PW12: Check Passenger Switch Power Supply
With the power window switch in the ON position, make sure the power window main switch is connected. Disconnect the passenger side switch. Measure the voltage on the (Black/Blue) wire at the passenger switch connector. See WIRING DIAGRAMS . Is the voltage greater than 10 volts? If yes, replace the passenger switch. If no, service the (Black/Blue) wire between the power window main switch and passenger switch.