Detroit DD15 GHG14 (2014-16) Fault Code: SPN 704 FMI 4 (CPC) High Exhaust System Temperature Lamp

NOTE: Indicates a short to ground on the pin 7 circuit of the CPC #4 connector.

NOTE: The common powertrain controller (CPC) digital outputs have the same SPN as some motor control module (MCM) faults. The diagnostic service tool standard makes the distinction between the MCM and CPC when diagnosing a fault.

PROBABLE CAUSES:
Wiring problem between pin 1 and/or 3 of the turbocharger actuator connector and pin 35 and/or 93 of the 120-pin ECM connection.