New Holland 3959 – ENGINE: COM2 Output Short to Battery or TWV2or4 Output Short to Battery

The fault code indicates a short circuit in the COM2 output or the TWV2or4 output to the battery. This may cause electrical system malfunctions or damage to the affected circuit.

1. 1

   The COM2 output wiring for damage or contact with the battery

2. 2

   The TWV2or4 output wiring for damage or contact with the battery

3. 3

   Connections and insulation of the affected circuit

1. 1

   Inspect

   Inspect the COM2 output wiring for signs of damage, wear, or contact with the battery.

2. 2

   Inspect

   Inspect the TWV2or4 output wiring for signs of damage, wear, or contact with the battery.

3. 3

   Test

   Test the affected circuit for continuity and insulation resistance using a multimeter or appropriate testing equipment.

4. 4

   Repair

   Repair or replace any damaged wiring or connections found during inspection.