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.


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J217_8E_37_01J_1_0304_21_TPL20221_Sollwerte.htm
J217_8E_37_01J_1_0304_21_TPL21788_Sollwerte.htm
J217_8E_37_01J_2_1103_21.htm
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J217_8E_37_01V_1_0601_21_MWB_lesen.htm
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J217_8E_37_____1_1101_21.htm
J217_8E_38_01J_1_0303_21_codieren.htm
J217_8E_38_01J_1_0506_21_Pinbelegung.htm
J217_8E_38_01J_2_0303_21_codieren.htm
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J217_8E_38_09L_1_0503_21_MW_lesen.htm
J217_8E_38_09L_1_0503_21_Pinbelegung.htm
J217_8E_38_09L_1_0503_21_RdW_codieren.htm
J217_8E_38_09L_1_0505_21_MW_lesen.htm
J217_8E_38_09L_2_0503_21_MW_lesen.htm
J217_8E_38_09L_2_0503_21_USA_codieren.htm
J217_8E_38_0AN_1_0506_21_MWB_lesen.htm
J217_8E_38_0AN_1_0506_21_RdW_codieren.htm
J217_8E_38_0AN_1_0506_21_USA_codieren.htm
J217_8E_38_____1_0503_21_SG-Version.htm
J217_8E_38_____2_0503_21_erw-SG-Ident.htm
J217_8E_38_____3_0503_21_Softwareversion.htm
J217_8E_38_____4_0503_21_Hardwarenr.htm
J217_8E_38_____5_0503_21_Fahrgestellnr.htm
J217_8E_38_____6_0503_21_Motornr.htm
J217_8E_38_____7_0503_21_Typpruefnr.htm
J217_8E_38_____8_0503_21_Flashstatus.htm
J217_8E_38_____9_0503_21_Lebenslauf.htm

Read measured value block

 

The following measured values are displayed:

 

Output signals:

 

Measured value block 001:

1. Engine speed (min. 0 rpm; max. 8200 rpm)

2. Gearbox input speed -G182 (min. 0 rpm; max. 8200 rpm)

3. Gearbox output speed -G195 (min. 0 rpm; max. 8200 rpm)

4. Engaged gear (1m; 1; 2; 3; 4; 5; R)

 

Measured value block 002:

1. Current program (S0; DS; WL; TT; AS; GR)

2. Throttle valve value/accelerator position (Idling 0...1 %; Full throttle 99...100 %)

3. Gearbox output speed -G195 (min. 0 rpm; max. 8200 rpm)

4. Engaged gear (1m; 1; 2; 3; 4; 5; R)

 

Measured value block 003:  

1. Brake light switch -F (brake)

2. Selector lever lock solenoid -N110 (PN inactive; PN active)

3. Road speed (min. 0 km/h; max. Vmax)

4. Supply voltage term. 15 (min. 10.0 V; max. 16.0 V)

 

Measured value block 004:  

1. ATF temperature (... °C)

2. Selector lever position (multi-function switch -F125) (P; R; N; D; S; Z1; Z2; Z3)

3. Multi-function switch (driving range sensor) -F125

(P: 1000; R: 0100; N: 1110; D: 1011; S: 0111; Z3: 1111; Z2: 1010; Z1: 1100)

4. On-board diagnosis information

 

Measured value block 005:  

1. Solenoid valve 1 -N88 ("0" = inactive; "X" = active)

2. Solenoid valve 2 -N89 ("0" = inactive; "X" = active)

3. Solenoid valve 3 -N90 ("0" = inactive; "X" = active)

4. Engaged gear (1m; 1; 2; 3; 4; 5; R)

 

Measured value block 006:  

1. Specified current of pressure control valve 1 -N215 (... A)

2. Specified current of pressure control valve 2 -N216 (... A)

3. Specified current of pressure control valve 3 -N217 (... A)

4. Ignored

 

Measured value block 007:  

1. ATF temperature (... °C)

2. Specified current of pressure control valve 4 -N218 (... A)

3. Torque converter clutch

4. Torque converter slip speed (... rpm)

 

Measured value block 008:  

1. Kickdown switch (Kick Down)

2. Throttle valve value/accelerator position (Idling 0...1 %; Full throttle 99...100 %)

3. Thrust-pull signal

4. Ignored

 

Measured value block 009:  

1. Actual engine torque (... Nm)

2. Engine speed (min. 0 rpm; max. 8200 rpm)

3. Throttle valve value/accelerator position (Idling 0..0.1%; Full throttle 99...100 %)

4. Ignored

 

Measured value block 010:  

1. Torque increase in converter

2. Engine speed (min. 0 rpm; max. 8200 rpm)

3. Engaged gear (1m; 1; 2; 3; 4; 5; R)

4. Ignored

 

Measured value block 011:  

1. Selector lever position (multi-function switch -F125) (P; R; N; D; S; Z1; Z2; Z3)

2. Tiptronic recognition switch -F189 (M-switch)

3. Tiptronic switch -F189 (upshift) (upshift; downshift)

4. Ignored

 

Measured value block 012:  

1. Mode of driving, load

2. Driving dynamics index

3. Motion resistance index

4. Driving style factor

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