New Holland 19181 – New Holland Dosing Control Unit Dcu: Reverting Valve (4-2 Way Valve) Electrically - Short Circuit to Battery

The fault code indicates an electrical issue with the Reverting Valve (4-2 Way Valve), specifically a short circuit to battery. This may affect the proper operation of the valve and the system it is part of.

1. 1

   The wiring and connections associated with the Reverting Valve (4-2 Way Valve)

2. 2

   The P20A3 vent valve (reductant purge control valve) for any signs of damage or short circuit

3. 3

   The electrical circuit for the Reverting Valve (4-2 Way Valve) and the P20A3 vent valve (reductant purge control valve)

1. 1

   Inspect

   Inspect the wiring and connections of the Reverting Valve (4-2 Way Valve) and the P20A3 vent valve (reductant purge control valve) for any damage, wear, or short circuits.

2. 2

   Test

   Test the electrical circuit for the Reverting Valve (4-2 Way Valve) and the P20A3 vent valve (reductant purge control valve) using a multimeter to identify any short circuits.

3. 3

   Repair or Replace

   If a short circuit is found, repair or replace the affected wiring, connections, or component as necessary.