How does it sense a blown light. Is it a normal filament bulb, that would
I'd imagine be easy to sense, but if its some kind of led it could still
draw current but not actually work!
Brian

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The Sofa of Brian Gaff...

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On Monday, November 20, 2017 at 1:07:33 PM UTC, Jim GM4DHJ ... wrote:
lost a dippd beam bulb the other day .....only knew by the reflection
from
the car in front....I thought canbus was supposed to warn you of
this....or
is it just another digital thing that doesn't work properly ? .....

CAN bus is just a data bus to transfer sensor info etc. If the vehicle
doesn't implement sensing for a blown bulb then you won't get a warning.
So it's going to vary from vehicle to vehicle.