Trying to disable a DTC on 2016 F350 6.7L Powerstroke. When I try to write to the ECM, the software says vehicle power not detected. Cycled key, unplugged the MPVI and connected to the truck and still no vehicle power detected. We have green power light on the device when hooked to the truck and NOT the laptop.
I do not have a log file, just trying to disable DTC.