1990 Silverado, 5 wire door locks
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=72582
Printed Date: May 03, 2024 at 7:38 PM
Topic: 1990 Silverado, 5 wire door locks
Posted By: strubel55
Subject: 1990 Silverado, 5 wire door locks
Date Posted: February 10, 2006 at 1:52 PM
Hello! I have a 1990 Chevy Silverado K1500 2dr truck. I have a 5 wire relay system for my door locks which were working great until the other day. It will unlock the doors, but it wont lock them now. I went back into the relay wiring and checked the lock relay. I unhooked the alarm wire input, which is the negative trigger on my Compustar alarm, and grounded it to the truck and it sparks like there is a short or something. When I connected these relays on installation, the relay would lock when I touched the trigger wire of the relay to ground on the truck. Now it just sparks! I have tried swapping the relays. Same problem. I have replaced both relays. Same problem. Any ideas out there??
Replies:
Posted By: strubel55
Date Posted: February 12, 2006 at 9:37 PM
Anybody have any ideas?
Posted By: teamsolow_37
Date Posted: February 13, 2006 at 8:49 PM
hey there i dont know if you know this but chevy trucks are positive trigger lock and unlock any questions on how to do this email me at
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Teamsolow_37
Posted By: Velocity Motors
Date Posted: February 13, 2006 at 10:37 PM
2 door models are 5 wire and 4 door models are (+) trigger.The output for the locks should rest at 12 volts but go to ground when activated by the remote. If your having troubles with the CPU, go back to the place that you bought it from and have them look at the installation and have it replaced. You have a lifetime warranty on the system if it was installed by an authorized dealer.
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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA
Posted By: strubel55
Date Posted: February 15, 2006 at 9:10 PM
So you think the alarm CPU maybe giving me the problem?
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