Hey guys (and girls) I am new to the forum. First I would to say this is an AWESOME forum and website. Kudos to everyone involved!!OK I have been browsing the site looking for info on how to get some power door locks working.The Truck is a 1993 Chev truck (Z71) and I am installing a Black Widow 7150 FM Alarm/starter combo.I have tryed connecting the relays in the reverse polarity config. and the 5 Wire Alternating config. neither work.I am using the BLUE wire for locking and the BLACK/ red wire for unlock....it just will not work. I know that the switched still work because I have tested and re-tested them after each unsuccessful attempt.
PLEASE....any suggestions would be greatly appreiciated.
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Fulblown MotorSports
Joshua
did you test to ensure you you grabbed the right lock/unlock wires? baby blue and black sound right for that truck...each wire will test +12V when hitting the switch up and down...this way you know for sure you've got the right wires (there are often multiples of the same colour)
It is the 5 wire, reversal rest at ground circuit that you need. You'll need to cut the lock/unlock wires when you find them, and end up with a switch side and vehicle side. Test each "side" of each wire while hitting the doorlock switch....the side that still shows +12V when switching is the "switch side".
Simply follow the diagram on here for 5 wire reversal rest at ground circuit. Ensure your starter is providing a negative pulse (most diagrams are designed for that). You'll notice that when the d/l wires are cut, the switch will stop functioning (duh!). However, when the relays are wired correctly, the switch will work again...its a good hint things are right...
Perhaps the outputs off the unit aren't working right? did you try manually grounding the lock/unlock wires of the relay harness to see?
b
The truck is a 2 door, no keyless. Just the regular power locks. You hit the switch once and it either locks or unlocks both doors. Were in the site is the 5 WIRE Revere rest at GROUND DIAGRAM. I know were the 5 wire alternating and the reverse polarity circuit is, but I cannot find that one.
Thank you
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Fulblown MotorSports
Joshua
there are usually more than one name for a circuit. The one you want is where you find the lock and unlock wires that show a positive pulse when tested. Then CUT the lock and unlock wires, giving you 4 "sides". You'll have a pair of "switch side" wires and pair of "motor" or "vehicle" side wires. From there, using the right dual relay socket is easy stuff...
b
Hey guys thanks for your help, but I am still having problems!!
87a on my relay is a constant power source if I have 87 supplied with 12V. Is this right??
IS THIS RIGHT???
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Fulblown MotorSports
Joshua
No that is not right. I had the same problem on my 94 chev pick-up. I bought the relays at Canadian Tire, and they said 87 and 87a on them, but really it was just two 87's. Get the proper relays and i bet it works like a charm.
5 Wire Alternating 12 Volts Positive Door Locks