3.
PROGRAM ECM
• With X-431 scan tool, program the ECM before replacing the ECM. and view the DTC with X-431.
• With X-431 scan tool view the DTCs
Is DTC P0602 still present?
Yes
>>
Go to the next step.
Refer to any Technical Bulletins that have been issued.
No
>>
The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
4.
CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to 9DTC Confirmation Procedure9.
Is the check result normal?
Yes
>>
The system is now operating properly.
Reassemble the vehicle and road test to verify the customers complaint is repaired.
No
>> 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).
DIAGNOSIS & TESTING
03–148
Chery Automobile Co., Ltd.
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