New Holland 3709 – ENGINE: Lambda Sensor: Open Circuit at the Lambda Sensor Virtual Ground Pin

The fault code indicates an open circuit at the Lambda Sensor Virtual Ground Pin. This issue affects the proper functioning of the Lambda Sensor, which is critical for monitoring the air-fuel mixture in the engine.

1. 1

   Lambda Sensor Virtual Ground Pin

2. 2

   Wiring connected to the Lambda Sensor Virtual Ground Pin

3. 3

   Connection integrity at the Lambda Sensor Virtual Ground Pin

1. 1

   Inspect

   Inspect the Lambda Sensor Virtual Ground Pin for signs of damage, corrosion, or disconnection.

2. 2

   Check

   Check the wiring connected to the Lambda Sensor Virtual Ground Pin for breaks, fraying, or poor connections.

3. 3

   Test

   Test the continuity of the circuit at the Lambda Sensor Virtual Ground Pin using a multimeter.

4. 4

   Secure

   Ensure that all connections at the Lambda Sensor Virtual Ground Pin are secure and properly seated.