Indicator lights on dash not working

[panalvan]

The indicator lights on the dash don't work no problem with the lights on the van and the hazard lights work but nothing on the dash I've checked if there's power to the bulbs there is but when plugged back into the builds nothing.what is the voltage ment to be as when I check the voltage when flashing it goes down to 10 volts then up to 12 volts as the indicators flash
Cheers

 

[Kaboosie]

Sounds like a bad earth or faulty bulb holder. Try earthing to bodywork.

 

[Whistler]

You're not using LED indicator bulbs are you?

 

[panalvan]

I'm using the original holders and bulbs

 

[Whistler]

I meant the actual indicators. I was using LED bulbs and everything worked spot on accept the dash warning lights. Took an out and they worked. They now don't work for another reason I'm unsure of.

 

[panalvan]

Everything is in its original state so bulbs are being used