For 1990-2009 cars

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

1. Disconnect the body control module (MALL) connector C1.
2. Measure the voltage to ground at the MALL module connector C1 cavity G (ORN).

Is battery voltage measured?

--

Go to Step 3

Go to Step 6

3 |

1. Disconnect the MALL module connector C2.
2. Turn the ignition switch to the RUN position.
3. Measure the voltage to ground at the MALL module connector C2 cavity C13 (PNK).

Is battery voltage measured?

--

Go to Step 4

Go to Step 7

4 | Measure the voltage between the MALL module connector C1 cavity G (ORN) and cavity D (BLK). Is battery voltage measured? | -- | Go to Step 5 | Go to Step 8
5 | Inspect CKT 156 (WHT) for an open between S356 and the MALL module. Refer to Testing for Continuity in Wiring Systems. Is CKT 156 OK? | -- | Go to Step 9 | Go to Step 11
6 | Repair the open or short to ground in CKT 640 (ORN). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --
7 | Repair the open or short to ground in CKT 39 (PNK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --
8 | Repair the open in CKT 150 (BLK). Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --
9 | Inspect CKT 1732 (ORN) for an open between S336 and the MALL module. Refer to Testing for Continuity in Wiring Systems. Is CKT 1732 OK? | -- | Go to Step 10 | Go to Step 11
10 | Replace the MALL. Refer to Body Control Module Replacement in Body Control System. Is the repair complete? | -- | Go to Interior Lamps System Check | --
11 | Repair the suspect wiring. Refer to Wiring Repairs in Wiring Systems. Is the repair complete? | -- | Go to Interior Lamps System Check | --