Cumminz

Cummins ISX CM870 (2003-06) Fault Code: 687 PID...

This fault may come active if the electronic control module (ECM) senses boost pressure and engine speed while at the same time a turbocharger speed signal is not present. Possible...

Cummins ISX CM870 (2003-06) Fault Code: 649 PID...

This fault code will only become active if the Maintenance Monitor is enabled in INSITE? electronic service tool. Make sure the oil and filter are changed before clearing the fault...

Cummins ISX CM870 (2003-06) Fault Code: 598 PID...

Make sure the ECM battery supply (+) is coming directly from the battery and not the starter. Possible cause: 1)Undercharged batteries caused by a malfunctioning alternator or regulator. Possible repairs:...

Cummins ISX CM870 (2003-06) Fault Code: 597 PID...

Make sure the ECM unswitched battery supply is coming directly from the battery and not the starter. Possible causes: 1)Undercharged batteries caused by a malfunctioning alternator or regulator.2)High-current devices on...

Cummins ISX CM870 (2003-06) Fault Code: 596 PID...

This fault code is part of the Alternator Failure Warning feature. The ECM can increase idle speed and deactivate idle decrement switch if idle speedup is enabled. Use INSITE? electronic...

Cummins ISX CM870 (2003-06) Fault Code: 595 PID...

NOTE: This fault code may become active if the protective shipping sticker is not removed from the port located on the end opposite of the connector. When installing a new...