Cumminz

Cummins ISB CM850 (2003-06) Fault Code: 1712 PID: SPN: 3363 FMI: 1 Catalyst Tank Heater Circuit ? Data Valid But Below Normal Operating Range ? Moderately Severe Level. The catalyst solution temperature did not increase when the catalyst tank heater was commanded on. This fault code is triggered when the catalyst tank heater is commanded on by the engine ECM, but no corresponding temperature increase in the catalyst tank temperature was recorded by the catalyst temperature sensor. Possible causes: 1)Failed catalyst tank heater relay2)Faulty power supply to the catalyst tank heater3)Faulty ground circuit to the catalyst tank heater4)Faulty wiring between...

Cummins ISB CM850 (2003-06) Fault Code: 1713 PID: SPN: 3363 FMI: 0 Catalyst Tank Heater Circuit – Data Valid But Above Normal Operating Range – Moderately Severe Level. The catalyst tank heater is continuously in the on position. This fault code is triggered when the catalyst tank heater is determined to be in the on position when the engine ECM is commanding the heater to be in the off position. To determin if the temperature sensors are reading a sensible value, they can be compared to each other at keyswitch ON, after an 8-hour period with the engine not running....

Cummins ISB CM850 (2003-06) Fault Code: 1716 PID: SPN: 411 FMI: 11 Auxiliary Temperature Sensor Input 1 Circuit – Root Cause Not Known. High temperature detected by the OEM temperature sensor or by the engine coolant temperature sensor. This fault code indicates that coolant temperature has exceeded the engine protection limits for high coolant temperature. On-Board Diagnostics (OBD) information: 1)The ECM illuminates the appropriate amber or red fault lamp when the diagnostic runs and fails2)The ECM turns off the appropriate fault lamp when the diagnostic runs and passes. Possible repairs: 1)Replace the ECM.2)Replace the OEM harness.

Cummins ISB CM850 (2003-06) Fault Code: 1717 PID: SPN: 3241 FMI: 15 Exhaust Gas Temperature 1 ? Data Valid but Above Normal Operational Range ? Least Severe Level. High catalyst inlet temperature has been detected. This fault is triggered when the temperature at the catalyst inlet exceeds the maximum allowable temperature for a given engine rating. Leaks in the charge air system or a faulty turbocharger can cause high exhaust gas temperature. On-Board Diagnostics (OBD) Information: 1)The ECM illuminates the appropriate amber or red fault lamp when the diagnostic runs and fails.2)The ECM turns OFF the appropriate fault lamp when...

Cummins ISB CM850 (2003-06) Fault Code: 1718 PID: SPN: 1322 FMI: 11 Engine Misfire for Multiple Cylinders ? Condition Exists. Engine misfire has been detected in multiple cylinder numbers. If Fault Code 1718 is inactive in the ECM memory and there is no complaint such as ?low power? or ?engine misfire?, it is possible that an intermittent event such as air entering the fuel system following a filter change caused the fault. Inactive counts of Fault Code 1718 should be disregarded unless other performance symptoms are present. The engine coolant temperature must be greater than 160?F before this diagnostic will...