Detroit Diesel

DESCRIPTION:This fault code sets when the Motor Control Module (MCM) sees that the starter ignition status from the Common Powertrain Controller (CPC) and MCM do not match. MONITORED PARAMETER:Starter Voltage Signal TYPICAL ENABLING CONDITIONS:Engine Start MONITOR SEQUENCE:None EXECUTION FREQUENCY:Always Enabled TYPICAL DURATION:2 Seconds DASH LAMPS:CEL ENGINE REACTION:None VERIFICATION:Engine Start PROBABLE CAUSES:1. If 677-2 inactive, clear the code, start the engine, and if it doesn’t come back release the vehicle.2. Wiring on the MCM 21-pin connector between pin 20 and ground. Should have 11.5 or more volts.3. Wiring on the CPC connector #1 between pin 18 and ground. If less than...

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Starter relay.2. Starter relay wiring. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 2 (MCM) Starter Switch Inconsistent Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 2 (MCM, CPC) Low or No Voltage for the Starter Switch Detroit DD16 GHG14 (2014-16) Fault Code: SPN 667 FMI 3 (CPC) Short to Power on the Pin 18 Circuit of the CPC #1 Connector Detroit DD16 GHG14 (2014-16) Fault Code: SPN 656 FMI 7 (MCM) Injector Cylinder #6 Needle Control Valve Stuck Open Detroit DD16 GHG14...

NOTE: This fault code indicates the starter teeth have not engaged correctly into the flywheel (jammed). NOTE: Attempt to start the engine. If the engine starts correctly, attempt to start the engine three times. If the fault does not re-occur, clear code and release vehicle. The starter may not engage the flywheel. POSSIBLE CAUSES:1. Starter motor alignment.2. Starter drive damage.3. Incorrect starter installed.4. Flywheel damage. PROBABLE CAUSES:1. Starter motor alignment.2. Starter drive damage.3. Incorrect starter installed.4. Flywheel damage. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 18 (MCM, CPC) Starter Relay – Low Resistance Detroit DD16 GHG14 (2014-16) Fault...

NOTE: Please see the step by step troubleshooting procedures for this specific code. PROBABLE CAUSES:1. Starter relay.2. Starter relay wiring. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 3 (MCM, CPC) Engine Starter Relay Shorted to High Source Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 2 (MCM) Starter Switch Inconsistent Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 2 (MCM, CPC) Low or No Voltage for the Starter Switch Detroit DD16 GHG14 (2014-16) Fault Code: SPN 667 FMI 3 (CPC) Short to Power on the Pin 18 Circuit of the CPC #1 Connector Detroit DD16 GHG14...

DESCRIPTION:This fault sets when the MCM detects that there is an open on the engine starter relay circuit. MONITORED PARAMETER:Engine starter relay. TYPICAL ENABLING CONDITIONS:Key on MONITOR SEQUENCE:None EXECUTION FREQUENCY:Continuous when enabling conditions met. TYPICAL DURATION:Two seconds DASH LAMPS:1. MIL2. CEL3. None after MCM update ENGINE REACTION:No start VERIFICATION:Engine cranking PROBABLE CAUSES:1. Starter relay.2. Starter relay wiring. Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 4 (MCM, CPC) Engine Starter Relay Circuit Failed Low Detroit DD16 GHG14 (2014-16) Fault Code: SPN 677 FMI 3 (MCM, CPC) Engine Starter Relay Shorted to High Source Detroit DD16 GHG14 (2014-16) Fault Code:...