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DTC B2312: Power Window Switch Malfunction [10/2015 - ]: Description

The power window regulator motor assemblies are operated by the power window regulator master switch assembly, power window regulator switch assembly or rear power window regulator switch assemblies. The power window regulator motor assemblies have motor, regulator and ECU functions.

This DTC is output when the ECU built into a power window regulator motor assembly and power window regulator master switch assembly determine that the power window regulator master switch assembly, power window regulator switch assembly or rear power window regulator switch assembly is stuck.

MASTER SWITCH

DTC No. Detection Item DTC Detection Condition Trouble Area
B2312 Power Window Switch Malfunction
  • Either condition is met:
    1. Power window regulator master switch assembly stuck
    2. Power window regulator master switch assembly held in same position for more than 20 seconds
    3. Power window regulator master switch assembly operated for 20 seconds or more
Power window regulator master switch assembly
DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2 Pattern 3
Diagnosis Condition Engine switch on (IG)
Malfunction Status 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 operated for 20 seconds or more - -
Detection Time - - -
Number of Trips 1 trip 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.

D-DOOR MOTOR

DTC No. Detection Item DTC Detection Condition Trouble Area
B2312 Power Window Switch Malfunction
  • Either condition is met:
    1. Power window regulator master switch assembly stuck
    2. 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 door)
  • Harness or connector
DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Engine switch on (IG)
Malfunction Status Power window regulator master switch assembly stuck -
Power window regulator master switch assembly held in same position for more than 20 seconds -
Detection Time - -
Number of Trips 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.

P-DOOR MOTOR

DTC No. Detection Item DTC Detection Condition Trouble Area
B2312 Power Window Switch Malfunction
  • Either condition is met:
    1. Power window regulator switch assembly stuck
    2. Power window regulator switch assembly held in same position for more than 20 seconds
  • Power window regulator switch assembly
  • Power window regulator motor assembly (for front passenger door)
  • Harness or connector
DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Engine switch on (IG)
Malfunction Status Power window regulator switch assembly stuck -
Power window regulator switch assembly held in same position for more than 20 seconds -
Detection Time - -
Number of Trips 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.

RL-DOOR MOTOR

DTC No. Detection Item DTC Detection Condition Trouble Area
B2312 Power Window Switch Malfunction
  • Either condition is met:
    1. Rear power window regulator switch assembly (for LH door) stuck
    2. Rear power window regulator switch assembly (for LH door) held in same position for more than 20 seconds
  • Rear power window regulator switch assembly (for LH door)
  • Power window regulator motor assembly (for rear LH door)
  • Harness or connector
DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Engine switch on (IG)
Malfunction Status Rear power window regulator switch assembly (for LH door) stuck -
Power window regulator switch assembly rear (for LH door) held in same position for more than 20 seconds -
Detection Time - -
Number of Trips 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.

RR-DOOR MOTOR

DTC No. Detection Item DTC Detection Condition Trouble Area
B2312 Power Window Switch Malfunction
  • Either condition is met:
    1. Rear power window regulator switch assembly (for RH door) stuck
    2. Rear power window regulator switch assembly (for RH door) held in same position for more than 20 seconds
  • Rear power window regulator switch assembly (for RH door)
  • Power window regulator motor assembly (for rear RH door)
  • Harness or connector
DTC DETECTION CONDITIONS

  Vehicle Condition
Pattern 1 Pattern 2
Diagnosis Condition Engine switch on (IG)
Malfunction Status Rear power window regulator switch assembly (for RH door) stuck -
Power window regulator switch assembly rear (for RH door) held in same position for more than 20 seconds -
Detection Time - -
Number of Trips 1 trip 1 trip

HINT: 

DTC will be output when conditions for either of the patterns in the table above are met.