Stop Lamps Inoperative Buick/Oldsmobile
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the entire Exterior Lights System Check? | -- | Go to Step 2 | |
2 | Backprobe the stoplamp/BTSI switch connector C2 with a test lamp from cavity A (ORN) to ground. Does the test lamp light? | -- | Go to Step 3 | Go to Step 7 |
3 |
Do all of the stoplamps light? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the stoplamp/BTSI switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Is the repair complete? | -- | -- | |
5 | Inspect for an open in CKT 17 (WHT) between the stoplamp/BTSI switch and S228. Refer to Testing for Continuity in Wiring Systems. Is CKT 17 OK? | -- | Go to Step 6 | Go to Step 8 |
6 | Replace the turn/hazard switch. Refer to Turn Signal and Multifunction Switch Assembly - Disassemble - Off Vehicle and Turn Signal and Multifunction Switch Assembly - Assemble - Off Vehicle in Steering Wheel and Column - Tilt. Is the repair complete? | -- | -- | |
7 | Repair the open in CKT 140 (ORN) between the IP fuse block and the stoplamp/BTSI switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
8 | Repair the open in CKT 17 (WHT) between the stoplamp/BTSI switch and S228. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- |
Stop Lamps Inoperative Pontiac
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the entire Exterior Lights System Check? | -- | Go to Step 2 | |
2 | Backprobe the stoplamp/BTSI switch connector C2 with a test lamp from cavity A (ORN) to ground. Does the test lamp light? | -- | Go to Step 3 | Go to Step 11 |
3 |
Do all of the stop lamps light? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the stoplamp/BTSI switch. Refer to Stop Lamp Switch Replacement in Hydraulic Brakes. Is the repair complete? | -- | -- | |
5 | Is the vehicle equipped with lamp monitoring? | -- | Go to Step 7 | Go to Step 6 |
6 | Repair the open in CKT 20 (LT BLU) between the stoplamp/BTSI switch and S231. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
7 |
Do all of the stop lamps light, except the high mounted stop lamp? | -- | Go to Step 8 | Go to Step 9 |
8 | Replace the lamp monitor control module. Refer to Instrument Panel Lamp Dimmer Replacement in Instrument Panel, Gauges and Console. Is the repair complete? | -- | -- | |
9 | Inspect for an open in CKT 20 (LT BLU) between the stoplamp/BTSI switch and S231. Refer to Testing for Continuity in Wiring Systems. Is CKT 20 OK? | -- | Go to Step 10 | Go to Step 6 |
10 | Repair the open in CKT 1054 (ORN) between the lamp monitor control module and S425. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
11 | Repair the open or the short to ground in the CKT 140 (ORN) wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- |
