Schematic Reference: Interior Lights Schematics

Connector End View Reference: Lighting Systems Connector End Views or Body Control System Connector End Views in Body Control System.

Did you perform the Lighting Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Open any door.

Do the interior courtesy lamps illuminate?

Go to Step 3

Go to Courtesy Lamps Inoperative

1. Disconnect the outside rear view (OSRV) mirror connector from the driver door module (DDM) or passenger door module (PDM).
2. Test for continuity between the door exterior courtesy lamp supply voltage circuit and the door exterior courtesy lamp ground circuit of the OSRV mirror connector. Refer to Testing for Continuity In Wiring Systems.

Is continuity present?

Go to Step 5

Go to Step 4

Inspect the bulb for an open filament.

Is the bulb OK?

Go to Step 6

Go to Step 7

Inspect for poor connections at the harness connector of the DDM or PDM. 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 10

Go to Step 8

Inspect for poor connections at the harness connector of the OSRV mirror. 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 10

Go to Step 9

Replace the bulb. Refer to Outside Rearview Mirror Courtesy Lamp Replacement .

Did you complete the replacement?

Go to Step 10

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Replace the DDM or PDM. Refer to Door Lock and Side Window Switch Replacement - Driver Side or Door Lock and Side Window Switch Replacement - Passenger Side in Doors.

Did you complete the replacement?

Go to Step 10

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Replace the OSRV mirror. Refer to Power Mirror Replacement in Doors.

Did you complete the replacement?

Go to Step 10

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3