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Need help identifying electrical connectors on 87 f-150. Please help

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Need help identifying electrical connectors on 87 f-150. Please help

Post #1 by eighty-seben » Wed Mar 13, 2019 9:04 pm

Getting near the tail end of a budget restoration of a 1987 F-150. The original owner did a handful of hackjob repairs/"mods" like poorly wired audio and aftermarket alarm system hacked into various harnesses, etc. I have just about all the kinks worked out on the truck save for a few electrical issues and disconnected harnesses that have bothered me since purchasing the truck.

Anyone who could provide some knowledge or advice on the following would be a great help.

1. Dash anti-lock light stays on. Replaced the ABS sensor and fixed a disconnected rear diff vent tube that I noticed while replacing the sensor. Light stayed on.

And 2. Identifying the following disconnected harnesses found in the engine bay. Located on the driver's side above the wheel well.

Image Image Image Image Image Image Image

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Re: Need help identifying electrical connectors on 87 f-150. Please help

Post #2 by B RON CO » Sun Mar 17, 2019 9:21 am

Hi, the crescent shaped plug in the 2nd and 3rd pic is the data link port for a computer scan tool.
Ford used to leave unused plugs in the harness for optional equipment your truck may not have. That doesn't mean the rest are not needed. Some of that could be related to the abs light. You need a color coded wiring diagram for the various systems.
Good luck
B RON CO. Still workin' on it!

1933 Ford Pickup - 59A Flathead V8
1966 Ford Bronco - U14 - 170/200 Straight 6
1966 Ford Mustang - 289 V8

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