The engine must be accelerated above 300 rpm, the accelerator pedal must be fully pressed.
Finally, let the engine idle for at least two minutes.
Do not turn off the engine, as the memory will be reset when restarting.
If the engine does not work due to a malfunction, you need to turn the starter for about six seconds. Do not turn off the ignition.
Remove the gearshift lever boot. There is a memory interrogation plug underneath it.
Connect the LED test lead with the probes to the two outer contacts on the plug at the top.
Connect a short piece of wire to the contact at the bottom.
To display fault codes, connect the free end of this wire to the contact at the bottom right for at least two seconds.
The LED will light up for a long time at first, signaling the start of the indication. Then there will be four flash signals with long pauses.
This signal in the form of flashes is a fault code.
The signal will be repeated after a certain period of time.
If the signal is a 4-4-4-4 code, then no fault has been detected.
If the signal indicates a malfunction, the memory poll should be repeated. There may be another malfunction in the system.
If there is another fault, it will be indicated.
All this will be repeated until the code 4-4-4-4 appears (the fault is not detected).
Finally, with the voltage tester still connected, you need to connect the lower contacts to each other again for four seconds.
Disconnect the connection, the LED should light up for a long time.
To check, connect the contacts again for four seconds.
The code 4-4-4-4 should appear.
The memory of some modifications is reset automatically the next time the engine is started.
Perform a test drive and interrogate the memory device again.
The original article is posted on the resource: AUDImanual.ru