GM Service Manual Online
For 1990-2009 cars only

Step

Action

Yes

No

Schematic Reference: Door Lock/Indicator Schematics

Connector End View Reference: Vehicle Access Connector End Views

1

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

2

Open and close the driver and passenger doors one at a time while monitoring the driver information center (DIC) display.

Do the door ajar indicators operate properly?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

3

Do the courtesy lamps operate properly with the opening and closing of each of the doors?

Go to Step 4

Go to Courtesy Lamps Inoperative

4

Replace the instrument panel cluster (IPC). Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 5

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5

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3