Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 4360
FMI: 15

Description: Selective Catalyst Reduction Inlet Temperature High
Troubleshooting:
DESCRIPTION:
Selective Catalyst Reduction (SCR) Inlet temperature high.
MONITORED PARAMETER:
Selective inlet temperature.
TYPICAL ENABLING CONDITIONS:
Non-Regen mode
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25%
POSSIBLE CAUSES:
1. Bent pins.
2. Spread pins.
3. Corroded pins.
4. Faulty wiring.
5. Faulty SCR inlet temperature sensor.
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Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 4360
FMI: 20

Description: Selective Catalyst Reduction Inlet Temperature Sensor Drift High in Range
Troubleshooting:
DESCRIPTION:
Selective Catalyst Reduction (SCR) Inlet temperature sensor drift high in range.
MONITORED PARAMETER:
Selective inlet temperature.
TYPICAL ENABLING CONDITIONS:
Coolant is greater than 60°C (140°F), exhaust mass flow greater than 600kg/h.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
60 seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate
VERIFICATION:
Parked regeneration
POSSIBLE CAUSES:
1. Damaged to soot trails indicating a leak to exhaust.
2. Damaged pins.
3. Spread pins.
4. Broken pins.
5. Unseated pins.
6. Corroded pins.
7. Damaged wires.
8. Faulty DPF outlet temperature sensor.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 4360
FMI: 31

Description: Selective Catalyst Reduction Inlet Temperature Not Warming Up
Troubleshooting:
DESCRIPTION:
Selective Catalyst Reduction (SCR) Inlet temperature low.
MONITORED PARAMETER:
DPF outlet and SCR outlet temperature sensors.
TYPICAL ENABLING CONDITIONS:
Non-regen mode
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
SCR efficiency test.
POSSIBLE CAUSES:
1. Damaged or soot trails indicating a leak to exhaust.
2. Bent pins.
3. Spread pins.
4. Corroded pins.
5. Damaged wiring.
6. Temperature sensor(s).

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 4363
FMI: 0

Description: SCR Outlet Temperature High
Troubleshooting:
DESCRIPTION:
Selective Catalyst Reduction (SCR) Outlet temperature high.
MONITORED PARAMETER:
SCR outlet temperature.
TYPICAL ENABLING CONDITIONS:
Non-regen mode
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
1. MIL
2. CEL
ENGINE REACTION:
Derate 25% , 30 seconds shut down.
VERIFICATION:
SCR efficiency test.
POSSIBLE CAUSES:
1. Software update.
2. Bent pins.
3. Spread pins.
4. Corroded pins.
5. Faulty temperature sensor.
6. Extended idle.
7. Hydrocarbon burn.
8. Faulty DOC/SCR module.
9. Drifted SCR temperature sensor.