Component Testing Procedure
WARNING: This page is about a different car, the 2006 Ford F550 Super Duty, 2006 Ford F450 Super Duty, and 2006 Ford Cab & Chassis. However, it is still accessible from the selected car via links, so may be relevant.
MASTER WINDOW ADJUST SWITCH (14540) COMPONENT TESTING
| Circuit to test | Connect self-powered test light or ohmmeter to terminals | Move switch to these positions | A good switch will indicate |
|---|---|---|---|
| Power and Ground Checks Before Any Other Tests | C504b, 4, and C504a, 3 C504b, 4, and C504a, 4 C504b, 4, and C504a, 8 C504b, 4, and C504a, 1 C504b, 4, and C504a, 2 C504b, 4, and C504a, 3 C504b, 4, and C504a, 4 C504b, 4, and C504a, 5 C504b, 4, and C504a, 6 |
All Eight Window Switches (at rest) | Closed circuit |
| Left front window circuit | C504a, 6 and C504a, 8 | Up | Closed circuit |
| Right front window circuit | C504a, 3 and C504a, 6 | Down | Closed circuit |
| C504a, 4 and C504a, 6 | Up | Closed circuit | |
| Left rear window circuit | C504a, 6 and C504b, 6 | Down | Closed circuit |
| C504a, 6 and C504b, 5 | Up | Closed circuit | |
| Right rear window circuit | C504a, 6 and C504b, 2 | Down | Closed circuit |
| C504a, 6 and C504b, 3 | Up | Closed circuit | |
| C504a, 6 and C504b, 4 | Lock | Open circuit | |
| Unlock | Closed circuit |