P0685 Control module power relay control circuit open
- System
- Powertrain - engine and transmission
This is a standard code. It means the same thing on every make of vehicle.
What OBD2 FaultFinder shows for P06xx codes
The Full scan's Vehicle identity section reads the VIN, Calibration and Verification number (CVN) straight from the control module, along with the Protocol and Adapter in use, and saves them with the scan. The Trouble Codes screen shows the CHECK ENGINE lamp state the computer reports, and the Dashboard has a System voltage gauge. The Adapter traffic screen shows every request and reply on the wire.