B2311

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: B2311: Driver Door Motor Malfunction
B2311 - Driver Door Motor Malfunction

DESCRIPTION

The driver door power window regulator motor is driven by operating the power window regulator master switch. The driver door power window regulator motor has motor, regulator, and ECU functions.

DTC B2311 is output when the driver door 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 (0.79 in.) or more from the normal position.

NOTICE:
- The power window control system uses a multiplex communication system (LIN). Inspect the communication function by following HOW TO PROCEED WITH TROUBLESHOOTING. Troubleshoot the power window control system after confirming that the communication system is functioning properly.
- When the power window regulator motor assembly (on the driver side) 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.





INSPECTION PROCEDURE

NOTICE:
When using Techstream to troubleshoot the LIN communication line: Connect Techstream to the vehicle, and turn a courtesy light switch on and off at 1.5 second intervals until communication between the tester and vehicle begins.

PROCEDURE

1. PERFORM ACTIVE TEST USING TECHSTREAM (POWER WINDOW UP/DOWN)

(a) Perform the Active Test, using Techstream to generate a control command, and then check the power window operation.

D-Door Motor





OK:

Driver side power window operates normally.

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.

NG -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side)
OK -- Continue to next step.

2. INITIALIZE POWER WINDOW CONTROL SYSTEM

(a) Initialize the power window regulator motor assembly (on the driver side) Programming and Relearning.

(b) Check that the power window operates normally by opening and closing the window.

OK:

Driver side power window operates normally.

NG -- REPLACE POWER WINDOW REGULATOR MOTOR ASSEMBLY (for Driver Side)
OK -- Continue to next step.

3. CHECK WHETHER PARTS HAVE BEEN INSTALLED CORRECTLY

(a) Check that the power window components (on the driver side) are installed correctly.

OK:

Power window components (on driver side) are installed correctly.

HINT
When the power window components are installed correctly, the problem has been caused by battery disconnection while the ignition switch is ON, improper installation of the power window components or the motor being overheated.

NG -- INSTALL PARTS CORRECTLY

OK -- END