Description & Operation

Depending on model, system components vary. System components may consist of a power main relay, body control ECU, integration relay or instrument ECU. See WIRING DIAGRAMS . All models have power window switches and power window motors for each door. With ignition switch in ON position, battery voltage is supplied through power main relay or body control ECU to power window switches. Power window switch supplies power and ground for power window motors. 4Runner also has a power window switch and lock switch for tailgate door.

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