i have this c2 6.7 cummins allison 1000/2000 trans when u go to put in drive the range inhibit light and check trans light come on and it wont go in gear i got a 880 code which is tcm power input i did the diagnostic checks i had all my powers and grounds at tcm i put it back together and everything works now no lights goes in gear could it be a bad tcm it says in the diagnostic tree its most likely not the tcm i wiggled the wires seeing if it would come back but good as of now
sry been busy to get back to this but i looked at the wires under three fuse blocks they look ok and the harness isnt rubbing on anything with opening up all the loom they look ok
the power wires are spliced about 1 or 2 feet from the tcm look there also the power for tcm,ecm,abs all come from one power then splits just before the pdm(that houses all the relays for these devices check under the heat shrink also
OEM trained in wiring and all engine platforms for over 20 years
FH9359 2014 the dignostic tree says its not usually the tcm but all my powers and grounds are good i pulled apart just about the hole harness looking for chaffs but found nothing
on a 2010 c2 the splice is on the tcm side (not sure if it would be the same for a 2013) one wire from 10amp fuse (232d) splits into 232c and 232d to pins 10 and 70 of tcm plug- battery power one wire from 10amp fuse (232e) straight to pin 63 of tcm plug- ignition power
OEM trained in wiring and all engine platforms for over 20 years
the ignition splice is about a foot off the fuse block close to where the harness y's off that was fine i saw no splice fore the battery voltage like i said i opened up the harness about 90 % of it and found nothing bad i just put it back together and started it up and no lights now i no its not fixed but i ohms all the power wires and everything was perfect
just in case when I worked at Freightshaker stealership we had numerous bad fuses from oem they look good test good but they weren't good lol I would swap out any oem fuse in a c2 from 2010 and up wasted alot of time due to this issue and i think freightliner had put out a notice about their cheap fuses
OEM trained in wiring and all engine platforms for over 20 years
all the lights camwe back on the next day so i ended up taking a tcm out of a sister bus and the bus been on road for days with no problems so i oredered a new tcm put it in and everything seems to be fine its been on road few weeks with no problems it was wierd thst the diagnostic tree said to not replace the tcm and it ended up being the tcm
2013 c2 trans code
Posted - 07/24/2019 : 12:01:34 PM
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