Paccar
PACCAR PX-9 CM2350 (2013-17) Fault Code:2265 PID:SID 126 SPN:1075 FMI:3 Electric Lift Pump for Engine Fuel Supply Circuit – Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Reason:Electric Lift Pump for Engine Fuel Supply Circuit – Voltage Above Normal or Shorted to High Source. High voltage or open circuit detected at the fuel lift pump signal circuit. Effect:Engine may not start or may be difficult to start. Circuit Description:The fuel lift pump circuit is a discrete output in the engine control module (ECM) that controls the electric fuel lift pump. The lift pump is grounded in the ECM. Component Location:The fuel lift pump is mounted on the intake side of the engine. Conditions for Running the Diagnostics:This diagnostic runs when the keyswitch is in the ON position...
PACCAR PX-9 CM2350 (2013-17) Fault Code:2266 PID:SID 126 SPN:1075 FMI:4 Electric Lift Pump for Engine Fuel Supply Circuit – Voltage Below Normal or Shorted to Low Source
Posted by Diezel Solutions on
Reason:Electric Lift Pump for Engine Fuel Supply Circuit – Voltage Above Normal or Shorted to High Source. High voltage or open circuit detected at the fuel lift pump signal circuit. Effect:Engine may not start or may be difficult to start. Circuit Description:The fuel lift pump circuit is a discrete output in the engine control module (ECM) that controls the electric fuel lift pump. The lift pump is grounded in the ECM. Component Location:The fuel lift pump is mounted on the intake side of the engine. Conditions for Running the Diagnostics:This diagnostic runs when the keyswitch is initially turned to the...
PACCAR PX-9 CM2350 (2013-17) Fault Code:227 PID:SID 211 SPN:3510 FMI:3 Sensor Supply 2 Circuit – Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Reason:Sensor Supply 2 Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at sensor supply number 2 circuit. Effect:Possible reduced engine performance. Circuit Description:The sensor supply 2 circuit of the engine control module (ECM) provides a 5 volt supply to various sensors on the engine harness. Refer to the wiring diagram for sensor supply identification. Component Location:Sensor Supply 2 originates in the Engine Wiring Harness portion of the ECM. It supplies 5 volts to sensors in the engine wiring harness. Conditions for Running the Diagnostics:This diagnostic runs continuously when the keyswitch is in the ON position...
PACCAR PX-9 CM2350 (2013-17) Fault Code:2272 PID:27 SPN:27 FMI:4 EGR Valve Position Circuit – Voltage Below Normal or Shorted to Low Source
Posted by Diezel Solutions on
Reason:EGR Valve Position Circuit – Voltage Below Normal or Shorted to Low Source. Low signal voltage has been detected at the EGR valve position sensor circuit. Effect:Possible reduced engine performance Circuit Description:The exhaust gas recirculation (EGR) valve is controlled by a brushless motor located on top of the EGR valve. The EGR valve motor uses three different motor legs to move the valve through its range of motion. The ECM uses the EGR motor A, B, and C wires to command the EGR valve to the appropriate position in order to meet EGR flow targets.The EGR valve motor contains three...
PACCAR PX-9 CM2350 (2013-17) Fault Code:2273 PID:411 SPN:411 FMI:3 Exhaust Gas Recirculation Differential Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Reason:Exhaust Gas Recirculation Valve Delta Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the EGR differential pressure sensor circuit. Effect:Possible reduced engine performance. Circuit Description:The exhaust gas recirculation (EGR) differential pressure sensor has two ports that sense exhaust pressure. The sensor outputs a voltage which represents the pressure difference between the two ports located across an orifice in the EGR tube. The engine control module (ECM) uses this pressure to determine how much exhaust gas is flowing in the EGR connection tube to the intake manifold. This information is used to...