New Holland 19163: Short Circuit of the Cooling Control Valve to Battery Voltage or Open Load

A short circuit has occurred in the cooling control valve, specifically the P20A3 vapor vent valve (reduction purge control valve), causing it to be connected to battery voltage or an open load. This condition may lead to improper operation of the cooling system and potential damage to the electrical system.

1. 1

   The P20A3 vapor vent valve (reduction purge control valve) for signs of damage or short circuit

2. 2

   Wiring and connections related to the P20A3 vapor vent valve (reduction purge control valve)

3. 3

   The presence of battery voltage on the P20A3 vapor vent valve (reduction purge control valve) when it should not be active

1. 1

   Inspect the P20A3 vapor vent valve (reduction purge control valve)

   Check for physical damage, corrosion, or signs of a short circuit.

2. 2

   Test the wiring and connections

   Use a multimeter to check for continuity and ensure there is no unintended connection to battery voltage.

3. 3

   Reset the fault code

   After repairs, reset the fault code and monitor the system to ensure the issue is resolved.