Section 18.2 Engine Manufacturer Diagnostics Parameter Descriptions

Section 18.2
Engine Manufacturer Diagnostics Parameter Descriptions

The following tables contain the Engine Manufacturer Diagnostic (EMD) descriptions as mandated by the U.S. government.‪

SPN 27/FMI 3 "19.1 SPN 27/FMI 3"

Description‪

EGR Valve Position Circuit Failed High, voltage of sensor > 4.7 V‪

Monitored Parameter‪

EGR Valve Position Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 27/FMI 4 "19.2 SPN 27/FMI 4"

Description‪

EGR Valve Position Circuit Failed Low, voltage of sensor < 0.25 V‪

Monitored Parameter‪

EGR Valve Position Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 27/FMI 7 "19.3 SPN 27/FMI 7"

Description‪

EGR Valve Stuck Open, EGR Valve Position 10%‪

Monitored Parameter‪

EGR Valve‪

Typical Enabling Conditions‪

SPN 2791/FMI 7 Active‪

Monitor Sequence‪

SPN 2791/FMI 7 Active‪

Execution Frequency‪

Set‪

Typical Duration‪

2 seconds‪

SPN 51/FMI 2 "7.1 SPN 51/FMI 2"

Description‪

Intake Throttle Position Feedback Rationality, difference between commanded and actual > 15%‪

Monitored Parameter‪

Intake Air Throttle (Position Sensor)‪

Typical Enabling Conditions‪

Engine coolant temperature > 60°C‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

5 seconds‪

SPN 51/FMI 3 "7.2 SPN 51/FMI 3"

Description‪

Intake Air Throttle Circuit Failed High, voltage of sensor > 4.9 V‪

Monitored Parameter‪

Intake Air Throttle Position Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 51/FMI 4 "7.3 SPN 51/FMI 4"

Description‪

Intake Air Throttle Circuit Failed Low, voltage of sensor < 0.4 V‪

Monitored Parameter‪

Intake Air Throttle Position Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 103/FMI 0 "27.1 SPN 103/FMI 0"

Description‪

Turbo Charger Speed Above Threshold (Low Box),‪

turbocharger speed >50000 RPM‪

Monitored Parameter‪

Turbocharger Speed‪

Typical Enabling Conditions‪

RPM: 575–650, Torque: –100–150 N·m‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

10 seconds every second drive cycle‪

SPN 103/FMI 1 "27.2 SPN 103/FMI 1"

Description‪

Turbo Charger Speed Below Threshold (High Box),‪

turbocharger speed < 35000 RPM‪

Monitored Parameter‪

Turbocharger Speed‪

Typical Enabling Conditions‪

RPM: 1400–1700,Torque: 1400–2300 N·m‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

10 seconds every second drive cycle‪

SPN 108/FMI 3 "28.1 SPN 108/FMI 3"

Description‪

Barometric Pressure Circuit Failed High, voltage of sensor > 4.5 V‪

Monitored Parameter‪

Barometric Pressure Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 108/FMI 4 "28.2 SPN 108/FMI 4"

Description‪

Barometric Pressure Circuit Failed Low, voltage of sensor < 1.8 V‪

Monitored Parameter‪

Barometric Pressure Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 110/FMI 3 "29.2 SPN 110/FMI 3"

Description‪

Engine Coolant Outlet Temperature Circuit Failed High,‪

voltage of sensor > 2.9 V‪

Monitored Parameter‪

Engine Coolant Outlet Temperature Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 110/FMI 4 "29.3 SPN 110/FMI 4"

Description‪

Engine Coolant Outlet Temperature Circuit Failed Low,‪

voltage of sensor < 0.10 V‪

Monitored Parameter‪

Engine Coolant Outlet Temperature Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 110/FMI 14 "29.4 SPN 110/FMI 14"

Description‪

Engine Coolant Temperature / Engine Oil Temperature Rationality Fault, Oil temp - Coolant temp 40°C‪

Monitored Parameter‪

Engine Coolant Temperature Sensor‪

Typical Enabling Conditions‪

Engine Oil Temperature > 75°C, engine on time > 1200 seconds‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

30 seconds every second drive cycle‪

SPN 132/FMI 1 "31.1 SPN 132/Fmi1"

Description‪

Desired air mass flow is less than actual‪

Monitored Parameter‪

Air Mass Flow‪

Typical Enabling Conditions‪

Air Mass Flow > 0.167 kg/s‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

45 seconds‪

SPN 175/FMI 3 "35.1 SPN 175/FMI 3"

Description‪

Engine Oil Temperature Circuit Failed High,‪

voltage of sensor > 2.9677 V‪

Monitored Parameter‪

Engine Oil Temperature Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 175/FMI 4 "35.2 SPN 175/FMI 4"

