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91 s10 blazer door lock relays

Printed From: the12volt.com
Forum Name: Relays
Forum Discription: Relay Diagrams, SPDT Relays, SPST Relays, DPDT Relays, Latching Relays, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=28105
Printed Date: July 17, 2025 at 6:07 AM


Topic: 91 s10 blazer door lock relays

Posted By: 91s10blazer
Subject: 91 s10 blazer door lock relays
Date Posted: March 10, 2004 at 12:46 AM

hi

i need help to find out where the door lock relays are on a 91 s10 blazer. for the keyless entry on my alarm.

thanks

91s10blazer




Replies:

Posted By: sparkie
Date Posted: March 11, 2004 at 1:54 PM
If your truck doesn't have a factory keyless entry, then your door locks are a 5 wire polarity reversal system which doesn't use a relay.

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sparky



Posted By: 91s10blazer
Date Posted: March 11, 2004 at 5:11 PM

am i able to hook up keyless entry. it is one of the features on my alarm and just want to know what i have to us to do so.



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91 S10 Blazer



Posted By: carluv
Date Posted: March 16, 2004 at 12:32 AM
now i don't want to say sparkie is wrong, but maybe he's a little mistaken. on my '92 s15 jimmy, the power door lock are wired into a relay assm. the truck was not ordered with a factory keyless entry system but it does have the relay. the GM part # i have is 12065122. i did install an aftermarket alarm system in my jimmy and the doors do lock/unlock with the remote, you just nees to trace the wires and install a couple of 4/5 pin relays- one to lock, one to unlock. all this can be done right bellow the dash near your kick pannel/ parking brake pedal area. just remember to wire everything INSIDE your truck , not inside the vent area.i had someone bring their truck to me to fix because it was unlocking doors all by it's self, at any given time. the run-off from the rain gutter drains down between your fender and the outer vent wall, thus getting the wiring/relays wet and shorting them out. good luck with the install.

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noreplacement4displacement


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