Power Window Master Switch Illumination Test: Corolla

Disconnect driver's power window master switch harness connector. Connect 30-amp fused jumper from 12-volt battery positive terminal to terminal No. 11 (Black wire) at driver's power window master switch. See Figure. Connect another jumper from battery negative terminal to terminal No. 4 (White/Black wire) at driver's power window master switch. 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.