Chery Tiggo 2009 Service Manual page 1708

5.
CHECK IMMOBILIZER CONTROL MODULE AND ECM COMMUNICATION CIRCUIT
• For DTC B3042, check the resistance of W-Line between the Immobilizer control module connector C-025, pin
8 and ground.
IMMOBILIZER
CONTROL
TERMINAL
MODULE
TERMINAL
8
• For DTC B3043, turn ignition switch on, check voltage between the Immobilizer control module connector
C-025, pin 8 and ground.
IMMOBILIZER
CONTROL
TERMINAL
MODULE
TERMINAL
8
Is the check result normal?
Yes >>
Go to the next step.
No >>
Repair the circuits fault as necessary.
6.
REPLACE AND PROGRAM THE IMMOBILIZER CONTROL MODULE
• Replace and program the Immobilizer control module with the X-431.
• Reconnect all disconnected electrical harness connectors.
• With the X-431 scan tool, view the DTCs in the Immobilizer control module.
Is DTC B3042 or B3043 present again?
Yes >>
Go to the next step.
No >>
The system is now operating properly.
The DTC was caused by Immobilizer control module.
124
15–
DIAGNOSIS & TESTING
RESULT
Continuity
Ground
should not exist
RESULT
12 V should not
Ground
exist
Chery Automobile Co., Ltd.