Courtesy Lamps Inoperative-Overhead Lamps

*COURTESY LAMPS INOPERATIVE-OVERHEAD LAMPS

For a complete wiring diagram refer to Diagrams/Electrical





Diagnostic Test

1. INTERMITTENT CONDITION

Turn the ignition on.

Turn the Courtesy Lamps on.

Verify that the Courtesy Lamps are inoperative.

Do the Courtesy Lamps operate normally?

Yes

- The condition that caused the symptom is currently not present. Inspect the related wiring for a possible intermittent condition. Look for any chafed, pierced, pinched, or partially broken wires
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 2

2. OPEN BULB

Remove and inspect any inoperative courtesy lamp bulbs.

Are any of the inspected bulbs open or shorted?

Yes

- Replace the applicable open bulb.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Go To 3

3. COURTESY LAMP DRIVER CIRCUIT OPEN

Turn the ignition on.

Measure the voltage of the Courtesy Lamp Driver circuit to ground.

Is the voltage above 10.0 volts?

Yes

- Repair the Courtesy Lamps Driver circuit for an open condition.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test

No

- Replace the Junction Block.
- Perform BODY VERIFICATION TEST - VER 1. Body Verification Test