Finding positive and negative wires to check window switch for power

Asked by TrailerBob May 30, 2018 at 01:54 PM about the 2004 Ford F-350 Super Duty

Question type: Maintenance & Repair

2004 Ford F350 6.0 driver window will not activate. I am trying to find out the color or
location of the neg and pos wires so I can see if power is getting to the switch. Also,
I am not sure how many fuses, relays, etc. are involved in this circuit. Thanks

1 Answer
27,460

oilyspill answered 6 years ago

In the diagram, you can see the fuses and relays involved. As far as the fuses, not only check the fuse, use a test light and check voltage on fuse circuit. At the master switch on driver door, The lite blue wire with black tracer is voltage. The solid black wire ground.

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