PW6: Check Power Supply
Disconnect the power window main switch. Turn the ignition key to the ON possition. Measure the voltage on the (Black/White) wire at the power window main switch connector. See WIRING DIAGRAMS . Check the voltage, is it greater than 10 volts? If yes, go to the next step. If no, service the (Black/White) wire between the power window main switch and the interior fuse panel for open.