Description‪

Engine Oil Temperature Circuit Failed Low, voltage of sensor < 0.1026 V‪

Monitored Parameter‪

Engine Oil Temperature Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 175/FMI 14 "35.3 SPN 175/FMI 14"

Description‪

Engine Oil Temperature Sensor Rationality Fault,‪

voltage of sensor < 0.1026 V‪

Monitored Parameter‪

Engine Oil Temperature Sensor‪

Typical Enabling Conditions‪

Engine coolant temperature out > 71°C, engine on time > 1200 seconds‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

30 seconds every second drive cycle‪

SPN 411/FMI 0 "39.1 SPN 411/FMI 0"

Description‪

EGR Differential Pressure Failed (Low Box),‪

voltage of sensor < 0.15 mbar‪

Monitored Parameter‪

EGR Delta Pressure Sensor‪

Typical Enabling Conditions‪

Time at conditions > 120 seconds‪

EGR position demand < 5%‪

RPM: 575–650, Torque: –100–150 N·m‪

Engine run time > 10 seconds‪

Time above Engine Coolant Temperature threshold > 60 seconds‪

Engine Coolant Temperature > 80°C‪

Engine Oil Temperature > 80°C‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

30 seconds‪

SPN 411/FMI 3 "39.2 SPN 411/FMI 3"

Description‪

EGR Delta Pressure Sensor Circuit High, EGR Delta P > 12 mbar‪

Monitored Parameter‪

EGR Delta Pressure Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 411/FMI 4 "39.3 SPN 411/FMI 4"

Description‪

EGR Delta Pressure Sensor Circuit Low, voltage of sensor < 0.15 V‪

Monitored Parameter‪

EGR Delta Pressure Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 412/FMI 3 "40.1 SPN 412/FMI 3"

Description‪

EGR Temperature Sensor Circuit Failed High, voltage of sensor >, 2.9 V‪

Monitored Parameter‪

EGR Temperature Sensor‪

Typical Enabling Conditions‪

EGR on time > 120 seconds‪

Intake manifold temperature > 30°C‪

EGR flow demanded‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

2 seconds‪

SPN 412/FMI 4 "40.2 SPN 412/FMI 4"

Description‪

EGR Temperature Sensor Circuit Failed Low, voltage of sensor <, 0.1 V‪

Monitored Parameter‪

EGR Temperature Sensor‪

Typical Enabling Conditions‪

Always Enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 625/FMI 2 "52.1 SPN 625/FMI 2"

Description‪

No Data Received from Engine CAN Link‪

Monitored Parameter‪

CAN Communication between CPC and MCM‪

Typical Enabling Conditions‪

CAN communication status = missing‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

1 second‪

SPN 625/FMI 2 "52.1 SPN 625/FMI 2"

Description‪

Invalid Data on Engine CAN link‪

Monitored Parameter‪

CAN Communication between CPC and MCM‪

Typical Enabling Conditions‪

CAN communication status = error‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

1 second‪

SPN 625/FMI 9 "52.3 SPN 625/FMI 9"

Description‪

MCM Diagnostic Message Missing‪

Monitored Parameter‪

MCM_CPC CAN Bus‪

Typical Enabling Conditions‪

Diagnostic Message From MCM No Longer Being Received by CPC = missing‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

7.5 seconds‪

SPN 625/FMI 9 "52.3 SPN 625/FMI 9"

Description‪

No MCM Connection‪

Monitored Parameter‪

MCM_CPC CAN Bus‪

Typical Enabling Conditions‪

Incorrect MCM System ID Received =missing‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

2 seconds‪

SPN 625/FMI 9 "52.3 SPN 625/FMI 9"

Description‪

No ECAN Data‪

Monitored Parameter‪

MCM_CPC CAN Bus‪

Typical Enabling Conditions‪

MCM system ISD not Received or stopped arriving =missing‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

0‪

SPN 625/FMI 10

Description‪

MCM Diagnostic Message Implausible‪

Monitored Parameter‪

MCM_CPC CAN Bus‪

Typical Enabling Conditions‪

Diagnostic Message Inconsistent Number of Frames Received by CPC From MCM = implausible‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

7.5 seconds‪

SPN 625/FMI 13

Description‪

MCM Diagnostic Message Missing‪

Monitored Parameter‪

MCM_CPC CAN Bus‪

Typical Enabling Conditions‪

Diagnostic Message From MCM Not Received by CPC This Ignition Cycle =missing‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always Enabled‪

