Cummins ISB CM850 (2003-06) Fault Code: 2265 PID: SID 126 SPN: 1075 FMI: 3 Electric Lift Pump for Engine Fuel Supply Circuit – Voltage Above Normal, or Shorted to High Source. High voltage or open detected at the fuel lift pump signal circuit.
On 12 VDC Automotive and 24 VDC Industrial or Marine systems, this fault code becomes active if the ECM detects an open circuit at keyswitch ON. The cause of this fault code is an open circuit in the electric fuel lift pump circuit.
If the fault code is intermittent, look for causes of an intermittent open circuit, such as loose pins and bad connections. At keyswitch ON, the lift pump duty cycle ramps to 100 percent. This fault code can detect open circuit conditions only at keyswitch ON. If an open circuit condition is indicated after the engine is started (while the lift pump is already running), Fault Code 2265 will not become active.
On 24 VDC Automotive systems, this fault code becomes active if the ECM detects an open circuit at keyswitch ON. Causes of this fault code are an open circuit in the electric fuel lift pump wiring harness, relay, or engine harness. This fault code will not become active if the voltage regulator or electric fuel lift pump has failed.
1)Replace the electric fuel lift pump relay.
2)Repair or replace the electric fuel lift pump wiring harness.
3)Replace the engine harness.
4)Replace the electric fuel lift pump.
5)Replace the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 2249 PID: 157 SPN: 157 FMI: 1 Injector Metering Rail 1 Pressure – Data Valid but Below Normal Operational Range – Most Severe Level. The ECM has detected that fuel pressure is lower than commanded pressure.
Cummins ISB CM850 (2003-06) Fault Code: 2217 PID: SID 240 SPN: 630 FMI: 111 Engine Control Module Calibration Program Memory (RAM) Corruption – Condition Exists. Severe loss of data from the ECM.
Cummins ISB CM850 (2003-06) Fault Code: 2216 (ISC) PID: 94 SPN: 94 FMI: 1 Fuel Pump Delivery Pressure High – Data Valid but Above Normal Operational Range – Moderately Severe Level. The ECM has detected that fuel pressure is higher than commanded pressure.
Cummins ISB CM850 (2003-06) Fault Code: 2216 (ISB) PID: 94 SPN: 94 FMI: 0 Fuel pump delivery pressure – data valid but above normal operational range – moderately severe level. The ECM has detected fuel pressure in the fuel rail that is higher than the commanded pressure.
Cummins ISB CM850 (2003-06) Fault Code: 2215 (ISC) PID: 94 SPN: 94 FMI: 0 Fuel Pump Delivery Pressure Low – Data Valid but Below Normal Operational Range – Moderately Severe Level. The ECM has detected that fuel pressure is lower than commanded pressure.
Cummins ISB CM850 (2003-06) Fault Code: 2215 (ISB) PID: 94 SPN: 94 FMI: 1 Fuel Pump Delivery Pressure – Data Valid but Below Normal Operational Range – Moderately Severe Level. The ECM has detected the fuel pressure in the fuel rail is lower than the commanded performance.
