Chery A1 2009 Service Manual page 181

• Connect ECT sensor electrical connector.
• Connect the ECM electrical connector.
• Turn ignition switch on.
• Check sensor output signal.
ECT TERMINAL
NO.
17
39
Is the check result normal?
Yes >>
Go to the next step.
No >>
Replace ECT sensor.
6.
CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure .
Is DTC P0118 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.
74
03–
DIAGNOSIS & TESTING
ECT SENSOR OUTPUT SIGNAL REFERENCE DATA
ITEM
Sensor (GND)
Ignition switch: ON
ECT sensor
CONDITION
-
ECT: 59°C
ECT: 78°C
ECT: 90°C
Chery Automobile Co., Ltd.
DATA
(DC VOLTAGE)
Approximately 0 V
1.89 V
1.25 V
0.94 V