................................................. 5

2. Installation Requirements ......................................................................... 6

3. Aftertreatment System ........................................................................... 10

4. Dosing System (SCR) ............................................................................ 11

4.1 Dosing System – Purging Cycle ................................................................. 11

4.2 DEF Line Heater Relay ............................................................................... 12

4.3 DEF Supply Module Heater Relay ............................................................. 12

4.4 DEF Coolant Flow Valve ............................................................................ 12

4.5 DEF Tank and Line Heating ....................................................................... 13

4.6 DEF Tank – Temperature Sensing ............................................................. 13

4.7 DEF Tank – Level Sensing Overview ......................................................... 14

4.7.1 DEF Level Sensor Interface Specifications .................................................... 15

4.7.2 DEF Level Sensing – Warning and Inducement Levels ................................. 15

4.7.3 Resolution and Accuracy ................................................................................ 15

4.7.4 Special Considerations for Discrete Step (Float) Level Sensors .................... 16

4.7.5 Special Considerations for Powered Sensors ................................................ 16

4.7.6 Special Requirements for Active Sensors ...................................................... 16

4.7.7 Other Considerations ..................................................................................... 16

4.8 DEF Level Gauge ....................................................................................... 17

4.9 DEF Dosing System Harness Connectors ................................................. 17

5. Aftertreatment Sensors .......................................................................... 18

5.1 In-Tank DEF Quality Sensor ....................................................................... 18

5.2 NOx Sensors .............................................................................................. 18

5.3 Exhaust Gas Temperature Sensors (EGTS) .............................................. 18

5.4 Ammonia (NH3) Sensor (When applicable) ................................................ 18

5.5 DPF Dual Delta Pressure and Gage Sensor .............................................. 19


5.6 OEM Ambient Air Temperature Sensor ...................................................... 19

5.7 Particulate Matter (PM) Sensor .................................................................. 20

6. SCR End-of-Line (EOL) Test ................................................................. 21

6.1 Pre EOL Test Conditions ............................................................................ 21

6.2 EOL Test Procedure ................................................................................... 21

6.3 EOL Pass Criteria ....................................................................................... 21

7. DPF End-of-Line (EOL) Test Procedure ................................................ 22

Appendix A: Electrical Schematic of CM2220-F / CM2220-H Aftertreatment System ....................................................................................................... 23

Appendix B: Electrical Schematic for Sensors with Delegated Assembly . 24

Appendix C: Aftertreatment System OEM Connectors .............................. 25

Appendix D: OEM Connectors Supplier Contact ....................................... 26

Reference Tables ....................................................................................... 27

Revision History ......................................................................................... 30


1. General Information

1.1 Purpose

The purpose of this document is to provide application guidelines for integrating the Aftertreatment systems including Diesel Particulate Filter (DPF), Selective Catalytic Reduction (SCR) and sensors with the CES, Aftertreatment Control Module (ACM). These guidelines focus on SCR control system requirements for proper system operation, engine diagnostic operation, and compliance with 2013 EPA regulations specific to Engine type. Additional information related to the mechanical installation of the SCR aftertreatment system may be found in “2013 US EPA Aftertreatment Mechanical Installation Requirements”.

1.2 Reference Documents

AS311.01 “2013 US EPA Aftertreatment Mechanical Installation Requirements” AS351.03 “Remote Mount ACM Application Standard – CM2220-F” ISO 20653 Road vehicles - Degrees of protection (IP-Code) — Protection of electrical equipment against foreign objects, water and access


1.4 CES Acronyms

ACM Aftertreatment Control Module

DEF Diesel Exhaust Fluid

DM Dosing Module

DM1 Diagnostic Message 1 - Active Diagnostics Trouble Codes

DPF Diesel Particulate Filter

DRT Decomposition Reactor Tube

ECU Electronic Control Unit

EGTS Exhaust Gas Temperature Sensor

EOL End-of-Line

FMI Failure Mode Identifier

MIL Malfunction Indicator Lamp

NH3 Ammonia

OBD On Board Diagnostics

PM Particulate Matter

SCR Selective Catalytic Reduction

SM Supply Module

SPN Suspect Parameter Number

VEPS Vehicle Electronic Program Station


2. Installation Requirements

Because of the complex nature of this installation guideline, the installation requirements will be singled out using bold text “MUST” for clarity throughout the document. In other words, the use of the term MUST denotes a requirement that must be followed for obtaining CES concurrence for an approved installation of the Aftertreatment system. Aftertreatment Control Module (ACM)

1. The ACM MUST NOT be exposed to temperatures outside the operating range -40 ºC and +105 ºC.

2. The ACM MUST be mounted in where it meets IP6K9K requirement according to ISO 20653 standard.

3. The ACM case MUST NOT be in contact with the vehicle chassis ground such that a differential voltage of more than 0.5 volts exists between case and Vbatt (-).

4. The OEM harness MUST be secured to a point at the same vibration level as the connection between the two in order to reduce relative motion between the mating connectors and reduce fretting corrosion.

5. The OEM harness MUST be properly supported so that it does not induce excessive tension on the extension connector or the ACM connector, either as installed or by relative motion between the engine and the harness connection.

6. The OEM harness MUST be routed / supported so that it is not damaged by interference with other engine /equipment components.

7. If the vehicle undergoes any maintenance activities or repairs that involve electric welding, the ACM connections MUST be disconnected completely (the 96-way-mating connector and the 58-way mating connector unplugged) before welding.

8. Refer to document “Remote Mount ACM Application Standard – CM2220-F” for additional requirements.

9. Please refer to Appendix A: Electrical Schematic of CM2220-F / CM2220-H Aftertreatment System for Electrical schematics of ACM 2220.

DEF Systems

10. OEM MUST ensure that any components in contact with DEF should not corrode in the presence of DEF.

11. OEM MUST ensure that all DEF sensor assemblies should properly seal the sensors from the outside environment and demonstrate capability for normal vehicle vibratory and shock loads.

Dosing Module (DM)

12. OEM MUST meet electrical requirements of DM as defined within Table 7.

13. Dosing Module and its connectors MUST NOT be exposed to temperatures greater than 120 ºC (248 ºF).

Supply Module (SM)

14. OEM MUST meet electrical requirements of SM as defined within Table 7.

15. Supply Module MUST NOT be exposed to temperatures greater than 85 ºC (176 ºF).

16. Supply Module system voltage MUST be the same as vehicle battery voltage.


Supply Module Heater Relay

17. OEM MUST power the DEF Supply Module Heater equipment to ensure vehicle acceptance for all seasons.

18. Supply Module Heater Relay MUST be the same as vehicle battery voltage.

19. Supply Module Heater relay MUST be a normally open standard relay.

DEF Tank Level Sensing

20. A DEF tank level sensor for indicating percent remaining usable DEF MUST be installed in order to meet the EPA requirements associated with driver warning and inducement. Errors MUST be on the side of reporting that there is less DEF than the actual usable volume remaining in the tank.

