New Holland 3957 – ENGINE: COM1 Output Short to Ground or TWV1 or 3 Output Short to Ground

The fault code indicates a short to ground in the COM1 output circuit or in the output circuits of TWV1 or TWV3. This may cause improper operation of the affected circuits or components.

1. 1

   The COM1 output wiring and connections for signs of damage or grounding

2. 2

   The TWV1 and TWV3 output wiring and connections for signs of damage or grounding

3. 3

   The integrity of the wiring harness associated with the affected circuits

1. 1

   Inspect

   Inspect the COM1 output wiring and connections for damage, wear, or contact with ground.

2. 2

   Inspect

   Inspect the TWV1 and TWV3 output wiring and connections for damage, wear, or contact with ground.

3. 3

   Test

   Test the wiring harness for continuity and insulation integrity using a multimeter or appropriate testing equipment.