Perform adaptation of the throttle valve control unit — AUDI

AJL
The idle stabilisation requires the engine control unit to know the stop positions of the throttle valve positioner (V60) and the potentiometer characteristics of the throttle valve positioner sensor (G88) and throttle valve potentiometer (G69).

The learning process (adaptation) is necessary if:

The throttle valve control unit was replaced.
The engine control unit was renewed.

The learning process (adaptation process) is performed:

Automatically if the ignition is switched on once for at least 6 seconds without actuating the starter or the accelerator pedal.
By initiating the basic setting (function 04) Display Group 98 with the engine stopped.

Test conditions

No fault stored in fault memory
=> Page
01-7
, Interrogate fault memory.

Connect fault reader V.A.G 1551 (V.A.G 1552) and select the engine electronics control unit with the "Address word" 01. The ignition must be switched on (Connecting fault reader and selecting engine electronics control unit => Page
01-3
.)

Rapid data transfer
HELP
Select function
XX
Display readout:

Press keys 0 and 4 for the function "Introduction of basic setting" and confirm entry with Q key.

Default setting
HELP
Enter display group number
XXX
Display readout:

Press keys 0, 9 and 8 for "Display group number 98" and confirm entry with the Q key.

System in basic setting
98
⇒
x.xxx V
x.xxx V
Idle ADP. running
Display readout:

When the Q key is pressed, the throttle valve actuator moves to min, max. and several intermediate positions. The control unit records the voltage reading for each position in its non-volatile memory. The throttle valve then remains in the start position for a brief period before closing.

System in basic setting
98
⇒
x.xxx V
x.xxx V
Idle ADP. OK
Display readout:

Adjustment of the throttle valve control unit was carried out successfully.

Note:

If the adaptation is interrupted by the control unit, the reason could be one of the following:

The throttle valve cannot close completely (e.g. dirt).
Throttle cable incorrectly adjusted.
The battery voltage is too low.
Throttle valve control unit or wiring is defective.
Engine was started or accelerator was actuated during the adaptation process.

After an interruption, the fault "Basic setting not completed, fault in basic setting" is stored in the fault memory. The next time the ignition is switched on, the basic setting is automatically performed again.

End engine basic setting process by pressing the ⇒ key.
Press keys 0 and 6 for the function "End data transfer" and confirm entry with the Q key.