For 1990-2009 cars

Step | Action | Value(s) | Yes | No
--- | --- | --- | --- | ---
1 | Did you perform the Interior Lamps 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 between the MALL module connector C1 cavity G (ORN) and ground.

Is the voltage within the specified range?

10-15 V

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 between the MALL module connector C2 cavity C13 (PNK) and ground.

Is the voltage within the specified range?

10-15 V

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 the voltage within the specified range? | 10-15 V | Go to Step 5 | Go to Step 8
5 | Test CKT 156 (WHT) for an open between S356 and the MALL module. Refer to Testing for Continuity in Wiring Repairs. Is CKT 156 OK? | -- | Go to Step 9 | Go to Step 11
6 | Repair the open or the 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 | Test 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 MALL Replacement. 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 | --