Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521020
FMI: 0
Description: Group 3 Sensors Not Plausible
Troubleshooting:
DESCRIPTION:
This fault code sets when 2 or more sensors from group 3 are not within an expected range
after an 8 hour cold soak.
MONITORED PARAMETER:
1. Fuel temp.
2. Compressor inlet.
3. Charge air cooler outlet.
4. Ambient air temp.
TYPICAL ENABLING CONDITIONS:
Key ON, engine OFF, battery voltage greater than 11 volts, engine rpm at zero, ambient
temperature less than 40°C (104°F), ignition off for no less than 8 hours.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Once per cold cycle.
TYPCIAL DURATION:
5 seconds
DASH LAMPS:
MIL
ENGINE REACTION:
25% derate, regen disabled, EGR valve shut and SCR dosing is disabled.
VERFICATION:
Road test the vehicle for 30 minutes until the coolant reaches operating temperature. Then
verify that the engine oil temperature is within 20°C (36°F) of the engine coolant outlet
temperature.
POSSIBLE CAUSES:
1. Reprogramming or time change to the CPC.
2. Usage of an external or aftermarket heating unit.
3. Damaged or corroded sensor connectors.
4. Failed sensor.
5. Common Powertrain Controller (CPC) need an update.
6. Damaged/Faulty sensor electrical connector.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521027
FMI: 9
Description: EGR Valve Actuator No Longer Communicating On MCM CAN3
Troubleshooting:
DESCRIPTION:
Lost communication with Exhaust Gas Recirculation control module, CAN Bus is ok.
MONITORED PARAMETER:
EGR valve actuator.
TYPICAL ENABLING CONDITIONS:
Ignition on
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERFICATION:
Turn the ignition OFF, wait five minutes, turn the Ignition ON and recheck for the fault.
POSSIBLE CAUSES:
1. Faulty EGR valve actuator.
2. Damaged pins.
3. Corroded pins.
4. Spread pins.
5. Faulty wiring.
6. Faulty MCM.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521030
FMI: 9
Description: Smart Remote Actuator 3 (EGR), No Communication
Troubleshooting:
DESCRIPTION:
The fault code sets when the Motor Control Module (MCM) does not receive a message from
the Exhaust Gas Recirculation (EGR) valve actuator.
MONITORED PARAMETER:
MCM communication from the EGR valve actuator.
TYPICAL ENABLING CONDITIONS:
Ignition on
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERFICATION:
Ignition ON
POSSIBLE CAUSES:
1. Faulty EGR valve actuator.
2. Damaged pins.
3. Corroded pins.
4. Spread pins.
5. Faulty wiring.
6. Faulty EGR valve actuator.
7. Faulty MCM.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521039
FMI: 16
Description: EGR Controller Effort Exceeds Limits Low – High EGR flow
Troubleshooting:
DESCRIPTION:
This fault code sets when the difference between the actual Exhaust Gas Recirculation (EGR)
flow and the commanded EGR flow is higher than a calibrated threshold.
MONITORED PARAMETER:
EGR mass flow.
TYPICAL ENABLING CONDITIONS:
Desired EGR mass flow greater than .08, EGR in closed-loop control, CAC Outlet temperature
greater than 0°C (32°F), engine speed 1080 to 2500 rpm, engine torque 200 to 2500 N·M (148
to 1894 lb·ft), coolant temperature greater than 65°C (149°F), ambient temperature greater
than -8°C (17.6°F) ambient, barometric pressure greater than 755 mbar (11 psi).
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
20
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERFICATION:
Start engine, warm up such that coolant temperature greater than 65°C (149°F) ensure
ambient temperature greater than -8°C (17.6°F) ambient and ambient
barometric pressure greater than 755 mbar (11 psi). Desired EGR mass flow greater than .08,
EGR in closed-loop control, CAC outlet temperature greater than 0°C (32°F), engine speed
1080 to 2500 rpm, engine torque 200 to 2500 N·m (148 to 1894 lb·ft).
POSSIBLE CAUSES:
1. Parked regeneration needed.
2. Faulty delta pressure sensor and pigtail.
3. Faulty MCM.
4. Faulty intake manifold pressure sensor.
5. Faulty intake manifold temperature sensor.
6. Faulty delta P sensor.
7. Faulty EGR valve.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 521039
FMI: 18
Description: EGR Controller Effort Exceeds Limits High – Low EGR flow
Troubleshooting:
DESCRIPTION:
This fault code sets when the difference between the actual Exhaust Gas Recirculation (EGR)
flow and the commanded EGR flow is lower than a calibrated threshold.
MONITORED PARAMETER:
EGR mass flow.
TYPICAL ENABLING CONDITIONS:
Desired EGR mass flow greater than .08, EGR in closed-loop control, CAC Outlet temperature
greater than 0°C (32°F), engine speed 1080 to 2500 rpm, engine torque 200 to 2500 N·M (148
to 1894 lb·ft), coolant temperature greater than 65°C (149°F), ambient temperature greater
than -8°C (17.6°F) ambient, barometric pressure greater than 755 mbar (11 psi).
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
20
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERFICATION:
Start engine, warm up such that coolant temperature greater than 65°C (149°F) ensure
ambient temperature greater than -8°C (17.6°F) ambient and ambient
barometric pressure greater than 755 mbar (11 psi). Desired EGR mass flow greater than .08,
EGR in closed-loop control, CAC outlet temperature greater than 0°C (32°F), engine speed
1080 to 2500 rpm, engine torque 200 to 2500 N·m (148 to 1894 lb·ft).
POSSIBLE CAUSES:
1. Parked regeneration needed.
2. Faulty delta pressure sensor and pigtail.
3. Faulty MCM.
4. Faulty intake manifold pressure sensor.
5. Faulty intake manifold temperature sensor.
6. Faulty delta P sensor.
7. Faulty EGR valve.