Cummins ISM CM870 (2003-06) Fault Code: 546 PID: P094 SPN: 94 FMI: 3/3 Rail Fuel Pressure Sensor Circuit – shorted high. High signal voltage detected at the rail fuel pressure circuit.
The rail fuel 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 546, check for multiple faults.
Possible causes:
1)Open return circuit in the engine harness, connectors, or sensor.
2)Signal circuit shorted to sensor supply or battery voltage.
3)Sensor supply circuit shorted to battery voltage.
Possible repairs:
1)Replace the rail fuel pressure sensor.
2)ir or replace the engine harness.
3)Replace the ECM.
![Volvo Penta EPC 6 Offline VMware [12.2021] VMware](https://www.ecuforcetruck.com/wp-content/uploads/2022/11/VOLVO-PENTA-2021-A-300x300.jpg)
Related products
-
-
-
Allison 1000 & 2000 Gen 4 Fault Codes: U1096 J1850 (Class 2) IPC Controller State of Health Failure
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1301 J1850 (Class 2) Serial Data Communication Link Low
1000 & 2000 Gen 4 $50.00 -
-
-
Allison 1000 & 2000 Gen 4 Fault Codes: P0122 Pedal Position Sensor Circuit Low Voltage
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1000 Class 2 Loss of Serial Data Communication
1000 & 2000 Gen 4 $50.00 -
-
Allison 1000 & 2000 Gen 4 Fault Codes: P2773 Torque Control Request Ignored – ECM/TCM
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1300 J1850 (Class 2) Serial Data Communication Link Low
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: U1064 J1850 (Class 2) TBC Controller State of Health Failure
1000 & 2000 Gen 4 $50.00 -
Allison 1000 & 2000 Gen 4 Fault Codes: P0848 Transmission Pressure Switch Solenoid D Circuit High
1000 & 2000 Gen 4 $50.00 -
-
Allison 1000 & 2000 Gen 4 Fault Codes: P0870 Transmission Pressure Switch Solenoid E Circuit
1000 & 2000 Gen 4 $50.00
