New Holland 3399 – New Holland Engine: Fuel Lift Pump Relay Driver Fault

The system has detected a fault in the relay driver responsible for operating the fuel lift pump. This may prevent the fuel lift pump from functioning correctly, potentially affecting engine performance.

1. 1

   Fuel lift pump relay driver

2. 2

   Wiring connections to the fuel lift pump relay driver

3. 3

   Power supply to the fuel lift pump relay driver

1. 1

   Inspect

   Inspect the fuel lift pump relay driver for visible damage or signs of failure.

2. 2

   Check

   Check the wiring connections to the fuel lift pump relay driver for looseness, corrosion, or damage.

3. 3

   Verify

   Verify the power supply to the fuel lift pump relay driver using a multimeter or diagnostic tool.