Chery Tiggo 2009 Service Manual page 587

2.
CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR ELECTRICAL CONNECTOR
• Disconnect the ECT sensor electrical connector (1).
• Inspect the electrical connector for damage.
Is the electrical connector OK?
Yes >>
Go to the next step.
No >>
Repair or replace the electrical connector
as necessary.
3.
CHECK ENGINE COOLANT TEMPERATURE (ECT) SENSOR SIGNAL CIRCUIT FOR A SHORT
• Turn ignition switch on.
• Check reference voltage between ECT sensor ter-
minal 2 and ground in the sensor electrical connec-
tor E-019.
• 4.5 - 4.9 V should exist.
Is the check result normal?
Yes >>
Go to step 5.
No >>
Go to the next step.
4.
DETECT MALFUNCTIONING PART
• Turn ignition switch off.
• Disconnect ECM harness connector.
• Check harness for a short to ground between ECT sensor connector terminal 2 and ECM connector E-001, ter-
minal 39.
Is the check result normal?
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 >>
Repair or replace circuit for a short in harness or connectors.
Chery Automobile Co., Ltd.
DIAGNOSIS & TESTING
03
BESM030019
LTSMD030032
303
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