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18 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 6338 PID: SPN: 639 FMI: 13/13 SAE J1939 Multiplexing Configuration Error – Out of Calibration

Lamp:None Reason:The ECM expected information from a multiplexed device but only received a portion of the necessary information. Effect:At least...

18 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 6339 PID: SPN: 96 FMI: 9 Fuel Level 1- Abnormal Update Rate

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

18 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 6341 PID: SPN: 96 FMI: 13 Fuel Level 1- Out of Calibration

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

18 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 6342 PID: SPN: 38 FMI: 9 Fuel Level 2- Abnormal Update Rate

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

18 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 6343 PID: SPN: 38 FMI: 13 Fuel Level 2- Out of Calibration

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

18 August, 2025

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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 6416 PID: SPN: 3703 FMI: 31 Aftertreatment 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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