Schematic Reference Exterior Lights Schematics

Did you perform the Lighting Systems Diagnostic System Check?

Go to Step 2

Go to Diagnostic System Check - Lighting Systems

Verify that the marker, license and tail lamps are always on.

Do the marker, license and tail lamps operate normally?

Go to Testing for Intermittent Conditions and Poor Connections in Wiring Systems

Go to Step 3

Disconnect the multifunction headlamp switch.

Do the marker, license, and tail lamps remain illuminated?

Go to Step 4

Go to Step 9

Remove the park lamp switch relay.

Do the marker, license, and tail lamps remain illuminated?

Go to Step 6

Go to Step 5

Test for a short to voltage in the park lamp switch relay supply voltage circuit. Refer to Wiring Repairs in Wiring Systems.

Was a problem found?

Go to Step 7

Go to Step 10

Remove the park lamp relay from the body relay block.

Do the marker, license, and tail lamps remain illuminated?

Go to Step 8

Go to Step 11

Repair the short to voltage in the park lamp switch relay supply voltage circuit. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

Go to Step 12

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Repair the short to voltage in one of the following circuits. Refer to Wiring Repairs in Wiring Systems.

Is the repair complete?

Go to Step 12

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Replace the multifunction headlamp switch. Refer to Turn Signal Multifunction Switch Replacement in Steering Wheel and Column.

Is the repair complete?

Go to Step 12

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Replace the park lamp switch relay. Refer to Relay Replacement in Wiring Systems.

Is the repair complete?

Go to Step 12

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Replace the park lamp relay. Refer to Relay Replacement in Wiring Systems.

Is the repair complete?

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