POWER WINDOW CONTROL SYSTEM, Diagnostic DTC:B2311

DTC Code DTC Name
B2311 Power Window Motor Malfunction

DESCRIPTION

The power window regulator motor is operated by the power window regulator master switch assembly or power window regulator switch assembly. The power window regulator motor assembly has motor, regulator and ECU functions.

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

Tech Tips

DTC B2311 can be stored in each power window regulator motor assembly (power window ECU).

D-Door Motor (Power Window Regulator Motor Assembly (for Driver Side))
DTC No. DTC Detection Condition Trouble Area
B2311

  • Either condition is met:


    1. Power window regulator motor assembly malfunctions

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

  • Battery disconnected when power switch on (IG)

  • Front door window regulator assembly (for driver side)

  • Incorrect installation of power window components

  • Overheated power window regulator motor assembly
P-Door Motor (Power Window Regulator Motor Assembly (for Front Passenger Side))
DTC No. DTC Detection Condition Trouble Area
B2311

  • Either condition is met:


    1. Power window regulator motor assembly malfunctions

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

  • Battery disconnected when power switch on (IG)

  • Front door window regulator assembly (for front passenger side)

  • Incorrect installation of power window components

  • Overheated power window regulator motor assembly
RL-Door Motor (Power Window Regulator Motor Assembly (for Rear LH Side))
DTC No. DTC Detection Condition Trouble Area
B2311

  • Either condition is met:


    1. Power window regulator motor assembly malfunctions

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

  • Battery disconnected when power switch on (IG)

  • Rear door window regulator assembly (for LH side)

  • Incorrect installation of power window components

  • Overheated power window regulator motor assembly
RR-Door Motor (Power Window Regulator Motor Assembly (for Rear RH Side))
DTC No. DTC Detection Condition Trouble Area
B2311

  • Either condition is met:


    1. Power window regulator motor assembly malfunctions

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

  • Battery disconnected when power switch on (IG)

  • Rear door window regulator assembly (for RH side)

  • Incorrect installation of power window components

  • Overheated power window regulator motor assembly

INSPECTION PROCEDURE

Note


  • When the door window regulator assembly 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 reinitialized by repeating the following operation at least 5 times:


    1. Close the power window by fully pulling up the power window regulator master switch assembly or power window regulator switch assembly and holding it in the auto up position.

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

PROCEDURE


  1. PERFORM ACTIVE TEST USING INTELLIGENT TESTER (APPLICABLE LOCATION)


    1. Connect the intelligent tester to the DLC3.

    2. Turn the power switch on (IG) .

    3. Turn the intelligent tester on.

    4. Enter the following menus: Body / (desired system) / Active Test.

      Tech Tips

      Perform the Active Test for the power window regulator motor assembly that has DTC B2311 stored in its ECU.

    5. Perform the Active Test according to the display on the intelligent tester.

      CAUTION:

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

      D-Door Motor (Power Window Regulator Motor Assembly (for Driver Side))
      Tester Display Test Part Control Range Diagnostic Note
      Power Window Power window OFF / UP / DOWN -
      P-Door Motor (Power Window Regulator Motor Assembly (for Front Passenger Side))
      Tester Display Test Part Control Range Diagnostic Note
      Power Window Power window OFF / UP / DOWN -
      RL-Door Motor (Power Window Regulator Motor Assembly (for Rear LH Side))
      Tester Display Test Part Control Range Diagnostic Note
      Power Window Power window OFF / UP / DOWN -
      RR-Door Motor (Power Window Regulator Motor Assembly (for Rear RH Side))
      Tester Display Test Part Control Range Diagnostic Note
      Power Window Power window OFF / UP / DOWN -
      OK
      Each power window motor operates.
      Result
      Result Proceed to
      OK A
      NG (Driver side power window) B
      NG (Front passenger side power window) C
      NG (Rear LH side power window) D
      NG (Rear RH side power window) E

    B

    REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (for Driver Side) Click here

    C

    REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (for Front Passenger Side) Click here

    D

    REPLACE REAR DOOR WINDOW REGULATOR ASSEMBLY (for LH Side) Click here

    E

    REPLACE REAR DOOR WINDOW REGULATOR ASSEMBLY (for RH Side) Click here

    A

  2. PERFORM INITIALIZATION (APPLICABLE LOCATION)


    1. Initialize the power window regulator motor assembly Click here.

      Tech Tips

      Initialize the power window regulator motor assembly that has DTC B2311 stored in its ECU.


    NEXT

  3. CHECK POWER WINDOW CONTROL SYSTEM (APPLICABLE LOCATION)


    1. Check that the power window operates normally by opening and closing the window Click here.

      Tech Tips

      Check the power window operation of the window where DTC B2311 has been stored.

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

    B

    REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (for Driver Side) Click here

    C

    REPLACE FRONT DOOR WINDOW REGULATOR ASSEMBLY (for Front Passenger Side) Click here

    D

    REPLACE REAR DOOR WINDOW REGULATOR ASSEMBLY (for LH Side) Click here

    E

    REPLACE REAR DOOR WINDOW REGULATOR ASSEMBLY (for RH Side) Click here

    A

  4. 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


      • Check the installation condition of the components for the window where DTC B2311 has been stored.

      • When the power window components are installed correctly, the problem has probably occurred because the battery was disconnected while the power switch was on (IG), power window components are installed improperly or the motor overheated.


    NG

    INSTALL PARTS CORRECTLY

    OK

    END