Cummins ISB6.7 CM2350 (2013-17) Fault Code: 5685 PID: SPN: 6810 FMI: 31 Hybrid System OBD Related DTC Status- Condition Exists. The Hybrid system has an OBD related fault code and has requested the ECM light the MIL lamp.

Cummins ISB6.7 CM2350 (2013-17) Fault Code: 5685 PID: SPN: 6810 FMI: 31 Hybrid System OBD Related DTC Status- Condition Exists. The Hybrid system has an OBD related fault code and has requested the ECM light the MIL lamp.

Circuit Description
The system controller is the central control for the hybrid system. It handles hybrid system operations. It communicates to the engine electronic control module (ECM) via a J1939 data link connection.

Component Location
The location of the hybrid system controller varies by application and OEM. The controller will typically be mounted to the vehicle frame or suitable rigid bracket using capscrews. Refer to the OEM service manual for a more detailed component location description.

Conditions for Running the Diagnostics
The diagnostic runs continuously when the keyswitch in in the ON position.

Conditions for Setting the Fault Codes
This fault code is set when the Hybrid system controller requests the malfunction indicator lamp (MIL) be illuminated.

Action Taken When the Fault Code is Active
The ECM illuminates the amber CHECK ENGINE lamp and/or the Malfunction Indicator Lamp (MIL) immediately when the diagnostic runs and fails.

Conditions for Clearing the Fault Code
1)To validate the repair, perform a key cycle, start the engine and let it idle for 1 minute.
2)The fault code status displayed by INSITE? electronic service tool will change to INACTIVE immediately after the diagnostic runs and passes.
3)The Reset All Faults command in INSITE? electronic service tool can be used to clear active and inactive faults.

Shop Talk
This is an information only fault code, indicating that the Hybrid system controller detected an OBD related fault and has requested the malfunction indicator lamp (MIL) be illuminated. Refer to the OEM service manual.

Reference the appropriate OEM wiring diagram when troubleshooting circuits that utilize wiring supplied by the OEM