New Holland 386 – ENGINE: 5 Volt Sensor Supply Voltage Is Too High

The 5 Volt Sensor Supply voltage is exceeding the acceptable range, which may affect the proper operation of sensors connected to this power supply.

1. 1

   The voltage output of the 5 Volt Sensor Supply

2. 2

   Connections and wiring related to the 5 Volt Sensor Supply

3. 3

   Power supply circuitry within the ENGINE controller

1. 1

   Measure the voltage of the 5 Volt Sensor Supply

   Use a multimeter to verify the voltage level of the 5 Volt Sensor Supply. Compare it to the specifications provided in the service manual.

2. 2

   Inspect the wiring and connections

   Check for any loose, damaged, or corroded connections related to the 5 Volt Sensor Supply circuit.

3. 3

   Verify the power supply circuitry

   Examine the internal components of the ENGINE controller for any faults that may be causing the voltage to be too high.