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Power Window Control System - Diagnosis: Pre-Check

  1. INSPECT POWER WINDOW OPERATION 

    HINT:

    The initial condition that the customizing function by the hand-held tester is not chosen is shown.

    1. Standard: 
    POWER WINDOW OPERATION CHART

    Power window operation Ignition switch ON Ignition switch OFF
    Operative after key-OFF
    Ignition switch OFF Inoperative after key-OFF
    Manual UP Operative Jam protection function operative Inoperative
    Manual DOWN Operative Operative Inoperative
    AUTO UP Jam protection function operative Jam protection function operative Inoperative
    AUTO DOWN Operative Operative Inoperative
    UP interlocked with key operation Inoperative Jam protection function operative Jam protection function operative
    DOWN interlocked with key operation Inoperative Operative Operative
    UP interlocked with wireless operation Inoperative Inoperative Inoperative
    DOWN interlocked with wireless operation Inoperative Operative Operative
  2. 2: INSPECT POWER WINDOW FAIL-SAFE FUNCTION 
    1. When an abnormality is detected in the limit switch and pulse sensor for operating the jam protection function (DTC: B1231/31, B1232/32, B1233/33, B1234/34), the following power window operations will be prohibited for fail-safe.

      Standard: 

    POWER WINDOW OPERATION CHART

    Power window operation Ignition switch ON Ignition switch OFF Operative after key-OFF Ignition switch OFF Inoperative after key-OFF
    Manual UP Operative Operation prohibited -
    Manual DOWN Operative Operation prohibited -
    AUTO UP Operation prohibited Operation prohibited -
    AUTO DOWN Operation prohibited Operation prohibited -
    UP interlocked with key operation - Operation prohibited Operation prohibited
    DOWN interlocked with key operation - Operation prohibited Operation prohibited
    UP interlocked with wireless operation - Operation prohibited Operation prohibited
    DOWN interlocked with wireless operation - Operation prohibited Operation prohibited

    HINT:

    In case of normal limit switch, prohibition (fail-safe function) will be cancelled by fully opening the door glass or fully-closed by manual operation then AUTO operation will be possible.

  3. INSPECT ECU DATA MONITOR WITH HAND-HELD TESTER 
    1. Check the driver (D) and passenger (P) door ECU condition by the ECU data monitor.

      Standard: 

    D-Door ECU 

    D-DOOR ECU DIAGNOSTIC CHART

    Item Inspecting condition Standard value
    Driver's side power window AUTO switch Pressed --> Not pressed ON/OFF
    Jam protection limit switch Power window full-open --> full-closed ON / OFF
    Passenger's side power window remote AUTO Pressed --> Not pressed ON / OFF

    P-Door ECU 

    P-DOOR ECU DIAGNOSTIC CHART

    Item Inspecting condition Standard value
    Passenger's side power window AUTO switch Pressed --> Not pressed ON/OFF
    Jam protection limit switch Power window full-open --> full-closed ON / OFF

    D and P-Door ECU (Jam protection threshold) 

    D AND P-DOOR ECU (JAM PROTECTION THRESHOLD) DIAGNOSTIC CHART

    Item Inspecting condition Standard value
    Window full-closed position --> 1 / 4 open position Power window is going UP by manual operation OK/CAUTION*
    Window 1 / 4 open position --> 2 / 4 open position Power window is going UP by manual operation OK/CAUTION*
    Window 2 / 4 open position --> 3 / 4 open position Power window is going UP by manual operation OK/CAUTION*
    Window 3/4 open position --> full-open position Power window is going UP by manual operation OK/CAUTION*

    HINT:

    *: CAUTION is indicated when something caught in the window is detected.

  4. INSPECT ACTIVE TEST WITH HAND-HELD TESTER 
    1. Check the driver's and passenger's power window operation by the active test.

      Standard: 

    D and P-Door ECU 

    D AND P-DOOR ECU DIAGNOSTIC CHART

    Item Operation
    Power window UP/DOWN
  5. INSPECT CUSTOMIZING FUNCTION (REFERENCE): 
    1. Select the following controls on the power window control system.

      Standard: 

    D-Door ECU 

    D-DOOR ECU DIAGNOSTIC CHART

    Item Setting
    Power window UP interlocked with door operation With/Without function
    Power window DOWN interlocked with door operation With / Without function