3.2.50. SPN 1188, FMI 2, WG Actuator 1 position deviation (ERROR 3)ΒΆ

Description

The WG 1 actuator difference between the actual and the target shaft position is too high. The error will heal when the difference grows smaller.

Possible causes are:

  • The WG 1 actuator is defective.
  • The WG 1 actuator shaft is twisted or blocked.
  • The CAN bus is defective.

Reaction in EEM

The FC is stored and the warning lamp is activated. 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 1 actuator assembly to detect the defective control shaft.
  • Check the operation with another WG actuator to see if the actuator is defective.

See Electrical Waste Gate for reference.