Schematic Reference: Exterior Lights Schematics

Connector End View Reference: Master Electrical Component List .

Did you perform the Diagnostic System Check - Vehicle?

Go to Step 2

Go to Diagnostic System Check - Vehicle

1. Turn OFF the ignition.
2. Turn the headlamp switch to the OFF position.

Do the park lamps operate properly?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Disconnect the multifunction turn signal switch.

Are the park lamps illuminated?

Go to Step 4

Go to Step 10

Inspect for a short to ground in the park lamp ON signal circuit. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 12

Go to Step 5

Remove the park lamp relay.

Do the park lamps turn OFF?

Go to Step 6

Go to Step 9

1. Reconnect the multifunction turn signal switch.
2. Turn the headlamp switch to the OFF position.
3. Using a test lamp connected to battery positive voltage, probe the park lamp relay control circuit at the I/P fuse block.

Does the test lamp illuminate?

Go to Step 7

Go to Step 8

Test for a short to ground in the park lamp relay control circuit. Refer to Circuit Testing and Wiring Repairs .

Did you find and correct the condition?

Go to Step 12

Go to Step 11

Replace the park lamp relay. Refer to Relay Replacement .

Did you complete the replacement?

Go to Step 12

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Repair a short to battery positive voltage in the park lamp voltage supply circuit. Refer to Circuit Testing and Wiring Repairs .

Did you complete the repair?

Go to Step 12

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Replace the multifunction turn signal switch. Refer to Turn Signal Multifunction Switch Replacement .

Did you complete the repair?

Go to Step 12

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Replace the body control module (BCM). Refer to Control Module References for replacement, setup, and programming.

Did you complete the replacement?

Go to Step 12

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3