Typical Duration‪

7.5 seconds‪

SPN 636/FMI 2

Description‪

Incorrect Match of Camshaft and Crankshaft Signals‪

Monitored Parameter‪

Camshaft and Crankshaft Position Sensor‪

Typical Enabling Conditions‪

Incorrect tooth ratio detected for longer than 3 rotations‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

2 seconds‪

SPN 636/FMI 8 "56.5 SPN 636/FMI 8"

Description‪

Crankshaft Position Sensor Time Out‪

Monitored Parameter‪

Crankshaft Position Sensor‪

Typical Enabling Conditions‪

No CRK-event happened within a defined period, engine speed > 400 RPM, time > 1.2 seconds‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

2 seconds‪

SPN 641/FMI 7 "57.1 SPN 641/FMI 7"

Description‪

Turbo Actuator, Failsafe Mode, Motor On, Command signal from MCM, vane position status = missing, = error‪

Monitored Parameter‪

Turbocharger- VGT Actuator‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

7 seconds‪

SPN 641/FMI 9 "57.3 SPN 641/FMI 9"

Description‪

Turbo Actuator, Failsafe Mode, Motor Off, motor failure or position reference missing = error‪

Monitored Parameter‪

Turbocharger- VGT Actuator‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

1 second‪

SPN 641/FMI 11 "57.4 SPN 641/FMI 11"

Description‪

Turbo Actuator, Restricted Operability, slow response, high effort, low voltage or position error > 100%‪

Monitored Parameter‪

Turbocharger- VGT Actuator‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Continuous when enabling conditions are met‪

Typical Duration‪

2 seconds‪

SPN 641/FMI 14 "57.5 SPN 641/FMI 14"

Description‪

Turbo Actuator, No Failsafe Mode, Motor Off, error status = error‪

Monitored Parameter‪

Turbocharger- VGT Actuator‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

7 seconds‪

SPN 651/FMI 6

Description‪

Injector Cylinder #1 Needle Control Valve, Valve Shorted Circuit, driver status = short circuit‪

Monitored Parameter‪

Fuel Injector - Needle Control Cyl 1‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 651/FMI 14 "59.1 SPN 651/FMI 14"

Description‪

Injector Cylinder #1 Needle Control Valve Abnormal Operation‪

Monitored Parameter‪

Injector Needle Solenoid Cyl 1‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 652/FMI 6

Description‪

Injector Cylinder #2 Needle Control Valve, Valve Shorted Circuit, driver status = short circuit‪

Monitored Parameter‪

Fuel Injector - Needle Control Cyl 2‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 652/FMI 14 "60.1 SPN 652/FMI 14"

Description‪

Injector Cylinder #2 Needle Control Valve Abnormal Operation‪

Monitored Parameter‪

Injector Needle Solenoid Cyl 2‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 653/FMI 6

Description‪

Injector Cylinder #3 Needle Control Valve, Valve Shorted Circuit, driver status = short circuit‪

Monitored Parameter‪

Fuel Injector - Needle Control Cyl 3‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 653/FMI 14 "61.1 SPN 653/FMI 14"

Description‪

Injector Cylinder #3 Needle Control Valve Abnormal Operation‪

Monitored Parameter‪

Injector Needle Solenoid Cyl 3‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 654/FMI 6

Description‪

Injector Cylinder #4 Needle Control Valve, Valve Shorted Circuit, driver status = short circuit‪

Monitored Parameter‪

Fuel Injector - Needle Control Cyl 4‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 654/FMI 14 "62.1 SPN 654/FMI 14"

Description‪

Injector Cylinder #4 Needle Control Valve Abnormal Operation‪

Monitored Parameter‪

Injector Needle Solenoid Cyl 4‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 655/FMI 6

Description‪

Injector Cylinder #5 Needle Control Valve, Valve Shorted Circuit, driver status = short circuit‪

Monitored Parameter‪

Fuel Injector - Needle Control Cyl 5‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 655/FMI 14 "63.1 SPN 655/FMI 14"

Description‪

Injector Cylinder #5 Needle Control Valve Abnormal Operation‪

Monitored Parameter‪

Injector Needle Solenoid Cyl 5‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 656/FMI 6

Description‪

Injector Cylinder #6 Needle Control Valve, Valve Shorted Circuit, driver status = short circuit‪

Monitored Parameter‪

Fuel Injector - Needle Control Cyl 6‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution Frequency‪

Always enabled‪

Typical Duration‪

< 5 seconds‪

SPN 656/FMI 14 "64.1 SPN 656/FMI 14"

Description‪

Injector Cylinder #6 Needle Control Valve Abnormal Operation‪

Monitored Parameter‪

Fuel Injector - Needle Control Cyl 6‪

Typical Enabling Conditions‪

Always enabled‪

Monitor Sequence‪

None‪

Execution FrequencyR

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