Electrical problem in car and tachometer

Tachometer, roof light, rear lamp, door lock all shut off for a while and then go back to work again

Hi Scotty Kilmer
I have this problem in my car but i couldn't find where is it exactly so could you please help me to solve it
The tachometer, rear light, roof light, door lock, and window switch all shut off for a few seconds and then go back to work again

check for a short in the ignition switch wiring, pray it;s not a body control module computer going out

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Thanks for replying
I checked the ignition switch wiring its good doesn't have a short
But i have a question
Is the body control module computer inside the instrument cluster?
Because when I removed the instrument cluster the door lock and rear lamp and roof lamp and window switch all shut off

false