2.2.366. SPN 5451, FMI 19, WG Actuator 1: Communication error (ERROR 7)ΒΆ

Description

The engine ECU could not receive the wastegate control message from the CAN bus.

Possible causes are:

  • The wastegate actuator wiring is defective.
  • The wastegate actuator is defective.
  • The CAN bus is defective.

Reaction in EEM

The FC is stored and the warning lamp is activated. Engine power is reduced (Degradation Level 1). The CAN message indicates an active fault.

Solution

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

  • Check the wastegate actuator wiring, the connectors and the contact surfaces of the connector pins (possible oxidation).
  • Check the operation with another wastegate actuator to see if the actuator is defective.
  • Check the CAN bus operation.