Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
1 | Did you perform the Lighting Systems Diagnostic System Check? | -- | Go to Step 2 | |
2 | Verify that one of the backup lamps is inoperative. Do the backup lamps operate normally? | -- | Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems | Go to Step 3 |
3 |
Is the bulb open? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the bulb. Is the repair complete? | -- | Go to Step 12 | -- |
5 |
Does the J 39200 (DMM) display the specified value? | B+ | Go to Step 7 | Go to Step 6 |
6 | Locate and repair the open in CKT 1324 (LT GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 12 | -- |
7 | Connect a J 39200 (DMM) between CKT 1324 (LT GRN) terminal A at the lamp socket and CKT 1350 (BLK) terminal G at the lamp socket. Does the J 39200 (DMM) display the specified value? | B+ | Go to Step 8 | Go to Step 11 |
8 | Inspect the lamp socket for damaged or corroded terminals. Are the lamp socket terminals damaged or corroded? | -- | Go to Step 9 | Go to Step 10 |
9 | Repair or replace the lamp socket as needed. Is the repair complete? | -- | Go to Step 12 | -- |
10 | Replace the bulb. Is the repair complete? | -- | Go to Step 12 | -- |
11 | Locate and repair the open in CKT 1350 (BLK) between the lamp socket and S427. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 12 | -- |
12 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
