2.2.368. SPN 5451, FMI 4, WG Actuator 1 short cut (ERROR 21)ΒΆ

Description

A WG 1 actuator short circuit.

Possible causes are:

  • The WG 1 actuator motor is shorted to ground, battery or across the motor.
  • The WG 1 actuator is defective.

Reaction in EEM

The FC is stored and the warning lamp is activated. The CAN message indicates an 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 1 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.