Headlamps

INSPECTION AND VERIFICATION

1. Verify the customer concern by operating the headlamps.

Visual Inspection Chart:

2. Visually inspect for obvious signs of mechanical and electrical damage; refer to the chart.
3. If the inspection reveals obvious concern(s) that can be readily identified, repair as necessary.
4. If the cause of the fault is not visually evident, proceed to the diagnostic tool diagnostics.
5. 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.

6. If the diagnostic tool still does not communicate with the vehicle, refer to the diagnostic tool manual.
7. 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 Module Communications Network (Information Bus).
- NO RESP/NOT EQUIP for hybrid electronic cluster (instrument cluster), refer to Instrument Panel, Gauges and Warning Indicators.
- SYSTEM PASSED, retrieve and record the continuous diagnostic trouble codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the instrument cluster.

8. If the DTCs retrieved are related to the concern, go to the GEM Diagnostic Trouble Code (DTC) Index to continue diagnostics. Diagnostic Trouble Code Tests and Associated Procedures
9. If no DTCs related to the concern are retrieved, proceed to the Symptom Chart to continue diagnostics. Headlmaps