Cummins ISB CM850 (2003-06) Fault Code: 597 PID: 167 SPN: 167 FMI: 1 Electrical Charging System Voltage Low – Data Valid But Below Normal Operating Range – Moderately Severe Level. Low battery voltage detected by the battery voltage monitor feature. is fault code is part of the Alternator Failure Warning feature. The ECM can increase idle speed and deactivate the idle decrement switch if Idle Speedup is enabled. View the Alternator Failure Warning feature settings with INSITE? electronic service tool. Disabling the Alternator Failure Warning feature will also disable this fault code. Make sure the ECM unswitched battery supply is...

Cummins ISB CM850 (2003-06) Fault Code: 598 PID: 167 SPN: 167 FMI: 11 Electrical Charging System Voltage Low – Data Valid But Below Normal Operating Range – Most Severe Level. Very low battery voltage detected by the battery voltage monitor feature. This fault code is part of the Alternator Failure Warning feature. The ECM can increase idle speed and deactivate idle the decrement switch if Idle Speedup is enabled. View the Alternator Failure Warning feature settings with INSITE? electronic service tool. Disabling the Alternator Failure Warning feature will also disable this fault code. Make sure the ECM battery supply (+)...

Cummins ISB CM850 (2003-06) Fault Code: 599 PID: SID 25 SPN: 640 FMI: 14 Auxiliary Commanded Dual Output Shutdown – Special Instructions. The engine protection limit has been exceeded for the dual outputs calibrated limits. This fault code is activated when one of the OEM defined inputs has exceeded a calibratible limit. The triggers for shutdown are OEM dependent. Possible repairs: 1)Replace the OEM harness. Cummins ISB CM850 (2003-06) Fault Code: 598 PID: 167 SPN: 167 FMI: 11 Electrical Charging System Voltage Low – Data Valid But Below Normal Operating Range – Most Severe Level. Very low battery voltage detected...

Cummins ISB CM850 (2003-06) Fault Code: 649 PID: SID 153 SPN: 1378 FMI: 11 Change Lubricating Oil and Filter – Condition Exists. Change engine oil and filter. This fault code will only become active if the maintenance monitor is enabled in INSITE?. Make sure that the oil and filter are changed before clearing the fault. Possible repiars: 1)Change the engine lubricating oil and filter. Cummins ISB CM850 (2003-06) Fault Code: 599 PID: SID 25 SPN: 640 FMI: 14 Auxiliary Commanded Dual Output Shutdown – Special Instructions. The engine protection limit has been exceeded for the dual outputs calibrated limits. Cummins...

Cummins ISB CM850 (2003-06) Fault Code: 687 (ISB) PID: 103 SPN: 103 FMI: 18 Turbocharger number 1 speed low – warning level. Low turbocharger speed detected by the ECM. This fault will become active if the engine is running and the ECM detects boost pressure and engine speed but no turbocharger speed signal. Possible causes: 1)Turbocharger speed sensor failure2)Engine harness failure3)ECM failure. This fault becomes inactive at key-on or any time the speed signal from the turbocharger speed sensor returns. If the fault occurs intermittently, Fault Code 2345 can also be in the ECM memory. Look for causes of intermittent...