2.2.148. SPN 3361, FMI 14, DEF dosing valve: Current abnormal behaviourΒΆ

Description

The EEM monitoring system has detected abnormal behavior on the DEF dosing valve current.

Possible causes are:

  • The DEF dosing valve wiring is defective.
  • The DEF dosing valve is defective.

Reaction in EEM

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

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

Solution

First save the error log and then do the procedure that follows:

  • Examine the DEF dosing valve wiring, the connectors and the contact surfaces of the connector pins (possible oxidation). (see Dosing module)
  • Test the operation with another dosing valve to see if the valve is defective.