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26 August, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 6927 PID: SPN: 3217 FMI: 14/14 Aftertreatment Intake Oxygen Sensor – Special Instructions

Lamp:Amber Reason:An incorrect oxygen sensor reading has been detected by the aftertreatment intake NOx sensor. Effect:None on performance. Circuit Description:The...

26 August, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 693 PID: PID 351 SPN: 1172 FMI: 2 Turbocharger 1 Compressor Intake Temperature- Data Erratic, Intermittent, or Incorrect

Circuit DescriptionThe turbocharger compressor intake temperature sensor is a variable resistor sensor and is used to measure the temperature of...

26 August, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 7222 PID: SPN: 1112 FMI: 3/3 Engine Brake Actuator Driver 3 Circuit – Voltage Above Normal or Shorted to High Source

Lamp:None Reason:Open circuit or high voltage detected at the engine brake solenoid number 3 signal circuit. Effect:Possible reduce engine braking...

26 August, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 731 PID: SID 64 SPN: 723 FMI: 7 Engine Speed/Position Camshaft And Crankshaft Misalignment- Mechanical System not Responding or Out of Adjustment

Circuit DescriptionThe crankshaft position and camshaft position sensors are Hall effect type sensors. The engine control module (ECM) provides a...

26 August, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 7319 PID: SPN: 3226 FMI: 11/31 Aftertreatment 1 Outlet NOx Sensor – Condition Exists

Lamp:None Reason:Signal indicates wrong reading or sensor tampering. Effect:None on performance. Circuit Description:The aftertreatment outlet NOx (Nitrogen Oxides) sensor is...

26 August, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 755 PID: PID 157 SPN: 157 FMI: 7 Injector Metering Rail 1 Pressure- Mechanical System Not Responding or Out of Adjustment

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

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