I thought this was the starter relay...?
I have a front-engine diesel, 2008 6.7 Cummins in a Freightliner chassis.
After consulting the shop manual, I was pretty sure I had located the starter relay (see photo). I disconnected one of small wires and the engine started right up, but I did get a CEL and a STOP dash light. I tried it again with the other wire disconnected and again, the engine started right up with a CEL that went out after a couple of seconds.
If this isn't the starter relay, what is it? And if it is the starter relay, why does the engine start anyway with either of the smaller wire disconnected?
A little puzzled here.
Full -Time On The Road
2008 Tiffin Allegro Open Road 35QBA
6.7L Cummins ISB Tuned to 300HP