John Deere 004366.18: DEF Tank Temperature Too Low. Heater Solenoid Valve Issue.

The DEF Tank Temperature is below the acceptable range, and there is an issue with the Heater Solenoid Valve. This may affect the proper operation of the DEF system.

1. 1

   Heater Solenoid Valve

2. 2

   DEF Tank Temperature Sensor

3. 3

   the affected circuit

1. 1

   Inspect

   Inspect the Heater Solenoid Valve for signs of damage or blockage.

2. 2

   Test

   Test the functionality of the Heater Solenoid Valve according to the service manual.

3. 3

   Check

   Check the DEF Tank Temperature Sensor for proper operation and connection.