timscues Well-Known Member Supporting Member Joined Feb 23, 2011 Messages 370 Reaction score 2 Location charlotte Aug 27, 2018 #1 is there a test or how can one tell if a diode in the harness under the tach has gone bad?
MaxMidnight Well-Known Member Supporting Member Joined Dec 1, 2007 Messages 3,377 Reaction score 1,085 Location Cumbria, England. Aug 27, 2018 #2 See Section 7-15 of the Service Manual