Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Lighting Systems Diagnostic System Check? | -- | Go to Step 2 | |
2 | Verify that the high mount stoplamp is inoperative. Does the high mount stoplamp 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 | 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 7 | Go to Step 6 |
6 | Locate and repair the open in CKT 1540 (ORN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
7 | 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 illuminate? | -- | Go to Step 9 | Go to Step 8 |
8 | Adjust or replace the stoplamp switch. Is the repair complete? | -- | Go to Step 17 | -- |
9 | Inspect the VEH HMSL fuse in the underhood fuse block. Is the fuse open? | -- | Go to Step 10 | Go to Step 11 |
10 | Locate and repair the short to ground in CKT 1320 (LT BLU). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
11 |
Does the test lamp illuminate? | -- | Go to Step 13 | Go to Step 12 |
12 | Locate and repair the open CKT 1320 (LT BLU). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
13 |
Does the test lamp illuminate? | -- | Go to Step 15 | Go to Step 14 |
14 | Locate and repair the open in CKT 1350 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 17 | -- |
15 | Inspect the bulbs in the high mount stoplamp. Are any of the bulbs inoperative? | -- | Go to Step 16 | Go to Step 17 |
16 | Replace the high mount stoplamp. Refer to High Mount Stop Lamp Replacement . 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 |
