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 suspect door lock actuator C1.
2. Connect a fused jumper between the following appropriate door lock actuator connector cavities:

• | LH front: cavities A (TAN) and D (BLK)

• | RH front: cavities D (BLK) and A (TAN)

• | LH rear: cavities A (LT BLU) and D (BLK)

• | RH rear: cavities D (DK BLU) (Buick) or D (LT BLU) (Oldsmobile/Pontiac) and A (BLK/WHT)

Do all of the courtesy lamps turn on?

--

Go to Step 3

Go to Step 4

3 | Replace the suspect door lock actuator. Is the door lock actuator replacement complete? | -- | Go to Interior Lamps System Check | --
4 | Inspect the following circuits for an open:

• | LH front: CKT 126 (TAN)

• | RH front: CKT 49 (BLK)

• | LH rear: CKT 49 (LT BLU)

• | RH rear: CKT 49 (DK BLU) (Buick) or (LT BLU) (Oldsmobile/Pontiac)

Was an open found?

--

Go to Step 5

Go to Step 6

5 | Repair the faulty circuit. Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Interior Lamps System Check | --
6 | Inspect the following circuits for an open:

• | LH Front: CKT 1250 (BLK)

• | RH Front: CKT 1250 (TAN)

• | LH Rear: CKT 1250 (BLK)

• | RH Rear: CKT 1250 (BLK/WHT)

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 1250 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the circuit repair complete? | -- | Go to Interior Lamps System Check | --
8 | Replace the body control module (MALL). Refer to Body Control Module Replacement in Body Control System. Is the MALL Module replacement complete? | -- | Go to Interior Lamps System Check | --