B16FC

B16FC-FRONT RIGHT FOG LAMP CONTROL CIRCUIT LOW





For a complete wiring diagram, refer to the Wiring Information.

Theory of Operation

The Totally Integrated Power Module (TIPM) receives a bus message requesting fog lamp illumination. When this bus message is received, the TIPM provides a voltage output through the left and right fog lamp control output circuits. Separate ground circuits are used for the Left and Right Front Fog Lamps. For additional information on the Front Fog Lamps operation, Exterior Lamps - Operation.

- When Monitored:
With the fog lamps active.

- Set Condition:
When the Totally Integrated Power Module (TIPM) detects a low condition on the (L90) Right Front Fog Lamp Control circuit.





1. INTERMITTENT CONDITION
1. Turn the ignition on.
2. With the scan tool, clear all DTCs.
3. Turn the Fog Lamps on.
4. With the scan tool, read DTCs.

Does the scan tool display DTC: B16FC-FRONT RIGHT FOG LAMP CONTROL CIRCUIT LOW?

Yes

- Go To 2

No

- Test complete, the condition or conditions that originally set this DTC are not present at this time. Using the wiring diagrams as a guide, check all related splices and connectors for signs of water intrusion, corrosion, pushed out or bent terminals, and correct pin tension.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

2. ATTEMPT TO SET THE OPPOSITE DTC
1. Turn the Fog Lamps off.
2. Turn the ignition off.
3. Disconnect the Right Front Fog Lamp harness connector.
4. Turn the ignition on.
5. Turn the Fog Lamps on.
6. With the scan tool, read DTCs.

Does the scan tool display DTC: B16FD-FRONT RIGHT FOG LAMP CONTROL CIRCUIT HIGH?

Yes

- Replace the Right Front Fog Lamp Bulb. Fog Lamp Bulb - Removal
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Go To 3

3. CHECK THE (L90) RIGHT FRONT FOG LAMP CONTROL CIRCUIT FOR A SHORT TO GROUND




1. Turn the ignition off.
2. Disconnect the TIPM C4 harness connector.
3. Measure the resistance between ground and the (L90) Right Front Fog Lamp Control circuit.

Is the resistance above 10k Ohms?

Yes

- Replace the Totally Integrated Power Module (TIPM). Totally Integrated Power Module (TIPM) - Removal.
- Perform the BODY VERIFICATION TEST. Body Verification Test.

No

- Repair the short to ground in the (L90) Right Front Fog Lamp Control circuit.
- Perform the BODY VERIFICATION TEST. Body Verification Test.