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DTC B2312: Power Window Switch Malfunction: Description

The power window regulator motor is driven by operating the power window regulator switch. The power window regulator motor assembly consists of the motor and ECU.

This DTC is stored when the ECU built into the regulator motor and master switch determines that the multiplex network master switch assembly or power window regulator switch assembly is stuck.

HINT: 

This DTC may be stored for all the windows.

MASTER SWITCH

DTC Code DTC Detection Condition Trouble Area
B2312 Either condition is met:
  • The multiplex network master switch is stuck.
  • The multiplex network master switch is held in the same position for more than 20 sec.
 Multiplex network master switch assembly
D-DOOR MOTOR

DTC Code DTC Detection Condition Trouble Area
B2312 Either condition is met:
  • The multiplex network master switch is stuck.
  • The multiplex network master switch is held in the same position for more than 20 sec.
  • Multiplex network master switch assembly
  • Front power window regulator motor assembly LH
  • Harness or connector
P-DOOR MOTOR

DTC Code DTC Detection Condition Trouble Area
B2312 Either condition is met:
  • The power window regulator switch is stuck.
  • The power window regulator switch is held in the same position for more than 20 sec.
  • Front power window regulator switch assembly RH
  • Front power window regulator motor assembly RH
  • Harness or connector
RR-DOOR MOTOR

DTC Code DTC Detection Condition Trouble Area
B2312 Either condition is met:
  • The rear power window regulator switch RH is stuck.
  • The rear power window regulator switch RH is held in the same position for more than 20 sec.
  • Rear power window regulator switch assembly RH
  • Rear power window regulator motor assembly RH
  • Harness or connector
RL-DOOR MOTOR

DTC Code DTC Detection Condition Trouble Area
B2312 Either condition is met:
  • The rear power window regulator switch LH is stuck.
  • The rear power window regulator switch LH is held in the same position for more than 20 sec.
  • Rear power window regulator switch assembly LH
  • Rear power window regulator motor assembly LH
  • Harness or connector
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