A new question is answered every 9 seconds

wiring diagram for ford f250 auxiliary switch panel

This answer was rated:

i need a wiring diagram to show how to wire accessory/auxiliary devices to the auxiliary switch panel in a 2005 ford f-250 super duty.
Are you referring to the factory installed upfitter switches next to the brake controller
Customer: replied 9 years ago.
Reply to Chris's Post: Yes. the 4 large toggle switches (factory equipment). i know they are wired to a relay box/control box somewhere but i need to know where and how to connect into the switch or relay for a particular switch.

Principles of Operation

When the vehicle's ignition key is in the RUN position voltage is supplied to upfitter relay control circuit. The upfitter relay closes and voltage is supplied to the upfitter relay box fuse 701 through circuit 1717 (VT/OG). The upfitter switch receives voltage through circuit 296 (WH/VT) and then distributes voltage to the 4 circuit control switches. When a control switch is closed it supplies voltage on circuit(s) 153 (VT/YE) upfitter relay #1, 154 (VT/LG) upfitter relay #2, 155 (GY/RD) upfitter relay #3, or 156 (GY/OG) upfitter relay #4 to one of the 4 upfitter relays in the upfitter relay box, closing the relay(s). Voltage is supplied to the switched side of the upfitter relays on circuits 1448 (OG/RD) upfitter relay #1, 1445 (RD/LG) upfitter relay #2, 1446 (RD/LB) upfitter relay #3, or 1447 (RD) upfitter relay #4. When the relay closes, voltage is supplied through the relay to the output circuits (blunt cut ends) 1936 (OG/LG) upfitter relay #1, 1933 (OG) upfitter relay #2, 1934 (OG/YE) upfitter relay #3, or 1935 (OG/LB) upfitter relay #4. The output circuits (blunt cut ends) supply voltage to the installed accessories connected to the upfitter relay box.

Visual Inspection Chart Electrical
Central junction box (CJB) fuse(s): In car fuse panel
3 (10A)
5 (10A)
108 (30A)
109 (30A)
115 (20A)
Upfitter relay box fuse 701 (5A)
Upfitter relay #1
Upfitter relay #2
Upfitter relay #3
Upfitter relay #4
Upfitter relay box
Upfitter relay switch(es)

The upfitter relay box is behind the glove box.




Customer: replied 9 years ago.
Where is this relay box located?
The upfitter relay box is behind the glove box there is also a pic on the last post
Chris (aka- Moose), Technician
Category: Ford
Satisfied Customers: 43110
Experience: 16 years experience
Chris (aka- Moose) and 4 other Ford Specialists are ready to help you

Related Ford Questions

Ask Chris (aka- Moose) Your Own Question
Chris (aka- Moose)
Chris (aka- Moose) , Technician
Category: Ford
Satisfied Customers: 43110
Experience:  16 years experience
Type Your Ford Question Here...
Chris (aka- Moose) is online now
How JustAnswer Works:
  • Ask an Expert
    Experts are full of valuable knowledge and are ready to help with any question. Credentials confirmed by a Fortune 500 verification firm.
  • Get a Professional Answer
    Via email, text message, or notification as you wait on our site.
    Ask follow up questions if you need to.
  • 100% Satisfaction Guarantee
    Rate the answer you receive.

What Customers are Saying:

  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
< Previous | Next >
  • AlvinC answered a question about my Ford truck that only someone with an in-depth knowledge of his subject would have known what was going on. Rich D USA
  • Because of your expertise, you armed me with enough ammunition to win the battle with the dealer. They are installing a fuel filter and fuel pump at no charge to me. Molly USA
  • I needed help with my car on Saturday morning....got a response in 5 minutes, and it was the perfect solution. Thanks again to your service. Jason V. Kirkland, WA
  • I do know, after going though this with JustAnswer, that I can somewhat trust my mechanic but I will always contact you prior to going there. BR New Jersey
  • I would (and have) recommend your site to others I was quite satisfied with the quality of the information received, the professional with whom I interacted, and the quick response time. Thanks, and be sure that I'll be back whenever I need a question answered in a hurry. Stephanie P Elm City, NC
  • used your service this weekend with "Trecers" help. thank you ,thank you, thank you. replaced an A/C fan motor. Local Auto Zone had part. $15.00 "tracer" fee and $40.00 for parts, I saved several hundreds of dollers at a shop. i will recommend you and use you in the future. David L. Richmond, TX
  • 9 dollars, 2 hours of my time, and I drove away. Your diagnosis was right on the mark. Thank you so much. Phil Marysville, CA

JustAnswer in the News:

Ask-a-doc Web sites: If you've got a quick question, you can try to get an answer from sites that say they have various specialists on hand to give quick answers... Justanswer.com.
JustAnswer.com...has seen a spike since October in legal questions from readers about layoffs, unemployment and severance.
Web sites like justanswer.com/legal
...leave nothing to chance.
Traffic on JustAnswer rose 14 percent...and had nearly 400,000 page views in 30 days...inquiries related to stress, high blood pressure, drinking and heart pain jumped 33 percent.
Tory Johnson, GMA Workplace Contributor, discusses work-from-home jobs, such as JustAnswer in which verified Experts answer people’s questions.
I will tell you that...the things you have to go through to be an Expert are quite rigorous.

Meet The Experts:

  • Ron


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
< Last | Next >
  • http://ww2.justanswer.com/uploads/FO/fordguyu/2015-7-7_172556_onnieew.64x64.jpg Ron's Avatar


    ASE Certified Technician

    Satisfied Customers:

    23 years with Ford specializing in drivability and electrical and AC. Ford certs and ASE Certs
  • http://ww2.justanswer.com/uploads/MU/muddyford/2012-6-13_1204_1.64x64.png Chris (aka- Moose)'s Avatar

    Chris (aka- Moose)


    Satisfied Customers:

    16 years experience
  • http://ww2.justanswer.com/uploads/JM/jmcdo28/2012-2-23_01655_resized.64x64.jpg John Mc's Avatar

    John Mc

    Ford Technician

    Satisfied Customers:

    19 years Ford Lincoln Mercury experience
  • http://ww2.justanswer.com/uploads/wmarti7/2009-4-18_04332_Avatar.jpg Chuck's Avatar


    ASE Certified Technician

    Satisfied Customers:

    33 Years Experience,Ford Senior Master,ASE Master,L1 Advanced Engine Performance
  • http://ww2.justanswer.com/uploads/BL/Bluegorilla/2012-6-21_16298_cam.64x64.JPG Cam's Avatar


    Journeyman Automotive Technician

    Satisfied Customers:

    GM Grand Master Technician 2007. 14 years Automotive experience.
  • http://ww2.justanswer.com/uploads/CR/crzydrvr00/2013-11-3_12123_246347.64x64.jpg Richard's Avatar


    ASE Certified Technician

    Satisfied Customers:

    12 years at a Ford Lincoln/Mercury and Jaguar dealer as a technician and shop foreman.
  • http://ww2.justanswer.com/uploads/BA/baddad1/2014-4-1_23659_avatar.64x64.jpg Mike V.'s Avatar

    Mike V.

    Auto Service Technician

    Satisfied Customers:

    25 years experience on all makes and models, Licensed NYS Inspector.