Number plate lights...

Hi

Does anyone know why my number plate lights don't work?

I replaced both bulbs; lamp units were replaced last year and are still as new.

I assume the fuse is either no3 or no4 (5a) and both of these are OK. I checked all the other 5a fuses for good measure.

Is there a secret fuse I don't know about? MoT tomorrow.

Thx

I've the same problem which I haven't had time to look at yet but I've read elsewhere that:

1 when both bulbs fail, the canbus only sends 0.5 volts to the contacts. If you replace the bulbs, it still doesn't work until the car is stopped and re-started as it only looks at the bulbs on start-up

2 Others have spoken about the wire failing where it comes through the tailgate (avant) or bootlid (saloon).

3 the prongs on the bulb holder which lean against the brass contacts are apparently easily accidentally bent the wrong shape so don't properly touch the brass bits.

4 When removing the cr@p screws holding on the bulb holder, if you lose the tiny washer behind the screw, then the holder isn't tight enough against the contacts for a good connection.

I suggest you check the voltage first if you've access to a multimeter.

Jusr realised how old your post is. Did you solve the problem and, if so, what was the answer?