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Old 12-25-2012, 06:53 PM   #1
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Alpine Owners Club
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Loud Warning Sensor

2004 40 MDTS. When first turning on the ignition, prior to starting the engine, there is a loud obnoxious warning tone. I would like to disconnect this as the warning message lights will still provide warning messages. Does anyone know where the this item is located, so I can disconnect it?

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Old 12-25-2012, 08:10 PM   #2
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Sometimes the warning devices are part of the loop if it disconnected it might cause issues you can locate it by getting under the dash and get someone to turn the key and listen for it then just tape it off it will tone it down and will still be hooked in

Mark Anderson - Nebo NC - western NC - RV Restoration tech - 9 Doggies - Outdoors person
1990 33ft Wilderness Cimarron 33X
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Old 12-25-2012, 08:39 PM   #3
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It's the usual "no output from the alternator" warning you get when the ignition is on. If you disable this you won't know if you have an alternator failure going down the road. My alarm is on the firewall in front of the accelerator pedal and you can rotate the cover on it to change the volume. But other systems use the same alarm so you may want to think this through.
John and Mary Knight
2015 Ventana 4311, 2015 Cadillac SRX
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Old 12-26-2012, 09:02 AM   #4
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I put a piece of tape over mine and it cut the noise down to a tolerable level.
Wayne & Kathy
05 Alpine 40FDQS #75330 Towing 24' car hauler, 2012 Spyder, 2003 Harley FatBoy
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Old 12-26-2012, 07:25 PM   #5
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Interesting. Neither my 06 or current 08 had/have this alarm. Have a buddy w/an 06 whose alternator died- other than the dash voltage reading he got no alarm till there were low voltage operating problems.
Seems like adding such an alarm, w/a no-engine-running relay cut out would be a handy thing.
Baja-tested '08 2-slide 36'
Alpine: The Ultimate DIY'er Project
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Old 12-26-2012, 07:33 PM   #6
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I know this is the Alpine forum and I may be out of place here, but are you sure it's not a low oil pressure warning? Ironically, every diesel I ever drove had one with the exception of the one I drive now.
Craig & Donna
2005 Beaver Monterey Laguna IV (aka The Hotel Monterey)
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Old 12-27-2012, 10:05 AM   #7
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Thank you. How did you access it?
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Old 12-27-2012, 10:09 AM   #8
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Testing the alarms is part of the power on self test on most vehicles today.

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