ECU - Electronic Control Unit

In terminology of VW-group it's any electronic device, which has been carried out some logic function. Sometimes it looks like nonsens - even simple relay can be called ECU.

The coding of Electronic Control Unit used for explain the ECU where it is and what "neighbours" does it have. Very often on modern cars the coding is crossed with adaptation.

Adaptation of the Electronic Control Unit serves to explain to the ECU with whom and how to talk (If we have started to speak allegories) and serves as storehouse of various adjustable parameters. ( part of memory in the Control Unit which can be changed via internal software )

Measured Values Blocks ( MWB ) – various parameters being inbound or calculated. Considering to value of MWB Electronic Control Unit, trying to "control"... Using of MWB allows you ( if you know the basic parameters ) to find out "close to boundary" or temporarily arising ( intermittent, sporadic ) malfunctions and many other useful things at competent use.


Loading mode is activated/deactivated via the diagnostic interface.


Function description:

The vehicle suspension is set to LIFT mode. As soon as the suspension system is in Lift mode the level can no longer be changed on the MMI (control disabled).


Activation via self-diagnosis:

J Address word 34 (adaptive suspension)

J Function 16 Access authorisation

J Key-in code 10273 and confirm with Q key


Deactivation via self-diagnosis:

Self-diagnosis: Address word 34 (adaptive suspension)

J Function 16 Access authorisation

J Key-in code 41172 and confirm with Q key


Activation via Guided Fault Finding/guided functions:

J Running gear

J Adaptive suspension

J Self-diagnosis-compatible systems

J +34 - Adaptive suspension control unit

J +J197 Functions, adaptive suspension control unit.

J J197 Activate/deactivate loading mode.  


YZ Loading mode is quit when a defined distance of 50 km is exceeded or when a vehicle speed of 120 km/h is exceeded.


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