DTC B2312 Power Window Switch Malfunction: Description

The power window regulator motor assembly 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 ECU built into the regulator motor determines that the power window regulator master switch assembly or power window regulator switch assembly is stuck.

HINT:

DTC B2312 can be stored in the power window regulator master switch assembly and in each power window regulator motor assembly (power window ECU).

Master Switch (Power Window Regulator Master Switch Assembly)

DTC DETECTION CONDITION CHART

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

D-Door Motor (Power Window Regulator Motor Assembly (for Driver Side))

DTC DETECTION CONDITION CHART

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

P-Door Motor (Power Window Regulator Motor Assembly (for Front Passenger Side))

DTC DETECTION CONDITION CHART

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