RE:Where to obtain DTC list.
This is most likely the flash code 61 which means injector response time is too long or the circuit is short to the ground. Engine type and model year are important to translating code numbers to descriptions to have a definitive answer. There is a post online for the 2010 VT customers found here: http://www.ddcsn.com/cps/rde/xchg/ddcsn/hs/5444.htmI
Please contact your dealer or email the Detroit Customer Support Center at firstname.lastname@example.org with the error code, engine type, and model year for a definitive answer.