command start blowing ign fuse

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=112029
Printed Date: August 19, 2025 at 3:58 AM

Topic: command start blowing ign fuse

Posted By: purplehavoc56
Subject: command start blowing ign fuse
Date Posted: March 01, 2009 at 8:45 PM

Hey.

Developed a problem withthe command start on my 99 GMC (classic body style) pickup.

The remote model is a CS-555,no doors hooked up,just start and stop.Problem is it blows one of the 30 amp ign. fuses instantly.I have checked all the wires for shorts and found nothing.

I unplugged the module and the by-pass,replaced the fuse,plugged the by-pass in first,then the module and wham.Blew the fuse.

Does it sound like my module is dead or could it be a problem else where?

thanks

Replies:

Posted By: i am an idiot
Date Posted: March 02, 2009 at 6:07 AM

Without us knowing what wires of the vehicle you connected to the remote start module, it will be hard for us to help you. Post the wiring info you used.

Posted By: purplehavoc56
Date Posted: March 02, 2009 at 7:27 AM

I will have to have a look and see what wires run where.The system was already installed in the truck when i bought it.The guy i purchased it from said it did work,then one day up and quit.

Posted By: chadwa2003
Date Posted: March 02, 2009 at 6:34 PM

The 30 amp ignition fuse that you are talking about is that one of the fuses coming off the command start or the actual vehicle ignition fuse?

Posted By: purplehavoc56
Date Posted: March 02, 2009 at 7:26 PM

It is one of the two 30 amp in line fuses coming from the remote start to the truck ignition harness.

Haven't had a chance to check the wires as it is dark when i get home from work.

Posted By: chadwa2003
Date Posted: March 02, 2009 at 8:01 PM

When you start the truck with the key is it hard to turn over?
You could have an issue with the starter motor which is drawing more current then the command start is capable of.
Also it could be an issue with the brain maybe the is a burnt trace inside the brain which is a dead short

Posted By: purplehavoc56
Date Posted: March 02, 2009 at 9:05 PM

Truck spins over easy with the key and the starter was new in sept.

I was kind of thinking a dead short in the module as it zaps the fuse hard.Last time it blew the fuse i heard the starter solenid jump.