A8: Check Wire To Passenger Switch

Disconnect passenger power window switch. Turn ignition switch to ON. Push power switch on power window main switch to ON position. Measure voltage on Black/Blue wire at passenger power window switch connector. See WIRING DIAGRAMS  . Is the voltage 10 volts or greater? If yes, then go to A9: Check Passenger Switch Circuit Continuity  . If not, then repair Black/Blue wire between power window main switch and passenger power window switch.