Lumbar Support Inoperative Buick
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the entire Buick Lumbar Support System Check performed? | -- | Go to Step 2 | |
2 | Backprobe the lumbar switch connector with a test lamp from cavity A (ORN) to ground. Does the test lamp light? | -- | Go to Step 3 | Go to Step 7 |
3 |
Does the test lamp light for both ground cavities? | -- | Go to Step 4 | Go to Step 8 |
4 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 9 |
5 |
Does the test lamp light? | -- | Go to Step 6 | Go to Step 10 |
6 | Replace the lumbar motor. Refer to Front Seat Lumbar Support Replacement Is the repair complete? | -- | -- | |
7 | Repair the open in CKT 1340 (ORN) between S306 (left) or S307 (right) and the lumbar switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
8 | Repair the open in CKT 150 (BLK) between S304 (left) or S305 (right) and the lumbar switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
9 | Inspect CKT 611 (DK BLU) (left) or CKT 211 (BRN) (right) for an open between the lumbar switch and the lumbar motor. Refer to Testing for Continuity in Wiring Systems. Is CKT 611 or CKT 211 OK? | -- | Go to Step 11 | Go to Step 12 |
10 | Inspect CKT 610 (PNK) (left) or CKT 210 (PPL) (right) for an open between the lumbar switch and the lumbar motor. Refer to Testing for Continuity in Wiring Systems. Is CKT 610 or CKT 210 OK? | -- | Go to Step 11 | Go to Step 12 |
11 | Replace the lumbar switch. Refer to Power Seat Switch Replacement . Is the repair complete? | -- | -- | |
12 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- |
Lumbar Support Inoperative Oldsmobile
Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Was the entire Oldsmobile Lumbar Support System Check performed? | -- | Go to Step 2 | |
2 | Use a test lamp in order to backprobe the seat/lock switch connector from cavity B (ORN) to ground. Does the test lamp light? | -- | Go to Step 3 | Go to Step 9 |
3 | Use a test lamp in order to backprobe the seat/lock switch connector from cavity B (ORN) to cavity D (BLK). Does the test lamp light? | -- | Go to Step 4 | Go to Step 10 |
4 |
Is the voltage within the specified range? | 10-15 V | Go to Step 5 | Go to Step 11 |
5 |
Is the voltage within the specified range? | 10-15 V | Go to Step 6 | Go to Step 12 |
6 |
Is the voltage (ignore polarity) within the specified range for each switch operation? | 10-15 V | Go to Step 8 | Go to Step 7 |
7 | Replace the lumbar seat module. Is the repair complete? | -- | -- | |
8 | Replace the suspect seat/lock switch. Refer to Power Seat Switch Replacement . Is the repair complete? | -- | -- | |
9 | Repair the open in CKT 40 (ORN) between S211 and the seat/lock switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
10 | Repair the open in CKT 151 (BLK/WHT) between S212 and the seat/lock switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
11 | Repair the open in CKT 1340 (ORN) between S339 and the lumbar seat module switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
12 | Repair the open in CKT 150 (BLK) between S310 and the lumbar seat module switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- |
