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16 August, 2025

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Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 483 PID: PID 129 SPN: 1349 FMI: 3 Injector Metering rail 2 Pressure Sensor Circuit- Voltage Above Normal, or Shorted to High Source

Circuit DescriptionThe engine control module (ECM) provides a 5 volt supply to the fuel rail pressure sensor using a dedicated...

16 August, 2025

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Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 4839 PID: SPN: 3667 FMI: 31 Engine Air Shutoff- Condition Exists

Circuit DescriptionThe engine control module (ECM) controls the engine intake air throttle actuator. The ECM can open and close the...

16 August, 2025

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Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 484 PID: PID 129 SPN: 1349 FMI: 4 Injector Metering Rail 2 Pressure Sensor Circuit- Voltage Below Normal, or Shorted to Low Source

Circuit DescriptionThe engine control module (ECM) provides a 5 volt supply to the fuel rail pressure sensor using a dedicated...

16 August, 2025

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Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 4842 PID: SPN: 3364 FMI: 15 Aftertreatment Diesel Exhaust Fluid Quality- Data Valid But Above Normal Operating Range- Least Severe Level

Circuit DescriptionThe aftertreatment diesel exhaust fluid quality sensor is a smart device that communicates to the ECM via the J1939...

16 August, 2025

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Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 488 PID: PID 105 SPN: 105 FMI: 16 Intake Manifold 1 Temperature- Data Valid But Above Normal Operating Range- Moderately Severe Level

Circuit DescriptionThe intake manifold air temperature sensor monitors intake manifold air temperature and passes information to the electronic control. The...

16 August, 2025

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Cummins X15 CM2350 X116B Performance Series (2018 & Newer) Fault Code: 4951 PID: SPN: 6655 FMI: 3 Maintain ECU Power Lamp Circuit- Voltage Above Normal or Shorted to High Source

Circuit DescriptionThe Engine Control Module (ECM) requires battery power when the keyswitch is ON and for a period of time...

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