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21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1887 PID: PID 2202 SPN: 3226 FMI: 4 Aftertreatment Outlet Nox Sensor Circuit- Voltage Below Normal or Shorted to Low Source

Circuit DescriptionThe aftertreatment outlet NOx (nitrogen oxides) sensor is a smart device and communicates with the engine control module (ECM)...

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1894 PID: SID 27 SPN: 641 FMI: 9 VGT Actuator Driver Circuit- Abnormal Update Rate

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

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1896 PID: SID 146 SPN: 2791 FMI: 13 EGR Valve Controller- Out of Calibration

Circuit DescriptionThe exhaust gas recirculation (EGR) valve is controlled by a brushless motor located on top of the EGR valve....

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1897 PID: SID 27 SPN: 641 FMI: 12 VGT Actuator Controller- Bad Intelligent Device or Component

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

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1898 PID: SID 027 SPN: 641 FMI: 13 VGT Actuator Controller- Out of Calibration

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

21 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 1921 PID: SID 324 SPN: 3251 FMI: 16 Aftertreatment Diesel Particulate Filter Differential Pressure- Data Valid But Above Normal Operating Range- Moderately Severe Level

Circuit DescriptionThe engine aftertreatment system monitors the soot load in the aftertreatment diesel particulate filter. Under normal operating conditions, the...

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