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27 augustus, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4612 PID: SPN: 520701 FMI: 31 Air Handling Feedback Control- Condition Exists

Circuit DescriptionThe variable geometry turbocharger (VGT) is electronically activated by the VGT actuator. The VGT actuator is a smart device...

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27 augustus, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4616 PID: SPN: 102 FMI: 17 Intake Manifold 1 Pressure- Data Valid But Below Normal Operating Range- Least Severe Level

Circuit DescriptionThe engine control module (ECM) provides a 5 volt supply to the intake manifold pressure sensor on the sensor...

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27 augustus, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4658 PID: SPN: 4331 FMI: 18 Aftertreatment SCR Actual Dosing Reagent Quantity- Data Valid But Below Normal Operating Range- Moderately Severe

Circuit DescriptionThe aftertreatment diesel exhaust fluid dosing unit precisely measures the amount of aftertreatment diesel exhaust fluid to be injected...

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27 augustus, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4677 PID: SPN: 1761 FMI: 9 Aftertreatment 1 Diesel Exhaust Fluid Tank Level- Abnormal Update Rate

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

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27 augustus, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4691 PID: SPN: 5585 FMI: 18 Engine Injector Metering Rail 1 Cranking Pressure- Data Valid But Below Normal Operating Range- Moderately Severe Level

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

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27 augustus, 2025

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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 4726 PID: SPN: 1239 FMI: 16 Engine Fuel Leakage- Data Valid But Above Normal Operating Range- Moderately Severe Level

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

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