21. If the DEF level sensor is designed to measure distinct fluid levels, the sum of two adjacent levels MUST be less than 20% of total usable volume of the tank. The 0% and 100% levels MUST be sensed.

22. Tank level sensing MUST adhere to Table tank level sensing requirements defined within this document.

DEF Level Gauge

23. Vehicle (In-cab) MUST be equipped with DEF level gauge and DEF lamp to indicate low DEF level.

24. DEF level gauge and DEF lamp MUST be continuously visible to the operator.

DEF Tank Temperature Sensing

25. Vehicles MUST be equipped with DEF tank temperature sensing capabilities.

26. Tank temperature sensing MUST adhere to Table tank level sensing requirements defined within this document.

DEF Line Heating

27. DEF lines (Pressure, Suction, and Throttle Lines) MUST NOT exceed maximum lengths outlined

in 2013 US EPA Aftertreatment Mechanical Installation Requirements.

28. DEF line ID (Pressure, Suction, and Throttle Lines) of 3 – 3.5 mm MUST:

29. Conform to DEF line heating Table 10 for electrical requirements.

30. Conform to system configuration layout as defined within 2013 US EPA Aftertreatment Mechanical Installation Requirements.

31. Successfully pass on-vehicle pressure drop testing as defined within 2013 US EPA Aftertreatment Mechanical Installation Requirements.

32. OEM MUST provide suitable Pressure, Suction, and Throttle Line heating equipment to ensure vehicle acceptance for all seasons.

33. OEM MUST provide connectors for these lines.

34. OEM MUST meet electrical requirements defined within Table 10.

DEF Line Heater Relay

35. OEM MUST provide a DEF Line Heater Relay (The three available options are [A] Single 3-pole relay, [B] Three 1-pole relays and [C] Single relay with Diode Line Isolation).

36. DEF Line Heater Relay MUST be rated for vehicle battery voltage.


37. OEM MUST meet electrical requirements of DEF Line Heater Relay as defined within Table 2 in DEF line heater relay section.

DEF Tank Coolant Flow Valve

38. OEM MUST meet electrical requirements of valve as defined within Table in DEF coolant flow valve section.

39. Valve voltage rating MUST be the same as the engine voltage.

Dosing System Wiring Harness

40. The OEM MUST procure a wiring harness to connect the Dosing System including the Supply Module, Dosing Module, line heaters, coolant valve, battery, keyswitch, ground, J1939, tank sensors and EGTS. See Figure 4 for electrical schematics.

41. All unpopulated connector cavities MUST be fitted with a proper sized sealing plug to prevent dirt and moisture intrusion.

DPF Electrical Connectors

42. Diesel Particulate Filter (DPF) connectors MUST NOT be subjected to temperatures greater than 150 ºC (302 ºF).


SCR Electrical Connectors

44. Selective Catalyst Reduction (SCR) connectors MUST NOT be subjected to temperatures greater than 150 ºC (302 ºF).


NOx Sensor

46. OEM MUST meet electrical requirements of NOx sensor as defined within Table .

47. NOx sensor ECU and connectors MUST NOT be subjected to temperatures greater than 125 ºC (257 ºF).

48. NOx sensor wiring MUST NOT be subjected to temperatures greater than 200 ºC (392 ºF).

49. NOx sensor wiring between ACM and sensing element MUST NOT be modified.

50. NOx sensor MUST NOT be grounded to engine block stud.

51. NOx sensor voltage rating MUST be the same as vehicle battery voltage.

NH3 Sensor (When Applicable)

52. OEM MUST meet electrical requirements of NH3 sensor as defined within Table 9.

53. NH3 sensor ECU and connectors MUST NOT be subjected to temperatures greater than 125 ºC (257 F).

54. NH3 sensor wiring MUST NOT be subjected to temperatures greater than 200 ºC (392 F).

55. NH3 sensor wiring between module and sensing element MUST NOT be modified.


56. NH3 sensor MUST NOT be grounded to engine block stud.

In-Tank DEF Quality Sensor

57. In-Tank DEF Quality Sensor connector MUST have gold plated terminal contacts.

58. OEM MUST meet electrical requirements of In-Tank DEF Quality Sensor as defined within Table 13.

59. In-Tank DEF Quality Sensor and connectors MUST NOT be subjected to temperatures greater than 125 ºC (257 ºF).

60. In-Tank DEF Quality sensor MUST NOT be grounded to engine block stud.

DPF/SCR Exhaust Gas Temperature Sensor (Datalink Temperature Sensor)

61. OEM MUST meet electrical requirements of Temperature sensor as defined within Table 1.

62. Temperature sensor ECU and connectors MUST NOT be subjected to temperatures greater than 140 ºC (284 ºF).

63. Temperature sensor wiring MUST NOT be subjected to temperatures greater than 240 ºC. Temperature sensor wiring MUST NOT be modified.

64. Temperature sensor MUST NOT be grounded to engine block stud.

65. Temperature sensor voltage rating MUST be the same as engine voltage.

Particulate Matter (PM) Sensor (If Applicable)

66. OEM MUST meet electrical requirements of PM sensor as defined within Table 14.

67. PM sensor ECU and connectors MUST NOT be subjected to temperatures greater than 105° C and 140° C.

68. PM sensor wiring MUST NOT be subjected to temperatures greater than 200° C.

69. PM sensor wiring between module and sensing element MUST NOT be modified.

OEM Ambient Air Temperature Sensor

70. OEM Ambient Air Temperature sensor MUST meet the electrical requirements as defined.

71. The measured temperature MUST be within ± 5 deg C of the actual ambient temperature (including any effects from the sensor mounting location).

72. The measured average temperature over a 10 minute time window MUST be within ± 15 deg C of the actual ambient temperature (including any effects from the sensor mounting location).

73. The accuracy of the sensor system MUST be checked when the vehicle speed is greater than 35 MPH. The accuracy of the sensor system MUST also be tested when the vehicle is stationary.


3. Aftertreatment System

A block diagram of the Aftertreatment Control System is shown below.

