Symptom:
FCM-FRONT FOG LAMP RELAY OUTPUT CIRCUIT LOW
POSSIBLE CAUSES
INTERMITTENT CONDITION
FOG LAMP RELAY
FRONT CONTROL MODULE
POWER DISTRIBUTION CENTER
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, clear all FCM DTC’s.
Turn the Front Fog Lamps on.
With the DRBIIIt, read the DTC information.
Does the DRBIIIt read: Front Fog Lamp Relay Output Circuit Low?
All
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.
2 Turn the ignition off.
Install a know good relay in place of the Fog Lamp Relay.
Turn the ignition on.
Actuate the Fog Lamps.
Do the Fog Lamps operate normally?
All
Yes → Go To 3
No → Replace the Fog Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
3 Turn the ignition off
Remove the Fog Lamp Relay.
Remove the FCM from the IPM.
Measure the resistance between ground and the Fog Lamp Relay control circuit in
the IPM.
Is the resistance below 5.0 ohms?
All
Yes → Replace the Power Distribution Center(PDC).
Perform BODY VERIFICATION TEST - VER 1.
No → Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
326
EXTERIOR LIGHTING
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