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1997 SL320 Sport
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28 Posts
Discussion Starter #1
Guys/Gals (if any) ...and idea what would make my alarm go off...or..where should I look first? The problem is I will unlock the door (with key I have no remote key yet) Then go to start the car, and the horn will start..beep beep beep...the car WILL start! very odd I know...The only way to silence is to put the key in the door...any thoughts would be appreiciated..thanks
Michael
 

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Departed 1998 SL500 (and the Pano is in Bogota)
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11,111 Posts
This may not be your case but I'll share what I had experienced with you.

I went shopping and locked the car with the key at the door which also locks everything and set the alarm etc. When I got back, I unlock the trunk with the key to put stuffs in, that also unlock the doors (the knob popped up). But when I went to open the door, the alarm sounded. I had to use the key to lock the door, then unlock it again, and everything back to normal.
 

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05 C215 CL 500, 96 SL 500 PANO,96 W124 220CE,03 Smart 450 Cabrio, 96 W124 220CE, 07 Ford Transit!
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431 Posts
according to the manual for mine, the alarm can only be disabled with the fob. The key is only for the doors in an emergency. If i unlock mine with the key, the alarm will sound
 

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2011 GLK,2007 S550,2003 S55,2008 CLK,2009 C300,1996 E300,2005 E320,2002 E3
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1,355 Posts
Smh.... I haven't locked my doors in 3 weeks due to this same problem
 

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1997 SL320 Sport
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28 Posts
Discussion Starter #5
My model is 1997 sl320, the alarm sounds just as you turn the key, as if..the car thinks its being stolen. My thoughts are ..as you said tommy..the alarm isnt being shut off...wheres the module? anybody know what pin should be recieving what signal/voltage?
 
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