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Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 338 PID: SID 87 SPN: 1267 FMI: 3 Idle Shutdown Vehicle Accessories Relay Driver Circuit- Voltage Above Normal or Shorted to High Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe Engine Control Module (ECM) Idle Shutdown feature has an optional parameter for a shutdown accessory relay. When this parameter is set to “Installed”, the ECM sends a signal to energize the relay and turn off vehicle accessories during idle shutdown events. The idle shutdown relay return circuit varies by Original Equipment Manufacturer (OEM). The return circuit can be returned to the ECM through the ECM Return (General) or connected directly to ground. Refer to the OEM service manual to determine grounding configuration. Component LocationThe idle shutdown relay location varies by OEM. Refer to the OEM service manual to...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 3382 PID: SPN: 3058 FMI: 18 Engine Exhaust Gas Recirculation (EGR) System- Data Valid But Below Normal Operating Range- Moderately Severe Level
Posted by PerDiezel Solutions on
Circuit DescriptionThe 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 control the EGR valve for correct emission levels.The ECM provides a 5 volt supply to the EGR differential pressure sensor on the sensor supply circuit. The ECM also provides a ground on...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 3383 PID: PID 411 SPN: 3058 FMI: 16 Engine Exhaust Gas Recirculation (EGR) System- Data Valid But Above Normal Operating Range- Moderately Severe Level
Posted by PerDiezel Solutions on
Circuit DescriptionThe 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 control the EGR valve for correct emission levels.The ECM provides a 5 volt supply to the EGR differential pressure sensor on the sensor supply circuit. The ECM also provides a ground on...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 3385 PID: PID 105 SPN: 411 FMI: 16 Intake Manifold 1 Temperature- Data Valid But Below Normal Operational Range- Moderately Severe Level
Posted by PerDiezel Solutions on
Circuit DescriptionThe ECM supplies 5 volts to the intake manifold temperature signal circuit, and monitors the change in voltage caused by changes in the resistance of the sensor to determine the intake manifold temperature. When the intake air is cold, the sensor (or thermistor) resistance is high. The ECM signal voltage only pulls down a small amount through the sensor to a ground. Therefore, the ECM senses a high signal voltage or low temperature. When the intake air is warm, the sensor resistance is low. The signal voltage pulls down a large amount. Therefore, the ECM senses a low signal...
Cummins X15 CM2450 X124B (2018 & Newer) Fault Code: 339 PID: SID 87 SPN: 1267 FMI: 4 Idle Shutdown Vehicle Accessories Relay Driver Circuit- Voltage Below Normal or Shorted to Low Source
Posted by PerDiezel Solutions on
Circuit DescriptionThe Engine Control Module (ECM) Idle Shutdown feature has an optional parameter for a shutdown accessory relay. When this parameter is set to “Installed”, the ECM sends a signal to energize the relay and turn off vehicle accessories during idle shutdown events. The idle shutdown relay return circuit varies by Original Equipment Manufacturer (OEM). The return circuit can be returned to the ECM through the ECM Return (General) or connected directly to ground. Refer to the OEM service manual to determine grounding configuration. Component LocationThe idle shutdown relay location varies by OEM. Refer to the OEM service manual to...
