Step | Action | Yes | No |
|---|---|---|---|
Schematic Reference: Exterior Lights Schematics Connector End View Reference: Master Electrical Component List in Wiring Systems | |||
1 | Did you perform the Diagnostic System Check - Vehicle? | Go to Step 2 | Go to Diagnostic System Check - Vehicle in Vehicle DTC Information |
2 |
Do the backup lamps turn on in REVERSE and turn off in PARK? | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Remove the backup lamp relay. Do the backup lamps turn off? | Go to Step 4 | Go to Step 6 |
4 | Connect a test lamp between the control circuit of the backup lamp relay and the coil side supply of the backup lamp relay. Does the test lamp illuminate? | Go to Step 5 | Go to Step 8 |
5 | Test for a short to ground in backup lamp relay control circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems. Did you find and correct the conditions? | Go to Step 9 | -- |
6 | Repair a short to battery positive voltage in the backup lamp supply voltage circuit. Refer to Wiring Repairs in Wiring Systems. Did you complete the repair? | Go to Step 9 | -- |
7 | Replace the body control module (BCM). Refer to Control Module References in Computer/Integrating Systems for replacement, setup and programming. Did you complete the repair? | Go to Step 9 | -- |
8 | Replace the backup lamp relay. Refer to Relay Replacement in Wiring Systems. Did you complete the repair? | Go to Step 9 | -- |
9 | Operate the system in order to verify the repair. Did you correct the condition? | System OK | Go to Step 2 |
