Step | Action | Value(s) | Yes | No |
|---|---|---|---|---|
|
Important: A short to ground will cause an open fuse(s). Before performing this diagnostic procedure, inspect the fuse(s) for an open. | ||||
1 | Do the courtesy lamps stay illuminated beyond the 10 second timeout? | -- | Go to Step 10 | Go to Step 2 |
2 |
Is the resistance measured within the specified range? | 0-2 ohms | Go to Step 3 | Go to Step 4 |
3 | Use a J 39200 DMM in order to measure the voltage between terminal A of the courtesy lamp connector and ground. Is the voltage measured equal to the specified value? | B+ | Go to Step 5 | Go to Step 6 |
4 |
Is the resistance measured within the specified range? | 0-2 ohms | Go to Step 7 | Go to Step 9 |
5 | Replace the courtesy lamp. Is the repair complete? | -- | -- | |
6 |
Is the voltage measured to the specified value? | B+ | Go to Step 8 | Go to Step 9 |
7 | Repair the open in CKT 156 between the courtesy lamp and the left IP junction block. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
8 | Repair the open in CKT 1732 between the left IP junction block and the courtesy lamp. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
9 | Replace the left IP junction block. Is the repair complete? | -- | -- | |
10 | Repair the short to ground in CKT 156 between the BCM and the courtesy lamps. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
