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.
DTC No. DTC Detection Condition Trouble Area B2311 When either of the following is met: - The power window regulator motor malfunctions
- When the ECU in a power widow regulator motor determines that the fully closed window position has deviated approximately 20 mm (0.79 in.) or more from the normal position
- Battery disconnection when the engine switch is on (IG)
- Power window regulator motor
- Incorrect installation of power window components
- Overheated power window regulator motor