New Holland 3386 – New Holland Engine: Increase Fan Speed Driver Circuit Open or Short to Ground

The fault code indicates an issue with the increase fan speed driver circuit, specifically an open circuit or a short to ground. This can prevent the fan from operating correctly or cause improper control of its speed.

1. 1

   The wiring associated with the increase fan speed driver circuit

2. 2

   Connections and terminals related to the increase fan speed driver circuit

3. 3

   The component identified by this code for signs of damage or wear

1. 1

   Inspect

   Inspect the wiring and connections of the increase fan speed driver circuit for any visible damage, corrosion, or disconnection.

2. 2

   Test

   Test the circuit for continuity and resistance using a multimeter, following the service manual procedures.

3. 3

   Replace

   If damage is found, replace the affected wiring or component as needed.