Figure 1 - Aftertreatment Control System Block Diagram

SCR Catalyst

Decomposition

Reactor

Dosing

Module

Diesel Particulate

Filter

NOx Sensor

T TT P

Diesel Exhaust

Fluid Tank

DEF Quality Sensor

DEF Level Sensor

DEF Temp. Sensor

NOx ECM

NOx Sensor

T TNH3 Sensor (If

Applicable)

Engine

ECM

Supply

Module

ACM

Pwr & GndPwr & Gnd

Pwr & Gnd

Pwr & Gnd

Coolant Flow Valve

DEF Line

Heating

Coolant Lines

DEF Supply Line

DEF Throttle Line

DEF Pressure Line

Red = Cummins Emission Solutions

Supplied

Others = OEM Supplied

Coolant Lines

DEF Lines

Analog / OEM Wiring

J1939 Wiring

2013 US EPA Aftertreatment Control System

PM Sensor

The SCR control algorithm is embedded within the Aftertreatment ACM. The ACM receives electrical signals and Datalink messages from sensors and Aftertreatment System components. Signals received by the ACM include: SCR catalyst inlet and outlet temperature, keyswitch, SCR out NOx, NH3 concentration, DEF concentration and Temperature, DEF Tank temperature and Level, soot level (PM).


4. Dosing System (SCR)

The SCR aftertreatment system determines and commands dosing rates for current engine operating conditions to reduce tailpipe emissions levels. The Dosing system is comprised of the ACM, Supply Module, and Dosing Module. The ACM is the central control for the Diesel Exhaust Fluid Dosing System and handles all dosing activity, tank level sensing, and temperature sensing. The Supply Module, a high accuracy electronic pump works in conjunction with the dosing module for injecting the required DEF quantity into the exhaust after-treatment system. Figure 4 details the electrical schematic for the Diesel Exhaust Fluid Dosing System used in the Aftertreatment System. The following components are within the scope of this document. The OEM supplied components are the responsibility of the OEM to implement and install, however CES will work with OEM to integrate these components into their vehicle systems. See Figure 1 and Table 1 below for more details:

Table 1 - SCR electrical components responsibility

OEM Supplied CES Supplied

Diesel Exhaust Fluid tank Diesel Exhaust Fluid tank coolant valve Diesel Exhaust Fluid tank level sensor Diesel Exhaust Fluid tank temperature sensor Diesel Exhaust Fluid tank heating Diesel Exhaust Fluid line heating Dosing System Wiring harness Diesel Exhaust Fluid Lines Diesel Exhaust Fluid Line Heater Relay Wiring from DPF connectors to ACM Wiring from SCR Sensor connectors to ACM Wiring from DEF Quality sensor to ACM In-Tank DEF Quality Sensor

ACM Dosing Module Supply Module DPF electrical connectors / wiring Delta P Sensor SCR electrical connectors / wiring Exhaust Gas Temperature Sensors NOx Sensor with sensor ECU NH3 Sensor with sensor ECU (When applicable) PM Sensor with sensor ECU HC Doser

4.1 Dosing System – Purging Cycle

Dosing System diagnostics will prevent the dosing pump from operating when the pump detects it is too cold for it to operate and when the DEF tank temperature indicates that the DEF supply is frozen.

The Purge Cycle is necessary to protect the Dosing System from expansion of Diesel Exhaust Fluid during hard freezes which will damage dosing system components (temperatures below -11 ºC, 12 ºF). The Purge cycle functions by engaging the reverting valve (located within Dosing Supply Module) which pumps the DEF inside the suction and pressure lines back into the tank. Purging starts at keyswitch OFF and could take up to 60 seconds for completion. However, power MUST be available to the ACM for at least 100 seconds after keyswitch OFF to ensure that all shutdown activities are completed along with purging. During service events battery MUST NOT be disconnected for at least 100 seconds after keyswitch OFF. If power is to be disconnected from ACM prior to waiting for the entire 70 s for the shutdown to complete then one of the following options must be used:

1. A time delay relay powered disconnect wired into ACM power circuit that provides uninterrupted battery power to ACM for 100 seconds after keyswitch is OFF.

2. Disconnect switch with proper labeling on or near the switch that warns operator of damages associated with interrupting purging cycle prematurely.


4.2 DEF Line Heater Relay

The DEF Line Heater Relay is controlled by the ACM and MUST be procured by the OEM. The DEF

Heater Relay enables line heating for all three DEF lines (pressure, throttle/backflow, and suction) and

stays on when commanded ON. When the DEF Line Heater relay is energized by the ACM, the DEF line

heaters are powered up by the battery voltage. When the relay is de-energized, the power to the line heaters

is cut off.

The line heaters are controlled by a high side relay (The three available options are [A] Single 3-pole relay,

[B] Three 1-pole relays and [C] Single relay with Diode Line Isolation), all lines ON or all lines OFF. Each

line heater circuit must be separated when the relay is open to allow individual line diagnostics to complete.

Line heater return must be through the ACM also to support line heater diagnostics.

Table 2 - The DEF Line Heater Relay requirements.

Item Requirement

Terminal Action Normally Open

Coil Diode Protected

Coil Supply Voltage Battery Voltage

Maximum Coil Current 0.75 A

Maximum Coil Inductance 12V Relay – 80mJ Load Limit (0.5* Inductance * Current^2)

Minimum Contact Rating (Total) 12 Amp Continuous (12 Volt)

Minimum Contact Rating (Pressure Line)

5 Amp Continuous (12 Volt)

Minimum Contact Rating (Suction Line) 3.5 Amp Continuous (12 Volt)

Minimum Contact Rating (Throttle Line) 3.5 Amp Continuous (12 Volt)

Line Isolation Diode Current Rating 6 Amp Continuous (12 Volt)

4.3 DEF Supply Module Heater Relay

The DEF Supply Module Heater relay is controlled by the ACM. OEM MUST power the DEF Supply Module Heater equipment to ensure vehicle acceptance for all seasons. When the DEF Supply Module Heater relay is energized by the ACM, the DEF Supply Module heater is powered up by the battery voltage. When the relay is de-energized, the power to the heater is cut off.

Table 3 - The DEF Supply Module Heater relay requirements.

Item Requirement

Terminal Action Normally Open

Coil Diode Protected

Coil Supply Voltage Battery Voltage


Maximum Coil Inductance 12V Relay - 80mJ Load Limit (0.5 * Inductance * Current^2)

Minimum Contact Rating 20 Amp Continuous

4.4 DEF Coolant Flow Valve

The DEF Coolant Flow Valve is also controlled by the ACM. The coolant flow valve allows coolant to flow to the DEF tank for proper DEF tank heating. OEM MUST supply and connect the DEF Coolant Flow Valve and plumbing equipment to ensure vehicle acceptance for all seasons.


