B2311

WINDSHIELD / WINDOWGLASS: POWER WINDOW CONTROL SYSTEM: B2311: Power Window Motor Malfunction

DTC B2311 - Power Window Motor Malfunction

DESCRIPTION

The power window control system that is located in each door consists of a power window master switch, power window switches, regulators, and motors with an integrated ECU. A power window regulator motor is controlled by the ECU when the power window switch is operated (models with jam protection).
DTC B2311 is set if only of the ECUs for each power window regulator motor assembly malfunctions.
NOTE:
The power window control system uses a serial communication protocol (LIN) to communicate with the main body ECU. 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.
HINT:
- Initialization is required only when the power window regulator motor is replaced. However, replacing the motor may cause the motor gear to be engaged in a different position. This can cause a difference to exist between the current door glass position and the position memorized in the ECU. In this case, the jam protection function may work improperly. Return the system to the pre-initialized condition and reinitialize the system.
- To return the system to the pre-initialized condition: Disconnect the power window regulator motor connector during power window operation. This will return the motor to the pre-initialized condition.






INSPECTION PROCEDURE

PROCEDURE

1. POWER WINDOW CONTROL SYSTEM
(a) Initialize the power window regulator motor assemblies Programming and Relearning.
(b) Check that the power windows operate normally by opening and closing the windows.
OK:
The power windows operate normally.
NG -- REPLACE POWER WINDOW REGULATOR MOTOR
OK -- Continue to next step.
2. CHECK WHETHER PARTS HAVE BEEN INSTALLED CORRECTLY
(a) Power window components are installed correctly.
OK:
Power windows components are installed correctly.
HINT: When the power window components are installed correctly, the problem has been caused by battery disconnection while the engine switch is on (IG), improper installation of the power window components or the motor being overheated.

NG -- INSTALL PARTS CORRECTLY
OK -- END