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. Leave the trailer harness connected to the trailer.
2. Turn ON the park lamps.

Do the trailer park lamps illuminate?

Go to Testing for Intermittent Conditions and Poor Connections

Go to Step 3

Repair an open or a high resistance in the park lamp supply voltage circuit of the trailer harness. Refer to Wiring Repairs or Connector Repairs .

Did you complete the repair?

Go to Step 4

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Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3