Detroit DD15 GHG14 (2014-16) Fault Code: SPN 3851 FMI 4 (CPC) Digital Input 2 09 – Short to Ground on Pin 9 Circuit of the Common Powertrain Controller #2 Connector.

NOTE: The common powertrain controller (CPC) digital outputs have the same SPN as some motor control module (MCM) faults.

NOTE: If ECM has been programmed recentely, check programming to ensure it is correct.

NOTE: Otherwise, fix the open circuit on pin 9 of the CPC4 #2 connector.