bigrigr, sorry to be so late answering, just got home, the part is made by "alliance", the # ABP-N83 323053, got it at Freightliner, VanBuren,Ar., works much better than the RM original, I installed it myself but be careful, has to be bent to fit. Herb..what part did you get At Freightliner? The a/c cycling switch? Does it have to be a RM part only? Or does somebody else make one that works? I got my new Capacitor in the mail today, to bad my truck is in the shop for repairs till probably next week now....
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I should have mentioned also to put extension wires on the capacitor wires and run them inside the engine compartment and mounted the new capacitor in there!!! Oops

I know it really isn't funny, but I just can't help it!
Funny, thats exactly what i thought i would do when the capacitor goes out again.... I am holding down the select and right arrow keys and nothing happens. This is the '09 model mts t4-6, doe the codes still work for this model? Thanks for all te helpThe z123 will come up on the screen once you get into the super secret mode. Then you scroll through the alphabet then select z then 1 then 2 then 3.
I should have mentioned also to put extension wires on the capacitor wires and run them inside the engine compartment and mount the new capacitor in there!!! Oops
Yessir, an forgive meDid you shut power off first?
You should copy all these directions into one page and create a RigMaster Resource.If your batteries are not in good condition the Rigmaster may keep starting and stopping. That's always the first sign something is wrong. Most of the time I find one battery dragging down the rest. I carry a battery load tester with me. Also, you can test each battery by just disconnecting the positive lead, holding it up and doing the test.