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Diagnostic Trouble Code Chart

  1. DIAGNOSTIC TROUBLE CODE

    Door ECU (driver side)

    DIAGNOSTIC TROUBLE CODE

    DTC Code Item Diagnosis
    B1231/31 Driver side jam protection limit switch malfunctions Power window regulator motor assy RH open in limit switch system
    B1232/32 Driver side jam protection sensor malfunctions Power window regulator motor assy RH open or short in pulse sensor system
  2. MONITOR CODE

    HINT:

    • The monitor code shows the switch condition when a DTC is output.
    • When a monitor code is indicated while the switch is not operated, the switch is detected in being stuck. When a monitor code is not indicated while the switch is operated, it is detected that the switch contact condition is bad.
      MONITOR CODE

      DTC Code Item Monitor Item
      B1221/21 Driver side switch 1 (operating) Any switch of the power window regulator master switch is ON
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