Chery Tiggo 2009 Service Manual page 706

Diagnostic Procedure
1.
CHECK GROUND CONNECTIONS
• Turn ignition switch off.
• Loosen and retighten ground screws on the body (See Ground Inspection in Section 03 Electronic Engine Con-
trols).
• Inspect ground connections E-207 and E-208 mounting position (See Vehicle Wiring Harness Layout - Engine
Room Harness (With 2.0L Engine) in Section 16 Wiring).
Are the ground connections OK?
Yes >>
Go to the next step.
No >>
Repair or replace ground harness or connections.
2.
CHECK DTC
• Turn ignition switch on.
• With the scan tool, select view ECM CAN DTC and data stream.
Is DTC U0001 present?
Yes >>
Go to the next step.
No >>
The conditions that caused this code to set are not present at this time. See Diagnostic Help in Sec-
tion 03 Electronic Engine Controls.
Erase all codes and test drive the vehicle to verify the repair is complete.
3.
CHECK THE OTHER MODULES CAN DTC
• With the scan tool X-431, enter all the other CAN communication modules such as TCM, CAN converter mod-
ule.
• Read the CAN DTC.
Were other modules CAN DTCs found?
Yes >>
If all of the other modules have the same DTC CAN Communication , go to the next step.
If all of the other modules have the DTC Lost communication with ECM , and do not have the CAN
Communication , Replace and program the ECM module.
No >>
Go to step 8.
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DIAGNOSIS & TESTING
Chery Automobile Co., Ltd.