John Deere 001761.18: DEF Tank Fluid Low (ECU)

The system has detected a low level of DEF (Diesel Exhaust Fluid) in the tank, as reported by the ECU. This condition may affect emissions control and engine performance.

1. 1

   DEF Tank Level

2. 2

   DEF Tank Sensor

3. 3

   DEF Tank Fluid Supply Line

1. 1

   Check

   The level of DEF fluid in the tank to confirm it is below the required level.

2. 2

   Refill

   Refill the DEF tank with the correct type and amount of fluid as specified in the service manual.

3. 3

   Inspect

   Inspect the DEF tank sensor and supply line for damage, blockage, or leaks.