I was using SDD today (165 v.349) and I changed a few things I wish I hadn't. I noticed that dynamic suspension, ABS & wheel size weren't configured, so I set those, I also changed the max speed. On downloading to the car I now see a lot of faults:

Emergency brake assist not available
EBD fault
DSC not available
ABS fault
Adaptive dynamics fault
E-diff not available

In my fault reader I see a DTC 0f 3002-81 Vehicle Identification number, I believe I have rolled back the changes I made in SDD, but the errors persist, even after I have tried clearing them many times, in my code reader and the routine in SDD. My car is a 2014 XKR.

Any thoughts on what I might have done here?

 

All of those are indicative a weak car battery. Did you have the car on a power supply while using SDD? Check the voltage directly on the battery posts after leaving the car off for 60 minutes. Less than 12.6 Volts, replace the battery.

 

Yes, I had it on a 50A supply throughout, the SDD battery indicator showed green throughout the process. I will disconnect and check the voltage however.

 

Maybe do a Hard Reset as well as check (and resolve) the battery voltage.

 

Battery swapped out for a replacement, charging circuit is fine, voltage is fine, battery support unit connected whilst using SDD.

Checked DTCs in SDD, multiple instances of U3002-81, it appears the VIN has been corrupted somehow, can this be reset? these modules weren't complaining previously.

 

We did this, no change.

 

Can you go back to the previous active session and undo what you did?

 

No, the last session corrupted, it only allows me to start a new one.

 

Max Speed and Vehicle Speed are different, you can only change the actual top end speed with either a hacked SDD or engineering mode. If you have one of those, you're lucky. Wish I did.

 

Any previous session? If not, start a new session and change settings back.

 

I've done that, the problem seems to be that the VIN has become corrupted for some modules.

 

did you swap modules? I don't understand how changing settings would corrupt the VIN.

 

No, I haven't touched any modules.

 

Tried this again today, I was able to revert to a session from Saturday, downloaded the configuration, cleared the codes and the errors have all gone, hopefully all sorted now, no more fiddling for me!