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DTC B2312 Power Window Switch Malfunction: Description

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

This DTC is output when the ECU built into the regulator motor determines that the power window switch is stuck.

HINT:

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.

Master Switch

DTC TROUBLE DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
B2312	Power window master switch stuck	Power window master switch Power window master switch held in same position for more than 20 seconds

D-Door Motor

DTC TROUBLE DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
B2312	Power window master switch (for driver side) stuck	Power window master switch (for driver side) Power window regulator motor assembly Wire harness or connector Power window master switch held in same position for more than 20 seconds

P-Door Motor

DTC TROUBLE DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
B2312	Power window switch stuck	Power window switch (for front passenger side) Power window regulator motor assembly Wire harness or connector Power window switch held in same position for more than 20 seconds

RL-Door Motor

DTC TROUBLE DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
B2312	Power window switch stuck	Power window switch (for rear LH side) Power window regulator motor assembly Wire harness or connector Power window switch held in same position for more than 20 seconds

RR-Door Motor

DTC TROUBLE DETECTION CONDITION CHART

DTC No.	DTC Detection Condition	Trouble Area
B2312	Power window switch stuck	Power window regulator switch (for rear RH side) Power window regulator motor assembly Wire harness or connector Power window switch held in same position for more than 20 seconds