Cummins isb engine code

[Cummins isb engine code]

Thanks for the replies. I will check these and reply back. 

[Cummins isb engine code]

I recently purchased a 1998 holiday Rambler endeavor with the cummins 5.9 isb and  6 speed allison  trans. The motorhome runs great but for one problem. I went to start it this morning and the check engine light came on. Following the instructions to extract codes it read as 0372. After a google search this is “idle select high/low”. Does anyone know what this means and how to remedy it?