New Holland 3355 – Engine: Main Relay 4 (Engine Brake Exhaust Valve) - Short to Battery or Open Load

The Main Relay 4, associated with the Engine Brake Exhaust Valve, is experiencing a short to battery or an open load condition. This fault indicates an electrical issue within the circuit connected to the relay.

1. 1

   Main Relay 4

2. 2

   Engine Brake Exhaust Valve

3. 3

   Wiring connected to Main Relay 4

4. 4

   Connections to Engine Brake Exhaust Valve

1. 1

   Inspect

   Check the physical condition of Main Relay 4 for signs of damage or overheating.

2. 2

   Inspect

   Examine the wiring and connections to Main Relay 4 and the Engine Brake Exhaust Valve for any signs of wear, damage, or poor contact.

3. 3

   Test

   Use a multimeter to test for continuity and resistance in the circuit connected to Main Relay 4 and the Engine Brake Exhaust Valve.

4. 4

   Replace

   If a fault is identified, replace the Main Relay 4 or repair the affected wiring as necessary.