New Holland 4721: 12V key lines and 12V key solenoid activation line not powered together

The 12V key line and the 12V key solenoid activation line are not receiving power simultaneously, which may prevent proper operation of the key system or related components.

1. 1

   Power supply to the 12V key line

2. 2

   Power supply to the 12V key solenoid activation line

3. 3

   Connections and wiring for both the 12V key line and the 12V key solenoid activation line

1. 1

   Check power supply

   Verify that the 12V key line is receiving power from the vehicle's electrical system.

2. 2

   Check power supply

   Verify that the 12V key solenoid activation line is receiving power from the vehicle's electrical system.

3. 3

   Inspect connections

   Examine the connections and wiring for both the 12V key line and the 12V key solenoid activation line for damage, corrosion, or loose contacts.