Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3361
FMI: 3
Description: Diesel Exhaust Fluid System Circuit Failed High
Troubleshooting:
DESCRIPTION:
Diesel exhaust fluid (DEF) system circuit voltage above normal, or shorted to high source.
MONITORED PARAMETER:
DEF dosing unit voltage.
TYPICAL ENABLING CONDITIONS:
DEF dosing unit voltage.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
None
ENGINE REACTION:
Derate 25%
VERIFICATION:
Key off five minutes after repair.
POSSIBLE CAUSES:
1. Damaged pins.
2. Bent pins.
3. Spread pins.
4. Broken pins.
5. Pushed out pins.
6. Corroded pins.
7. Damaged wire.
8. Faulty DEF dosing unit.
9. Faulty ACM.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3361
FMI: 4
Description: Diesel Exhaust Fluid System Circuit Failed Low
Troubleshooting:
DESCRIPTION:
Diesel exhaust fluid (DEF) system circuit low voltage signal or short to ground.
MONITORED PARAMETER:
DEF dosing unit voltage.
TYPICAL ENABLING CONDITIONS:
DEF dosing enabled them disabled.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
50 seconds (max).
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Key cycle off five minutes after repair.
POSSIBLE CAUSES:
1. Damaged pins.
2. Bent pins.
3. Spread pins.
4. Broken pins.
5. Pushed out pins.
6. Corroded pins.
7. Damaged wire.
8. Faulty DEF dosing unit.
9. Faulty ACM.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3361
FMI: 5
Description: Diesel Exhaust Fluid System Circuit Failed Open
Troubleshooting:
DESCRIPTION:
This fault code sets when the aftertreatment control module (ACM) detects an open in the
diesel exhaust fluid DEF dozer valve electrical circuit.
MONITORED PARAMETER:
DEF dosing unit voltage.
TYPICAL ENABLING CONDITIONS:
DEF dosing enabled then disabled.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
50 seconds (max).
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Key off for five minutes after repair.
POSSIBLE CAUSES:
1. Damaged pins.
2. Bent pins.
3. Spread pins.
4. Broken pins.
5. Pushed out pins.
6. Corroded pins.
7. Damaged wire.
8. Faulty DEF dosing unit.
9. Faulty ACM.
Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3361
FMI: 31
Description: Diesel Exhaust Fluid Dosing Unit Error
Troubleshooting:
DESCRIPTION:
The fault indicates that the Diesel Exhaust Fluid (DEF) Dosing Unit was switched off before
completing a cycle.
MONITORED PARAMETER:
DEF pressure
TYPICAL ENABLING CONDITIONS:
When service routine is enabled and during infrequent in-use checks under non DEF dosing
conditions.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Service tool and infrequent in-use checks during DEF dosing conditions.
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
VERIFICATION:
Selective Catalyst Reduction (SCR) Airless Dosing System (ADS) Self-Check Routine.
POSSIBLE CAUSES:
1. Faulty DEF Dosing Unit.
2. Damaged pins.
3. Wire chafing.
4. Bent pins.
5. Spread pins.
6. Corroded pins.
7. Faulty DEF Dosing Unit.
8. Faulty ACM.