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Ron
Ron, ASE Certified Technician
Category: Ford
Satisfied Customers: 33439
Experience:  23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
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Are Upfitter switches (66S) on a F250 connected to anything?

Customer Question

Are Upfitter switches (66S) on a F250 connected to anything?
Submitted: 4 months ago.
Category: Ford
Expert:  Ron replied 4 months ago.

Hello Jin and thank you for your question,

No the switches are not connected to anything unless you have wired them up to accessories. The Ford Upfitter Switches are optional instrument panel mount switches (Option Code 66S) that control passenger side mounted relays. These relays power four blunt cut wires that are taped on a harness near the relay pack that can be found beneath the instrument panel and to the left of the steering column. Are you planing on adding something that needs them? If you needing the steps to do so, please let me know and I can help you with them.

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