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 |
Doess the testlamp light? | -- | Go to Step 2 | Go to Step 10 |
2 |
Does the testlamp light?? | -- | Go to Step 3 | Go to Step 4 |
3 | Use the testlamp in order to probe between the A terminal and the C terminal of the dome lamp connector. Does the voltage measure at the specified value? | -- | Go to Step 5 | Go to Step 6 |
4 | Repair the open in CKT 1732 between the left IP junction block and the dome lamp. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | System OK | -- |
5 | Use the testlamp in order to probe between the B terminal and the C terminal of the dome lamp connector. Does the voltage measure at the specified value? | -- | Go to Step 7 | Go to Step 8 |
6 | Use the testlamp connected to B+ in order to probe the left IP junction block connector C3 terminal C10. Does the testlamp light? | -- | Go to Step 9 | Go to Step 10 |
7 | Replace the dome lamp. Refer to Dome Lamp Replacement . Is the repair complete? | -- | -- | |
8 | Repair the open in CKT 750 between the dome lamp and the ground splice pack G401. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
9 | Repair the open in CKT 156 between the left IP junction block and the dome lamp. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | -- | |
10 | Replace the left IP junction block. Refer to Relay/Fuse Center Replacement in Wiring Systems. Is the repair complete? | -- | -- | |
