Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Lighting Systems Diagnostic System Check? | -- | Go to Step 2 | |
2 | Verify that the stoplamps are inoperative. Do the stoplamps operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 | Inspect the STOP LP fuse at the underhood fuse block. Is the STOP LP fuse good? | -- | Go to Step 5 | Go to Step 4 |
4 | Locate and repair short to ground in CKT 1540 (ORN) and/or CKT 17 (WHT). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
5 | Apply the brakes. Does the high mount stop lamp illuminate when you apply the brakes? | -- | Go to Step 12 | Go to Step 6 |
6 | Connect a test lamp between the stoplamp switch terminal B and ground. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 8 | Go to Step 7 |
7 | Locate and repair the open in CKT 1540 (ORN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
8 | Connect a test lamp between the stoplamp switch terminal A and ground while depressing the brake pedal. Refer to Circuit Testing in Wiring Systems. Does the test lamp light? | -- | Go to Step 10 | Go to Step 9 |
9 | Adjust or replace the stoplamp switch. Is the repair complete? | -- | Go to Step 17 | -- |
10 | Using a test lamp to ground, check for voltage on both sides of the VEH HMSL fuse in the underhood fuse block while depressing the brake pedal. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate on both sides? | -- | Go to Step 12 | Go to Step 11 |
11 | Locate and repair the open in CKT 17 (WHT) or the short in CKT 1320 (LT BLU). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
12 | Connect a test lamp to ground and terminal A of either tail/stoplamp connector while depressing the brake pedal. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 13 | Go to Step 14 |
13 | Connect the test lamp between terminal A and terminal G of the tail/stoplamp connector. Refer to Circuit Testing in Wiring Systems. Does the test lamp illuminate? | -- | Go to Step 16 | Go to Step 15 |
14 | Locate and repair the open in CKT 1320 (LT BLU). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
15 | Locate and repair the open in CKT 1350 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
16 | Replace the inoperative tail/stoplamp bulb. Is the repair complete? | -- | Go to Step 17 | -- |
17 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
