FCM-Front Fog Lamp Relay Output Circuit High

FCM-FRONT FOG LAMP RELAY OUTPUT CIRCUIT HIGH

FCM - Front Fog Lamp Relay Output Circuit High:

WHEN MONITORED
With the ignition on

SET CONDITION
The FCM detects a HIGH condition

POSSIBLE CAUSES
- Fog lamp relay
- Integrated power module
- Front control module

1. INTERMITTENT CONDITION




Turn the ignition on.
With the DRBIII(R), clear all FCM DTC's.
Turn the Fog Lamps on.
With the DRBIII(R), read the DTC information.

Q: Does the DRBIII(R) read: Front Fog Lamp Relay Output Circuit High?

YES: Go To 2
NO: 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

2. FOG LAMP RELAY




Turn the ignition off.
Remove and install a known good relay in place of the Fog Lamp Relay.

Q: Do the Fog Lamps operate normally?

YES:Replace the Fog Lamp Relay. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO:Go To 3

3. FRONT CONTROL MODULE
Turn the ignition off.
Remove the Fog Lamp Relay from the IPM.
Remove the Front Control Module from the IPM.
Measure the voltage of the Fog Lamp Relay Control circuit and ground.

Q: Is the voltage above 1.0 volts?

YES:Replace the Integrated Power Module. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the Front Control Module. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test