2009 CHERY TIGGO immobilizer

Downloaded from www.Manualslib.com manuals search engine 6.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0118 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–100Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.CHECK THE THROTTLE POSITION SENSOR (TPS) POWER SUPPLY CIRCUIT
• Turn ignition switch on.
• Check supply voltage between the TPS terminal 3
and ground in the sensor electrical connector
E-027.
• 5 V should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair circuit for an open or short to
ground in harness or connectors.
If harness is normal, replace the ECM.
NOTE : The Immobilizer control module
must be matched to the new ECM (See ECM Removal & Installation in Section 03 Electronic
Engine Controls).
4.CHECK TPS SIGNAL CIRCUIT FOR AN OPEN OR SHORT
• Turn ignition switch off.
• Disconnect ECM harness connector.
• Check harness continuity between following terminals.
TPS SENSOR CONNECTOR TERMINAL ECM CONNECTOR TERMINAL
33 2
• Continuity should exist.
• Check TPS signal circuit
• Check harness for a short to power.
Is the check result normal?
Ye s>>Go to step 6.
No
>>Go to the next step.
5.DETECT MALFUNCTIONING PART
• Check harness for an open or short to ground between TPS connector terminal 2 and ECM connector E-001,
terminal 78.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair or replace harness or connectors.
DIAGNOSIS & TESTING
LTSMD030035
03–104Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 8.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0122 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–106Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 3.CHECK THE THROTTLE POSITION SENSOR (TPS) POWER SUPPLY CIRCUIT
• Turn ignition switch on.
• Check supply voltage between TPS terminal 3 and
ground in the TPS electrical connector E-027.
• 5 V should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair short to power in harness or con-
nectors.
If circuit is normal, replace the ECM.
NOTE : The Immobilizer control module
must be matched to the new ECM
(See ECM Removal & Installation in Section 03 Electronic Engine Controls).
4.CHECK THE TPS SIGNAL CIRCUIT FOR A SHORT
• Turn ignition switch off.
• Disconnect ECM harness connector.
• Check harness for short to power.
Is the check result normal?
Ye s>>Go to step 6.
No
>>Go to the next step.
5.CHECK THE TPS GROUND CIRCUIT FOR AN OPEN AND SHORT
• Check harness continuity between following terminals.
TPS CONNECTOR
TERMINAL ECM CONNECTOR
TERMINAL
27 8
• Continuity should exist.
• Check the TPS ground circuit for an open.
• Check harness for a short to power.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Repair circuit for an open or short to power in harness or connectors.
DIAGNOSIS & TESTING
LTSMD030035
03–11 0Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 6.CHECK TPS
• Check resistance between TPS terminal 2 and 3.
• 2k ± 20 % (20°C) should exist.
• Turn ignition switch off.
• Connect ECM connector.
• Connect TPS connector.
• Turn ignition switch on.
• Check voltage between TPS terminal 3 and ground under the following conditions:
ECM TERMINAL
NO. ITEM
CONDITION DATA (DC
VOLTAGE)
32 Regulated sensor
supply
Ignition switch: ON -
Approximately 5 V
38 Electronic throttle
control actuator
(Position sensor) •
Engine stopped
• Accelerator pedal:
Fully released 4.24 V
• Engine stopped
• Accelerator pedal:
Fully depressed 0.72 V
54 Electronic throttle
control actuator •
Engine stopped
• Accelerator pedal:
Fully released 0.74 V
• Engine stopped
• Accelerator pedal:
Fully depressed 4.62 V
78 Sensor (GND)
-Approximately 0 V
64 Motor 4
12Vor0V
65 Motor 3
66 Motor 2
12Vor0V
67 Motor 1
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the TPS.
7.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0123 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03
03–111Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 6.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• See DTC Confirmation Procedure.
Is DTC P0132 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03
03–11 7Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 14.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• See DTC Confirmation Procedure.
Is DTC P0171 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03–130Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 13.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0172 still present?
Ye s>>Replace the ECM.
NOTE : The Immobilizer control module must be matched to the new ECM (See ECM Removal & Instal-
lation in Section 03 Electronic Engine Controls).
No
>>The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
DIAGNOSIS & TESTING
03
03–141Chery Automobile Co., Ltd.