Lude Generation

was told at night my rear drivers side light was out
put a new bulb in but nothing!!!
the indicator works fine as does the reverse light and the brake light(which is the same bulb)
but turn sidelights on or main beam and the offside rear light is out

checked all fuses and i have no cell light being thrown??

can only think it is the little brown box in the cluster, any one got a spare???

Doesn't need to be a JDM one. And you only need the bulb holder, not the lense. Might have one. I'll have a look tomorrow if no-one's got one by then.

Worth checking you've got a feed to that box you're talking of.

Are you sure you have the correct bulb?
I once replaced a bulb. It fitted perfectly but didn't work.
I eventually discovered that the end should have had two contacts instead of one (or vice-versa, can't remember).

*Random examples taken from the web for illustration purposes only.

...alternatively, if it only half works, should it have a double filament?

Not a Halfords bulb is it? I bought a pack of two and both looked fine but were fubar. Got a multimeter to test?

it is the correct bulb. from a local motorfactors and he tried my bulb that i thought had blown.
so i have three off the same double filament bulbs and all have two contacts on the bottom and all have been tested and work fine.
something is wrong with the bulb holder part of the cluster there is feed getting to the contact that lights the brake filament but no feed going to the contact for the main light filament.

there is a difference betwwen the ukdm bulb holder and the jdm one. a friends lude was a ukdm but before he bought it everything had been fitted to make it look jdm, so when his rear lights started giving him trouble he fitted clusters from a jdm and the 4ws light came on. so i went to him with the clusters from my old ukdm and when we fitted them his 4ws issue was gone and the light went out.
so there must be some difference in the circuit boards in the small boxes to be found in the bulb holders

is it the telltale unit in the bulb holder

The lights shouldn't have anything to do with 4WS. I'm sure that should be on a different loom even

i am sure you can get some that dont have the telltales

is the telltales the brown box? took this apart and it is just a small copper coil fitted to a mother board with 4 tails coming out to a plug.
all the ukdm ones i have seen are white and the jdm ones are brown and when i tried fitting my ukdm ones on the jdm it threw a cell and the 4ws light came on and 4ws would not work, so i put the jdm ones back on and reset the ecu and all started working fine again.