3.2.343. SPN 520358, FMI 31, Over temperature of device driver of pressure control valveΒΆ

Description

The EEM4 system has detected over temperature of device driver of pressure control valve (PCV).

Possible causes are:

  • The pressure control valve wiring is defective.
  • The pressure control valve is defective

Reaction in EEM

The FC is stored and the warning lamp is activated. The CAN message indicates active fault. The device driver functionalities could be disabled.

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 pressure control valve wiring, the connectors and the contact surfaces of the connector pins (possible oxidation).
  • Check the operation with another pressure control valve to see if the PCV is defective.

See Pressure Control Valve (PCV) sensor for reference.