For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Interior Lights System Check? | -- | Go to Step 2 | Go to Interior Lamps System Check
2 |

1. Disconnect the lamp dimmer switch connector.
2. Connect a fused jumper from the lamp dimmer switch connector cavities E (DK BLU) to F (BLK).

Do all of the courtesy lamps turn on?

--

Go to Step 3

Go to Step 6

3 | Connect a DMM from the lamp dimmer switch connector cavity J (ORN) to cavity F (BLK). Is the voltage within the specified range? | 12-14V | Go to Step 4 | Go to Step 5
4 | Replace the lamp dimmer switch. Is the lamp dimmer switch replacement complete? | -- | Go to Interior Lamps System Check | --
5 | Repair the open in CKT 40 (ORN). Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Interior Lamps System Check | --
6 | Inspect CKT 1393 (DK BLU) for an open. Refer to Testing for Continuity in Wiring Systems. Was an open found? | -- | Go to Step 7 | Go to Step 8
7 | Repair the open in CKT 1393 (DK BLU). Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Interior Lamps System Check | --
8 | Inspect CKT 1250 (BLK) for an open. Refer to Testing for Continuity in Wiring Systems. Was an open found? | -- | Go to Step 9 | Go to Step 10
9 | Repair the open in CKT 1250 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Interior Lamps System Check | --
10 | Replace the MALL. Refer to Body Control Module Replacement in Body Control System. Is the MALL module replacement complete? | -- | Go to Interior Lamps System Check | --