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Alarm system light on

Tiny
BILLYBOS
  • MEMBER
  • 2004 JEEP CHEROKEE
  • 2.8L
  • 4 CYL
  • 4WD
  • MANUAL
  • 220,000 MILES
Alarm system light remains on when driving.
Friday, May 24th, 2019 AT 12:09 AM

3 Replies

Tiny
STEVE W.
  • MECHANIC
  • 13,475 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.
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Friday, May 24th, 2019 AT 11:31 PM
Tiny
BILLYBOS
  • MEMBER
  • 2 POSTS
Thanks, I will find a auto electrician to scan the system.
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Saturday, May 25th, 2019 AT 10:14 AM
Tiny
STEVE W.
  • MECHANIC
  • 13,475 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.
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Saturday, May 25th, 2019 AT 11:37 AM

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