Headlamps Inoperative - High Beams Buick
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the entire headlights system check? | -- | Go to Step 2 | Go to Headlight System Check |
2 |
Do the headlamps turn from low beams to high beams? | -- | Go to Step 5 | Go to Step 3 |
3 |
Do the high beam headlamps light? | -- | Go to Step 7 | Go to Step 4 |
4 | Repair the open in CKT 11 (LT GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
5 | Inspect for an open in CKT 251 (BLK/WHT) between the headlamp dimmer switch connector C202 and S293. Refer to Testing for Continuity in Wiring Systems. Is CKT 251 OK? | -- | Go to Step 6 | Go to Step 9 |
6 | Replace the headlamp dimmer switch. Refer to Dimmer Switch Assembly - Disassemble - Off Vehicle and Dimmer Switch Assembly - Assemble - Off Vehicle in Steering Wheel and Column-Tilt. Is the headlamp dimmer switch replacement complete? | -- | Go to Headlight System Check | -- |
7 | Inspect for an open in CKT 524 (PPL) between the LCM and the headlamp dimmer switch connector C202. Refer to Testing for Continuity in Wiring Systems. Is CKT 524 OK? | -- | Go to Step 8 | Go to Step 9 |
8 | Replace the LCM. Refer to Lamp Control Module Replacement . Is the LCM replacement complete? | -- | Go to Headlight System Check | -- |
9 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
Headlamps Inoperative - High Beams Oldsmobile
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the entire headlights system check? | -- | Go to Step 2 | Go to Headlight System Check |
2 |
Is the voltage within the specified range? | 10-15V | Go to Step 3 | Go to Step 9 |
3 | Use a test lamp in order to backprobe the headlamp switch connector cavity D (RED) to ground. Does the test lamp light? | -- | Go to Step 4 | Go to Step 10 |
4 |
Is the voltage within the specified range? | 10-15V | Go to Step 5 | Go to Step 11 |
5 |
Is the voltage within the specified range? | 10-15V | Go to Step 6 | Go to Step 12 |
6 | Connect a DMM from the headlamp relay (position J) cavity 30 (RED) to cavity 86 (BLK). Is the voltage within the specified range? | 10-15V | Go to Step 7 | Go to Step 14 |
7 | Connect a fused jumper from the headlamp relay (position J) cavity 30 (RED) to cavity 87 (LT BLU). Do the high beam headlamps light? | -- | Go to Step 15 | Go to Step 8 |
8 |
Does the test lamp light? | -- | Go to Step 17 | Go to Step 16 |
9 | Repair the open in CKT 242 (RED) between S201 and the lamp control module (LCM). Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Headlight System Check | -- |
10 | Repair the open in CKT 242 (RED) between S201 and the headlamp switch. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Headlight System Check | -- |
11 | Repair the open in CKT 242 (RED) between S201 and the RH IP fuse block. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Headlight System Check | -- |
12 | Inspect for an open in CKT 10 (YEL) between the headlamp switch and the RH IP fuse block. Refer to Testing for Continuity in Wiring Systems. Is CKT 10 OK? | -- | Go to Step 13 | Go to Step 19 |
13 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Is the headlamp switch replacement complete? | -- | Go to Headlight System Check | -- |
14 | Repair the open in CKT 1450 (BLK) between S308 and the RH IP fuse block. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Headlight System Check | -- |
15 | Replace the headlamp relay (position J). Is the relay replacement complete? | -- | Go to Headlight System Check | -- |
16 | Repair the open in CKT 1346 (LT BLU) between the headlamp dimmer switch connector C202 and the RH IP fuse block. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Headlight System Check | -- |
17 | Inspect for an open in CKT 11 (LT GRN) between the headlamp dimmer switch connector C202 and S245. Refer to Testing for Continuity in Wiring Systems. Is CKT 11 OK? | -- | Go to Step 18 | Go to Step 19 |
18 | Replace the headlamp dimmer switch. Refer to Dimmer Switch Assembly - Disassemble - Off Vehicle and Dimmer Switch Assembly - Assemble - Off Vehicle in Steering Wheel and Column-Tilt. Is the headlamp dimmer switch replacement complete? | -- | Go to Headlight System Check | -- |
19 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
Headlamps Inoperative - High Beams Pontiac
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the entire headlights system check? | -- | Go to Step 2 | Go to Headlight System Check |
2 | Operate the headlamp dimmer switch in the high and low positions. Do the low beam headlamps operate? | -- | Go to Step 6 | Go to Step 3 |
3 | Use a test lamp in order to backprobe the headlamp switch connector cavity A (RED) to ground. Does the test lamp light? | -- | Go to Step 4 | Go to Step 10 |
4 |
Do the high beam headlamps light? | -- | Go to Step 11 | Go to Step 5 |
5 |
Does the test lamp light? | -- | Go to Step 6 | Go to Step 12 |
6 |
Do the high beam headlamps light? | -- | Go to Step 14 | Go to Step 7 |
7 | Is the vehicle equipped with lamp monitoring? | -- | Go to Step 8 | Go to Step 13 |
8 |
Do the high beam headlamps light? | -- | Go to Step 9 | Go to Step 15 |
9 | Replace the lamp monitor control module. Refer to Instrument Panel Lamp Dimmer Replacement in Instrument Panel, Gauges and Console. Is the lamp monitor control module replacement complete? | -- | Go to Headlight System Check | -- |
10 | Repair the open in CKT 242 (RED) between S201 and the headlamp switch. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Headlight System Check | -- |
11 | Replace the headlamp switch. Refer to Headlamp Switch Replacement . Is the headlamp switch replacement complete? | -- | Go to Headlight System Check | -- |
12 | Repair the open in CKT 10 (YEL) between the headlamp switch and the headlamp dimmer switch connector C202. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Headlight System Check | -- |
13 | Inspect for an open in CKT 11 (LT GRN) between the headlamp dimmer switch connector C202 and S245. Refer to Testing for Continuity in Wiring Systems. Is CKT 11 OK? | -- | Go to Step 14 | Go to Step 17 |
14 | Replace the headlamp dimmer switch. Refer to Dimmer Switch Assembly - Disassemble - Off Vehicle and Dimmer Switch Assembly - Assemble - Off Vehicle in Steering Wheel and Column-Tilt. Is the headlamp dimmer switch replacement complete? | -- | Go to Headlight System Check | -- |
15 | Inspect for an open in CKT 11 (LT GRN) between the headlamp dimmer switch connector C202 and the lamp monitor control module. Refer to Testing for Continuity in Wiring Systems. Is CKT 11 OK? | -- | Go to Step 16 | Go to Step 17 |
16 | Inspect for an open in CKT 1311 (LT GRN) between the lamp monitor control module and S259. Refer to Testing for Continuity in Wiring Systems. Is CKT 1311 OK? | -- | Go to Step 14 | Go to Step 17 |
17 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Headlight System Check | -- |
