Diagnostic Trouble Code Chart

WARNING: This page is about a different car, the 2007 Lexus SC 430. However, it is still accessible from the selected car via links, so may be relevant.

HINT:

If a trouble code is displayed during the DTC check, inspect the trouble areas listed for that code. For details of the code, refer to the "see page" below.

DTC DETECTION CONDITION CHART

DTC No.	Detection Item	Trouble Area
B1221	Power Window Switch Circuit on Driver Door	Power window regulator master switch assembly Multiplex network door ECU front LH (driver door ECU) Wire harness
B1223	Power Window Switch Circuit on Passenger Door	Power window regulator switch assembly (passenger side) Door control switch assembly (passenger side) Multiplex network door ECU front RH (Passenger door ECU) Wire harness
B1231	Jam Protection Limit Switch Circuit on Driver Door	Power window regulator motor assembly LH front (driver side) Multiplex network door ECU front LH (driver door ECU) Wire harness
B1232	Jam Protection Pulse Switch Circuit on Driver Door	Power window regulator motor assembly LH front (driver side) Multiplex network door ECU front LH (driver door ECU) Wire harness
B1233	Jam Protection Limit Switch Circuit on Passenger Door	Power window regulator motor assembly RH front (passenger side) Multiplex network door ECU front RH (Passenger door ECU) Wire harness
B1234	Jam Protection Pulse Switch Circuit on Passenger Door	Power window regulator motor assembly RH front (passenger side) Multiplex network door ECU front RH (Passenger door ECU) Wire harness