New Holland 3708: Lambda Sensor Pump Current Pin Open Circuit

The fault code indicates an open circuit at the lambda sensor pump current pin, which is associated with the lambda sensor. This issue affects the detection of lambda = 1, which is related to the air-fuel ratio measurement.

1. 1

   The wiring and connections at the lambda sensor pump current pin

2. 2

   The integrity of the circuit leading to the lambda sensor pump current pin

3. 3

   The component identified by this code

1. 1

   Inspect

   Inspect the wiring and connections at the lambda sensor pump current pin for damage, corrosion, or disconnection.

2. 2

   Test

   Test the circuit for continuity and proper electrical connection to the lambda sensor pump current pin.

3. 3

   Repair or Replace

   Repair or replace the affected circuit or the component identified by this code if an open circuit is confirmed.