00811
From Ross-Tech Wiki
00811 - System Not Ready for Interrogation (Ross-Tech: Check Fault Codes Later)
Possible Causes
- The controller in the vehicle (transmission controller for example) has not checked for fault codes so it cannot state definitively whether any are present. This typically shows up after a request to clear faults has been sent.
Possible Solutions
- Exit out of the controller and check for fault codes again