Case IH P20A3: Vent valve (Reductant Purge Control Valve) - short circuit high

The vent valve (Reductant Purge Control Valve) is experiencing a short circuit on the high side. This fault indicates an electrical issue within the circuit associated with the vent valve.

1. 1

   The wiring and connections related to the vent valve (Reductant Purge Control Valve)

2. 2

   The power supply to the vent valve (Reductant Purge Control Valve)

3. 3

   The circuitry associated with the vent valve (Reductant Purge Control Valve)

1. 1

   Inspect

   Inspect the wiring and connections for the vent valve (Reductant Purge Control Valve) for damage, wear, or loose connections.

2. 2

   Test

   Test the power supply to the vent valve (Reductant Purge Control Valve) to ensure it is receiving the correct voltage.

3. 3

   Check

   Check the circuitry associated with the vent valve (Reductant Purge Control Valve) for any signs of electrical faults or damage.