Left Fog Lamp Inoperative

*LEFT FOG LAMP INOPERATIVE









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

Diagnostic Test

1. INSPECT THE LEFT FOG LAMP BULB
NOTE: If both of the fog lamps are inoperative, inspect Fuse 9 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 Fog Lamp bulb and inspect for an open filament.
Is the Bulb filament open?

Yes

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

No

- Go to 2

2. MEASURE FUSED B(+) CIRCUIT RESISTANCE




Disconnect the Left Fog Lamp harness connector.
Disconnect the Illumination Control Module harness connector.

NOTE: Check connectors - Clean/repair as necessary.

Measure the resistance of the Fused B(+) circuit from the Left Fog Lamp harness connector to 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 Fog Lamp and the Illumination Control Module.
- Perform BODY VERIFICATION TEST. Body Verification Test

3. MEASURE LEFT FOG LAMP VOLTAGE




Connect the Illumination Control Module harness connector.
Turn the ignition on.
Turn the fog lamps on.
Measure the voltage of the Fused B(+) circuit at the Left Fog Lamp harness connector cavity 2.
Is the voltage above 10 volts?

Yes

- Go to 4

No

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

4. MEASURE LEFT FOG LAMP GROUND CIRCUIT RESISTANCE




Turn the ignition off.
Turn the fog lamps off.
Measure the resistance between ground and the Left Fog Lamp harness connector cavity 1.
Is the resistance below 5.0 ohms?

Yes

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

No

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