2011-2016 6.7L diesel equipped vehicles may the MIL on with any combination of the DTC’s P20BC, P20C0, P204C, P208A, P208B, P220E and/or P130E.
These DTC’s typically set due to a loose, missing, modified or damaged ground G400.
During vehicle modifications, G400 may be relocated by the body builders/outfitters from it’s original location.
Inspect G400 to ensure it is present, properly secured, clean, and that the bolt head has not broken off prior to performing normal diagnostics.
G400 should be located on a main frame rail and not on a cross-member or welded extension.
Repairs performed due to vehicle modifications are not covered under normal vehicle manufacturers warranty.