Can someone confirm that the canbus light warning system replaces the old UK regulation of a trailer indicater bulb failure please.

So I believe; it certainly worked when I had poor contacts in my trailer plug

The regs I believe only said there had to be system in place to warn of the failure of a turn indicator bulb, it doesnt specifiy how that is achieved.

If you google the topic , all the trailer/caravan type sites list several methods which provide the necessary warning.

Of course the old methods did actually remind you that you had a trailer attached when indicating which a modern "bulb failure" system does not.

Edited 19 September, 201213 yr by rarrar

Yes it does.

Confirmation from here too.

What lights does it cover? I had a faulty stop light on my caravan and no warning.

Fred

Fred, it certainly covers the indicator bulbs, but I would have thought it should cover all the bulbs.

My car has shown all bulbs, I had a side light out on the trailer and when I used the indicators the side the duff bulb was on made the indicator arrow flash fast, on the caravan it was a brake light and it did the same.

There must be a way of programming the ecu to report which bulb. On the Audi it puts up a bulb symbol with an X on it and tells you which bulb, I would imagine this technology is in the Skoda just not activated. In addition to the warnings the Audi will do a fluids and bulb check when start the car whilst it is ticking over, just press the button on the side of the speedo or rev counter, can't remember which.

When I hooked up a borrowed trailer to our Yeti I immediately got a message in the dashboard saying "Check trailer right indicator" or something like that. At least the message included information about exactly which indicator it was, and that it was on the trailer.

Is the trailer option coded correctly in the canbus system? If you are not getting error messages about broken bulbs on the trailer, try to find somebody with VCDS to check that the towbar is coded correctly.