The Breakroom > The Water Cooler
Car magic
NormanV:
Here's a strange thing, my neighbour has a new car and when I press the remote locking button on my keyfob his side lights come on. Earlier today as I drove past his lights also came on. Any thoughts on what could be happening here?
Muzzerboy:
Have you tried the door to see if you can get in? Are they both the same brand? I can't understand why the lights would come on simply driving past - perhaps a coincidence? Wrap the fob in foil and see if it really is causing this.
NormanV:
Try his car door? And get arrested :D
I'll try the foil, and no they are not the same make mine's Volvo his MG
BillTodd:
At a guess, there's a limited number of free radio bands that the keyfobs can use , making clashes likely.
The rx/tx chipsets are going to be the cheapest available , so likely the same in both keys.
The 'codes' are ultimately only numbers of fixed length and without international standards, duplication is easily possible
Most of the above is still true for metal keys, except you don6 normally try them in other people's locks.
awemawson:
My Disco2 key fob uses the same frequency as my electric gate alarm meaning that while the gate is in motion I can neither lock nor unlock the vehicle.
I suspect also that the gate alarm wakes up the 'Body Control' computer on the Disco meaning that standby current discharge increases potentially flattening the battery if the Disco sits unused for more than a few weeks.
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