Skip to main content ↑ ↓
Topic: What tool to diagnose CEL on a 400 Cummins (Read 337 times) previous topic - next topic

What tool to diagnose CEL on a 400 Cummins

On the most recent journey I noticed a CEL and the associated annoying buzzer for most of an 800 mile trip.

Started after about 50 miles, so I pulled over checked all vitals (all good) shut down, and resumed....shortly after (25 miles )the same?

This continued on and off (mostly on) for the rest of the trip, as luck would have it I stopped in to fill up my propane about 30 miles before our destination, and the CEL was off the last leg.

Q. Is there a tool that I can by to look at codes (assuming they are stored) We're set for the winter at our Escapees lot in AZ.

Thanks, Paul

Re: What tool to diagnose CEL on a 400 Cummins

Reply #1 –
Expensive to buy the software, adapters and laptop.. I have one with about 1k invested in Cummins, Detroit, and Cat software.. Typical truck shop charges $100.00 to plug in and read codes.

Re: What tool to diagnose CEL on a 400 Cummins

Reply #2 –
VMSpc will record, save and display any engine or transmission code in real time or in some versions when you click on the diagnostics menu.  And you get all of the other benefits as well.

Re: What tool to diagnose CEL on a 400 Cummins

Reply #3 –
The local Cummins dealer will read and clear codes at no charge.  Not a good option since you are settled in if the objective is to read them without leaving the lot.
 

Re: What tool to diagnose CEL on a 400 Cummins

Reply #4 –
I have a 96 Cummins that is not electronic controlled. If I had newer I would have the VMS.  Like Roger says it does what a portable scanner like we use in our shop does plus more.