When the DEF Coolant Flow Valve is energized by the ACM, coolant is allowed to flow to the DEF Tank for proper heating. When the valve is de-energized, the coolant flow is cut off. It is recommended that the valve sourced incorporates coil suppression.

Table 4 - The DEF Coolant Flow Valve requirements.

Item Requirement

Valve Action Normally Closed


Maximum Coil Inductance 12V Relay - 80mJ Load Limit (0.5 * Inductance * Current^2)

4.5 DEF Tank and Line Heating

The freezing point of DEF solution is -11 ºC (12 ºF). Heated lines and connectors are required for all installations. The ACM is capable of controlling an external relay for electric line heaters and a valve for a coolant loop tank heater. See the Electrical Specifications Table 10 at the end of this document for the list of complete electrical requirements. DEF Tank coolant control valve and Line Heating are managed by two heating strategies: Defrost and Maintenance Control.

1. Defrost control is enabled at keyswitch ON if ambient temperature is below temperature threshold of 0 ºC.

2. Maintenance control is enabled once defrost has finished and threshold temperature of 5 ºC is reached.

Note: Current draw will be dependent upon heating condition. DEF Line ID of 3 – 3.5 mm can be used provided that:

1. DEF system meets all other related electrical specifications in Table 7.

2. Dosing system configuration meets layout and line length specifications as defined within “2013 US EPA Aftertreatment Mechanical Installation Requirements”.

3. OEM successfully completes on-vehicle pressure drop validation test per “2013 US EPA Aftertreatment Mechanical Installation Requirements”.

4.6 DEF Tank – Temperature Sensing

The DEF Tank Temperature Sensor is used to monitor temperature within the tank and control tank heater activation. The sensor is located at the end of the DEF Suction Tube inside the DEF Tank. The DEF Tank Temperature Sensor can be a resistive sensor or a multiplexed sensor in the Engine / Aftertreatment network. For a hardwired DEF Tank Temperature Sensor, the sensor is connected to a Resistive Analog A/D Input of the ACM whose signal provides a representation of the DEF tank temperature. The DEF Tank Temperature Sensor converts the detected temperature into a resistance which the ACM then converts to a temperature using the Temperature vs. Resistance listed below in Table 6. The ACM is designed for a temperature sensor with the following characteristics listed in Table . For a multiplexed DEF Tank Temperature Sensor, the DEF Tank Temperature information is broadcast over the Engine / Aftertreatment communication network.


Table 5 - Diesel Exhaust Fluid Tank Temperature Characteristics

Reference temperature 25 °C

Reference resistance value 500 Ω

Reference tolerance 5 %

Table 6 - Diesel Exhaust Fluid Tank Temperature Sensor Input Table

Temperature

(ºC)

Min Resistance

(Ω)

Nominal Resistance

(Ω)

Max Resistance

(Ω)

-55 25716.50 27070.00 28423.50

-50 18757.75 19745.00 20732.25

-45 13827.25 14555.00 15282.75

-40 10298.00 10840.00 11382.00

-35 7747.25 8155.00 8562.75

-30 5880.50 6190.00 6499.50

-25 4505.85 4743.00 4980.15

-20 3481.75 3665.00 3848.25

-15 2712.25 2855.00 2997.75

-10 2128.95 2241.00 2353.05

-5 1684.35 1773.00 1861.65

0 1342.35 1413.00 1483.65

5 1076.35 1133.00 1189.65

10 869.25 915.00 960.75

15 706.33 743.50 780.68

20 577.60 608.00 638.40

25 475.00 500.00 525.00

30 392.83 413.50 434.18

35 326.61 343.80 360.99

40 273.03 287.40 301.77

45 229.33 241.40 253.47

50 193.52 203.70 213.89

55 164.07 172.70 181.34

60 139.75 147.10 154.46

Note: Please contact the CES Application Engineering representative when using an analog combination sensor for DEF tank temperature and level information.

4.7 DEF Tank – Level Sensing Overview

The DEF Tank Level sensor is used to monitor remaining usable DEF volume in terms of percent of total usable volume and provides the information for driver notification of low DEF level warnings and inducements to meet EPA requirements.

CES requires vehicles to be equipped with a DEF tank level sensor for indicating percent remaining usable DEF in order to meet the EPA requirements associated with driver warning and inducement. The DEF Tank Level Sensor can be either a hardwired (passive or active) or a multiplexed sensor. For a hardwired DEF Tank Level Sensor, sensor is connected to a Resistive Analog A/D Input of the ACM (for passive sensor) whose signal provides a representation of the DEF tank level. ACM converts the volume representative signal through an A/D converter to provide DEF tank level.


For a multiplexed DEF Tank Level Sensor, the DEF Tank Level temperature information is broadcast over the Engine / Aftertreatment communication network. For the comprehensive view required to design the DEF tank system “2013 US EPA Aftertreatment Mechanical Installation Requirements” must also be considered: Note: Please contact the CES Application Engineering representative when using an analog combination sensor for DEF tank temperature and level information.

4.7.1 DEF Level Sensor Interface Specifications

The DEF level sensor shall provide a signal proportional to the percentage of total usable volume of DEF remaining in the tank. The linearization table and out-of-range (OOR) values are shown in Table 7. A simplified schematic of the input circuit is shown in Figure 2 for design purposes. Rsense represents a passive resistance sensor that would typically be a potentiometer or ladder network connected to a float. An active sensor would inject its signal here with reference to ground and Rsense would not be present. See “2013 US EPA Aftertreatment Mechanical Installation Requirements”.

Table 7 - Diesel Exhaust Fluid Level Sensor Linearization Table

DEF Tank

Level (%)

Voltage (Vdc)

OORH >4.68

0 4.00

100 0.50

OORL <0.25

Figure 2 – DEF Tank Level Sensing Simplified Analog Input Circuit

1000

ACM

4.7.2 DEF Level Sensing – Warning and Inducement Levels

Warning and Inducement levels requirements are selectable by the engine manufacturer as guided by the EPA.

4.7.3 Resolution and Accuracy

The sum of two adjacent steps for a passive sensor must be less than 20% of total usable volume of the tank. For example, a sensor may have switch points at 59%, 51%, and 41%; where the two adjacent steps equal 18% of tank volume. However, a level sensor may not have switch points at 62%, 51%, and 41%; where the two adjacent steps equal 21% of tank volume.


