Check Engine Light Only Comes on when its cold
So this only happens to me when my truck is left outside over night and it is cold, say 20 or below....
When I start the truck my CEL light comes on and 2 codes are tripped... P0573 Brake switch and P1400 Differential Pressure Low. If I immediately clear the codes and restart the truck, no codes.
Any have any ideas on why the cold may cause this to happen? Dealer say everything checks out.
2008 Black H2