cummins isx help

check 20A fuse in battery box. may easily be corroded

 

Do the wiggle test while the engine is running find the harness that runs from the ecm to the battery box and shake it to see if it cuts out also I see a lot of cummins that have problem where the power/ground wires plug into to ecm sometimes the seal gets damaged and won't seal or let the plug lock in and it vibrated loose or gets dirt and water in it I'm pretty sure the code you pulling is ecm was not allowed to power down properly pretty much voltage wad lost while the key switch is on

 

If it's a pete the engine fuses will likely be on the firewall, driver side. I have seen corrosion issues there. hope this helps

 

I have a 2005 Volvo with isx 450 Cummins with the same fault code is it the same problem?

 

This code is for the real-time clock missing. The real time clock is a separate little module that only keeps time for the ECM so it can get a time and date stamp when logging codes and events. Without the real time clock any logged fault codes will not have a time stamp. This has no effect on engine operation. The real time clock is battery powered, and the battery is probably dead. It's not a big deal.

 

Did you find what happen to your truck? I have a 2008 Volvo with 400 Cummins that has same problem. But my if I don't reset the computer it does give me more codes and then kills the engine.

 

Did you get it figured out? What was the problem?