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Diagnostic Trouble Code Chart

If a malfunction code is displayed during the DTC check, check the circuit listed for that code in the table below.(Proceed to the page given for that circuit.)

DIAGNOSTIC TROUBLE CODE REFERENCE

DTC No. (See) Detection Item Trouble Area
B1221 ( DTC B1221 POWER WINDOW SWITCH CIRCUIT ON DRIVER DOOR )
  • Power window switch circuit on driver door
  • Power window regulator master switch
  • Driver door ECU
B1222 ( DTC B1222 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR )
  • Door lock switch circuit on driver door
  • Power window regulator master switch
  • Front door lock assembly LH
  • Driver door ECU
B1223 ( DTC B1223 POWER WINDOW SWITCH CIRCUIT ON PASSENGER DOOR )
  • Power window switch circuit on passenger door
  • Door control switch (passenger's side)
  • Passenger door ECU
B1224 ( DTC B1224 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR )
  • Door lock switch circuit on passenger door
  • Door control switch (passenger's side)
  • Front door lock assembly RH
  • Passenger door ECU