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.


J217_8N_37_02E_1_1202_21_Ersetzen.htm
J217_8N_37_02E_1_1202_21_MWB_lesen.htm
J217_8N_37_02E_1_1202_21_Version_abfragen.htm
J217_8N_37_02E_3_0403_21_codieren.htm
J217_8N_37_02E_4_0403_21_codieren.htm
J217_8N_37_09G_1_0302_21_MWB_lesen.htm
J217_8N_37_09G_1_0702_21_Einbauort.htm
J217_8N_37_09G_1_0802_21_Pinbelegung.htm
J217_8N_37_09G_2_0302_21_SG_Version.htm
J217_8N_37_09G_3_0303_21_codieren.htm
J217_8N_37_09G_4_0303_21_codieren.htm

In the Audi TT 1999> the automatic gearbox control unit -J217 is located in the middle of the plenum chamber next to the windscreen wiper motor.

 

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