John Deere 000641.31: Variable Geometry Turbo Supply Voltage Fault

The fault code indicates an issue with the supply voltage related to the Variable Geometry Turbo. This may result in improper operation of the component identified by this code.

1. 1

   The power supply to the Variable Geometry Turbo

2. 2

   Wiring and connections related to the Variable Geometry Turbo

3. 3

   The integrity of the circuit supplying voltage to the Variable Geometry Turbo

1. 1

   Inspect

   Inspect the power supply and wiring for the Variable Geometry Turbo for damage, corrosion, or loose connections.

2. 2

   Test

   Test the voltage at the Variable Geometry Turbo to ensure it meets the specifications outlined in the service manual.

3. 3

   Repair or Replace

   Repair or replace any damaged components or wiring as necessary.