For 1990-2009 cars

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 |

1. Move the dome lamp switch to the DOOR position.
2. Open the left front door.
3. Use a testlamp connected to ground in order to backprobe the left IP junction block connector C3 terminal C4.

Doess the testlamp light?

--

Go to Step 2

Go to Step 10

2 |

1. Disconnect the dome lamp connector.
2. Use the testlamp connected to ground in order to probe the C terminal of the dome lamp connector.

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? | -- | Go to Interior Lamps System Check | --
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? | -- | Go to Interior Lamps System Check | --
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? | -- | Go to Interior Lamps System Check | --
10 | Replace the left IP junction block. Refer to Relay/Fuse Center Replacement in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --