Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 |
Are both backup lamps inoperative? | -- | Go to Step 5 | Go to Step 2 |
2 |
Did the test lamp light? | -- | Go to Step 3 | Go to Step 4 |
3 | Repair the open in CKT 150 (BLK) between the inoperative backup lamp and ground. Is the repair complete? | -- | System OK | -- |
4 | Repair the open in CKT 24 (LT GRN) between Splice S900 and the inoperative backup lamp? Is the repair complete? | -- | System OK | Go to Step 5 |
5 |
Did the test lamp light? | -- | Go to Step 6 | Go to Step 7 |
6 | Repair the open in CKT 150 (BLK) between the inoperative backup lamp and ground. Is the repair complete? | -- | System OK | -- |
7 | Connect the test lamp from terminal B at connector C402 to ground. Did the test lamp light? | -- | Go to Step 8 | Go to Step 9 |
8 | Repair the open in CKT 24 (LT GRN) between C402 and the backup lamps. Is the repair complete? | -- | System OK | -- |
9 |
Did the test lamp light? | -- | Go to Step 10 | Go to Step 11 |
10 | Repair the open in CKT 24 (LT GRN) between the backup lamp switch C402. Is the repair complete? | -- | System OK | -- |
11 | Connect the test lamp from the backup lamp switch terminal A (Automatic) or terminal C2 (Manual) to chassis ground. Did the test lamp light? | -- | Go to Step 12 | Go to Step 13 |
12 | Replace the backup lamp switch. Is the repair complete? | -- | System OK | -- |
13 | Connect the test lamp from connector C200 (terminal 22) to ground. Did the test lamp light? | -- | Go to Step 14 | Go to Step 15 |
14 | Repair the open in CKT 8 or CKT 139 (PNK), or CKT 441 (BRN) between C200 and the backup lamp switch. Is the repair complete? | -- | System OK | -- |
15 | Repair the open in CKT 145 (PNK) between the IP fuse block and C200. Is the repair complete? | -- | System OK | -- |
