97 GMC Jimmy with CompuStar Starter/Alarm problem

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Forum Name: General Discussion
Forum Discription: General Mobile Electronics Questions and Answers
URL: https://www.the12volt.com/installbay/forum_posts.asp?tid=1281
Printed Date: July 26, 2025 at 11:34 PM

Topic: 97 GMC Jimmy with CompuStar Starter/Alarm problem

Posted By: Fever
Subject: 97 GMC Jimmy with CompuStar Starter/Alarm problem
Date Posted: June 12, 2002 at 10:59 PM

Hi there.. I just got my Compu STAR remote starter, alarm and pager combo installed.

Everything works great, except for the fact that when the remote starter starts the engine the A/C / Heater fan do not start up. Those will only start when the key is turned.

Is this a limitation of the 1997 GMC Jimmy or did they forget to attach the green wire?

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Everybody's got the Fever ...

Replies:

Posted By: teknishn
Date Posted: June 13, 2002 at 5:09 AM

Sounds to me like there's more than one Ignition wire in the column. That's becoming more common these days. If it does, it needs to be properly isolated from the other Ignition and/or Accessory wires, either via a seperate proper (+) output from the start module, or via a relay. Most newer remote starters have outputs for two or even three extra Ignition and/or Accessory circuits. In other words, if the remote start module only has one output for Ignition, don't just piggyback it to the other Ignition wire in the column.

teknishn

Posted By: Velocity Motors
Date Posted: June 13, 2002 at 5:22 AM

The wiring diagram that I have tells me that the Heater/AC wire is the ORANGE in the ignition harness not GREEN. Test the ORANGE wire for heater /ac controls by giving this wire 12 volts and have the heater /ac on while doing this and the key off.

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

Posted By: Fever
Date Posted: June 15, 2002 at 7:00 AM

Thanks I will try that... Much appreciated!

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Everybody's got the Fever ...

Posted By: Velocity Motors
Date Posted: June 15, 2002 at 7:49 AM

Test this wire first for circuit verification and that it outputs 12 volts and then do the test outlined above.

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