Sensors that accurately detect percent usable DEF in a continuous or high resolution manner would meet these requirements as long as accuracy is maintained at +0.0/-5.0% of total usable DEF volume. In all cases, level transitions shall be sensed at better than +0.0/-5.0% of total usable volume at standard temperature and pressure. The 0% and 100% levels must be sensed.

4.7.4 Special Considerations for Discrete Step (Float) Level Sensors

When selecting resistance values for the 100% and 0% levels consider the system tolerances to ensure those levels are detected. The input circuit error at the 100% point could be as much as - 0.9% and the error for the 0% point could be as much as 1.3% not including the tolerance error of the sensor. It is recommended the nominal voltage for 100% point should not exceed 0.5 Vdc and the nominal voltage of the 0% point should be no less than 4.14 Vdc to account for worst case input circuit tolerances. Sensor tolerances will require additional compensation to ensure the 0% and 100% levels are detected. Care should also be taken such that the selected values do not result in OOR values. The CES ACM will interpret voltages between 0.50 Vdc and 0.25 Vdc as 100% DEF level and interpret voltages between 4.14 Vdc and 4.68 Vdc as 0% DEF level.

4.7.5 Special Considerations for Powered Sensors

The available power supply from the ACM is 5 vdc ± 0.10 volts and maximum current draw shall not exceed 150 mA for all components connected to the 5 Volt sensor supply.

4.7.6 Special Requirements for Active Sensors

1. A loss of power or ground to the sensor shall result in an out-of-range value from Table . 2. An active level sensor shall provide a valid signal within 5 seconds of keyswitch ON 3. Active level sensors shall not provide a signal with a step greater than 10% per second. 4. The sensor supply will provide continuous voltage to the sensor when the keyswitch is in the ON and Crank positions.

4.7.7 Other Considerations

For OEMs choosing to sense at the minimum resolution allowed, be aware that it is the function of the tank and sensor combination to provide a signal that can be reliably interpreted. Excessive sloshing may result in a signal that cannot be interpreted with accuracy.

Beware of the switching behavior of float type sensors. Transitions cannot be out of range.

Consider the transition from one discrete level to another. Latching switches will over-report the amount of DEF as tank level decreases. Non-latching techniques will default to the next lower level, which will cause earlier than desired inducement if the switch positions are not slightly above the trigger values.

A strongly suggested best practice is to use the flexibility given in this interface to provide a consistent driver experience with the refill intervals for DEF. Consider the training and service requirements that Aftertreatment Systems pose to the end user.


These requirements have been developed to allow the OEM and their vendors the highest degree of flexibility in factoring in the conflicting criteria of tank footprint, range and cost. It is the OEM’s sole responsibility to conform to this specification, provide adequate performance and reliability.

4.8 DEF Level Gauge

CES requires that the OEM provide a DEF level gauge and DEF lamp that is continuously visible to the operator, in order to notify the operator of DEF tank level and low level warnings. It is not necessary to have the DEF gauge document when the DEF low warnings/inducements will occur, however it is recommended this information be documented on the DEF tank, sun visor or vehicle service manual so that the operator will be informed when a warning/inducement takes place.

4.9 DEF Dosing System Harness Connectors

OEM is responsible for ensuring operational voltage range is maintained at the rated maximum current draw conditions. The OEM must procure a wiring harness to connect the Dosing System including the Supply Module, Dosing Module, DEF line heaters, DEF tank coolant flow valve, tank sensors, delegated assembly connectors, Engine / Aftertreatment Communication Network switched battery power & return, keyswitch, etc,. For any components with wiring approaching from above like connector L in Figure 3, make sure to provide a drip loop to help prevent water intrusion.

Figure 3 - Wire Harness Guidelines DEF Dosing System

1. Ensure no connectors are mounted vertically. Horizontal mounting or connecting from below is best.

2. Use mounting clips to avoid abrasion or impingement of the harness against: sharp surfaces, moving parts, and radiant heat sources.

3. Avoid routing harness directly beneath fluid fills and serviceable items (oil filters etc.).

4. Provide strain relief using mounting clips behind each connection.

5. Troubleshooting for electromagnetic noise problems…

a. By default, twist only circuits shown on schematic. If electromagnetic noise proves to be a problem on other circuits, twisting them may help.

b. Route power and ground inputs to ACM in separate bundles from other wires.


c. Also, route circuits for heating (lines and supply module) in their own bundle (separate from sensors).

d. Avoid other high current and high intensity lines from other harnesses.

6. Ensure mating terminals are using the same plating (tin to tin, gold to gold, etc.).

5. Aftertreatment Sensors

Communication between ACM and Datalink Sensors (NOx, PM, EGTS, In-Tank DEF Quality Sensor and, when applicable, NH3 Sensor and Tank Level and Temperature Sensors) is via the Engine / Aftertreatment Communication Network which uses J1939 protocol.

5.1 In-Tank DEF Quality Sensor

The In-Tank DEF Quality Sensor detects poor reagent (DEF) quality which can affect exhaust emissions and can result in engine and vehicle derates as a driver inducement to ensure proper DEF solution is placed into the DEF tank. The sensor communicates with ACM via the Engine / Aftertreatment communication network which uses J1939 protocol. DEF Quality Sensor while, meeting CES requirements, should be procured by the OEM. Please contact CES Application Engineering for detailed requirements specification for the DEF Quality Sensor installed in the DEF Tank.

5.2 NOx Sensors

The NOx sensor is located at the outlet of the SCR while the NOx ECU (electronic control unit) is mounted on the Sensor table platform attached to SCR. Maximum temperature of the ECU must not exceed 125 ºC (257 ºF) for 12V system. The wiring harness between the NOx sensor probe and the control module must not be modified.

5.3 Exhaust Gas Temperature Sensors (EGTS)

EGTS module consists of two thermocouples which are installed at the inlet and outlet openings of the SCR. These thermocouples detect temperature levels of exhaust gas entering and exiting this device. The DPF contains another EGTS module with three thermocouples, in which two are located at the DOC (Diesel Oxidation Catalyst) and one located at the outlet of the DPF (DOC Inlet Temperature Sensor, DOC Outlet Temperature Sensor, and DPF Outlet Temperature Sensor). Each of the sensors will be routed to a Temperature module on the SCR and DPF sensor tables. They are then connected to the Engine/Aftertreatment Communication Network bus via a SCR Thermocouple Controller and DPF Thermocouple Controller.

