New Holland 3388 – New Holland Engine: Low 12VH Voltage Supply

The 12VH voltage supply is below the required level, which may affect the operation of the engine system.

1. 1

   Voltage supply to the 12VH circuit

2. 2

   Connections and wiring related to the 12VH circuit

3. 3

   Power source for the 12VH circuit

1. 1

   Check the voltage supply

   Use a multimeter to measure the voltage at the 12VH circuit to confirm it is below the expected level.

2. 2

   Inspect connections

   Examine all connections and wiring associated with the 12VH circuit for looseness, corrosion, or damage.

3. 3

   Test the power source

   Verify that the power source providing the 12VH voltage is functioning properly.