![[-]](https://vxoc.org.uk/forum/images/dark1.8/collapse.png "[-]")
3:rd-Jul-2017, 07:43:27
U codes are lost comms error codes and are normally ignored unless there is an accompanying fault code with it.
U0121-00 Lost Communication With Electronic Brake Control Module
U0140-00 Lost Communication With Body Control Module This would explain your missing mileage.
The code 68 is a service power steering.
What I would suggest you do is pull the negative off the battery for 30-60mins let all systems fully shut down then unplug all connections on the BCM and re-plug them in and reconnect the battery, once you've done that see what happens over a week or so.
U0121-00 Lost Communication With Electronic Brake Control Module
U0140-00 Lost Communication With Body Control Module This would explain your missing mileage.
The code 68 is a service power steering.
What I would suggest you do is pull the negative off the battery for 30-60mins let all systems fully shut down then unplug all connections on the BCM and re-plug them in and reconnect the battery, once you've done that see what happens over a week or so.
![[Image: Rusty-2_zpsuzrvgsp6.GIF]](https://www.vxoc.org.uk/Images/rusty/post%20images/Rusty-2_zpsuzrvgsp6.GIF)
Astra-J 2.0 CDTI S/S
Retrofitted AFL, TPMS, Navi950, BT, DAB, Rear Camera, Infinity sound system, Towbar, Flexfloor & more.
I can do programming and retrofits using genuine GM MDI and Dealer software.
