Where do I find the wiring diagrams for my '94 C280? I specifically want to check the EGR nodes to see if they're getting power (perhaps using a simple multimeter). Also want to know which fuse takes care of the EGR's. The car failed the NOx part of its most recent AirCare test (the first ever failure) and according to my mechanic it was because of a blown fuse... I want to check it myself too.

Thanks in advance.