Tools Required

DEFINITION:

Use this diagnostic in order to diagnose the roof marker lamps only if the park and the tail lamps are operative.

Did you perform the Exterior Lights System Check?

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Go to Step 2

Go to Exterior Lights System Check

Place the headlamp switch in the Park position.

Are all the roof marker lamps inoperative?

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Go to Step 3

Go to Step 8

1. Remove the left outside roof marker lamp bulb.
2. Connect a test lamp between cavity A and ground.

Does the test lamp light?

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Go to Step 4

Go to Step 6

Connect a test lamp across cavities A and B.

Does the test lamp light?

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Go to Step 5

Go to Step 7

Replace the inoperative roof marker lamp bulbs and/or sockets.

Is the repair complete?

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Go to Exterior Lights System Check

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Repair the open in CKT 9 (BRN) between the roof marker lamps and splice S210.

Is the repair complete?

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Go to Exterior Lights System Check

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Repair the open in CKT 150 (BLK) between the roof marker lamps and splice S316.

Is the repair complete?

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Go to Exterior Lights System Check

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1. Inspect the inoperative roof marker lamp bulb(s).
2. Replace the roof marker lamp bulb(s) as needed.
3. Inspect the lamp sockets and the related wiring.
4. Replace or repair the lamp sockets and related wiring as needed.

Is the repair complete?

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Go to Exterior Lights System Check

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