Unlock output Impulse Res/r not working?

Printed From: the12volt.com
Forum Name: Car Security and Convenience
Forum Discription: Car Alarms, Keyless Entries, Remote Starters, Immobilizer Bypasses, Sensors, Door Locks, Window Modules, Heated Mirrors, Heated Seats, etc.
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=4799
Printed Date: August 05, 2025 at 2:32 PM

Topic: Unlock output Impulse Res/r not working?

Posted By: kayo_420
Subject: Unlock output Impulse Res/r not working?
Date Posted: October 24, 2002 at 10:31 PM

Hi I have a 91 GMC Safari and the Impulse keyless entry/remote start system works great except when I try to unlock with the remote. The relay doesn't kick in at all and I have checked it to ensure it works. The unit puts out a negative pulse. I have positive doorlocks. I built a relay pack with 87s and 85s Constant 12V, 86s are the alarm outputs for lock/unlock and 30s are going to the respective vehicle wire (lock/unlock). Is this correct? Any suggestions? Perhaps the unlock output on the alarm is bad? Thanks, Kayo_420

Replies:

Posted By: mikec
Date Posted: October 24, 2002 at 11:14 PM

use a volt meter test the relay pack for voltage then see if the relays will click by grounding 86 on relays if the do work then the keyless entry might be bad

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audio installer /alarms/moblie video how can i help?????????

Posted By: Velocity Motors
Date Posted: October 25, 2002 at 12:46 AM

Is it only the UNLOCK that doesn't work ? If so, then check to see that the unlock relay is not stuck. Disconnect from the harness and switch the relays over or use a different relay.

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Jeff
Velocity Custom Home Theater
Mobile Audio/Video Specialist
Morden, Manitoba CANADA