2009 CHERY TIGGO immobilizer

Downloaded from www.Manualslib.com manuals search engine 9.DETECT MALFUNCTIONING PART
• Turn ignition switch off.
• Disconnect ECM harness connector (1).
• Check for harness continuity between the following terminals.
• Continuity should not exist.
INJECTOR NO. INJECTOR
TERMINAL GROUND
12
Ground
22
32
42
Is the check result normal?
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
>>Repair circuit for a short in harness or connectors.
DIAGNOSIS & TESTING
LTSMD030077
03–364Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 10.CHECK INJECTOR RESISTANCE
• Check resistance as table shown.
• Check the fuel injector resistance as shown in the following:
INJECTOR
NO. INJECTOR
TERMINAL RESISTANCE
(APPROXIMATELY) (20°C)
11&2
11-16
21&2
31&2
41&2
• Connect ECM connector.
• Connect injector connector.
• Check the fuel injector voltage as shown in the following:
TERMINAL NO. ITEMCONDITIONDATA (AVERAGE DC
VOLTAGE)
6 Injector 2
•Engine is running
• Warm-up condition
• Idle
• Accelerate suddenly Voltage: 11 - 14 V
7
Injector 3
27 Injector 1
47 Injector 4
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace injector.
11 .CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• See DTC Confirmation Procedure.
Is DTC P0261, P0264, P0267 or P0270 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
03–365Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine Is the check result normal?
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
>>Repair circuit for a short in harness or connectors.
10.CHECK INJECTOR RESISTANCE
• Check resistance as table shown.
• Check the fuel injector resistance as shown in the following:
INJECTOR
NO. INJECTOR
TERMINAL RESISTANCE
(APPROXIMATELY) 
(20°C)
11&2
11-16
21&2
31&2
41&2
• Connect ECM connector.
• Connect injector connector.
• Check the fuel injector voltage as shown in the following:
TERMINAL NO. ITEMCONDITIONDATA (AVERAGE DC
VOLTAGE)
6 Injector 2
•Engine is running
• Warm-up condition
• Idle
• Accelerate suddenly Voltage: 11 V - 14 V
7
Injector 3
27 Injector 1
47 Injector 4
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace injector.
DIAGNOSIS & TESTING
03
03–371Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 11 .CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• See DTC Confirmation Procedure.
Is DTC P0262, P0265, P0268 or P0271 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
03–372Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 2.CHECK CKP SENSOR ELECTRICAL CONNECTOR
• Turn ignition switch off.
• Disconnect the CKP sensor (1) electrical connector.
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Ye s>>Go to the next step.
No
>>Repair or replace the electrical connector
as necessary.
3.CHECK CKP SENSOR REFERENCE VOLTAGE
• Turn ignition switch on.
• Check CKP sensor supply voltage between sensor
connector E-006, terminal 1 and ground, terminal 2
and ground in the sensor electrical connector.
• 3 V should exist.
Is the check result normal?
Ye s>>Go to step 5.
No
>>Go to the next step.
4.DETECT MALFUNCTIONING PART
• Check the following:
Harness for an open or short between CKP sensor and ECM.
Is the check result normal?
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
>>Repair circuit for an open or short in harness or connectors.
DIAGNOSIS & TESTING
BESM040006
LTSMD030048
03
03–375Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 7.CHECK INSTALLED CLEARANCE
• Check the installed clearance (See CKP sensor Removal & Installation in Section 08 Transaxle & Transfer
Case).
• 0.8 - 1.2 mm should exist.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Reinstall CKP sensor.
8.CHECK GEAR TOOTH
• Visually check for chipping signal plate gear tooth.
Is the check result normal?
Ye s>>Go to the next step.
No
>>Replace the signal plate
9.CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0321 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
03–377Chery Automobile Co., Ltd.

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 P0324 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
03–382Chery Automobile Co., Ltd.

Downloaded from www.Manualslib.com manuals search engine 10.CHECK CAMSHAFT
• Check the following:
Accumulation of debris to the signal plate of camshaft rear end
Chipping signal plate of camshaft rear end
Is the check result normal?
Ye s>>Go to the next step.
No
>>Remove debris and clean the signal plate of camshaft rear end or replace camshaft.
11 .CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure.
Is DTC P0343 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
03–388Chery Automobile Co., Ltd.