Power locks
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Joined: Jul 2005
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From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Power locks
Does anybody have advice/procedure on installing power lock doors on a non power lock car? Thanks 
Brendan

Brendan
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Supreme Member
Joined: Jul 2005
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From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Never mind, i can figure this out myself. Does anybody know what current the stock door lock switches are rated for? That will determine which resistor i use to limit current, as well as which relay i select.
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Supreme Member
Joined: Jul 2005
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From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
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Joined: Oct 1999
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From: Westminster, MD
Car: 89 IROC-Z
Engine: 355 TPI
Transmission: 700R4
What resistor? Why are you limiting the current to the door lock solenoids? The swap should be vary straight forward. Are you getting the locks from a donor car or are they after market. Did you score any of the harness at the same time? What about the switches? Adding remote locks at the same time?
But first, have you searched?
But first, have you searched?
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Joined: Jul 2005
Posts: 2,123
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From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
I have searced. I am making my own wiring harness and relay setup. I am limiting the current through the stock lock switches, not the solenoid. I don't want to pick the wrong solenoid and burn out the switches.
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Joined: Oct 1999
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From: Westminster, MD
Car: 89 IROC-Z
Engine: 355 TPI
Transmission: 700R4
If you’re using relays the only current through the switches should be the relay coil current, not the lock solenoid current. The door lock solenoid current should all be passing through the relay contacts. If you looking at using Bosh or ‘Bosh style’ relays the current through the switches should be well under 400mA and the contacts are rated for at lest 30A. You can push Bosh relay contacts well past that for short bursts, like locking/unlocking the doors. How are you trying to do this? Trending Topics
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Joined: Mar 2004
Posts: 70
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From: Houston, Tx
Car: 91 camaro rs
Engine: 350tpi
Transmission: 700r4
Thread Starter
Supreme Member
Joined: Jul 2005
Posts: 2,123
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From: North Central Mass.
Car: 1985 Berlinetta
Engine: Megasquirted TPI
Transmission: Transgo 700R4
Axle/Gears: 3.42
Awesome. I wasnt sure if the relays had built in current limiting. I know if you use a voltage source without a resistor on some relays, the coil burns out. Nice to know I don't have to worry about it. Thanks for that link!
that will save me trying to figure out what does what with a multimeter
that will save me trying to figure out what does what with a multimeter
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Joined: Jan 2004
Posts: 2,322
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From: So. Ohio
Car: 88 Camaro
Engine: L98 350
Transmission: 700r4
Buy a reversing relay on Ebay for about 4 bucks, get ten for about $15. Junkyards are full of the GM relays, that's the best bet. Takes some head scratching to figure out the wiring. Door switches will only handle the relay coil current.
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Joined: Dec 2004
Posts: 627
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From: Warren, MI
Car: 1989 Firebird Formula
Engine: 305 T.B.I. (Vin tag "E" = LO3)
Transmission: THM-700-R4
Axle/Gears: 10 bolt posi 3.23
Originally posted by Toehead
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Is there anyone home?
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