Schematic Reference: Exterior Lights Schematics

Did you review the exterior lighting operation and perform the necessary inspections?

Go to Step 2

Go to Symptoms - Lighting Systems

1. Probe the upfitter connector's park lamps supply voltage circuit with a test lamp that is connected to a good ground.
2. Place the headlamp switch in the PARK position.

Does the test lamp illuminate?

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

Go to Step 3

Do the vehicle's park lamps illuminate?

Go to Step 4

Go to Park Lamps Inoperative

Repair an open, high resistance, or short to ground on the upfitter connector's park lamp supply voltage circuit. Refer to Circuit Testing and Wiring Repairs in Wiring Systems.

Did you complete the repair?

Go to Step 5

--

Operate the system in order to verify the repair.

Did you correct the condition?

System OK

Go to Step 3