5.4 Ammonia (NH3) Sensor (When applicable)

The NH3 sensor is located at the middle of the SCR while the NH3 sensor ECU (electronic control unit) is mounted on the SCR sensor table. Maximum temperature of the ECU must not exceed 125 ºC. The NH3 sensor monitors (real time) conversion of NH3 in the exhaust. The NH3 sensor communicates with the ACM via the J1939 datalink.


5.5 DPF Dual Delta Pressure and Gage Sensor

The Diesel Particulate Filter Differential Pressure Sensor detects the exhaust gas pressure drop through the filter within the aftertreatment system. The differential pressure sensor is used to determine the status of the filter and determine optimum conditions to regenerate. This sensor is provided and installed on the particulate filter. The thermal shielding effectiveness MUST be demonstrated by the OEM for installed distances less than 25 mm (1 inch).

The differential pressure sensor uses a Ratiometric Analog Input which provides a pressure representative signal through an A/D converter in the ACM. The ACM uses the pressure information as an input to control the exhaust aftertreatment system.

The Diesel Particulate Filter Outlet Pressure Sensor detects the exhaust gas pressure as it exits the aftertreatment filter system. The pressure sensor is used to determine the status of the filter and determine optimum conditions to regenerate. This sensor is provided and installed on the particulate filter.

The pressure sensor uses a Ratiometric Analog Input which provides a pressure representative signal through an A/D converter in the ACM. The ACM uses the pressure information as an input to control the exhaust aftertreatment system.

The DPF Dual Delta and Gage Sensor module is mounted on the DPF sensor table.

5.6 OEM Ambient Air Temperature Sensor

The Ambient Air Temperature Sensor detects the vehicle’s external ambient air temperature which is measured by the ECM and communicated to the ACM. The ACM uses this temperature sensor to make control decisions regarding the OBD and the allowance of automatic or manual overrides of the Idle Shutdown feature. The OEM SHOULD mount the ambient air temperature sensor outside of the vehicle, preferably to place it in a shaded position on inner frame rail away from radiant heat sources, i.e. engine, transmission, exhaust, direct sunlight, etc. where radiant heat would provide a false temperature gradient. In addition, the area chosen for installation SHOULD not be readily accessible by the operator to prevent system tampering. A typical example of the installation for the sensor would be underneath the truck’s fifth wheel trailer coupling or in an area on the inner frame rail above the rear axle. The OEM Ambient Air Temperature Sensor converts the detected temperature into a resistance which the ECM then converts to a temperature and communicates to the ACM.

OEM Ambient Air Temperature sensor MUST meet the requirements described in Table 8 below.

Table 8 - OEM Ambient Air Temp sensor Requirements

Item Requirement

Temperature Range - 60 to +150 ºC (-76 to 302 ºF)

Sensor Accuracy ±5 °C when Vehicle Speed is > 35 mph ±15 °C when vehicle is parked, engine is at low idle

Sensor Mounting See “Sensor Mounting/Accuracy Requirements” section below

Sensor Mounting / Accuracy Requirements

The ambient air temperature sensor SHOULD measure temperature as close to ambient as possible under all operating conditions with minimal impact from adjacent heat/cooling sources.


The accuracy of the sensor system MUST be checked when the vehicle speed is greater than 35 MPH. The measured temperature MUST be within +/- 5 deg C of the actual ambient temperature (including any effects from the sensor mounting location).

The accuracy of the sensor system MUST also be tested when the vehicle is stationary. To run the test, turn the AC system off, and run the engine until the coolant thermostat is fully open. Park the vehicle and let the engine run at low idle for 15-20 minutes to stabilize coolant temperature and the surrounding components. With the engine running at low idle, record the ambient air temperature sensor data for 10 consecutive minutes. The measured average temperature over a 10 minute time window MUST be within +/- 15 deg C of the actual ambient temperature (including any effects from the sensor mounting location).

A thermocouple mounted in a plastic tube on the mirror bracket SHOULD be used as the reference ambient temperature. The ACM uses ambient air temperature for various diagnostic and control algorithms.

5.7 Particulate Matter (PM) Sensor

The particulate matter sensor is located at the SCR outlet tube. It is used to meet the OBD requirement of detecting degraded DPF filtration capacity. The particulate matter sensor does not directly indicate soot load in the filter, but it does provide a means of measuring soot at the tailpipe. The soot level is communicated to the ACM via the J1939 datalink.

Table 9 - PM sensor power (Battery +) and return (Battery -) specifications

c Requirement

Maximum circuit resistance

for NA/EU applications

Total circuit resistance from Battery (+) to pin 10 of the SCR

sensor table connector and from pin 9 of the SCR sensor table

connector back to Battery (-) MUST be equal or less than

185mΩ for 12V applications.

Note: The temperature associated with the above harness wiring resistance constraints shall be 20°C. It is recommended that the OEM design the wiring taking into account temperature increases due to hot ambient conditions or dissipated heat from other components mounting in the system.


6. SCR End-of-Line (EOL) Test

Note: End-of-line test can only be used for Production Level Aftertreatment System. The purpose of the SCR End-of-Line (EOL) test is to ensure the SCR components have been correctly installed in the vehicle. The test covers J1939 communications, sensor connectivity and Diesel Exhaust Fluid (DEF) doser functionality. This built-in test mode has been implemented in the ACM software and is initiated at first keyswitch ON and engine start.

6.1 Pre EOL Test Conditions

The quantity of Diesel Exhaust Fluid (DEF) in the vehicle DEF tank must be at least above the initial DEF low level warning. It is recommended to fill the tank just above the initial DEF low level warning as DEF degrades over time and vehicle lead time from build to sale must be considered.

Engine must be installed and ready to run.

Vehicle Batteries must be installed and connected.

Entire Aftertreatment System must be connected properly including DEF tank, Supply Module, Dosing Module, DEF Supply line, DEF Throttle line, DEF Pressure line, Coolant lines and electrical connections.

Vehicle is stationary/stopped (0 mph Vehicle speed and 0 rpm Engine speed).

6.2 EOL Test Procedure

1. Turn the keyswitch On. System will check electrical connectivity. Wait until keyswitch ON bulb check goes off and there is no fault.

2. Start the Engine. At this time, DEF lamp should start “Blinking” indicating the functional test is in process. Note: When all conditions have been met, the functional test will restart at each engine start and continue until it has successfully completed. Once the functional test has successfully completed the test will no longer run. An OEM service tool will need to be used to initiate subsequent SCR functional tests (heater test or Urea bucket test).

