Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3187
FMI: 4

Description: LIN1 Short to Ground
Troubleshooting:
POSSIBLE CAUSES:
1. Bent pins.
2. Spread pins.
3. Corroded pins.
4. Faulty wiring.
5. Faulty shift stalk lever.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3216
FMI: 10

Description: Selective Catalyst Reduction Inlet NOx sensor – Signal Erratic
Troubleshooting:
DESCRIPTION:
High NOx at idle.
MONITORED PARAMETER:
NOx
TYPICAL ENABLING CONDITIONS:
1. Zero vehicle speed.
2. Rpm less than 900.
3. EGR closed.
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Parked regeneration
POSSIBLE CAUSES:
1. Damaged or leaking air inlet, Charge Air Cooler (CAC), and EGR piping and hose.
2. Faulty fuel injector.
3. Damaged or leaking Aftertreatment System (ATS).
4. Bent pins.
5. Spread pins.
6. Corroded pins.
7. Faulty inlet NOx sensor.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3216
FMI: 13

Description: Selective Catalyst Reduction Inlet NOx Sensor Signal Not Available
Troubleshooting:
DESCRIPTION:
Selective catalyst reduction (SCR) inlet NOX sensor signal not available.
MONITORED PARAMETER:
SCR Inlet NOx sensor signal.
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
2 seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Engine idle: 1 minute.
NOTE: If fault occurred during high idle regeneration, clear fault and release vehicle.
POSSIBLE CAUSES:
1. Bent pins.
2. Spread pins.
3. Corroded pins.
4. Faulty wiring.
5. Faulty SCR inlet NOx sensor.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3216
FMI: 14

Description: NOx Raw Sensor Does Not Support Self Diagnosis.
Troubleshooting:
DESCRIPTION:
This fault code sets when the Aftertreatment Control Module (ACM) determines that the NOx
sensor cannot perform the self-diagnosis test.
MONITORED PARAMETER:
NOx sensor
TYPICAL ENABLING CONDITIONS:
Always enabled
MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Always enabled
TYPCIAL DURATION:
Two seconds
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Turn the ignition on, clear the fault code, let the engine idle for 10 minutes, cycle the ignition off
for 10 minutes. Turn the ignition back on and recheck for the fault code.
POSSIBLE CAUSES:
Faulty NOx sensor.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer)
PID: N/A
SPN: 3216
FMI: 16

Description: Selective Catalyst Reduction Inlet NOx Sensor – Drift High
Troubleshooting:
DESCRIPTION:
NOX sensor plausibility check.
MONITORED PARAMETER:
Aftertreatment Inlet NOx sensor.
TYPICAL ENABLING CONDITIONS:
General Enabling Condition: Engine is not in regeneration and operating at high speed and
loads.
Specific Enabling Conditions:
1. Engine Speed (rpm):
Min: 1100
Max: 1400
2. Torque (Nm)9/30/2019
Min: 800
Max: 1400
3. Battery voltage:
Min 11.08
4. Engine Coolant Outlet Temperature:
70°C (158°F)
5. Ambient Temperature:
Min: -8°C (17.6°F)
6. Barometric Pressure (mbar):
Min: 755 mbar (11 psi)
7. Time since DPF regen (min.):
Min: 15
8. Beginning of injection (BOI) – Degrees of Crankshaft rotation:
Min: 10
9. EGR Mass (Kg/Min):
Min: 5

MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
150 seconds (two-cycle).
DASH LAMPS:
MIL
ENGINE REACTION:
None
VERIFICATION:
Parked SCR efficiency test.
POSSIBLE CAUSES:
1. Faulty Selective Catalyst Reduction Inlet NOx sensor.
2. Damaged pins.
3. Bent pins.
4. Spread pins.
5. Corroded pins.
6. Unseated pins.
7. Damaged connector.
8. Damaged wire.

Make: Detroit
Engine: DD15 GHG17 (2017 & Newer) MCM
SPN: 3216
FMI: 16

Description: Selective Catalyst Reduction Inlet NOx Sensor – Drift High
Troubleshooting: DESCRIPTION:
NOX sensor plausibility check.

MONITORED PARAMETER:
Aftertreatment Inlet NOx sensor.
TYPICAL ENABLING CONDITIONS:
General Enabling Condition: Engine is not in regeneration and operating at high speed and loads.
Specific Enabling Conditions:
1. Engine Speed (rpm): Min: 1100
Max: 1400
2. Torque (Nm): Min: 800
Max: 1400

3. Battery voltage: Min 11.08
4. Engine Coolant Outlet Temperature: 70°C (158°F)
5. Ambient Temperature: Min: -8°C (17.6°F)
6. Barometric Pressure (mbar): Min: 755 mbar (11 psi)

7. Time since DPF regen (min.): Min: 15
8. Beginning of injection (BOI) – Degrees of Crankshaft rotation: Min: 10
9. EGR Mass (Kg/Min): Min: 5

MONITOR SEQUENCE:
None
EXECUTION FREQUENCEY:
Continuous when enabling conditions met.
TYPCIAL DURATION:
150 seconds (two-cycle).
DASH LAMPS: MIL
ENGINE REACTION:
25% engine derate.
VERIFICATION:
Parked SCR efficiency test.
POSSIBLE CAUSES:
1. Faulty Selective Catalyst Reduction Inlet NOx sensor.
2. Leaking external Exhaust Gas Recirculation (EGR) and exhaust system (turbine housing, exhaust
manifold, etc.).
3. Clogged or blocked delta P venturi ports.
4. Faulty delta P sensor.
5. Bent pins.
6. Spread pins.
7. Corroded pins.
8. Unseated pins.
9. Damaged connector.
10. Damaged wire.
11. Faulty intake pressure/temperature sensor.
12. Build up or blocked EGR cooler hot pipe, EGR crossover pipe and delivery pipe.
13. Faulty EGR cooler.
14. Damaged EGR valve.
15. Faulty exhaust manifold (center section).
16. Faulty SCR inlet NOx sensor.