Schematic Reference: Interior Lights Schematics

1

Did you perform the Lighting System Diagnostic System Check

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

1. Cover the ambient light sensor.
2. Close the doors.
3. Wait more than 40 seconds.

Does the ignition key cylinder lamp remain on?

Go to Step 3

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Do the courtesy lamps remain on?

Go to Step 4

Go to Courtesy Lamps Always On

Test the key cylinder lamp control circuit of the ignition key cylinder lamp for short to ground. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 7

Go to Step 5

Inspect for poor connections at the harness connector of the IPM. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs in Wiring Systems.

Did you find and correct the condition?

Go to Step 7

Go to Step 6

Important:: Perform the setup procedure for the IPM. Refer to Body Control Module (BCM) Programming/RPO Configuration in Body Control System.

Replace the IPM. Refer to Instrument Panel Module Replacement in Body Control System.

Did you complete the replacement?

Go to Step 7

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Operate the system in order to verify the repair.

Did you find and correct the condition?

System OK

Go to Step 2