Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
|
Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open. | ||||
1 | Inspect the STOP HAZ fuse. Is the STOP HAZ fuse open? | -- | Go to Step 10 | Go to Step 2 |
2 | Use a test lamp in order to backprobe connector C1 of the brake switch connector between terminal A and ground. Does the test lamp light? | -- | Go to Step 3 | Go to Step 4 |
3 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 6 |
4 | Repair the open in CKT 140 between the fuse block and the brake switch. Is the repair complete? | -- | -- | |
5 |
Does the test lamp light? | -- | Go to Step 8 | Go to Step 9 |
6 | Inspect the adjustment of the brake switch. If the adjustment is correct, replace the brake switch. Is the repair complete? | -- | -- | |
7 | Repair the open in CKT 140 between the left IP wiring harness junction block and the brake switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
8 | Replace the turn/hazard headlamp switch assembly. Is the repair complete? | -- | -- | |
9 | Repair the open in CKT 17 between the brake switch and the turn/hazard headlamp switch assembly. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
10 |
Test CKT 140 for continuity to ground at terminal A of brake switch . Is ground present? | -- | Go to Step 11 | Go to Step 12 |
11 | Repair Short to ground in CKT 140. Refer to Wiring Repairs in wiring systems. Is repair complete? | -- | -- | |
12 | Test CKT 17 for continuity to ground. Is ground present? | -- | Go to Step 13 | Go to Step 14 |
13 | Repair short to ground in CKT 17. Refer to Wiring Repairs in wiring systems Is repair complete? | -- | -- | |
14 | With brake switch pressed, test CKT 17 at terminal B of brake switch for continuity to ground. Is ground present? | -- | Go to Step 15 | Go to Step 16 |
15 | Replace brake switch. Refer to LINK. Is repair complete? | -- | -- | |
16 | Repair short to ground in CKT 18 or 19. Is repair complete? | -- | -- | |
