Symptom:
FCM-PARK LAMP RELAY OUTPUT CIRCUIT HIGH
POSSIBLE CAUSES
INTERMITTENT CONDITION
PARK LAMP RELAY
FRONT CONTROL MODULE
INTEGRATED POWER MODULE
TEST ACTION APPLICABILITY
1 Turn the ignition on.
With the DRBIIIt, clear all FCM DTC’s.
Turn the Park Lamps on.
With the DRBIIIt, read the DTC information.
Does the DRBIIIt read: Park Lamp Relay Output Circuit High?
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.
Remove and install a known good relay in place of the Park Lamp Relay.
Do the Park Lamps operate normally?
All
Yes → Replace the Park Lamp Relay.
Perform BODY VERIFICATION TEST - VER 1.
No → Go To 3
3 Turn the ignition off.
Remove the Park Lamp Relay from the IPM.
Remove the Front Control Module from the IPM.
Measure the voltage of the Park Lamp Relay Control circuit and ground.
Is the voltage above 1.0 volts?
All
Yes → Replace the Integrated Power Module.
Perform BODY VERIFICATION TEST - VER 1.
No → Replace the Front Control Module.
Perform BODY VERIFICATION TEST - VER 1.
341
EXTERIOR LIGHTING
To Next Page
Loading...
