Test D: Passenger's Window Okay Using Main Switch, But Inoperative Using Sub-Switch

NOTE: Black/White wire at main switch may change to Black/Blue wire before it reaches sub-switch.

Turn ignition on. Check voltage at Black/White (or Black/Blue) wire terminal of sub-switch connector. If battery voltage is present, replace sub-switch. If battery voltage is not present, repair Black/White or Black/Blue wire.