This is using Launch X431 PAD V to solve fault code 2806 for a Mercedes Benz C200(W204) after new TCM module replacement. The process requires to perform teach-In of drive authorization system & teach-in selection range sensor. Can be done on X431 PRO3 V4.0, X431 PRO V4.0, X431 PAD VII as well.
Note: It only works with un-authorization or new control module.
After TCM programming was done, use X431 PAD V to do a full diagnose.
There’s still a fault code:
2806 – component “Y3/8s1(selection range sensor)” was not taught in.
How to do “Teach-In of drive authorization system”?
Go to
Special function >> Teach-in processes >> Teach-In of drive authorization system >> OK >> OK >> Yes
Do you want to deactivate the transport protection? Yes
The control unit lock of control unit “ETC(EGS)” is released.
Do you want to personalize control unit “ETC(EGS)”? Yes
Do you want to activate control unit “ETC(EGS)”?
Yes >> Yes
Control unit “ETC(EGS)” is firmly assigned.
To the vehicle and can no longer be personalized.
Return back to double check.
As we can see, the actual values all have changed from NO to YES.
How to do “Teach-in selection range sensor”?
Special function >> Teach-in processes >> Teach-in selection range sensor >> OK
Engage gear range “P, R, N, D” in turn as prompts.
The teach-in process was completed successfully.
The fault code has gone, done!
Launch X431 Tool PAD V can solve trouble code 2806 for Mercedes W204 successfully.
