Rear numberplate lights not working

[LanHulk]

Hi, my rear numberplate bulbs weren’t working, led from prior owner. I’ve swopped them and still nothing. Is there a fuse ? Other lights are ok.

 

[Sasquatch]

Have you checked for voltage at the bulb holder?

 

[LanHulk]

Not yet. Will the weekend

 

[LanHulk]

I have just under 12 v at the connections on the bulbs. Which I’m guessing means it’s the bulbs. Which means the old bulbs I had had gone and the new ones have too. Note the are led. Does it need normal filament bulbs ?

 

[JOG]

I think it is a complete unit that gets changed and quite expensive for what they are!

 

[manfrotto]

I have just under 12 v at the connections on the bulbs. Which I’m guessing means it’s the bulbs. Which means the old bulbs I had had gone and the new ones have too. Note the are led. Does it need normal filament bulbs ?

LED bulbs are normally polarity sensitive, so if they dont work one way try flipping them around.

 

[ChrisBell]

Not sure if possible but I had a bulb out on my custom. Got replacement led complete units for around £15 for pair from memory from Amazon. Super bright. No fault codes etc. may be worth a shout? I had quick look and sure you could get ones to fit....

 

[LanHulk]

It’s very odd, I’ve got the old style bulbs which were standard and tried them, still don’t work. I’ll have a look at the polarity on the leds. It’s odd both aren’t working

 

[DXX]

If two sets of bulbs aren’t working it’s not the bulbs.
Use a multimeter across the bulb holder and check for voltage, if nothing connect the multimeter to a temporary ground on the chassis and check for voltage.

 

[JumpShip]

If its the same as our t5.1 then the contacts on the bulb holders fail .
They push back when you push the bulb holder into place.
I soldered wires on the bulbs and straight onto the contact wires ...job done !