Power Window Master Switch Illumination Test: Celica

Disconnect driver's power window master switch harness connector. Connect 30-amp fused jumper wire between 12-volt battery positive terminal and terminal No. 7 (White/Green wire) at driver's power window master switch. See Figure. Connect another jumper wire between battery negative terminal and driver's power window master switch terminal No. 9 (White/Black wire). Ensure all switches illuminate. If operation is not as specified, replace driver's power window master switch. See POWER WINDOW SWITCH  under REMOVAL & INSTALLATION. If operation is as specified, driver's power window master switch is okay.