Alarm system light on

2004 JEEP CHEROKEE
220,000 MILES • 2.8L • 4 CYL • 4WD • MANUAL
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BILLYBOS
  • MEMBER
  • 2 POSTS
Alarm system light remains on when driving.
May 24, 2019 at 12:09 AM
Repair Safety Notice: This information is for general instructional purposes only. Vehicle repair can be dangerous. Verify all information, follow manufacturer service procedures, use proper tools and safety equipment, and consult a qualified repair shop when needed.
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
Welcome to 2CarPros. The light staying on signals that a part of the anti-theft system has a hard failure. The first step would be to use a dealer level scan tool to access the security system (SKM) and see which part(s) are not operating. There are multiple parts in the system so no real way to say "It's this part" without scanning it. Don't try disconnecting the battery as a reset, it could stop the vehicle from running at all if the immobilizer tripped due to the faulty part.
May 24, 2019 at 11:31 PM
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BILLYBOS
  • MEMBER
  • 2 POSTS
thanks, I will find a auto electrician to scan the system.
May 25, 2019 at 10:14 AM
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STEVE W.
  • AUTOMOTIVE REPAIR CONTRIBUTOR
  • 15,146 POSTS
Most of the repairs are not that hard, but it depends on which part is bad as to if you need to do any programming on the replacement part.
Please let us know what they come up with and good luck.
May 25, 2019 at 11:37 AM