New Holland 19183 – New Holland Dosing Control Unit Dcu: Reverting valve (4-2 way valve) electrically – open load – P20A0 vent valve (reductant purge control valve) – open circuit

The system has detected an open circuit in the electrical connection related to the reverting valve (4-2 way valve) and the P20A0 vent valve (reductant purge control valve). This condition may prevent proper operation of the affected component.

1. 1

   The wiring and connections associated with the reverting valve (4-2 way valve)

2. 2

   The wiring and connections associated with the P20A0 vent valve (reductant purge control valve)

3. 3

   The electrical continuity of the circuit leading to the reverting valve (4-2 way valve) and the P20A0 vent valve (reductant purge control valve)

1. 1

   Inspect

   Visually inspect the wiring and connectors for the reverting valve (4-2 way valve) and the P20A0 vent valve (reductant purge control valve) for damage, corrosion, or disconnection.

2. 2

   Test

   Use a multimeter to test for electrical continuity in the circuit connected to the reverting valve (4-2 way valve) and the P20A0 vent valve (reductant purge control valve).

3. 3

   Repair

   If an open circuit is found, repair or replace the damaged wiring or connectors as necessary.