PACCAR MX (2004 Emissions) Fault Code: P2239 Lambda – Current Too High on ECU (D420) Pin (C45)

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  PACCAR PX-9 CM2350 (2013-17) Fault Code:187 PID:SID 211 SPN:3510 FMI:4 Sensor Supply 2 Circuit – Voltage Below Normal or Shorted to Low Source

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  PACCAR PX-9 CM2350 (2013-17) Fault Code:1939 PID:SID 212 SPN:3597 FMI:3 ECU Power Output Supply Voltage 1 – Voltage Above Normal or Shorted to High Source

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  PACCAR PX-9 CM2350 (2013-17) Fault Code1938 PID:SID 212 SPN:3597 FMI:1 ECU Power Output Supply Voltage 1 – Data Valid But Below Normal Operational Range – Moderately Severe Level

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