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Discussion Starter #1
I have been puzzled for some time why my car alarm seems to be sending out a pulse when my engine is off and the doors are not locked (the alarm is off).
I only notice this because I have a battery operated radar detector that I occassionally forget to turn off when I leave my car unlocked in my garage. Ya, one of these days I'll read the detector's instructions and set the motion shut-off.
Anyway, when I come back the radar is beeping in a repetative manner of five pulses. It shuts off a few seconds after I start the car. My question is why is the alarm working (and using up my battery) when it is not turned on?
 

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I have no clue what you are saying. Rephrase please?

Are you saying the radar detector, which you leave activated, is sensing a pulse coming from the alarm when it is off?
 

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Let me take a crack at interpreting what he's saying.

His radar detector can detect the pulses from the alarm. This isnt normally a problem as both are rarely on at the same time, but he just forgets to turn the radar off.

Yet, the radar picks up signals from the alarm even though the alarm isnt armed.

Did i get it right?

Now, have you considered the possibility that it's not picking up your car's alarm, but something else, like a garage door sensor?
 

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The motion detector inside the car is causing your radar detector to go off. The motion detector is the protruding enclosure in the middle of the headliner with little "vents" on the sides for the beams to pass through.
 

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Discussion Starter #5 (Edited)
Let me take a crack at interpreting what he's saying.

His radar detector can detect the pulses from the alarm. This isnt normally a problem as both are rarely on at the same time, but he just forgets to turn the radar off.

Yet, the radar picks up signals from the alarm even though the alarm isnt armed.

Did i get it right?

Now, have you considered the possibility that it's not picking up your car's alarm, but something else, like a garage door sensor?
Yes- it looks as if the car alarm's motion sensor is operating even when the alarm function is turned off, i.e. the doors are unlocked. The pulse my battery operated dector is picking up is not from an outside source, as it happens in any location. I am only concerned because I do not want the power drain when I have it locked in my garage for a month or so.
 

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I have been puzzled for some time why my car alarm seems to be sending out a pulse when my engine is off and the doors are not locked (the alarm is off).
I only notice this because I have a battery operated radar detector that I occassionally forget to turn off when I leave my car unlocked in my garage. Ya, one of these days I'll read the detector's instructions and set the motion shut-off.
Anyway, when I come back the radar is beeping in a repetative manner of five pulses. It shuts off a few seconds after I start the car. My question is why is the alarm working (and using up my battery) when it is not turned on?
I'd get your radar detector checked out. If our alarms were capable of setting off radar detectors then a) a whole bunch of us would be complaining about it, and b) everyone driving by our cars in a parking lot would get a false alert.

Either something else is setting off your detector, or it has fallen out of adjustment.

For reference, my alarm has 0 effect of any of the 3 radar detectors I own (2 Escorts and a V1), including a 10 year old super-sensitive Passport.

d-
 
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