Cumminz

Cummins ISB CM850 (2003-06) Fault Code: 2183 PID: SID 28 SPN: 1072 FMI: 4 Engine Brake Actuator Driver 1 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at the engine brake solenoid number 1 signal circuit. Possible causes of this fault code include a short circuit to ground in the engine harness, connector, or engine brake solenoids. On-Board Diagnostics (OBD) Information: 1)The ECM illuminates the appropriate amber or red lamp when the diagnostic runs and fails.2)The ECM turns OFF the appropriate fault lamp when the diagnostic runs and passes. Possible repairs: 1)Repair or replace the...

Cummins ISB CM850 (2003-06) Fault Code: 2185 PID: SID 232 SPN: FMI: 3 Sensor Supply Voltage 4 Circuit – Voltage Above Normal or Shorted to High Source. High voltage detected at +5 volt sensor supply circuit to the accelerator pedal position sensor. This fault is logged when the ECM senses more than +5.25 volts on the accelerator pedal or lever position +5 volt supply line. This can be caused by a short circuit to a voltage source in the OEM harness or a short circuit to an actuator signal circuit that is greater than +5 volts. Possible repairs: 1)Repair or...

Cummins ISB CM850 (2003-06) Fault Code: 2186 PID: SID 232 SPN: FMI: 4 Sensor Supply Voltage 4 Circuit – Voltage Below Normal or Shorted to Low Source. Low voltage detected at +5 VDC sensor supply circuit to the accelerator pedal position sensor. For Marine application, the accelerator lever is typically located in the engine room or at the helm. Low voltage on the +5 VDC supply line can be caused by a short circuit to ground in the supply line, a short circuit between the supply line and return circuit, a failed accelerator, or a failed ECM power supply. Possible...

Cummins ISB CM850 (2003-06) Fault Code: 2195 PID: SID 51 SPN: 703 FMI: 14 Auxiliary Equipment Sensor Input Engine Protection Critical – Special Instructions. OEM switch signal on the OEM harness indicates engine protection condition. Verify the engine control module (ECM) calibration is correct. Check the calibration revision history found on QuickServe? Online for applicable fixes to the calibration stored in the ECM. If necessary, calibrate the ECM. Verify with the driver the engine operating condition when the fault occurs. Depending on the engine speed and load, the OEM switch can detect a condition that falls below or exceeds the...

Cummins ISB CM850 (2003-06) Fault Code: 221 PID: 108 SPN: 108 FMI: 3 Barometric Pressure Sensor Circuit – Voltage Above Normal or Shorted to High Source. High signal voltage detected at barometric pressure circuit. The barometric pressure sensor shares supply and return wires in the engine harness with other sensors. Opens and shorts in the engine harness can cause multiple fault codes to be active. Before troubleshooting Fault Code 221, check for multiple faults. Possible causes: 1)Open return circuit in the harness, connectors, or sensor2)Signal circuit shorted to sensor supply or battery voltage. Operation below sea level: Note: If you...