New Holland 19541 – New Holland Dosing Control Unit Dcu: Coolant control valve mechanically blocked/closed-P20A1 vent valve test plausibility test (startup)

The coolant control valve is mechanically blocked or closed, which affects the plausibility test of the P20A1 vent valve during startup. This condition may prevent proper operation of the cooling system.

1. 1

   Coolant control valve

2. 2

   P20A1 vent valve

1. 1

   Inspect

   Inspect the coolant control valve for mechanical blockage or closure.

2. 2

   Test

   Test the P20A1 vent valve to verify its functionality during the startup plausibility test.