FCM-Park Lamp Relay Output Circuit Open

FCM-PARK LAMP RELAY OUTPUT CIRCUIT OPEN

FCM - Park Lamp Relay Output Circuit Open:

WHEN MONITORED
With the ignition on

SET CONDITION
The FCM detects an open condition

POSSIBLE CAUSES
- Park lamp relay output circuit open
- Missing relay
- Park lamp relay
- Front control module

1. INTERMITTENT CONDITION




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

Q: Does the DRBIII(R) read: Park Lamp Relay Output Circuit Open?

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. MISSING RELAY
Turn the ignition off.
Check the IPM to make certain the Park Lamp Relay is present.

Q: Is the Park Lamp Relay present?

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

3. PARK LAMP RELAY




Turn the ignition off.
Install a known good relay in place of the park lamp relay.
Turn the Park Lamps On.

Q: Do the Park Lamps operate normally?

YES: Replace the Park Lamp Relay. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO:Go To 4

4. FRONT CONTROL MODULE




Turn the ignition off
Remove the Park Lamp Relay.
Measure the voltage of the Fused B+ circuit of the park lamp relay.

Q: Is the voltage above 10 volts?

YES: Replace the Front Control Module. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Repair the Park Lamp Relay Output Circuit. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test