3.2.302. SPN 520231, FMI 31, PTO input errorΒΆ

Description

The EEM4 controller has detected an invalid PTO cruise controller request. For some reason there are up & down request demands active simultaneously.

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 wiring from the vehicle switches to the EEM4 controller.
  • Check the vehicle PTO cruise up & down switch operation.