Fcm-Wiper Park Switch Input Performance - Dodge Ram 2004 Service Manual

Symptom:

FCM-WIPER PARK SWITCH INPUT PERFORMANCE

INTERMITTENT CONDITION
WIPER MOTOR PARK SWITCH GROUND CIRCUIT OPEN
WIPER MOTOR
WIPER PARK SWITCH SENSE CIRCUIT SHORT TO VOLTAGE
WIPER PARK SWITCH SENSE CIRCUIT SHORT TO GROUND
WIPER PARK SWITCH SENSE CIRCUIT OPEN
POWER DISTRIBUTION CENTER
FRONT CONTROL MODULE
TEST
1 Turn the ignition on.
With the DRBIII , clear all FCM DTC's.
Turn the Wipers ON then OFF.
With the DRBIII , read the DTC information.
Does the DRBIII read: Wiper Park Switch Input Performance?
Yes → Go To 2
→ The condition that caused the symptom is currently not present.
No
2 Turn the ignition off.
Disconnect the Wiper Motor harness connector.
Measure the resistance between ground and the Wiper Motor Park Switch Ground
circuit.
Is the resistance above 5.0 ohms?
Yes → Repair the Wiper Motor Park Switch Ground circuit for an open.
→ Go To 3
No
3 Turn the ignition off.
Disconnect the Wiper Motor harness connector.
Measure the internal resistance of the Wiper Motor between terminal pin 2 and pin
3.
Is the resistance above 5.0 ohms?
Yes → Replace the Wiper Motor - Front in accordance with the Service
→ Go To 4
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.
Information.
Perform BODY VERIFICATION TEST - VER 1.
WINDSHIELD WIPER & WASHER
539
APPLICABILITY
All
All
All