Cummins ISX15 CM2250 (2010-12) Fault Code: 3151 PID: SPN: 4794 FMI: 31 Aftertreatment 1 SCR Catalyst System Missing- Condition Exists - EcuForce Truck (2024)

FAQs

What is the code 4334 on a Cummins fault? ›

What does fault code SPN 4334 mean? SPN 4334 indicates that the diesel exhaust fluid (DEF) pressure is too low and below the normal operating range.

SPN 4795/FMI 31 - MY13

This diagnostic is typically Particulate Filter (DPF) Outlet Temperature Response - Too Fast. NOTE: This fault indicates the ACM2. 1 has detected a sudden temperature shift on the DPF outlet temperature sensor.

Using a code reader tool, connect to the ECM and find the “fault codes” tab. The displayed codes can generally be clicked on one by one. Another option is to select “erase all faults” and then follow the onscreen instructions. At the end of the procedure, the ignition key should be turned off.

If the 3135 and 125 are connected, the DOC may be plugged or the SCR may be plugged. If they are not connected the 3135 may be a sensor issue, wiring issue or a leak on one of the differential pressure sensor tubes.

Key points include: - The intake manifold pressure sensor monitors intake pressure and reports to the ECM. Fault code 433 indicates an issue with the sensor circuit. - Troubleshooting starts by inspecting the sensor and harness for damage. Pins are checked for issues.

A sensor which detects the operating pressure of fluid in the diesel exhaust fluid system.

In most cases, successfully repairing the issue that caused your light to come on will cause the check engine light to turn off automatically—but only after 10 to 20 “cycles”. A cycle, in this instance, refers to the process of turning the vehicle on, running it for some time, and turning it off again.

SPN 3251/FMI 1 - GHG14

This diagnostic is typically Diesel Particulate Filter (DPF) Pressure Out of Range Low. This fault code sets when the pressure across the DPF is less than 1.5 kPa (0.2 psi) for more than 10 seconds.

What is code 3134 on Cummins? ›

6.7L Cummins, 2018 KW, Code 3134. "DPF outlet pressure sensor circuit voltage below normal or shorted to low. Low signal.

The most common cause of the P0720 code and its related codes is usually a defective or damaged output or input speed sensor. Sometimes, corroded wiring causes the code to set, as well as loose connectors surrounding either sensor.

The diagnostic trouble code (DTC) P0743 stands for “Torque Converter Clutch Solenoid Circuit Electrical.”

Low voltage during cranking can cause the ECM power supply to drop below specifications and log Fault Code 434 . Corrupted voltage (short interruptions or spikes that can only be seen with a with a oscilloscope) on keyswitch line can cause this fault.

SPN 4334 flags a discrepancy within the DEF Pressure sensor circuit, whether it's an invalid reading or an indication of a circuit fault.

Fault Code 73 is set when the X-Y Shift Finger attempts to engage a gear, but the X-Y Gear Position Sensor indicates that the transmission was unable to engage that gear. The TECU detected a system failure, but was unable to detect the specific root cause.