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 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. 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.