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Home >> Jeep >> 2010 >> Commander Limited, 4WD >> Repair and Diagnosis >> Engine Performance >> Engine Control Systems >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> B231F-Front/Rear Washer Motor Control Circuit Low >> Diagnostic Test
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Diagnostic Test

  1. INTERMITTENT CONDITION 
    1. Turn the ignition on.
    2. Using the scan tool, clear all FCM DTCs.
    3. Turn the Washers on.
    4. Using the scan tool, read the Wiper/Washers DTCs.

      Does the scan tool read: B231F-FRONT/REAR WASHER MOTOR CONTROL CIRCUIT LOW?

      Yes 

      • Go to step  2

      No 

  2. WASHER PUMP MOTOR 
    Fig 1: Checking Washer Pump Motor Connector
    GC0120176Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the Washer Pump Motor connector.
    3. Turn the ignition on.
    4. Using the scan tool, read the DTCs.

      Does the scan tool read:B231F-FRONT/REAR WASHER MOTOR CONTROL CIRCUIT LOW?

      Yes 

      • Go to step  3

      No 

  3. (W10)/(W20) WASHER PUMP MOTOR CONTROL CIRCUITS SHORT TOGETHER 
    Fig 2: Checking Washer Pump Motor Control Circuits Short Together
    GC0120177Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the Washer Pump Motor harness connector.
    3. Disconnect the IPM C1 harness connector.
    4. Measure the resistance between the (W10) and (W20) Washer Pump Motor Control circuits.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Go to step  4
  4. (W10) WASHER PUMP MOTOR CONTROL CIRCUIT SHORT TO GROUND 
    Fig 3: Checking Washer Pump Motor Control Circuit Short To Ground
    GC0120178Courtesy of CHRYSLER LLC
    1. Measure the resistance between ground and the (W10) Washer Pump Motor Control circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      No 

      • Go to step  5
  5. (W20) WASHER PUMP MOTOR CONTROL CIRCUIT SHORT TO GROUND 
    Fig 4: Checking Washer Pump Motor Control Circuit Short To Ground
    GC0120179Courtesy of CHRYSLER LLC
    1. Measure the resistance between ground and the (W20) Washer Pump Motor Control circuit.

      Is the resistance below 5.0 Ohms?

      Yes 

      No