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 LAMPS fuse. Is the STOP LAMPS 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 | Use a test lamp in order to backprobe the left IP junction block connector C3 between terminal A1 and ground. Does the test lamp light? | -- | Go to Step 7 | Go to Step 8 |
5 |
Does the test lamp light? | -- | Go to Step 8 | Go to Step 9 |
6 | Inspect the adjustment of the stoplamp switch. If the adjustment is correct, replace the stoplamp switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Is the repair complete? | -- | -- | |
7 | Repair the open in CKT 140 between the left IP junction block and the brake switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
8 | Replace the left IP junction block. Is the repair complete? | -- | -- | |
9 | Repair the open in CKT 20 between the brake switch and the left IP junction block. Refer to Wiring Repairs in Wiring Systems. | -- | -- | |
10 | Replace the STOP LAMPS fuse. Is the repair complete? | -- | -- | |
