Cumminz

Cummins ISX11.9 CM2250 (2010-12) Fault Code: 11...

Circuit DescriptionThe ECM uses diagnostic software to verify injector operation. During selected motoring conditions, each injector is fired. The fueling quantity and timing are then compared to a specified threshold....

Cummins ISX11.9 CM2250 (2010-12) Fault Code: 11...

Circuit DescriptionThe electronic control module (ECM) receives constant voltage from the batteries through the unswitched battery wires that are connected directly to the positive (+) battery post. The ECM receives...

Cummins ISX11.9 CM2250 (2010-12) Fault Code: 11...

Circuit DescriptionThe ECM has internal diagnostics that continuously run and check the internal memory. Component LocationThe ECM mounting location varies depending on engine model and can be mounted either on...

Cummins ISX CM870 (2003-06) Fault Codes: 111 PI...

This fault code can only be caused by an internal ECM problem. Repairs are not possible for the ECM.

Cummins ISX CM870 (2003-06) Fault Code: 951 PID...

At engine idle speeds, the ECM measures the instantaneous acceleration of each cylinder as it fires to determine the cylinder’s power. The ECM adjusts fueling to individual cylinders if the...

Cummins ISX CM870 (2003-06) Fault Code: 9121 PI...

The ECM calculates the temperature of the EGR valve motor. If the ECM detects excessive temperatures for a calibrated period of time this fault is recorded and the valve is...