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.


J248_4F_23_BLB_1_0504_21_Grundeinstellung.htm
J248_4F_23_BLB_1_0604_21_MWBLesen.htm
J248_4F_23_BRE_1_0505_21_MWBLesen.htm
J248_4F_23_____1_0604_21_Geberref.htm
J361_4F_24_AUK_1_1003_21.htm
J361_4F_AUK_1_0204_21_MWB.htm
J361_4F_BDW_1_0304_21_MWB.htm
J538_4F_20_AUK_1_0104_21.htm
J544_4F_24_BUH_1_1207_21.htm
J623_4F_23_CANA_1_0608_21_Grundeinstellung.htm
J623_4F_23_CANA_1_0608_21_MWBLesen.htm
J623_4F_24_BAT_1_1003_21.htm
J623_4F_24_BBJ_1_0303_21_Cod.htm
J623_4F_24_BVJ_1_0406_21.htm
J623_4F_BAT_1_1003_21_MWB.htm
J623_4F_BBJ_1_0403_21_MWB.htm
J623_4F_BDX_1_0906_21_MWB.htm
J623_4F_BGS_1_1005_21_MWB.htm
J623_4F_BUH_1_0707_21_MWB.htm
J671_4F_19_BGS_1_0206_21.htm
J671_4F_19_BUH_1_0108_21.htm
J757_4F_24_AUK_1_0104_21.htm

J757 - Current supply relay for engine components

(relay socket 2)

 

- 1 -     Contact 30

 

- 2 -     Contact 87

 

- 3 -     Contact 86

 

- 4 -     Contact 85

 

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November 30, 2012
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