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2002 Mercedes Benz S430 Factory Alarm

Tiny
JOHNNY KING
  • MEMBER
  • 2002 MERCEDES BENZ S430
  • V8
  • 2WD
  • AUTOMATIC
  • 105,000 MILES
When I set my alarm with my remote, the alarm automatically goe's off with lights flashing. When I dis-arm and re-arm with my remote, the alarm automatically goe's off again with the lights flash. Each time I arm the alarm system, this hapens. This is a factory alarm. I don't mine donating but lets see how it work first

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Johnny
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Tuesday, February 23rd, 2010 AT 2:20 PM

3 Replies

Tiny
DAVE H
  • MECHANIC
  • 13,383 POSTS
Hello .. thanks for the donation .. much appreciated

There are numerous reasons for the alarm to trigger by itself .. could be a bad sensor/door switch etc, etc. .. I would have the vehicle plugged into a diagnostic computer to check for alarm fault codes stored on the cars PCM (computer)


https://www.2carpros.com/forum/automotive_pictures/266999_merc_6.jpg



hope this helps


https://www.2carpros.com/forum/automotive_pictures/266999_AAA2_999.png

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Thursday, February 25th, 2010 AT 6:01 PM
Tiny
JOHNNY KING
  • MEMBER
  • 2 POSTS
Thanks Dave
I did go to a Mercedes shop today 2/25/10 and they found that my R&R PSE Pump (pump that open and close the trunk and doors) had some type of internal leaks which cause the computer to re act as if a door or the trunk was open causing the lights to flash.
Thanks Again
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Friday, February 26th, 2010 AT 12:36 AM
Tiny
2 LINSEY
  • MECHANIC
  • 287 POSTS
We appreciate your donation and look forward to helping you in the future. Thank you
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Monday, March 1st, 2010 AT 4:22 PM

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