2005 honda crv engine codes p2646 86-1 83-1 66-1

Question

these codes were checked at auto zone on my cdv they said it was the brain can you give me more info

Answer 1

P2646 Oil pressure switch circuit low voltage

This is a common code that if cleared and tried to be duplicated it does not return or can not be duplicated. Replace the rocker oil pressure switch these are common switch failure.  and make it a hobby.