4.2.80. SPN 1761, FMI 18, DEF tank LEVEL LOWΒΆ

Description

The measured tank level indicates LOW level of DEF.

Reaction in EEM

The FC is stored and the warning lamp is activated. The CAN message indicates active fault.

NOTE: The present fault is classified as an emission related fault. Engine power will be reduced after a certain time defined by an authority.

Solution

  • Refill the DEF tank with valid reducing agent (DEF/AdBlue).

First save the error log and then erase it. Restart the ECU after erasing the error log. If the fault occurs again during the next driving cycle, check the following paths:

  • Check the DEF tank level sensor wiring, the connectors and the contact surfaces of the connector pins (possible oxidation).
  • Check the operation with another tank level sensor to see if the sensor is defective.