05 cobalt, compustar 1wsh-s
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=89120
Printed Date: May 15, 2025 at 8:22 AM
Topic: 05 cobalt, compustar 1wsh-s
Posted By: xtremej
Subject: 05 cobalt, compustar 1wsh-s
Date Posted: January 17, 2007 at 12:51 PM
I am sure this has been discussed but after a search or to I can't seem to find what I am looking for so. I am installing an alarm on this car, it has not starter wire as everbody knows, I am wondering how everyone else hooks these up when installing an alarm? i was thinking instead of a starter kill since it has one kind of how about splitting the ignition circuit. Be gentle alarms are not my thing.
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Replies:
Posted By: Twelvoltz
Date Posted: January 17, 2007 at 12:51 PM
The starter wire is under the hood at the PCM, yellow wire, here is DEI's description:
CHEVROLET, COBALT, 2005, Starter
The PCM (Powertrain Control Module) is on the driver side fender, in front of the underhood fuse block.
Posted By: xtremej
Date Posted: January 17, 2007 at 12:51 PM
Its in the blue plug, got it. Just looking for a heads up. Thanx -------------
Posted By: xtremej
Date Posted: January 17, 2007 at 5:08 PM
I have found all 4 door triggers, my problem is the pulse when they are opened to ground seems not be strong enough to trigger alarm. I have ground RED / white trigger input wire and it will trigger. I need a diagram of how to wire up a relay to strengthen the ground pulse I think, not 100% sure though . Any ideas I am installing a compustar 1wsh-s, alarm only. -------------
Posted By: Evolution-UK
Date Posted: January 17, 2007 at 5:12 PM
Where did you pick up the wires?
Posted By: xtremej
Date Posted: January 17, 2007 at 5:36 PM
I got them at the bcm, found the problem. The rear door pins trigger throught fronts. computech had four different wires listed for all four doors,
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Posted By: Evolution-UK
Date Posted: January 17, 2007 at 6:01 PM
2 wires at the bcm. diode isolate them with the bands on the diode at the bcm side.
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