adding door locks actuators

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Member - Posts: 1

Joined: October 18, 2005

Location: United States

Posted: December 27, 2011 at 9:20 PM / IP Logged

Has anyone added aftermarket door lock actuators using existing door lock wiring on 1977 Ford Thunderbird? The car didn't come with power door lock option but the wiring is there. I wired everything but I can't get the actuators to work with the factory switches. Any help would be appreciated..

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: December 28, 2011 at 3:28 AM / IP Logged

You have to work out what the factory switches are doing.

If there are 5 terminals and the switches are DPCO it can be done.

If 3 terminals you will need a pair of relays.

Question is there a new relay with the new actuators?

There are so many permutations here, I wouldn't recommend any action unless you know how to use a DMM and test.

i am an idiot

Platinum - Posts: 13,709

This member consistently provides reliable information

Joined: September 21, 2006

Location: Louisiana, United States

Posted: December 28, 2011 at 5:53 AM / IP Logged

They may have all wiring for the door locks. But if the car did not come with them, I am sure they did not install the 2 relays and the Fuse/Circuit Breaker.

offroadzj

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Joined: June 03, 2005

Location: New York, United States

Posted: December 28, 2011 at 6:01 AM / IP Logged

yea, what they said... haha. How many wires are inside the door where the factory actuator would be? If there are 2 then put your positive and negative probes from your DMM into each one. If they are already wired with relays you should get a +12v signal when unlocking/locking, and a -12v signal (as displayed on the DMM b/c the wires would be reversed) when locking/unlocking (depending on how you have the probes)

Kenny

Owner / Technician

KKD Garage LLC

Albany, NY 12205

howie ll

Pot Metal - Posts: 16,466

Joined: January 09, 2007

Location: United Kingdom

Posted: December 28, 2011 at 6:57 AM / IP Logged

Here are two typical examples, I've no idea which yours might be, my data bases don't go back that far.

door_locks_1.bmp

doorlocks_2.bmp

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adding door locks actuators

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