POWER WINDOW CONTROL SYSTEM > FAIL-SAFE CHART

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POWER WINDOW OPERATION IN FAIL-SAFE MODE

  1. The power window control system prohibits the following power window operations when the pulse sensor for the jam protection function has problems and the window position or the learned value is abnormal.

    HINT:
    If the pulse sensor built into the power window regulator motor malfunctions, the power window control system enters fail-safe mode.

    Power Window Regulator Master Switch Assembly 
    Power Window Operation
    		Condition
    Ignition switch ON (IG)
    		Ignition switch off
    (Key-off operation permitted)
    		Ignition switch off
    (Key-off operation prohibited)
    Manual up (Driver door window)
    		X
    		X
    		-
    Manual down (Driver door window)
    		○
    		X
    		-
    Auto up (Driver door window)
    (hold switch at auto up position)
    		○*
    		X
    		-
    Auto up (Driver door window)
    		X
    		X
    		-
    Auto down (Driver door window)
    		X
    		X
    		-

    HINT:
    1. ○: Operates
    2. X: Operation prohibited
    3. *: Operates in manual mode without jam protection

    1. Power window regulator master switch LED control

      HINT:
      During normal operation (fail-safe is not operating), or during fail-safe mode when there is a pulse sensor malfunction or the window position or learned value is abnormal, the LED illuminates as shown in the illustration.

      1. For driver door:


        B179628E35

    2. Fail-safe deactivation condition

      1. When the pulse sensor is normal, to deactivate fail-safe mode, pull up the power window switch to the auto up position and hold it for at least 1 second to fully close the window from the fully open position. As a result, the auto up/down function will return.

  2. Initialization failure

    HINT:
    During initialization of the power window regulator motor ECU, when the window position or initialization complete status cannot be properly read from the EEPROM, the power window control system prohibits operation as follows:

    Power Window Regulator Master Switch Assembly 
    Power Window Operation
    		Condition
    Ignition switch ON (IG)
    		Ignition switch off
    (Key-off operation permitted)
    		Ignition switch off
    (Key-off operation prohibited)
    Manual up (Driver door window)
    		X
    		X
    		-
    Manual down (Driver door window)
    		○
    		X
    		-
    Auto up (Driver door window)
    (hold switch at auto up position)
    		○*
    		X
    		-
    Auto up (Driver door window)
    		X
    		X
    		-
    Auto down (Driver door window)
    		X
    		X
    		-

    HINT:
    1. ○: Operates
    2. X: Operation prohibited
    3. *: Operates in manual mode without jam protection

    1. Power window regulator master switch LED control

      HINT:
      During initialization of the power window regulator motor ECU, when the window position or initialization complete status cannot be properly read from the EEPROM during fail-safe mode, the LED illuminates as shown in the illustration.

      1. For driver door:


        B179640E28

  3. LIN communication failure

    HINT:
    If the LIN communication line malfunctions (communication stop), the power window control system prohibits operation as follows:

    Power Window Regulator Master Switch Assembly 
    Power Window Operation
    		Condition
    Ignition switch ON (IG)
    Manual up
    		○*
    Manual down
    		○
    Auto up (hold switch at auto up position)
    		○*
    Auto up
    		○*
    Auto down
    		○

    HINT:
    1. ○: Operates
    2. *: Jam protection can operate.

  4. LIN communication failure and pulse sensor failure

    HINT:
    If the LIN communication line malfunctions (communication stop) and the pulse sensor for the jam protection function has problems, the power window control system prohibits operation as follows:

    Power Window Regulator Master Switch Assembly 
    Power Window Operation
    		Condition
    Always
    Manual up
    		X
    Manual down
    		X
    Auto up (hold switch at auto up position)
    		X
    Auto up
    		X
    Auto down
    		X

    HINT:
    1. X: Operation prohibited
    2. When the jam protection function does not operate due to the LIN communication failure, the manual up and auto up functions will not operate.

  5. LIN communication failure and abnormal window position learned value or initialization failure

    HINT:
    If the LIN communication line malfunctions (communication stop) and the window position or the learned value is abnormal, the power window control system prohibits operation as follows:

    Power Window Regulator Master Switch Assembly 
    Power Window Operation
    		Condition
    Always
    Manual up
    		○*
    Manual down
    		○
    Auto up (hold switch at auto up position)
    		○*
    Auto up
    		X
    Auto down
    		X

    HINT:
    1. ○: Operates
    2. X: Operation prohibited
    3. *: Jam protection can operate and window reverses upon reaching the fully closed position.