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 | Inspect the inoperative bulb for a open filament and the socket for damaged or corroded contacts Was a problem found? | -- | Go to Step 4 | Go to Step 5 |
4 | Replace the inoperative bulb or clean/replace the socket. Is the repair complete? | -- | Go to Step 9 | -- |
5 |
Is voltage present? | B+ | Go to Step 7 | Go to Step 6 |
6 | Locate and repair the open or high resistance in CKT 1324 (LT GRN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | -- |
7 | Connect the J 39200 DMM at the inoperative lamp socket between CKT 1750/2250 (BLK) and ground to check for continuity. Refer to Circuit Testing in Wiring Systems. Is there continuity? | -- | Go to Step 4 | Go to Step 8 |
8 | Locate and repair the open in CKT 1750/2250 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Step 9 | -- |
9 | Operate the system in order to verify the repair. Did you correct the condition? | -- | System OK | Go to Step 3 |
