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These remotes fobs transmit on Infrared and an RF signal (Radio Frequency)
If a button were stuck ON /shorted then that could drain the remote fob battery/s
There is a test for an infrared remote fob through a digital camera as depicted in the video below.
[YOUTUBE]zQhwvjw29NA[/YOUTUBE]
There is also a test for RF in the picture below, not necessarily proof of the presence an actual RF signal but its presence would confirm consumption of power via a remote fob button.
The RF sounds like this here… http://homepage.eircom.net/~decdec/fobsound.wma
If either signal is detected while any of the remote fobs buttons ARE NOT being intentionally depressed then that’s the only way you could detect a drain in a remote fob, without special equipment.
Otherwise, are the correct and good quality batteries being fitted into the remote…OR…is it that it’s the car batteries that’s being drained and the remote fob batteries are not the problem.
Dec
If a button were stuck ON /shorted then that could drain the remote fob battery/s
There is a test for an infrared remote fob through a digital camera as depicted in the video below.
[YOUTUBE]zQhwvjw29NA[/YOUTUBE]
There is also a test for RF in the picture below, not necessarily proof of the presence an actual RF signal but its presence would confirm consumption of power via a remote fob button.
The RF sounds like this here… http://homepage.eircom.net/~decdec/fobsound.wma
If either signal is detected while any of the remote fobs buttons ARE NOT being intentionally depressed then that’s the only way you could detect a drain in a remote fob, without special equipment.
Otherwise, are the correct and good quality batteries being fitted into the remote…OR…is it that it’s the car batteries that’s being drained and the remote fob batteries are not the problem.
Dec
Is there not a utube video fornenst you in post 2 above, perhaps the computer you are using is blocked from accessing utube, try this link here… Key fob IR test - YouTube
How did you get on with the Radio (RF) test?
Dec
Cheap batteries? Keys in pocket & button being constantly pressed?
Not cheap batteries. Tried Duracell,maxell,energiser and Varta lithiums. The pocket thing is doubtful coz when I use the spare it doesn't happen. What it could be is the pins in the battery compartment might be shorting the key. So I switched compartments with the spare and taped a new set of batteries to the key just incase they die whilst I'm out. If that doesn't work, I think I need to order a new one :/
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