• Check resistance between the following O
2
sensor terminals, component side:
CHECK O
2
SENSOR RESISTANCE
TERMINAL NO. RESISTANCE
1 & 3 and 1 & 4
` V (Continuity
should not exist)
4 & 1 and 4 & 2
Is the check result normal?
Yes
>> Go to the next step.
No
>> Replace the O
2
sensor.
7.
CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to 9DTC Confirmation Procedure9.
Is DTC P0031 or P0032 still present?
Yes
>> 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
03–46
Chery Automobile Co., Ltd.
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