High Beam On with Headlamp Switch Off DeVille
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Headlight System Check performed? | -- | Go to Step 2 | Go to Headlight System Check |
2 | Remove the high/low beam headlamp relay from the underhood relay center. Do the high beams turn off? | -- | Go to Step 3 | Go to Step 7 |
3 |
Do the high beams turn off? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the body control module (PZM). Refer to Body Control Module Replacement in Body Control Systems. Is the body control module replacement complete? | -- | Go to Headlight System Check | -- |
5 | Inspect CKT 1969 (BLK/WHT) for a short to ground. Refer to Testing for Short to Ground in Wiring Systems. Is CKT 1969 OK? | -- | Go to Step 6 | Go to Step 8 |
6 | Replace the high/low beam headlamp relay. Is the high/low beam headlamp relay replacement complete? | -- | Go to Headlight System Check | -- |
7 | Repair the short to voltage in CKT 11 (LT GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
8 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
High Beam On with Headlamp Switch Off Eldorado
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Headlight System Check performed? | -- | Go to Step 2 | Go to Headlight System Check |
2 | Remove the high/low beam headlamp relay from the underhood relay center. Do the high beams turn off? | -- | Go to Step 3 | Go to Step 7 |
3 |
Do the high beams turn off? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the body control module (PZM). Refer to Body Control Module Replacement in Body Control Systems. Is the body control module replacement complete? | -- | Go to Headlight System Check | -- |
5 | Inspect CKT 1969 (BLK/WHT) for a short to ground. Refer to Testing for Short to Ground in Wiring Systems. Is CKT 1969 OK? | -- | Go to Step 6 | Go to Step 10 |
6 | Replace the high/low beam headlamp relay. Is the high/low beam headlamp relay replacement complete? | -- | Go to Headlight System Check | -- |
7 | Remove the DRL relay from the underhood relay center. Do the high beams turn off? | -- | Go to Step 8 | Go to Step 9 |
8 | Replace the DRL relay. Is the DRL relay replacement complete? | -- | Go to Headlight System Check | -- |
9 | Repair the short to voltage in CKT 11 (LT GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
10 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
