hello, i have an R40TT truck with a 2E and 5D showing on display. 2D refers to 2e - traction motor temperature out of range and after reading your posts i have a better idea what code 5D is. is this common? to have multiple error codes displayed? also which error code should i troubleshoot first?

regards
Jay

UPDATE: 05/11/2017
took care of 2E issue. had VFC tested at FSIP and tested good. truck turns on, completes self test, then displays 5D. all hydraulic functions work. however, i'm limited to 1mph on FWD/REV. i don't see a cable from the VFC to Smarti and i tried about 20 different variations of password and can't access config menu. looking for help..willing to trade.

regards
jay