Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Lighting System Diagnostic System Check? | -- | Go to Step 2 | |
2 | Disconnect the body control module (PZM) connector C2. Do the backup lamps turn off? | -- | Go to Step 6 | Go to Step 3 |
3 | Remove the reverse relay from the rear compartment relay center 4. Do the backup lamps turn off? | -- | Go to Step 4 | Go to Step 7 |
4 | Inspect CKT 646 (DK GRN) for a short to ground. Refer to Testing for Short to Ground in Wiring Systems. Is CKT 646 OK? | -- | Go to Step 5 | Go to Step 8 |
5 | Replace the reverse relay. Is the repair complete? | -- | Go to Step 9 | -- |
6 | Replace the body control module (PZM). Refer to Body Control Module Replacement in Body Control Systems. Is the repair complete? | -- | Go to Step 9 | -- |
7 | Repair the short to battery positive voltage (B+) in CKT 24 (LT GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | -- |
8 | Repair the short to ground in CKT 646 (DK GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | 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 |