3. Wait until DEF lamp goes solid ON (test successfully completed). Note: This could take up to 2 minutes depending on the length of DEF lines installed. At the completion of the functional test if a fault or error in the system is encountered, then DEF lamp will continue to blink and/or turn off.

4. Turn the keyswitch OFF. This causes the system to purge DEF from the lines back into the DEF tank.

5. Wait for 30 seconds then turn the keyswitch ON. 6. Wait until keyswitch ON bulb check goes off and there is no fault. 7. Visually inspect the Supply, Throttle, Pressure DEF lines and Coolant lines for any leakage. If any

leak is found, keyswitch OFF the system.

6.3 EOL Pass Criteria

1. No Fault light/indications 2. DEF lamp is “BLINKING” during functional test and goes to solid ON. 3. No leaks in the DEF lines (Supply, Throttle and Pressure) or Coolant lines.


7. DPF End-of-Line (EOL) Test Procedure

To allow for a quick verification that the Regeneration Initiate (Start) Switch, Inhibit (Permit) Switch, DPF Lamp and HEST Lamp have been installed and are functioning correctly, a built-in test mode has been implemented in the ACM software. The test does not require an OEM service tool to be connected and functions as follows: 1. When the Vehicle is stopped (0 mph Vehicle Speed and 0 rpm Engine Speed), the Ignition switch is

ON and the engine has run less than 6 hours, the End of Line test mode will be available. 2. To exercise the test, press the DPF Regeneration Force switch. If the ACM correctly identifies the switch

input as the DPF Regeneration Force switch, simultaneously the DPF Lamp will turn ON for 4 seconds and the HEST Lamp will turn ON for 2 seconds.

3. Next, press the Regen Inhibit (Permit) switch. If the ACM correctly identifies the switch input as the

Regen Inhibit (Permit) switch, simultaneously the DPF Lamp will turn ON for 2 seconds and the HEST Lamp will turn ON for 4 seconds.

4. Error Indication - If both the Regen Initiate and Inhibit switches are active (pressed) at the same time

the DPF and HEST Lamp will both flash as long as both switch states are active.


Appendix A: Electrical Schematic of CM2220-F / CM2220-H Aftertreatment System

Figure 4 – Electrical Schematic of CM2220-F / CM2220-H Aftertreatment System


Appendix B: Electrical Schematic for Sensors with Delegated Assembly

Figure 5 – Electrical Schematic for Sensors with Delegated Assembly


Appendix C: Aftertreatment System OEM Connectors

Connector Manufacturer Part Number # of pins

plating wire gauge

(AWG)

DEF Dosing Injector Valve

Bosch Kompakt

Body: 1 928 403 874 (w/shroud) 1 928 404 072 (w/o shroud) Terminals: 1 928 498 058 Seals: 1 928 300 599

2 silver 20

DEF Supply Module

Tyco Amp Body: 1-1703639-1 Code A (12V) Terminals: 1241381-3 Or Equivalent Seals: 964972-1 Cavity Plug: 963531-1

12 silver 20

DPF Assembly Jumper

Deutsch DTM06-08SA-EE04 Key: A Wedge: WM-8S Terminal: 1062-20-0244 (.051”-.085” insulation) 1062-20-0144 (.075”- .125” insulation) Cavity Plug: N/A

8 gold 16 - 20

SCR Assembly Jumper

Deutsch DTM06-12SD-EE04 Key: D Wedge: WM-12S Terminal: 1062-20-0244 (.051”-.085” insulation) 1062-20-0144 (.075”- .125” insulation) Cavity Plug: 0413-204-2005

12 gold 16 - 20

ACM CM2220-F Delphi Body: 15494596 Cover: 15494586 Lock: 15494573 PLR: 15494575 Terminal, Cavities 7-58: 13627887, 13627884

58 silver 16-20

ACM CM2220-F Delphi Body: 15494598 Cover: 15494614 Lock: 15494608 Terminal: 13627887, 13627884

96 silver 18 - 20


Appendix D: OEM Connectors Supplier Contact

Manufacturer Supplier Contact

Bosch Kompakt

Chief Enterprises http://www.chiefent.com/ tel: 800-831-7294

Tyco Amp Tyco Electronics http://catalog.tycoelectronics.com tel: 800-522-6752

Deutsch LADD Corporate Facility 4849 Hempstead Station Drive Kettering, Ohio 45429 tel: 1-800-223-1236 tel: 937-438-2646 fax: 937-438-9755 Email: [email protected] Website: http://www.laddinc.com

Molex Power & Signal Group World Headquarters 6675 Parkland Blvd Solon, OH 44139 USA Phone: 1-800-722-5273 440-836-6600 Fax: 440-836-6122 E-mail: [email protected] [email protected] Website: http://www.powerandsignal.com/

Note: CES does not endorse any one supplier of the components shown above. These are provided as examples only.


Reference Tables

Table 10 – DEF Dosing System Electrical Specifications

Item / Description Specification

ACM Voltage Range (V) 12 V: 9-16 V

Maximum Continuous Current Draw of SM and DM during defrost and maintenance mode

DM : 2 A SM operation: 4 A SM heating: 10 A

Maximum Continuous Current Draw of DEF lines during defrost and maintenance mode

Pressure line: 5A Suction line: 3.5 A Backflow line: 3.5 A Coolant Valve: 2 A* *Valve does not run continuously

Required power per meter for DEF Line ID of 5.5-6 mm (W / m) [Press Line = 3m, Supply and Return Line = 2m]

17.5-18.5 W / m

Required power per meter for DEF line ID of 3-3.5 mm (W / m) [Press Line = 3.5m, Supply and Return Line = 2m]

14.5-15.5 W / m

Maximum Continuous Current Draw of SM during purging cycle (pump and reverting valve active) – SM (A)

SM: 7 A

Maximum Continuous Current Draw of ACM after key-off (purging cycle complete)

<300 µA

Minimum Current rating DEF Line Heater Relay 5A (Pressure Line), 3.5 A (Suction

Line), 3A (Return Line)

Maximum continuous DEF Line Heater Relay source current

1.5 A

Maximum Continuous Current Draw with heating – ACM, SM, DM, DEF lines, and Coolant Valve (A)

29.75 A

Table 11 - NOx Sensor Electrical Specifications

Supply voltage

Minimum supply voltage 9 V

Minimum supply voltage (Sensor Heater) 11 V

Standard supply voltage 13.5 V

Maximum supply voltage (Sensor Heater) 16 V

Supply current

Normal Supply Current <2.1 A

Peak Supply Current (at switch on) 16 A

Maximum in-rush duration < 8 µ sec

Maximum supply power 20 W

Note: The NOx sensor is protected against reverse battery voltage on supply pins 1 and 4


Table 12 – NH3 Sensor Electrical Specifications

Supply voltage


Minimum supply voltage (Sensor Heater) 10.5 V


Maximum supply voltage (Sensor Heater) 16 V

Supply current

Normal Supply Current <2A

Peak Supply Current (at switch on) 9 A

Maximum in-rush current duration 5 ms


Table 13 – In-Tank DEF Quality Sensor Electrical Specifications

Supply voltage



Supply current

Normal Supply Current <120 mA

Peak Supply Current (at switch on) 200 mA


Note: Voltage and current specs are here for information purposes only. The Quality sensor is an OEM supplied part. For more information, please contact CES Application Engineering for details.

