Schematic Reference: Interior Lights Schematics

Connector End View Reference: Lighting Systems Connector End Views or Data Communication Connector End Views

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

Open any door.

Do the exterior courtesy lamps operate correctly?

Go to Testing for Electrical Intermittents

Go to Step 3

Do the interior courtesy lamps illuminate?

Go to Step 4

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.

Is continuity present?

Go to Step 6

Go to Step 5

Inspect the bulb for an open filament.

Is the bulb OK?

Go to Step 7

Go to Step 8

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 .

Did you find and correct the condition?

Go to Step 11

Go to Step 9

Inspect for poor connections at the harness connector of the OSRV mirror. Refer to Testing for Intermittent Conditions and Poor Connections and Connector Repairs .

Did you find and correct the condition?

Go to Step 11

Go to Step 10

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

Did you complete the replacement?

Go to Step 11

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Replace the DDM or PDM. Refer to Control Module References.

Did you complete the replacement?

Go to Step 11

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Replace the mirror. Refer to Outside Rearview Mirror Replacement.

Did you complete the replacement?

Go to Step 11

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3