Automated Tranny Pros and Cons

LOL looks like they just pulled the plug

 

13 speed Eaton. This is the fourth time we've had the unit in for intermittent loss of communication to the TCU. I've driven this thing a few hundred miles in the last few weeks and haven't been able to get it to act up. But it has logged faults from it. Freightliner had us replace TCU, X-Y shifter, CPC, ect... Now they wanted us to tear apart the OEM harness and see if we can find the cause of the 1939 problems. This truck is very odd though, I unplugged a J1939 terminating resistor while driving down the interstate and it didn't skip a beat or log a single fault.

Outside OEM harness.

13 speed Eaton auto

 

Sighhhh, yeah wiring harnesses and pretty much any electrical fault is a royal PIA to digagnos and deal with. Sounds like you found the fault though...

 

Those 10 spd Eaton Autoshifts we had, they changed the power source to direct from the battery to avoid that J1939 code, it worked on some, not all.

 

I can agree with half of that. Guess which half.

 

more cons than pros

 

I skipped to the end about 6 minutes in.
Are you back with RR?