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21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1515 PID: PID 91 SPN: 91 FMI: 19 SAE J1939 Multiplexed Accelerator Pedal or Lever Sensor System- Received Network Data in Error

Circuit DescriptionNormally, switches, accelerators, and other components are connected to the engine control module (ECM) directly through individual wires. Multiplexing...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 153 PID: PID 105 SPN: 105 FMI: 3 Intake Manifold 1 Temperature Sensor Circuit- Voltage Above Normal or Shorted to High Source

Circuit DescriptionThe ECM supplies 5 volts to the intake manifold temperature signal circuit, and monitors the change in voltage caused...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 154 PID: PID 105 SPN: 105 FMI: 4 Intake Manifold 1 Temperature Sensor Circuit- Voltage Below Normal or Shorted to Low Source

Circuit DescriptionThe ECM supplies 5 volts to the intake manifold temperature signal circuit, and monitors the change in voltage caused...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 155 PID: PID 105 SPN: 105 FMI: 0 Intake Manifold 1 Temperature- Data Valid But Above Normal Operating Range- Most Severe Level

Circuit DescriptionThe Engine Control Module (ECM) provides 5 volts to the intake manifold temperature signal circuit, and monitors the change...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1595 PID: PID 372 SPN: 974 FMI: 3 Remote Accelerator Pedal or Lever Position Sensor 1 Circuit- Voltage Above Normal or Shorted to High Source

Circuit DescriptionThe remote accelerator position sensor is a potentiometer attached to the remote accelerator lever. The remote accelerator position sensor...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1654 PID: SPN: 1323 FMI: 31 Engine Misfire Cylinder 1- Condition Exists

Circuit DescriptionAn algorithm in the ECM calibration monitors engine speed as each injector fires. If a cylinder(s) has high or...

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