Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Headlights System Check performed? | -- | Go to Step 2 | Go to Headlight System Check |
2 |
Is battery voltage measured? | -- | Go to Step 3 | Go to Step 7 |
3 |
Does the headlamp dimmer switch operate properly? | -- | Go to Step 8 | Go to Step 4 |
4 |
Is battery voltage measured? | -- | Go to Step 5 | Go to Step 6 |
5 | Replace the IPC. Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console. Is the IPC replacement complete? | -- | Go to Headlight System Check | -- |
6 | Inspect CKT 524 (PPL) for an open. Refer to Testing for Continuity in Wiring Systems. Is CKT 524 OK? | -- | Go to Step 15 | Go to Step 16 |
7 | Repair the open in CKT 1740 (ORN) between S505 and the headlamp dimmer switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
8 |
Is battery voltage measured? | -- | Go to Step 9 | Go to Step 13 |
9 | Measure the voltage between the high/low beam headlamp relay connector terminal C9 (ORN/BLK) and terminal D7 (BLK/WHT). Is battery voltage measured? | -- | Go to Step 10 | Go to Step 14 |
10 | Connect a fused jumper between the high/low beam headlamp relay connector terminal C9 (ORN/BLK) and terminal C7 (LT GRN). Do the high beams turn on? | -- | Go to Step 11 | Go to Step 12 |
11 | Replace the high/low beam headlamp relay. Is the high/low beam headlamp relay replacement complete? | -- | Go to Headlight System Check | -- |
12 | Repair the open in CKT 11 (LT GRN). Refer to Wiring Repairs in Wiring Systems Is the repair complete? | -- | Go to Headlight System Check | -- |
13 | Repair the open in CKT 40 (ORN/BLK) between S305 and the underhood relay center. Refer to Wiring Repairs in Wiring Systems Is the repair complete? | -- | Go to Headlight System Check | -- |
14 | If the headlamp dimmer switch is operating properly, inspect CKT 1969 (BLK/WHT) for an open. Refer to Testing for Continuity in Wiring Systems Is CKT 1969 OK? | -- | Go to Step 17 | Go to Step 16 |
15 | Replace the headlamp dimmer switch. Refer to Dimmer Switch Assembly - Disassemble - Off Vehicle in Steering Wheel and Column - Tilt Is the headlamp dimmer switch replacement complete? | -- | Go to Headlight System Check | -- |
16 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems Is the repair complete? | -- | Go to Headlight System Check | -- |
17 | Replace the body control module (PZM). Refer to Body Control Module Replacement in Body Control System. Is the body control module replacement complete? | -- | Go to Headlight System Check | -- |
