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Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 249 PID: PID 171 SPN: 171 FMI: 3 Ambient Air Temperature Sensor 1 Circuit- Voltage Above Normal or Shorted to High Source
Posted by Diezel Solutions on
Circuit DescriptionThe ambient air temperature sensor is a variable resistor sensor and is used to measure the temperature of the ambient air. The engine control module (ECM) uses this temperature reading to optimize engine performance, and determine if heating of the SCR system is required. The engine control module (ECM) supplies 5 volts to the ambient air temperature signal circuit. The ECM monitors the change in voltage caused by changes in the resistance of the sensor to determine the ambient air temperature. Component LocationThe mounting location for the ambient air temperature sensor is OEM dependent. Refer to the appropriate OEM...
Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2533 PID: SPN: 1323 FMI: 11/31 Engine Misfire Cylinder 1 – Condition Exists
Posted by Diezel Solutions on
Lamp:Red Reason:Engine misfire has been detected in cylinder number 1. 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 a signal to the ECM on the exhaust gas pressure sensor signal circuit. This...
Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2534 PID: SPN: 1324 FMI: 11/31 Engine Misfire Cylinder 2 – Condition Exists
Posted by Diezel Solutions on
Lamp:Red Reason:Engine misfire has been detected in cylinder number 2. 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 a signal to the ECM on the exhaust gas pressure sensor signal circuit. This...
Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2535 PID: SPN: 2535 FMI: 11/31 Engine Misfire Cylinder 3 – Condition Exists
Posted by Diezel Solutions on
Lamp:Red Reason:Engine misfire has been detected in cylinder number 3. 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 a signal to the ECM on the exhaust gas pressure sensor signal circuit. This...
Cummins X12 CM2350 X119B (2018 & Newer) Fault Code: 2536 PID: SPN: 1326 FMI: 11/31 Engine Misfire Cylinder 4 – Condition Exists
Posted by Diezel Solutions on
Lamp:Red Reason:Engine misfire has been detected in cylinder number 4. 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 a signal to the ECM on the exhaust gas pressure sensor signal circuit. This...