FACTORY ALARM

2002 Mercedes Benz S430

Tiny

Johnny King

February, 23, 2010 AT 2:20 PM

Electrical problem
2002 Mercedes Benz S430 V8 Two Wheel Drive 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

Help
Johnny

FOUND 3456 RELATED QUESTIONS

3 Answers

Tiny

Dave H

February, 25, 2010 AT 6:01 PM

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)


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



hope this helps


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

Tiny

Johnny King

February, 26, 2010 AT 12:36 AM

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

Tiny

2CarPros Linsey

March, 1, 2010 AT 4:22 PM

We appreciate your donation and look forward to helping you in the future. Thank you

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