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16MB Downloadable PDF file of the complete 1971 Mercury Cougar electrical wiring diagram used by Ford Technicians. You will receive a download link both on the order confirmation screen and via email once your order is complete.

In this download you will find diagrams for the following systems:

  • Air Conditioning
  • Brake Lights
  • Charging
  • Cigar / Cigarette Lighter
  • Circuit Protection
  • Clock
  • Convenience Systems
  • Convertible Top
  • Defogger
  • Exterior Lights
  • Gauges
  • Head Lamp on Warning Buzzer
  • Heater Defroster
  • Horns
  • Key Warning Buzzer
  • Ignition
  • Instrument Panel
  • Interior Lights
  • Neutral Switch
  • Parking Brake Warning Light
  • Power Windows
  • Radio and Stereo Tape
  • Seat Back Latch
  • Seat Belt Reminder Light
  • Starting
  • Tachometer
  • Turn Signals
  • Vacuum Systems
  • Windshield Wipers and Washers

Please Note: This is a high resolution scan of the original Ford document, which was 24" wide by 16" tall. These will not print well on a single 8.5" by 11" piece of paper. You can however use Adobe Reader to print these as a "poster" on multiple sheets of paper per original page that you can then tape together in order to be able to print the desired pages at full size or the file can be taken to a local print shop and printed at full size.

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71 Cougar FREE Schematic

5.00 out of 5
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  • easy to use anywhere
  • Hard to see the big picture on a phone
Thank you WCCC for providing this schematic at no cost to your customers. It is very helpful to use for repairs and restoration. I'd be in the dark without it. It saves countless hours work. Of course that leaves us free to do more work and buy more parts sooner.

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Why am I being warned about potential exposure to chemicals in motor vehicle parts?

  • Some chemicals in motor vehicle parts are on the Proposition 65 list because they can cause cancer and/or birth defects or other reproductive harm.
  • When purchasing USED or NOS items, we do not know if listed chemicals are present in these products.
  • This product is known to contain the following listed chemicals:
I just wanted to let you know that my order which was shipped (via UPS Mail Innovations) December 05 was at my front door, having gone thru Canada customs, on December 16. It arrived in excellent shape. Kudos to you guys, UPS, and the USPS for...
- Rod (Saskatchewan, Canada)
I liked that I could see a picture of parts and that you could type in what you were looking for. What was handy for me was the ability to chat with Darrell. He was a big help. Also high on the you gotta keep on staff was Joshua, I had some issues...
- Rod (Canada)
I was having difficulty placing my order on the website and spent a couple of hours trying with no luck (ending in immense frustration). I decided to finally just call and order my parts over the phone (4 small items). Was surprised that Don Rush...
- Tim (1969 Cougar XR7)
Brake booster failed on our 1970 Mach1. We had ordered a new 2022 Mach1 to match the old one and the dealer wanted to use both cars in a promotional ad. When we received the replacement booster it failed within a few minutes of installation. I...
- Alan
WCCC makes finding the right part with the right fit easy. I love that they try to get great parts and when there are parts that don't meet their standard they WARN you up front! I've bought new reproduction parts from them, used parts and even had...
- Daniel
You all have everything... even when I think it would be hard to find. Used, repro, all of it. Thank you all for the all the help since 2020, when I bought my dream XR-7.You all ROCK! Thanks WCCC! Wear my shirt proudly, for sure.Thanks again for...
- Eric (North Carolina)
For five years I've been buying parts for my car from WCCC. For five years I've gotten free advice, research, techniques, and demonstrations that have helped me put the car together correctly. I would never have figured out some of the things I...
- Dan
Today I was contact by Darrel on his day off to fix a problem that occurred with an order. I can not express enough how thoroughly pleased I was with his service, and that of Don Rush, for making it happen. I would recommend WCCC to anyone that...
- Jerry
I have used West Coast Cougar twice to have parts for my 1971 XR-7 Convertible shipped to Australia. Cannot fault their service and communication. Am definitely a fan. Website is also very comprehensive, they deserve 5 stars. Cheers from The Land...
- Gary
The LED PLASMA WHITE lightbulbs are super bright and greatly enhance the visibility (and safety) of my backup lights. A great addition to my already RED PLASMA BRAKE LIGHTS ...
- Jim Kemp