POWER WINDOW CONTROL SYSTEM, Diagnostic DTC:B2311

DTC Code DTC Name
B2311 Power Window Motor Malfunction

DESCRIPTION

The power window regulator motor assembly is driven by operating the power window switch. The power window regulator motor assembly consists of a motor, regulator and ECU.

This DTC is output when the power window regulator motor has a malfunction, or the ECU built into the power window regulator motor determines that the fully closed window position has deviated approximately 20 mm (0.787 in.) or more from the normal position.

Tech Tips

This DTC may occur for all the windows.

Note


  • When the power window regulator motor is reinstalled or replaced, the power window control system must be initialized.

  • After a door glass or a door glass run has been replaced, the jam protection function may operate unexpectedly when the AUTO UP function is used. In such cases, the AUTO UP function can be resumed by repeating the following operation at least 5 times:


    1. Close the power window by fully pulling up the power window switch and holding it in the AUTO UP position.

    2. Open the power window by fully pushing down the switch.

Power window regulator motor (for Driver side):
DTC Code DTC Detection Condition Trouble Area
B2311

  • When either condition below is met:


    1. Power window regulator motor malfunctions

    2. When ECU in power window regulator motor determines that fully closed window position has deviated approx. 20 mm (0.787 in.) or more from normal position

  • Battery disconnection when power switch ON (IG)

  • Power window regulator motor

  • Incorrect installation of power window components

  • Overheated power window regulator motor
Power window regulator motor (for Front passenger side):
DTC Code DTC Detection Condition Trouble Area
B2311

  • When either condition below is met:


    1. Power window regulator motor malfunctions

    2. When ECU in power window regulator motor determines that fully closed window position has deviated approx. 20 mm (0.787 in.) or more from normal position

  • Battery disconnection when power switch ON (IG)

  • Power window regulator motor

  • Incorrect installation of power window components

  • Overheated power window regulator motor
Power window regulator motor (for Rear LH):
DTC Code DTC Detection Condition Trouble Area
B2311

  • When either condition below is met:


    1. Power window regulator motor malfunctions

    2. When ECU in power window regulator motor determines that fully closed window position has deviated approx. 20 mm (0.787 in.) or more from normal position

  • Battery disconnection when power switch ON (IG)

  • Power window regulator motor

  • Incorrect installation of power window components

  • Overheated power window regulator motor
Power window regulator motor (for Rear RH):
DTC Code DTC Detection Condition Trouble Area
B2311

  • When either condition below is met:


    1. Power window regulator motor malfunctions

    2. When ECU in power window regulator motor determines that fully closed window position has deviated approx. 20 mm (0.787 in.) or more from normal position

  • Battery disconnection when power switch ON (IG)

  • Power window regulator motor

  • Incorrect installation of power window components

  • Overheated power window regulator motor

INSPECTION PROCEDURE

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (POWER WINDOW)


    1. Select the Active Test, use the intelligent tester to generate a control command, and then check that the power window regulator motor UP/DOWN.

      CAUTION:

      Be careful to avoid injuries as this test causes vehicle parts to move. During the Active Test, the jam protection function does not operate.

      D-Door Motor:
      Item Test Part Control Range Diagnostic Note
      Power window Driver side power window UP or OFF (OFF) -
      Power window Driver side power window DOWN or OFF (OFF) -
      P-Door Motor:
      Item Test Part Control Range Diagnostic Note
      Power window Front passenger side power window UP or OFF (OFF) -
      Power window Front passenger side power window DOWN or OFF (OFF) -
      RL-Door Motor:
      Item Test Part Control Range Diagnostic Note
      Power window Rear LH side power window UP or OFF (OFF) -
      Power window Rear LH side power window DOWN or OFF (OFF) -
      RR-Door Motor:
      Item Test Part Control Range Diagnostic Note
      Power window Rear RH side power window UP or OFF (OFF) -
      Power window Rear RH side power window DOWN or OFF (OFF) -
      OK
      Power window operates normally.
      Result:
      Result Proceed to
      OK A
      NG (Front LH side power window) B
      NG (Front RH side power window) C
      NG (Rear LH side power window) D
      NG (Rear RH side power window) E

    B

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here

    C

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here

    D

    REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here

    E

    REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here

    A

  2. PERFORM INITIALIZATION


    1. Initialize the power window regulator motor Click here.

    2. Check that the power window operates normally by opening and closing the window.

      OK
      Power window operates normally.
      Result:
      Result Proceed to
      OK A
      NG (Front LH side power window) B
      NG (Front RH side power window) C
      NG (Rear LH side power window) D
      NG (Rear RH side power window) E

    B

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here

    C

    REPLACE FRONT POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here

    D

    REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY LH Click here

    E

    REPLACE REAR POWER WINDOW REGULATOR MOTOR ASSEMBLY RH Click here

    A

  3. CHECK WHETHER PARTS HAVE BEEN INSTALLED CORRECTLY


    1. Check that the power window components are installed correctly.

      OK
      Power window components are installed correctly.

      Tech Tips

      When the power window components are installed correctly, the problem has been caused by battery disconnection while the power switch is ON (IG) or the motor being overheated.


    NG

    INSTALL PARTS CORRECTLY

    OK

    END