1996 f 150 accessory wire for a/c

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=127680
Printed Date: May 10, 2025 at 2:40 PM

Topic: 1996 f 150 accessory wire for a/c

Posted By: 06f150
Subject: 1996 f 150 accessory wire for a/c
Date Posted: June 19, 2011 at 5:27 PM

1996 Ford F-150 5.0

Have an ultra stater installed and everything works great besides one thing.

When under remote starting the A/C does not run, the fan blows but the compressor is not engaged. As soon as you put the key in and turn it over, it then turns on and runs like it should.

I am looking at the wiring diagram and it has gray / YELLOW for the accessory and blue/green for heat and A/C...

Thing is the heat works just fine under remote starting, its just the A/C that is not engaging. And with what the wiring diagram is telling me is that they use the same wire, so if heat works the A/C should too...

I'm going to look at it in a day here to verify all wires but I am not sure if I am missing something...or if someone else has different diagram with another wire color listed?

Thanks guys!

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Replies:

Posted By: i am an idiot
Date Posted: June 19, 2011 at 6:04 PM

Did you power both of the ignition wires listed below?

Battery	YELLOW	(+)	IGNITION SWITCH HARNESS
Ignition 1	RED / LIGHT GREEN	(+)	IGNITION SWITCH HARNESS
Ignition 2	GRAY / YELLOW	(+)	IGNITION SWITCH HARNESS
Accessory 1	GRAY / YELLOW	(+)	AND BLK/GRN IGN SW HAR "BLK/GRN FOR AC"
Starter 1	RED / LIGHT BLUE	(+)	IGNITION SWITCH HARNESS

The heat does not need to power the AC compressor. The statement "If the heat works, the AC should too" is not true.

Posted By: 06f150
Date Posted: June 21, 2011 at 2:44 PM

Ah, Learn something everyday.....I went out testing wires and it was the GREEN/ back wire for the A/C that I had missed to hook up. Now everything is running like it should!

Thanks for the help!