Inspection and Verification

1. Verify the customer concern by operating the autolamps following these steps:
1. Place the ignition switch in the ON position.
2. Place the headlamp switch in the ON position.
3. Verify the low beam operation.

NOTE: For headlamp concerns, refer to Headlamps. Headlamp

4. Place the headlamps in the autolamp position.
5. Verify the autolamp operation by aiming a light at the light sensor amplifier and removing the light source and covering the light sensor amplifier. The headlamps should turn OFF with the light and illuminate with the light sensor amplifier covered.

NOTE: When aiming light and covering the light sensor amplifier, there may be a one minute delay for the autolamps to change conditions.

2. Visually inspect for obvious signs of mechanical and electrical damage.







VISUAL INSPECTION CHART

3. If the concern remains after the inspection, connect the New Generation STAR (NGS) Tester to the data link connector located beneath the instrument panel and select the vehicle to be tested from the NGS Tester menu. If the NGS Tester 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.

4. If the NGS Tester still does not communicate with the vehicle, refer to the NGS Tester manual.
5. Carry out the DATA LINK DIAGNOSTIC TEST. If the NGS Tester responds with:
^ CKT 914, CKT 915 or CKT 70 = ALL ECUS NO RESP/NOT EQUIP, refer to Module Communications Network (Information Bus).
^ NO RESP/NOT EQUIP for FEM, go to Pinpoint Test A. Test A: No Communication With the Front Electronic Module
^ NO RESP/NOT EQUIP for instrument cluster, go to Pinpoint Test C. Test C: No Communication With the Instrument Cluster
^ SYSTEM PASSED, retrieve and record the continuous Diagnostic Trouble Codes (DTCs), erase the continuous DTCs and carry out self-test diagnostics for the FEM.

6. If the DTCs retrieved are related to the concern,
go to FEM DTC Index, Front Electronic Module Diagnostic Trouble Code Index
REM DTC Index, Rear Electronic Module Diagnostic Trouble Code Index
Instrument Cluster DTC Index, Instrument Cluster Diagnostic Trouble Code (DTC) Index
or SSP Relay Index to continue diagnostics. Component Tests and General Diagnostics
7. If no DTCs related to the concern are retrieved, proceed to Symptom Chart to continue diagnostics. Autolamps