Chevy Tahoe, too much current

[CARPARTS]

Hi

Chevrolet TAHOE from 2004

attached some pictures....

Dash takes too much current (in rest) for about 0.5 Amp?re.
So there is some component(s) what make this current loss.
Battery is flat after 1 day.
Without connecting the dash, all is oke, so problem is inside the dash. it seems also to be a well known problem...

Anyone got some solution ?

[88diablo]

Fit relay on power supply to dash from ignition so only powered when ignition is on?

Not correct fix I know but if it works.....

[tranzavanza]

measure the current drawn with your multimeter on the plug and remove the caps next to the plug. 1 at the time until the current draw stops. and then track that circuit.

[Lidahus]

Does the processor go to sleep mode after ignition off?