Description & Operation

WARNING: This page is about a different car, the 2002 Toyota Avalon. However, it is still accessible from the selected car via links, so may be relevant.

WARNING: Vehicle is equipped with air bag supplemental restraint system. Before attempting ANY repairs involving steering column, instrument panel, seat assembly or related components, see SERVICE PRECAUTIONS and DISABLING & ACTIVATING AIR BAG SYSTEM in TOYOTA - AIR BAG RESTRAINT SYSTEMS article.

CAUTION: When battery is disconnected, vehicle computer and memory systems may lose memory data. Driveability problems may exist until computer systems have completed a relearn cycle. See COMPUTER RELEARN PROCEDURES article in GENERAL INFORMATION before disconnecting battery.

System consists of a power main relay, power window fuses, power window switches and power window motors for each door. The power window switch on front doors are part of the door electronic control unit (ECU). The driver door ECU may be referred to as the master window switch. The front passenger door ECU may be referred to as power window switch. The power window system is part of the multiplex communication network. See MULTIPLEX CONTROL SYSTEMS - AVALON article under COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT. The body control ECU monitors driver door ECU, front passenger door ECU and rear window switches. The driver and front passenger door ECUs control operation of front power windows. The body control ECU controls operation of the rear power windows. See BODY CONTROL SYSTEMS - AVALON article under COMMUNICATION DEVICES in ACCESSORIES & EQUIPMENT.

Driver power window switch offers one-touch operation of driver window. Driver power window switch also includes a lock-out feature to prevent passengers from operating any of the other power window switches.