3.2.104. SPN 2791, FMI 0, EGR Valve temperature alertΒΆ

Description

The EGR actuator temperature is too high.

Possible causes are:

  • The EGR actuator is defective.
  • The EGR actuator wiring is defective
  • The EGR actuator water cooling pipes are defective, if assembled.

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 EGR actuator assembly to detect the defective control shaft.
  • Check the EGR actuator wiring, the connectors and the contact surfaces of the connector pins (possible oxidation).
  • Check that the EGR actuator cooling pipes are not squashed or blocked, if assembled.
  • Check the operation with another EGR actuator to see if the actuator is defective.