Pending codes can also be intermittent faults or faults that need to be “seen” in at least two warm-up cycles to set them to active. If the values go over or drop under what is expected, then the ECM will log a fault code. The Electronic Control Module (ECM) in the engine monitors all the readings constantly as the engine runs.
Every circuit and sensor in a modern diesel engine gives off a certain reading and specific voltage signal.
What Are Cummins Fault Codes?įault codes indicate that the engine is experiencing a problem. Once the Cummins fault codes are obtained, the next step is to find out what they mean and also how to clear them. These days it’s nearly impossible to work on or repair a Cummins engine without knowing the fault codes.
