dash probs

all dash electrics seem to work fine until the lights are turned on, then dash lights go out and the mfa and rev counterstop working, sometimes the indicator relay clicks flat out even when not indicating.
have removed fuse box and all seems clean, re terminated earths situated by the fuse box.
All exterior electrics work fine.
the large white plug to fuse box seemed a little corroded but have cleaned, not sure if well enough though.
seems hard to comment on but any ideas,  i have replaced the light switch,
is it possible the instrument cluster is at fault?
cheers jay

there's an earth behind the dash… could be that  :dontknow:

does sound like a dodgy earth problem to me though

is that the earth cluster right next to the fuse box, or is there another one somewhere else?
cheers jay

another one, it's behind the dash clocks somewhere

just recall some people having issues due to this

cheers i'll have another look

Try this - I had this problem on mine, it was the small earth wire that is attached to the Rocker cover had come off.