Ungo locks and F-150

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Haldol

Copper - Posts: 65

Joined: December 10, 2003

Location: United States

Posted: January 09, 2004 at 10:05 PM / IP Logged

I'm working on a 1995 F-150 xlt extended cab, with keyless. I am attempting to install my Ungo ms2000 in the truck. The truck has a reverse polarity door lock system. I have wired my two relays correctly (87 and 85 of both relays to 12v; 86 of one relay to the alarm's negative lock output; 86 of the other relay to the alarm's negative unlock output, 87a going to the switch and 30 going to the motor). The relays are clicking when I arm and disarm the alarm so I am assuming they work (especially since I had the same alarm, same relays working in another truck just a few days ago). I get voltage through the wires when I arm and disarm.

The Problem: when I connect the switch and motor wires up to the lock and unlock wires of the truck (passenger kick, pink / YELLOW and pink/green), nothing happens. When the relays are wired into the factory system, as it would be when installed, the power locks work fine. However, for some reason, the locks will not do anything when I arm and disarm the alarm.

Any suggestions are appreciated.

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auex

Platinum - Posts: 5,041

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Joined: December 23, 2002

Location: Arizona, United States

Posted: January 09, 2004 at 10:15 PM / IP Logged

My diagram shows that if the truck has factory keyless entry the locks are negative trigger not positive. Try putting a ground to pin 87 of the relays.

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Haldol

Copper - Posts: 65

Joined: December 10, 2003

Location: United States

Posted: January 09, 2004 at 10:34 PM / IP Logged

So in other words, switch out everything that has 12v and go with a ground? I thought it was a reverse polarity system?

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Haldol

Copper - Posts: 65

Joined: December 10, 2003

Location: United States

Posted: January 09, 2004 at 11:58 PM / IP Logged

I understand. I got it going. Thanks for the help.

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Ungo locks and F-150

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