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 DEFINITIONS

DTC	Detection Item	Trouble Area
B1221	Power window switch circuit on driver door	Power window regulator master switch Driver door ECU
B1222	Door lock switch circuit on driver door	Power window regulator master switch Front door lock assembly LH Driver door ECU
B1223	Power window switch circuit on passenger door	Door control switch (passenger's side) Passenger door ECU
B1224	Door lock switch circuit on passenger door	Door control switch (passenger's side) Front door lock assembly RH Passenger door ECU