1995 GMC C2500 lights flashing draining battery

Tiny
NDAMRON22
  • MEMBER
  • 1995 GMC C2500
  • V8
  • 2WD
  • AUTOMATIC
  • 180,000 MILES
I bought the van about a week ago and I think it has a aftermarket alarm system that doesn't work anyway when I start the fan the locks lock and unlock constantly and when they do the lights flash like hazzard lights when I kill the vehicle about five minutes later the hazzard lights start blinking and you have to start it to stop it I just keep disconnecting the battery but that is getting very annoying is there anything I can do to stop this from happening plz help me
Monday, February 2nd, 2015 AT 9:44 PM

4 Replies

Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
The first thing I would recommend is to remove the aftermarket security system to see if that takes care of the problem. If it doesn't, I would question the body control module (BCM).
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Tuesday, February 3rd, 2015 AT 5:13 AM
Tiny
NDAMRON22
  • MEMBER
  • 3 POSTS
There are two wires that go to bcm that I have to touch together to start any solutions couldn't find the alarm module
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Tuesday, February 3rd, 2015 AT 7:15 AM
Tiny
JACOBANDNICKOLAS
  • MECHANIC
  • 110,176 POSTS
I hate to say it, but without seeing the wires or the schematic for the aftermarket security system, I don't have any recommendations.
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Friday, February 6th, 2015 AT 8:51 AM
Tiny
NDAMRON22
  • MEMBER
  • 3 POSTS
Just dont lock the doors
it wont do it
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Saturday, February 14th, 2015 AT 6:49 AM

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