3.2.434. SPN 5373, FMI 19, WG Actuator 2 communication error (ERROR 7)ΒΆ

Description

The EEM4 monitoring system could not receive the WG 2 control message from the CAN bus.

Possible causes are:

  • The WG 2 actuator wiring is defective.
  • The WG 2 actuator is defective.
  • The CAN bus is defective.

Reaction in EEM

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

Solution

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 WG 2 actuator wiring, the connectors and the contact surfaces of the connector pins (possible oxidation).
  • Check the operation with another WG actuator to see if the actuator is defective.
  • Check the CAN bus operation.