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Home >> Infiniti >> 2006 >> Q45 >> Repair and Diagnosis >> Accessories & Equipment >> Horns >> Wiper, Washer & Horn >> Front Wiper And Washer System (With Rain Sensor) >> Intermittent Wiper Operates, but There Is No Change in Intermittent Time between When Vehicle Is Stopped and Running

Intermittent Wiper Operates, but There Is No Change in Intermittent Time between When Vehicle Is Stopped and Running

  1. CHECK SYMPTOM 

    Check that speedometer in combination meter operates normally.

    OK or NG 

  2. CHECK FUNCTION 

    With CONSULT-II 

    1. Select "IVMS" on CONSULT-II. And select "WIPER" on "SELECT TEST ITEM" screen.
    2. Select "DATA MONITOR" on "SELECT DIAG MODE" screen.
    3. Make sure of the vehicle speed signal in "VHCL SPEED SE".
      MONITOR ITEM CONTENTS

      Monitor item [OPERATION] Contents
      VHCL SPEED SE "RUN/STOP"
      • "RUN" is displayed when the present vehicle speed is 5 km/h (3.10 MPH) and more.
      • "STOP" is displayed when the present vehicle speed is less than or equal to 2 km/h (1.24 MPH).
      Fig 1: CONSULT II DATA MONITOR Screen
      G04131383Courtesy of NISSAN MOTOR CO., U.S.A.

    Without CONSULT-II 

    GO TO 3.

    OK or NG 

    • OK: System is OK.
    • NG: GO TO 3.
  3. CHECK VEHICLE SPEED INPUT/OUTPUT 

    Start the engine, and check voltage between BCM harness connector M4 terminal 49 and ground, using an oscilloscope.

    Voltage waveform 

    [When vehicle speed is approx. 40 km/h (25 MPH)] 

    OK or NG 

    • OK: Replace BCM.
    • NG: GO TO 4.
      Fig 2: Checking Voltage Between BCM Harness Connector M4 Terminal And Ground, Using Oscilloscope
      G04131384Courtesy of NISSAN MOTOR CO., U.S.A.
  4. CHECK HARNESS CONTINUITY 
    1. Turn ignition switch OFF.
    2. Disconnect BCM connectors and combination meter connector.
    3. Check continuity between BCM harness connector M4 terminal 49 and combination meter harness connector M41 terminal 18.

      49 - 18: Continuity should exist. 

    4. Check continuity between BCM harness connector M4 terminal 49 and ground.

      49 - Ground: Continuity should not exist. 

    OK or NG 

    • OK: Replace combination meter.
    • NG: Repair harness or connector.
      Fig 3: Checking Continuity Between Combination Meter, BCM Connector And Ground
      G04131385Courtesy of NISSAN MOTOR CO., U.S.A.