Factory Anti-Theft System activated, how do I get the lights to stop flashing while driving?

Tiny
MELISSA GILL
  • MEMBER
  • 2006 JEEP GRAND CHEROKEE
  • 5.7L
  • V8
  • 2WD
  • AUTOMATIC
  • 125,000 MILES
It has a recall on my key ignition and got it replaced and had replaced the vehicles battery I still couldn't get vehicle to turn over. It ran for a couple seconds then turned off. Then it wouldn't start again. I have now replaced and reprogrammed everything from the PCM, Immobilizer, another key ignition and key fob to finally get the vehicle to start and run. But now I cannot get my factory anti-theft alarm to shut off. I have pulled the fuse for the horn so you cannot hear it right now. But when I get in vehicle and start it up and drive down the road, my outside headlights, and all exterior security lights flash for the whole trip. When I park and shut the vehicle off and get out of the vehicle the security alarm will go for about maybe 3 minutes then shut off. How do I get my lights to stop flashing while I drive? Help
Thursday, September 1st, 2022 AT 1:03 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 47,615 POSTS
There is an integrated power module that has gone bad which needs to be replaced which is easy to do because it itself-initializes, here is the location and how to replace it in the images below. Check out the diagrams (below). Please let us know what happens.
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Friday, September 2nd, 2022 AT 7:21 AM

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