Fcm-Park Lamp Relay Output Circuit Low - Dodge Ram 2004 Service Manual

EXTERIOR LIGHTING
Symptom:

FCM-PARK LAMP RELAY OUTPUT CIRCUIT LOW

INTERMITTENT CONDITION
PARK LAMP RELAY
FRONT CONTROL MODULE
POWER DISTRIBUTION CENTER
TEST
1 Turn the ignition on.
With the DRBIII , clear all FCM DTC's.
Turn the Park Lamps on.
With the DRBIII , read the DTC information.
Does the DRBIII read: Park Lamp Relay Output Circuit Low?
Yes → Go To 2
→ The condition that caused the symptom is currently not present.
No
2 Turn the ignition off.
Install a know good relay in place of the Park Lamp Relay.
Turn the ignition on.
Actuate the Park Lamps.
Do the Park Lamps operate normally?
Yes → Go To 3
→ Replace the Park Lamp Relay.
No
3 Turn the ignition off
Remove the Park Lamp Relay.
Remove the FCM from the IPM.
Measure the resistance between ground and the Park Lamp Relay control circuit in
the IPM.
Is the resistance below 5.0 ohms?
Yes → Replace the Power Distribution Center(PDC).
→ Replace the Front Control Module.
No
POSSIBLE CAUSES
ACTION
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.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
Perform BODY VERIFICATION TEST - VER 1.
342
APPLICABILITY
All
All
All