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Cannot disable alarm

Tiny
AR420
  • MEMBER
  • 1997 LEXUS ES 300
  • 3.0L
  • 6 CYL
  • 2WD
  • AUTOMATIC
  • 300,000 MILES
My neighbor is working on my car and the battery died in the process. Now upon installing a new battery, the alarm goes off every time she connects the battery. I bought the car without a key fob. Is there a solution?
Wednesday, August 7th, 2019 AT 4:33 AM

1 Reply

Tiny
KEN L
  • MASTER CERTIFIED MECHANIC
  • 48,363 POSTS
Yes, I would try a hard reboot of the system, which as you hold the negative battery cable against the positive battery post, this discharged the capacitors and allows the system to come back to default settings. This guide will help:

https://www.2carpros.com/articles/how-to-reset-a-security-system

Please run down this guide and report back.
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Thursday, August 8th, 2019 AT 11:35 AM

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