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S .
Chery S11 Engine Management System
Trouble shooting
with Diagnostic Trouble Code
2004-01-09
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S SS MH Lee / Trouble shooting with DTC Page:2
TPS trouble shooting with DTC
( )
012 / S
0122 / S
ECU
S, , S .
RC
R
R
TPS
VCC
Signal
GND
VCC
To uP
SCG
VB
SCB
Sensor Input DTCThrottle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuatorMIL circuit
A/C relay/switch circuit
Cooling fan relay
Closed Throttle valve
Wide open Throttle valve
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Cam position sensor trouble shooting with DTC
( )
00
ECU
RHole Elememt
R
C
R
Signal
GND
VCC
To uP
V_RLY
TR
ACTIVE CAM POSITION SENSOR
1) S, , S .
2) 1
.
Sensor Input DTCThrottle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuatorMIL circuit
A/C relay/switch circuit
Cooling fan relay
*
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S SS MH Lee / Trouble shooting with DTC Page:4
Crank position sensor trouble shooting with DTC
( )
0
ECU
1) S, , S .
2)
.
R
Hole Elememt #1
Hole Elememt #2
RC
R
Signal
GND
VCC
To uP
V_RLY
TR
ACTIVE CRANK POSITION SENSOR
Sensor Input DTCThrottle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuatorMIL circuit
A/C relay/switch circuit
Cooling fan relay
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Vehicle speed sensor trouble shooting with DTC
( )
001 /
.* & & .
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuatorMIL circuit
A/C relay/switch circuit
Cooling fan relay
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TMAP sensor trouble shooting with DTC
( )0112 S
011 S,
010 S
010 S
1) S, , S .
2) .
ECU
R
CGND
R
CTo uP
RC
R
ATS
MAPTo uP
MAP Signal
ATS Signal
VCC
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuatorMIL circuit
A/C relay/switch circuit
Cooling fan relay
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S SS MH Lee / Trouble shooting with DTC Page:7
( )011 - S
011 S
Coolant temperature sensor trouble shooting with DTC
S, , S .
ECU
R
C
R
Signal
GND
VCC
To uP
CTS
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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S SS MH Lee / Trouble shooting with DTC Page:8
C
R RKnock
Managament
IC
To uPR
KNOCK SENSOR
Knock sensor trouble shooting with DTC
( )02 1
S, , S .
ECU
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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O2 sensor trouble shooting with DTC
( )010 2 - 012 2 - S
011 2 - S
ECU
1) ( 0)
2
2) S S .
R
C
R
Signal
GND
VCC
To uP
VCC
VLS
R CR
R
+
-ZrO2
TR
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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AC evaporator temp. sensor trouble shooting with DTC
( )1 S
1 - S
S, , S .
ECU
R
C
R
Signal
GND
VCC
To uP
EVAP. SENSOR
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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System voltage trouble shooting with DTC
( )00 S
-
- .
* .
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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S SS MH Lee / Trouble shooting with DTC Page:12
O2 sensor heater trouble shooting with DTC
( )001 2 - S
002 2 - S
S, , S .
OXYGEN SENSOR
Heater
V_RLY
TR
PWM
To uP
ECU
SCB
SCG
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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S SS MH Lee / Trouble shooting with DTC Page:13
TR
To uP
V_RLY
FUEL PUMP
RELAY
ON/OFF
Fuel pump circuit trouble shooting with DTC
( )020 - S S
S, , S .
ECU
SCB
SCG
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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S SS MH Lee / Trouble shooting with DTC Page:14
Injector circuit trouble shooting with DTC
S, , S .
ECU
( )021 1 - S 022 1 - S
02 2 - S 02 2 - S
02 - S 02 - S
TRTo uP
V_RLY
INJECTOR
PWM
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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IG coil circuit trouble shooting with DTC
S .
ECU
( )01 ''
02 ''
0 ''
TRTo uP
R
V_RLY
IGNITION COIL #1 Spark duration
Measuring point
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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S SS MH Lee / Trouble shooting with DTC Page:16
TR
To uP
V_RLY
CANISTER
PURGE
SOLENOID
VALVE
PWM
Purge control valve circuit trouble shooting with DTC
S, , S .
ECU
( )0 , -
0 , - S S
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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4
3
2
1
B+
B+
Q6 Q8
Q5 Q7
Q4Q2
Q1 Q3
Idle speed actuator circuit trouble shooting with DTC
S, , S, S .
ECU
( )00 - S S S
SCB
SCG
SCL
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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Malfunction indicate lamp trouble shooting with DTC
S, , S .
00 () -
ECU
TR
To uP
V_RLY
MALFUNCTION
INDICATING
LAMP
ON/OFF
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay
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Cooling fan & A/C fan relay trouble shooting with DTC
S, , S .
( )12 -
12 / -
ECU
TR
To uP
V_RLY
COOLING FAN
RELAYS
ON/OFF
Sensor Input DTC
Throttle position sensor
Cam position sensor
Crank position sensor
Vehicle speed sensor
TMAP sensor
Coolant temp. sensor
Knock sensor
O2 sensor
AC evap. temp. sensor
System voltage problem
Actuator output DTC
O2 sensor heater circuit
Fuel pump circuit
Injector circuit
IG coil circuit
Purge control valve circuit
Idle speed actuator
MIL circuit
A/C relay/switch circuit
Cooling fan relay