Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3480
FMI: 0
Description: Fuel Compensation Pressure High
Troubleshooting:
DESCRIPTION:
This fault will become active once the fuel compensation pressure reaches and stays above
799 kPa (116 psi), for longer than 600 seconds during a driving regen or 60 seconds during a
parked regeneration with all conditions met.
MONITORED PARAMETER:
Doser fuel line pressure.
TYPICAL ENABLING CONDITIONS:
Dosing enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
One minute
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 10%, DPF inhibit regeneration.
VERIFICATION:
Parked regeneration
POSSIBLE CAUSES:
Faulty hydrocarbon doser block.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3480
FMI: 1
Description: Dozer Fuel Supply Pressure Abnormal
Troubleshooting:
DESCRIPTION:
This code sets when the motor control module (MCM) detects that the fuel compensation
pressure is lower than 358 kPa (52 psi) for 10 minutes when dosing is enabled.
MONITORED PARAMETER:
Doser fuel line pressure sensor.
TYPICAL ENABLING CONDITIONS:
Dosing enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
10 minutes for parked regeneration, one minute during driving regeneration.
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 10%
VERIFICATION:
Parked regeneration
POSSIBLE CAUSES:
1. Fuel leaks in the HC doser block.
2. Faulty pressure relief valve.
3. Faulty high pressure fuel flange.
4. Faulty hydrocarbon doser block.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3480
FMI: 2
Description: Hydrocarbon Dozer Fuel Line Pressure Low
Troubleshooting:
DESCRIPTION:
Hydrocarbon (HC) dozer fuel line pressure low.
MONITORED PARAMETER:
HC doser fuel line pressure.
TYPICAL ENABLING CONDITIONS:
Dosing enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
One minute
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 10%
VERIFICATION:
Parked regeneration
POSSIBLE CAUSES:
1. MCM needs software update.
2. Faulty HC doser injector valve fuel supply line.
3. Faulty HC fuel doser injector valve.
4. Faulty doser block.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3480
FMI: 3
Description: Fuel Compensation Pressure Sensor Circuit Failed High
Troubleshooting:
DESCRIPTION:
Fuel compensation pressure (FCP) sensor circuit failed high.
MONITORED PARAMETER:
Fuel compensation pressure sensor.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERIFICATION:
Engine idle: one minute.
POSSIBLE CAUSES:
1. Faulty wiring.
2. Bent pins.
3. Spread pins.
4. Corroded pins.
5. Faulty Hydrocarbon fuel doser block.