3.2.342. SPN 520356, FMI 4, SHORT CIRCUIT to ground in the high side of the pressure control valveΒΆ

Description

The EEM4 monitoring system has detected a short circuit on the pressure control valve high side.

Possible causes are:

  • The solenoid valve wiring is defective. (Shorted to ground.)
  • The solenoid valve 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 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 valve is defective.

See Pressure Control Valve (PCV) sensor for reference.