A6 Sedan V6-2.8L (ATQ) (2000)
/Page-3198001.png)
Throttle Valve Control Module: Service and Repair
Throttle Valve Control Module, Adapting
The adaptation teaches the Engine Control Module (ECM) various positions of the throttle valve when the ignition is on and the engine is stopped. These
positions are stored in the control module The return communication regarding the position of the throttle valve occurs via the two angle sensors for
throttle drive.
An adaptation must always be performed when the throttle valve control module -J338- or the Engine Control Module (ECM) are removed and installed
(or replaced) or if voltage supply to the Engine Control Module (ECM) is interrupted.
The learning process (adaptation) occurs:
-
automatically if the ignition is switched on for at least 10 seconds without operating starter and accelerator pedal and the Engine Control Module
(ECM) recognizes "adaptation required". (There will be no notification of whether adaptation was successful or not however). Adaptation required
is recognized if stored voltage values from the angle sensors do not match actual measured voltage values within a certain tolerance range.
-
via initiation of basic setting (function 04) display group 060 with ignition on.
NOTE: Engine will not start during automatic adaptation.
Special Tools and Equipment
-
VAS5051 with VAG5051/1
or
-
VAG1551 with VAG1551/3B
Requirements
-
No DTCs in DTC memory, check DTC memory.
-
Engine not running, ignition switched on.
-
Accelerator pedal not depressed.
-
Coolant temperature 10 to 95 °C.
-
Intake air temperature 10 to 90 °C.
-
Supply voltage for ECM larger than 12.7 V; checking.
Procedure
-
Connect VAS5051 tester or VAG1551 scan tool and select the control module for engine electronics using "address word" 01.
Ignition must remain switched on for this.
When indicated on display:
Rapid data transfer
HELP
Select function XX
-
Press buttons -0- and -4- to select "Initiate basic setting" and press -Q- button to confirm input.
When indicated on display:
Basic Setting
Q
