This is a guide of how to use Launch X431 V tablet to perform the engine ECU long coding for a 2014 Audi A5. It may help when your car was diagnosed with P161200 engine control module (ECM) – incorrect coding error.
The Audi long coding are all zero.
Go to main menu: Online function >> Online coding
The program is about to download a file, please wait until 2/2…
Single system mode >> Engine control module 1
Select the possible code 03, press “OK”.
Processing, please wait…
The coding has been successfully carried out, press “OK”.
Do you need to clear the fault code and read the fault code again? Yes.
Fault codes cleared, read DTC? Yes.
Go back to main menu, press “Health Report”.
Wait until system scanning finished.
Clear fault memory completed, press “OK”.
Engine control module is normal now, the P161200 coding error was solved!