Left Back Up Lamp Inoperative

*LEFT BACK UP LAMP INOPERATIVE









For a complete Exterior Lamps Circuit Diagram, Schematics and Diagrams.

Diagnostic Test

1. INSPECT THE LEFT BACK UP LAMP BULB
NOTE: If all of the turn signal lamps and both of the back up lamps are inoperative, inspect Fuse 4 located in the Illumination Control Module/IP Fuse Block. If the fuse is open, repair the cause of the open fuse before continuing.

Turn the ignition off.
Remove the Left Back Up Lamp bulb and inspect for an open filament.
Is the Bulb filament open?

Yes

- Replace the Left Back Up Lamp bulb. Removal.
- Perform BODY VERIFICATION TEST. Body Verification Test

No

- Go to 2

2. MEASURE FUSED B(+) CIRCUIT RESISTANCE




Disconnect the Left Rear Lamp Assembly harness connector.
Disconnect the Illumination Control Module harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance between the Left Rear Lamp Assembly harness connector and the Illumination Control Module harness connector.
Is the resistance below 5.0 ohms?

Yes

- Go to 3

No

- Repair the Fused B(+) circuit for an open between the Left Rear Lamp Assembly and the Illumination Control Module.
- Perform BODY VERIFICATION TEST. Body Verification Test

3. MEASURE LEFT BACK UP LAMP VOLTAGE




Connect the Illumination Control Module harness connector.
Turn the ignition on.
Move the transmission shift lever into reverse.
Measure the voltage between the Left Rear Lamp Assembly harness connector cavity 5 and ground.
Is voltage present?

Yes

- Go to 4

No

- Replace the Illumination Control Module.
- Perform BODY VERIFICATION TEST. Body Verification Test

4. MEASURE LEFT BACK UP LAMP GROUND CIRCUIT RESISTANCE




Move the transmission shift lever into park.
Turn the ignition off.
Measure the resistance between the Left Rear Lamp Assembly harness connector and ground.
Is the resistance below 5.0 ohms?

Yes

- Ensure that the Left Back Up Lamp bulb is installed properly and replace the bulb socket if necessary.
- Perform BODY VERIFICATION TEST. Body Verification Test

No

- Repair the Left Rear Lamp Assembly ground circuit for an open.
- Perform BODY VERIFICATION TEST. Body Verification Test