Initial Inspection - Warning Devices

INSPECTION AND VERIFICATION

NOTE: Upon installation of a new GEM, the module must be reconfigured.

1. The warning lamps are a GEM controlled system; refer to Body Control Systems (Multifunction Electronic Control Module).
2. Verify the customer concern by operating the system in question.

Visual Inspection Chart:

3. Visually inspect for obvious signs of mechanical and electrical damage.
4. If the concern remains after the inspection, connect the diagnostic tool to the data link connector (DLC) located beneath the instrument panel and select the vehicle to be tested from the diagnostic tool menu. If the diagnostic tool does not communicate with the vehicle:
- check that the program card is correctly installed.
- check the connections to the vehicle.
- check the ignition switch position.

5. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
6. Carry out the Data Link Diagnostic Test. If the diagnostic tool responds with:
- CKT914, CKT915 or CKT70 = ALL ECUS NO RESP/NOT EQUIP, refer to Information Bus (Module Communications Network).
- NO RESP/NOT EQUIP for GEM, go to Pinpoint Test A. Test A
- NO RESP/NOT EQUIP for RCM, refer to Air Bag Systems.
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the GEM.

7. If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics. Trouble Code Descriptions - Warning Devices
8. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. Diagnosis By Symptom - Warning Devices
9. If the DTCs retrieved are for the RCM, refer to Air Bag Systems.