Table 14 – Temperature Sensor Electrical Specifications

Supply voltage



Maximum supply voltage 16 V

Supply current

Normal Supply Current <25 mA

Maximum supply power 0.3 W

Table 15 – DPF Dual Delta Pressure and Gage Sensor

Supply voltage

Minimum supply voltage 4.75 V


Maximum supply voltage 5.25 V

Table 16 – PM Sensor Electrical Specifications

Supply voltage


Minimum supply voltage (Sensor Heater) 10.7 V


Maximum supply voltage 16 V

Maximum Peak supply voltage from alternator (Vs*)* 35V


Supply current

Normal Supply Current 0.05 A

Inrush Current Peak <15 A

Inrush current time 100 ms

Peak current <5A

* The centralized load dump suppression must meet the test requirements identified for Test B in ISO16750-2 and for Test Pulse 5B from SAE J1113-11. Requirement background In order to properly protect the vehicle electronics system the alternator charging system must have a protection feature to limit the maximum voltage that can be introduced back into the vehicle. In order to limit the charging system voltage the charging system on the vehicle must include a centralized load dump suppression feature. This centralized load dump suppression feature is typically included as part of the purchased alternator assembly.

Table 17 – Maximum / Minimum Operating Temperatures

NOx Sensor Minimum

(ºC) Maximum

(ºC)

Ambient temperature of NOx sensor ECU

-40 125

Storage temperature w/o powering -55 140

Sensor ECU and connector temperature -40 125

Wire temperature -40 200

Exhaust gas temperature (sensor) - 800

NH3 Sensor Minimum

(ºC) Maximum

(ºC)

Ambient temperature of NH3 sensor ECU -40 125


Sensor connector temperature -40 125

Wire temperature -40 200

Exhaust gas temperature (sensor) - 750

In-Tank DEF Quality Sensor Minimum

(ºC) Maximum

(ºC)

Ambient temperature of Sensor -40 125


DPF / SCR EGTS (Temperature Thermocouples)

Minimum (ºC)

Maximum (ºC)

Thermocouples connector temp. -40 140

Temperature Module temp. - 140

Thermocouples wire temp - 240

Delta pressure sensor module - 140

PM Sensor Minimum

(ºC) Maximum

(ºC)

Sensor Connector Temperature -40 140

Wire cover Temperature -40 200


Revision History

Date Author Description Page(s)

11/10/15 Ragibul Huq

-Changed Author to Ragibul Huq -Changed numbering of pages for the document. -Changed table numbers -Changed PM sensor temperatures in the description section and in table 14 -Changed Figure 1 for PM sensor and NH3 sensor “if applicable” comment -Added Table 9 PM sensor power (Battery +) and return (Battery -) specifications related with wiring harness resistance -Changed Table 11 NOx sensor electrical specification based on the current updates -updated the wiring diagram with new PM sensor information - Added note to Table 15 “Note: Voltage and current specs are there for information purposes only. The Quality sensor is an OEM supplied part. For more information, please contact CES Application Engineering for details” -Added “when applicable” comment for NH3 sensor in the wiring schematic and in the writing section - Added operating voltage -Added PM sensor Load dump requirement from ISO and SAE standard and background for this requirement

1 Throughout Throughout 9, 31 10 21 28 24-25 29 19

28 29

9/15/2014 HannahJoy Pheasant

Changed author to Xin Jin

Updated purge time requirement from 70 seconds to 100 seconds

Pg. 1 Pg. 11

2/11/2013 L.S. Huff Added PM Sensor.

Added MD to engine models.

Replaced Figure 4 schematic with version 6.0

Added PM Sensor to Figure 5 and changed fusing requirement.

Added PM Sensor to Table 1 under CES supplied components.

Added terminal p/n 1062-20-0144 to Appendix C.

Changed ACM references from CM2220-F to CM2220

3, 9,10,21,24,25,30, 31

1

24

25

11

27

3,6,24

11/21/2012 L. S. Huff Added ACM to Table 1 under CES supplied components. 11

11/13/2012 L. S. Huff For Ambient Air Temperature Sensor, removed reference to “Temperature vs. Resistance” table.

Changed Ambient Air Sensor references to being read by the ECM and communicated to the ACM.

Removed electrical specs. from Ambient Air Temperature Sensor table.

Replaced Figure 5 system schematic with rev. 6-3.

9 20

20 25

11/08/2012 L. S. Huff Added updated system block diagram.

Removed Ambient Air Temperature Sensor “Temperature vs. Resistance” table.

Changed references to “INSITE” to “OEM Service Tool”

Added proper Delphi p/n’s for ACM connectors.

10

21

22, 23

26

10/31/2012 L. S. Huff Removed “New Draft” reference.

Removed all references to PM Sensor

Added DPF Dual Delta Pressure and Gage Sensor.

Added Delta Pressure Sensor specs.

1 Throughout 19, 20 29

10/22/2012 L. S. Huff Replaced Figure 4 system schematic with rev. 4-3. Added 5A fuse to keyswitch circuit. Added diodes to line heater circuits. Removed PM sensor. Changed thermistor references to thermocouple. Added terminal numbers to HC Dosing Valve. Added Line Heater Relay options. Added DEF Level and Temperature options. Added CAN terminating resistor value.

24


10/16/2012 L. S. Huff Created document patterned after “2013 US EPA Aftertreatment Controls Interface Requirements”

Added “Diode Protected” to relay specifications.

Changed Minimum Contact Rating on DEF Line Heater Relay to include the three relay options.

Added Tank Level and Temperature sensors to section 5, “Aftertreatment Sensors”.

For EGTS, changed thermistor references to thermocouples.

Replaced Figure 5 system schematic with rev. 6-2. Removed PM sensor. Changed thermistor references to thermocouple.

All 12 12 19 19 25