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.

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.

Power door lock control system

DIAGNOSTIC TROUBLE CODE CHART

DTC No.	Detection Item	Trouble Area
B1222	Driver Side Door Lock Switch Circuit Malfunction	Power window regulator master switch Front door with motor lock LH Multiplex network front door ECU LH Wire Harness
B1224	Front Passenger Side Door Lock Switch Circuit Malfunction	Door control switch (passenger side) Front door with motor lock RH Multiplex network front door ECU RH Wire harness