Was the Lighting Systems Diagnostic System Check performed?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Use the Scan Tool in order to command the courtesy lamps OFF.

Do the courtesy lamps turn OFF?

Go to Step 4

Go to Step 3

Test for a short to ground in the courtesy lamps control circuit (156). Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

System OK

Go to Step 7

Test for a short to ground in each door jamb switch circuit:

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find and correct the condition?

System OK

Go to Step 5

Test each door jamb switch for proper operation. Refer to the following:

Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you find a malfunctioning door jamb switch?

Go to Step 6

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

Replace the malfunctioning door jamb switch. Refer to Door Jamb Switch Replacement in Doors.

Is the repair complete?

System OK

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

Replace the BCM. Refer to Body Control Module Replacement in Body Control System.

Is the repair complete?

System OK

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