Circuit Description
WARNING: This page is about a different car, the 2003 Lexus IS 300 and 2002 Lexus IS 300. However, it is still accessible from the selected car via links, so may be relevant.
This DTC notifies how the switch works as follows: If the DTC is not output when operating the switch, it means failure of switch contact. If the DTC is output when not operating switch, it means switch is stuck. When something wrong is found by this diagnosis, inspect each switch. Then replace the faulty switch if there is a problem, or check the wiring harness if there is no problem.
Detecting Condition - Stuck switch.
Trouble Area - Power Window Master Switch.