Circuit Description
WARNING: This page is about a different car, the 2004 Lexus GS 430 and 2004 Lexus GS 300. However, it is still accessible from the selected car via links, so may be relevant.
Power window master switch circuit can be checked using DTC check. (See DTC B1221/21 POWER WINDOW SWITCH CIRCUIT ON DRIVER DOOR, DTC B1222/22 DOOR LOCK SWITCH CIRCUIT ON DRIVER DOOR, DTC B1223/23 POWER WINDOW SWITCH CIRCUIT ON PASSENGER DOOR, DTC B1224/24 DOOR LOCK SWITCH CIRCUIT ON PASSENGER DOOR, DTC B1225/25 POWER WINDOW SWITCH CIRCUIT ON REAR RIGHT DOOR, DTC B1226/26 POWER WINDOW SWITCH CIRCUIT ON REAR LEFT DOOR, DTC B1241/41 BODY NO. 1 ECU SWITCH CIRCUIT DIAGNOSIS, DTC B1252/52 BODY NO. 2 ECU SWITCH CIRCUIT DIAGNOSIS )