Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the Headlight System Check Performed? | -- | Go to Step 2 | Go to Headlight System Check |
2 |
Is the twilight delay value near 255 counts? | -- | Go to Step 3 | Go to Step 5 |
3 |
Is the twilight delay value near 0 counts? | -- | Go to Step 4 | Go to Step 5 |
4 |
Is the IPC replacement complete? | -- | Go to Headlight System Check | -- |
5 |
Is the voltage within the specified range? | 4.4-4.8V | Go to Step 6 | Go to Step 8 |
6 | Slide the twilight delay switch to the extreme negative position. Is the voltage within the specified range? | 0.2-0.6V | Go to Step 7 | Go to Step 8 |
7 | Replace the instrument panel cluster (IPC). Refer to Instrument Cluster Replacement in Instrument Panel, Gauges and Console. Is the IPC replacement complete? | -- | Go to Headlight System Check | -- |
8 | Inspect CKT 1783 (PPL) for an open or short to ground. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems. Is CKT 1783 OK? | -- | Go to Step 9 | Go to Step 11 |
9 | Inspect CKT 470 (BLK) for an open. Refer to Testing for Continuity in Wiring Systems. Is CKT 470 OK? | -- | Go to Step 10 | Go to Step 11 |
10 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Is the headlamp switch replacement complete? | -- | Go to Headlight System Check | -- |
11 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
