freightliner cascadia dd15 no start

if your dd13 or 15 won't start, and you've already spent thousands on bullshit, you need to check MCM to starter signal wire. the ignition switch does not directly connect to the starter or a traditional relay. the Motor Control module sends a 12 volt analog signal to the start relay.

[noneofyourbiz]

That’s that awesome useful tech shit we need more of !

[alexjimenez]

Hey sir my truck say not neutral and won’t turn on the mechanic say that the transmission dt12 is not receiving enough power to get on neutral

[donttruckhere]

Hey Matt my cascadia is stuck in nuetral and wont turn on found no power in the 21 pin connector at 1, 2, 3, 4, and 6

[robertbaumann]

Is that the mcm code 677-4 electrical problem detected pointing to?