B2312
DTC B2312 Driver's Seat SW ON StuckDTC B2315 Passenger's Seat SW ON Stuck
Circuit Description
Operating the power window regulator master switch ASSY and the power window regulator switch ASSY drives the power window regulator motor ASSY RH (driver's seat) and power window regulator motor ASSY LH (passenger's seat). The power window regulator motor ASSY RH (driver's seat) and power window regulator motor ASSY LH (passenger's seat) have motor function and regulator function.
B2312 and B2315 is generated when ECM determines that the power window regulator master switch ASSY or power window regulator switch ASSY is stuck continuously.
CAUTION:
- When replacing the power window regulator motor ASSY with new one or reusing its motor, perform the initialization of the power window system.
- After replacing door glass and/or weather strip, AUTO UP operation sometimes activates auto-reverse function. In this case, the door glass is fully closed by performing the procedure in the following order (*3). AUTO U0 HOLD -> (the auto-reverse function (glass reverse operation)) -> (*1) -> AUTO U0 HOLD -> (the auto-reverse function (glass reverse operation)) -> AUTO UP HOLD (*2).
- *1: If DOWN operation, IG OFF & timer operation OFF, and/or index operation is executed between auto-reverse function and AUTO UP HOLD, return to the beginning of the procedure.
- *2: The upper end position of the glass is relearned by this operation (AUTO UP HOLD).
- *3: The failure of the door glass or regulator may prevent full closing of the door glass.
Circuit figure
Inspection steps
