FCM-Washer Pump Output Circuit Low

FCM-WASHER PUMP OUTPUT CIRCUIT LOW

FCM - Washer Pump Output Circuit Low:

WHEN MONITORED
With the ignition on.

SET CONDITION
The FCM detects less than 0.05 volts on the Washer Pump Motor Control circuit.

POSSIBLE CAUSES
- Washer pump motor-front
- Washer pump motor control circuit short to ground
- Front control module
- Power distribution center

1. INTERMITTENT CONDITION




Turn the ignition on.
With the DRBIII(R), clear all FCM DTC's.
Actuate the Wiper Washers.
With the DRBIII(R), read the DTC information.

Q: Does the DRBIII(R) read: Washer Pump Output Circuit Low?

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. WASHER PUMP MOTOR - FRONT




Turn the ignition off.
Disconnect the Washer Pump Motor - Front harness connector.
Turn the ignition on.
With the DRBIII(R), read DTCs.

Q: Does the DRBIII(R) display: Washer Pump Output Circuit Open?

YES: Replace the Washer Pump Motor - Front. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 3

3. WASHER PUMP MOTOR CONTROL CIRCUIT SHORT TO GROUND




Turn the ignition off.
Disconnect the Integrated Power Module C3 harness connector.
Disconnect the Washer Pump Motor harness connector.
Measure the resistance between ground and the Washer Pump Motor Control circuit.

Q: Is the resistance below 5.0 ohms?

YES: Repair the Washer Pump Motor Control circuit for a short to ground. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 4

4. POWER DISTRIBUTION CENTER
Turn the ignition off.
Disconnect the FCM from the IPM.
Disconnect the IPM C3 harness connector.
Measure the resistance between ground and the IPM Washer Pump Motor Control circuit terminal pin.

Q: Is the resistance below 5.0 ohms?

YES: Replace the Power Distribution Center (PDC). Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Replace the Front Control Module (FCM). Perform BODY VERIFICATION TEST - VER 1. Body Verification Test