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Home >> Jeep >> 2009 >> Commander Overland, RWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Wiper/Washer Systems >> Front Control Module (FCM) - Electrical Diagnostics >> DTC Troubleshooting >> B2320-Front/Rear Washer Motor Control Circuit High >> Diagnostic Test
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Diagnostic Test

  1. INTERMITTENT CONDITION 
    1. Turn the ignition on.
    2. With the Scan Tool, clear all FCM DTC's.
    3. Turn the Washers on.
    4. With the Scan Tool, read the Wiper/Washers DTC's.

      Does the Scan Tool read: B2320-FRONT/REAR WASHER MOTOR CONTROL CIRCUIT HIGH?

      Yes 

      • Go to step  2

      No 

  2. (W10) WASHER PUMP MOTOR CONTROL CIRCUIT SHORT TO VOLTAGE 
    Fig 1: Checking Washer Pump Motor Control Circuit Short To Voltage
    GC0120192Courtesy of CHRYSLER LLC
    1. Turn the ignition off.
    2. Disconnect the IPM C1 harness connector.
    3. Disconnect the Washer Pump Motor harness connector.
    4. Turn the ignition on.
    5. Measure the voltage of the (W10) Washer Pump Motor Control circuit.

      Is the voltage above 5.0 volts?

      Yes 

      No 

      • Go to step  3
  3. (W20) WASHER PUMP MOTOR CONTROL CIRCUIT SHORT TO VOLTAGE 
    Fig 2: Checking Washer Pump Motor Control Circuit Short To Voltage
    GC0120193Courtesy of CHRYSLER LLC
    1. Measure the Voltage of the (W20) Washer Pump Motor Control circuit.

      Is the voltage above 5.0 volts?

      Yes 

      No