Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 2791
FMI: 16

Description: EGR Valve Actuator Learn Cycle Too Large
Troubleshooting:
DESCRIPTION:
The fault code sets when the Motor Control module (MCM) detects that the Exhaust Gas
Recirculation (EGR) valve position is incorrect.
MONITORED PARAMETER:
EGR position error.
TYPICAL ENABLING CONDITIONS:
Engine running
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERIFICATION:
Engine idle
POSSIBLE CAUSES:
1. EGR components need correct installation.
2. Faulty EGR actuator.
3. Faulty pull rod.
4. Faulty EGR valve.
5. Faulty EGR valve actuator.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 2791
FMI: 18

Description: EGR Valve Actuator Learn Cycle Too Small
Troubleshooting:
DESCRIPTION:
The fault code sets when the Motor Control module (MCM) detects that the Exhaust Gas
Recirculation (EGR) valve position is incorrect.
MONITORED PARAMETER:
EGR position error.
TYPICAL ENABLING CONDITIONS:
Engine running
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERIFICATION:
Engine idle
POSSIBLE CAUSES:
1. EGR components need correct installation.
2. Faulty EGR actuator.
3. Faulty pull rod.
4. Faulty EGR valve.
5. Faulty EGR valve actuator.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 2791
FMI: 31

Description: EGR Valve Actuator Slow Response
Troubleshooting:
DESCRIPTION:
The fault code sets when the Motor Control module (MCM) detects that the Exhaust Gas
Recirculation (EGR) valve position does not reach the commanded position within a calibrated
time.
MONITORED PARAMETER:
EGR position error.
TYPICAL ENABLING CONDITIONS:
Engine running
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
None
VERIFICATION:
Engine idle
POSSIBLE CAUSES:
1. EGR components need correct installation.
2. Faulty EGR actuator.
3. Faulty pull rod.
4. Faulty EGR valve.
5. Faulty EGR valve actuator.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 2797
FMI: 3

Description: Fuel Injector Needle Control Valve for Cylinder 1, 2, 3 Shorted to Battery Power
Troubleshooting:
DESCRIPTION:
Injector needle control valve cylinder 1, 2, 3 shorted to battery.
MONITORED PARAMETER:
Injector needle control valve cylinder 1, 2, 3.
TYPICAL ENABLING CONDITIONS:
Engine RPM = idle or higher.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Engine idle (1 minute).
POSSIBLE CAUSES:
Faulty wiring.