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Diagnosis Procedure

  1. CHECK CAMERA SWITCH INPUT SIGNAL OF DISPLAY CONTROL UNIT 
    1. Turn ignition switch ON.
    2. Check the voltage between display control unit harness connector and ground.
      Terminals Condition Voltage (Approx.)
      (+) (-)
      Display control unit
      Connector Terminal
      M100 26 Ground Camera switch ON 0 - 2.5 V
      OFF 3.0 V

      Is the inspection result normal? 

      YES: Replace display control unit. Refer to "REMOVAL AND INSTALLATION ".

      NO: GO TO 2.

  2. CHECK CAMERA SWITCH INPUT SIGNAL OF INTEGRAL SWITCH 

    Check the voltage between integral switch harness connector and ground.

    Terminals Condition Voltage (Approx.)
    (+) (-)
    Integral switch
    Connector Terminal
    M1 19 Ground Camera switch ON 0 - 2.5 V
    OFF 3.0 V

    Is the inspection result normal? 

    YES: GO TO 3.

    NO: GO TO  5.

  3. CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF DISPLAY CONTROL UNIT FOR OPEN 
    1. Turn ignition switch OFF.
    2. Disconnect display control unit harness connector and integral switch harness connector.
    3. Check the continuity between display control unit harness connector and integral switch harness connector.
      Display control unit Integral switch Continuity
      Connector Terminal Connector Terminal
      M100 26 M1 19 Existed

      Is the inspection result normal? 

      YES: GO TO 4.

      NO: Repair or replace malfunctioning parts.

  4. CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF DISPLAY CONTROL UNIT FOR SHORT 

    Check the continuity between display control unit harness connector and ground.

    Display control unit Ground Continuity
    Connector Terminal
    M100 26 Not existed

    Is the inspection result normal? 

    YES: Replace integral switch. Refer to "REMOVAL AND INSTALLATION ".

    NO: Repair or replace malfunctioning parts.

  5. CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF INTEGRAL SWITCH FOR OPEN 
    1. Turn ignition switch OFF.
    2. Disconnect integral switch harness connector and multifunction switch harness connector.
    3. Check the continuity between integral switch harness connector and multifunction switch harness connector.
      Integral switch Multifunction switch Continuity
      Connector Terminal Connector Terminal
      M3 39 M55 10 Existed

      Is the inspection result normal? 

      YES: GO TO 6.

      NO: Repair or replace malfunctioning parts.

  6. CHECK CAMERA SWITCH INPUT SIGNAL CIRCUIT OF INTEGRAL SWITCH FOR SHORT 

    Check the continuity between integral switch harness connector and ground.

    Integral switch Ground Continuity
    Connector Terminal
    M3 39 Not existed

    Is the inspection result normal? 

    YES: GO TO 7.

    NO: Repair or replace malfunctioning parts.

  7. CHECK MULTIFUNCTION SWITCH 

    Check multifunction switch. Refer to "COMPONENT INSPECTION ".

    Is the inspection result normal? 

    YES: INSPECTION END

    NO: Replace multifunction switch. Refer to "REMOVAL AND INSTALLATION ".

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