DTC B1223/23: Power Window Switch Circuit (Passenger)

WARNING: This page is about a different car, the 2003 Lexus RX 300 and 2002 Lexus RX 300. However, it is still accessible from the selected car via links, so may be relevant.

These DTCs notify how the switch works as follows: If the DTC is not output when operating switch, it means failure of switch contact. If DTC is output when not operating the switch, it means Sticking of switch. When something wrong is found by this diagnosis, inspect each switch. Then, replace the switch if there is a problem, or check the wiring harness if there is no problem.

Detecting Condition - Sticking of the power window switch or door lock control.

Trouble Area

Power Window Switch.
Door Lock Control Switch.
Wiring Harness.

For switch inspection, see POWER DOOR LOCKS & LIFTGATE article under DOOR LOCKS & ANTI-THEFT SYSTEMS in ACCESSORIES & EQUIPMENT.