3.2.305. SPN 520237, FMI 31, Customer fault 1 via digital input

Description

The EEM4 monitoring system has detected a customer fault via the digital input. Check the vehicle manufacturer’s instructions.

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 vehicle manufacturer’s instructions for the troubleshoot.