Paccar
PACCAR PX-9 CM2350 (2013-17) Fault Code:2367 PID:SID 80 SPN:1073 FMI:3 Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Reason:Engine Brake Actuator Driver Output 2 Circuit – Voltage Above Normal or Shorted to High Source. Open circuit or high voltage detected at the engine brake solenoid number 2 signal circuit. Effect:Possible reduce engine braking performance. Circuit Description:The engine control module (ECM) controls engine brakes on cylinders 4, 5, and 6 by sending a signal on the engine brake solenoid number 2 signal circuit. If an engine brake is installed, there will be a jumper harness from this connector to the engine brake pass-through connectors on the rocker lever housing. Component Location:The engine brake solenoids are located under the valve...
PACCAR PX-9 CM2350 (2013-17) Fault Code:237 PID:SID 30 SPN:644 FMI:2 External Speed Command Input (Multiple Unit Synchronization) – Data Erratic, Intermittent, or Incorrect
Posted by Diezel Solutions on
Reason:Multiple Unit Synchronization Switch – Data Erratic, Intermittent, or Incorrect. Multiple unit synchronous ON/OFF switch and multiple unit synchronous Effect:The multiple unit synchronization feature will be disabled Circuit Description:The multiple unit synchronization feature uses an ON/OFF switch and a complementary switch. The complementary switch is used by the ECM to determine the type of coupling (hard or soft) to use between multiple engines when the multiple unit synchronization switch is engaged/installed by the OEM to support this feature. Component Location:The multiple unit synchronization switch is mounted by the OEM. Refer to the OEM manual for specific switch location. Conditions for...
PACCAR PX-9 CM2350 (2013-17) Fault Code:2372 PID:95 SPN:95 FMI:0 Fuel Filter Differential Pressure – Data Valid But Above Normal Operating Range – Moderately Severe Level
Posted by Diezel Solutions on
Reason:Fuel Filter Differential Pressure – Data Valid But Above Normal Operational Range – Moderately Severe Level. Excessive fuel flow restriction to the high pressure fuel pump has been detected. Effect:Possible reduced engine performance. Circuit Description:The engine control module (ECM) monitors engine operating conditions, including the reading of fuel rail pressure, and changes the flow command to either increase (OPEN the fuel pump actuator) or decrease (CLOSE the fuel pump actuator) the fuel supply to the high-pressure pump. Component Location:There are two fuel filters and several original equipment manufacturer (OEM) supplied components that can impact this fault code. The pressure-side fuel...
PACCAR PX-9 CM2350 (2013-17) Fault Code:2372 PID:95 SPN:95 FMI:16 Fuel Filter Differential Pressure – Data Valid But Above Normal Operating Range – Moderately Severe Level
Posted by Diezel Solutions on
Reason:Fuel Filter Differential Pressure – Data Valid But Above Normal Operational Range – Moderately Severe Level. Excessive fuel flow restriction to the high pressure fuel pump has been detected. Effect:Possible reduced engine performance. Circuit Description:The engine control module (ECM) monitors engine operating conditions, including the reading of fuel rail pressure, and changes the flow command to either increase (OPEN the fuel pump actuator) or decrease (CLOSE the fuel pump actuator) the fuel supply to the high-pressure pump. Component Location:There are two fuel filters and several original equipment manufacturer (OEM) supplied components that can impact this fault code. The pressure-side fuel...
PACCAR PX-9 CM2350 (2013-17) Fault Code:2373 PID:131 SPN:1209 FMI:3 Exhaust Gas Pressure Sensor 1 Circuit – Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Reason:Exhaust Gas Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at the exhaust gas pressure circuit. Effect:Possible reduced engine performance Circuit Description:The exhaust gas pressure sensor is used to measure exhaust gas pressure in the exhaust manifold. This information is used by the engine control module (ECM) to control emissions and exhaust gas recirculation (EGR) valve operation. The ECM provides a 5 volt supply to the exhaust gas pressure sensor on the sensor supply circuit. The ECM also provides a ground on the sensor return circuit. The exhaust gas pressure sensor provides...