FCM-Washer Pump Output Circuit Open

FCM-WASHER PUMP OUTPUT CIRCUIT OPEN

FCM - Washer Pump Output Circuit Open:

WHEN MONITORED
With the ignition on.

SET CONDITION
The FCM detects more than 5.0 volts on the Washer Pump Motor Control circuit.

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

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 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. WASHER PUMP MOTOR - FRONT
Turn the ignition off.
Disconnect the Washer Pump Motor harness connector.
Connect a jumper wire between cavity 1 and cavity 2.
Turn the ignition on.
With the DRBIII(R), read DTCs.

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

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

3. WASHER PUMP MOTOR GROUND CIRCUIT OPEN




Turn the ignition off.
Disconnect the Washer Pump Motor harness connector.
Measure the resistance between ground and the Washer Pump Motor Ground circuit.

Q: Is the resistance above 5.0 ohms?

YES: Repair the Washer Pump Motor Ground circuit for an open. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 4

4. WASHER PUMP MOTOR CONTROL CIRCUIT OPEN




Turn the ignition off.
Disconnect the Washer Pump Motor harness connector.
Disconnect the IPM C3 harness connector.
Measure the resistance of the Washer Pump Motor Control circuit.

Q: Is the resistance above 5.0 ohms?

YES: Repair the Washer Pump Motor Control circuit for an open. Perform BODY VERIFICATION TEST - VER 1. Body Verification Test
NO: Go To 5

5. POWER DISTRIBUTION CENTER
Turn the ignition off.
Disconnect the FCM from the IPM.
Disconnect the IPM C3 harness connector.
Measure the internal resistance of the IPM Washer Pump Motor Control circuit.

Q: Is the resistance above 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