Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
DEFINITION: This table diagnoses the lumbar support, in out inoperative (option AL2 or AM3) in the right seat. | ||||
1 | Did you perform the Lumbar Support System Check? | -- | Go to Step 2 | |
2 | Use a test lamp in order to backprobe the RH lumbar horizontal relay connector from cavity C (RED) to ground. Does the test lamp light? | -- | Go to Step 3 | Go to Step 11 |
3 | Use a test lamp in order to backprobe the RH lumbar horizontal relay connector from cavity C (RED) to cavity D (BLK). Does the test lamp light? | -- | Go to Step 4 | Go to Step 12 |
4 |
Does the test lamp light? | -- | Go to Step 5 | Go to Step 13 |
5 |
Does the test lamp light? | -- | Go to Step 6 | Go to Step 14 |
6 |
Does the test lamp light? | -- | Go to Step 7 | Go to Step 16 |
7 |
Does the test lamp light? | -- | Go to Step 8 | Go to Step 16 |
8 | Test for an open or short to ground in CKT 210 (WHT or PNK/BLK) between the RH lumbar horizontal relay and the RH lumbar horizontal motor. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems. Is the wiring OK? | -- | Go to Step 9 | Go to Step 17 |
9 | Test for an open or short to ground in CKT 211 (DK BLU or DK BLU/WHT) between the RH lumbar horizontal relay and the RH lumbar horizontal motor. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems. Is the wiring OK? | -- | Go to Step 10 | Go to Step 17 |
10 | Replace the RH lumbar horizontal motor. Refer to Front Seat Lumbar Support Replacement . Is the lumbar horizontal motor replacement complete? | -- | -- | |
11 | Repair the open in CKT 742 (RED) between splice S356 and the RH lumbar horizontal relay. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | -- | |
12 | Repair the open in CKT 850 (BLK) between splice S357 and the RH lumbar horizontal relay. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
13 | Test for an open or short to ground in CKT 758 (GRY) between the RH lumbar switch and the RH lumbar horizontal relay. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems. Is the wiring OK? | -- | Go to Step 15 | Go to Step 17 |
14 | Test for an open or short to ground in CKT 759 (PPL) between the RH lumbar switch and the RH lumbar horizontal relay. Refer to Testing for Continuity or Testing for Short to Ground in Wiring Systems. Is the wiring OK? | -- | Go to Step 15 | Go to Step 17 |
15 | Replace the RH lumbar switch. Refer to Lumbar/Heated Seat Switch Replacement - Power . Is the lumbar switch replacement complete? | -- | -- | |
16 | Replace the RH lumbar horizontal relay. Is the lumbar horizontal relay replacement complete? | -- | -- | |
17 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
