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. Disconnect the IP compartment lamp switch connector.
2. Use a DMM in order to measure the resistance between terminal B of the IP compartment lamp switch connector and ground.

Is the resistance within the specified range?

0-2 ohms

Go to Step 2

Go to Step 3

2 | Use the DMM in order to measure the voltage between terminal A of the IP compartment lamp switch connector and ground. Does the voltage measure to the specified value? | B+ | Go to Step 4 | Go to Step 5
3 | Repair the open in CKT 250 between the IP compartment lamp switch and ground splice pack G203. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --
4 | Replace the IP compartment lamp switch. Refer to Instrument Panel Compartment Lamp Switch Replacement in Instrument Panel, Gauges, and Console. Is the repair complete? | -- | Go to Interior Lamps System Check | --
5 | Use the DMM in order to backprobe the left IP junction block connector C1. Measure the voltage between terminal E9 and ground. Does the voltage measure to the specified value? | B+ | Go to Step 6 | Go to Step 7
6 | Repair the open in CKT 1732 between the left IP junction block and the IP compartment lamp switch. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --
7 | 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 | --