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20 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2738 PID: SID 237 SPN: 626 FMI: 3 Start Enable Device 1 Circuit (Ether Injection)- Voltage Above Normal or Shorted to High Source

Circuit DescriptionThe ether injection circuit is a device used by the engine to control the ether injection operation. The ether...

20 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2739 PID: SID 237 SPN: 626 FMI: 4 Start Enable Device 1 Circuit (Ether Injection)- Voltage Below Normal or Shorted to Low Source

Circuit DescriptionThe ether injection circuit is a device used by the engine to control the ether injection operation. The ether...

20 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2754 PID: PID 81 SPN: 81 FMI: 16 Engine Diesel Particulate Filter Intake 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...

20 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2764 PID: PID 131 SPN: 1209 FMI: 16 Exhaust Gas Pressure- Data Valid But Above Normal Operating Range- Moderately Severe Level

Circuit DescriptionThe exhaust gas pressure sensor is used to measure exhaust gas pressure in the exhaust manifold. This information is...

20 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2771 PID: SPN: 3226 FMI: 9 Aftertreatment 1 Outlet Nox Sensor- Abnormal Update Rate

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

20 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2777 PID: SID 390 SPN: 3703 FMI: 31 Particulate Trap Active Regeneration inhibited Due to Inhibit Switch- Condition Exists

Circuit DescriptionThe OEM truck manufacturer can install a permit switch in the dash or send an inhibit message via the...

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