Chery A1 2009 Service Manual page 171

• Continuity should exist.
• Check harness for a short to power.
Is the check result normal?
Yes >>
Go to the next step.
No >>
Repair or replace the circuit for an open or short to power in harness or connectors.
5.
CHECK THE IAT SENSOR
• Connect the IAT sensor electrical connector.
• Connect the ECM electrical connector.
• Turn ignition switch on.
• Check the IAT signal between terminal 2 and ground in MAP sensor connector E-033 harness side, using the
following test conditions:
IAT SENSOR
TERMINAL NO.
2
Is the check result normal?
Yes >>
Go to the next step.
No >>
Replace the MAP/IAT sensor.
6.
CHECK DTC
• With the X-431 scan tool, read ECM DTCs.
• Refer to DTC Confirmation Procedure .
Is DTC P0113 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.
64
03–
DIAGNOSIS & TESTING
IAT SENSOR OUTPUT SIGNAL REFERENCE DATA
ITEM
IAT sensor Ignition switch: ON
CONDITION
IAT: 36°C
Chery Automobile Co., Ltd.
DATA
(DC VOLTAGE)
1.88 V