Did you perform the Lighting System Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Inspect the PARK LP fuse.

Is the fuse open?

Go to Step 3

Go to Step 4

Repair a short to ground in CKT 1340.

Is the repair complete?

Go to Step 9

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1. Turn the headlamp/instrument panel (IP) lamp dimmer switch to the PARK position.
2. Use a test light in order to backprobe the headlamp/IP lamp dimmer switch harness connector between terminal R and ground.

Did the test lamp light?

Go to Step 8

Go to Step 5

Use a test light in order to backprobe the headlamp/IP lamp dimmer switch harness connector between terminal O and ground.

Did the test lamp light?

Go to Step 6

Go to Step 7

Replace the headlamp/IP lamp dimmer switch. Refer to Headlamp Switch Replacement .

Is the repair complete?

Go to Step 9

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Repair the following conditions in CKT 1340 between the PARK LP fuse and the headlamp and the IP lamp dimmer switch harness connector terminal O:

Is the repair complete?

Go to Step 9

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Repair the following conditions in CKT 9 between the headlamp and the IP lamp dimmer switch harness connector terminal R and S204:

Is the repair complete?

Go to Step 9

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 2