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_8E_37_01J_1_0202_21.htm
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
J217_8E_37_01J_3_0102_21.htm
J217_8E_37_01V_1_0601_21_MWB_lesen.htm
J217_8E_37_____1_1000.htm
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
J217_8E_38_01V_1_0102_21.htm
J217_8E_38_01V_1_0303_21_codieren.htm
J217_8E_38_01V_2_0303_21_codieren.htm
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

Reading measured value block

 

Audi A4 2001> - Automatic gearbox 09L

Audi A4 Cabriolet 2003> - Automatic gearbox 09L

 

The following measured value blocks can be displayed:

 

Display group 001:

Display zone 1: Engine speed

approx. 0 to 8160 rpm

Display zone 2: Gearbox input speed -G182

approx. 0 to 8160 rpm

Display zone 3: Gearbox output speed -G195

1st gear: approx. 0 to 2000 rpm;

2nd gear: approx. 0 to 3500 rpm;

3rd gear: approx. 0 to 5400 rpm;

4th gear: approx. 0 to 7200 rpm;

5th gear: approx. 0 to 8160 rpm;

6th gear: approx. 0 to 8160 rpm;

R: approx. 0 to 2400 rpm

Display zone 4: Engaged gear

1, 2, 3, 4, 5, 6, 1m, R

 

Display group 002:

Display zone 1: Current drive program

Readout: 1 to 45

For more details refer to the Specifications document

Display zone 2: Accelerator pedal value

0 to 100%;

With kickdown: 100%

Display zone 3: Gearbox output speed -G195

1st gear: approx. 0 to 2000 rpm;

2nd gear: approx. 0 to 3500 rpm;

3rd gear: approx. 0 to 5400 rpm;

4th gear: approx. 0 to 7200 rpm;

5th gear: approx. 0 to 8160 rpm;

6th gear: approx. 0 to 8160 rpm;

R: approx. 0 to 2400 rpm

Display zone 4: Engaged gear

1, 2, 3, 4, 5, 6, 1m, R

 

Display group 003:

Display zone 1: Brake light switch

Pressed: Brake;

unpressed: No readout

Display zone 2: Selector lever lock solenoid -N110

Brake pressed: PN inactive;

Brake unpressed: PN active

KNote

If a complaint is submitted that the selector lever lock solenoid -N110 is alternately locking and unlocking the selector lever in the P and N position (shifting of solenoid is audible at selector lever, solenoid clicks) without the brake pedal being pressed, the fuse (dash panel, left) for terminal 15, automatic gearbox, is defective.

- In case of a fault check the fuse and the wiring and connectors from the fuse to the connector on the gearbox

Display zone 3: Vehicle speed

0 to xxx km/h

Display zone 4: Voltage supply to solenoid and pressure control valves

0 to 25.0 V

 

Display group 004:

Display zone 1: Gearbox oil temperature sender -G93

-40 to 155 C

Display zone 2: Selector lever position

P;

Z1 (between P and R);

R;

Z1 (between R and N);

N;

Z2 (between N and D);

D;

Z3 (between D and S);

S

Display zone 3: Settings, multi-function switch -F125

P = 0010,

Z1 (between P and R) = 0011,

R = 0001,

Z1 (between R and N) = 0101,

N = 0100,

Z2 (between N and D) = 1100,

D = 1110,

Z3 (between D and S) = 1111,

S = 1101

Display zone 4: OBDII info

xxx1 = Engine start detected;

xx1x = Warm-up;

x1xx = Drive cycle;

1xxx = MIL lamp activated

 

Display group 005:

Display zone 1: Solenoid valve 1 -N88

R, 1st 2nd 3rd gear: off (0)

4. 5. 6. gear on (1)

Display zone 2: Pressure control valve 1 -N215, control current (clutch A)

0 to 2040 mA

Display zone 3: Pressure control valve 2 -N216, control current (clutch B)

0 to 2040 mA

Display zone 4: Engaged gear

1, 2, 3, 4, 5, 6, 1m, R

 

Display group 006:

Display zone 1: Pressure control valve 3 -N217, control current (brake C)

0 to 2040 mA

Display zone 2: Pressure control valve 4 -N218, control current (brake D or clutch E)

0 to 2040 mA

Display zone 3: Pressure control valve 5 -N233, control current (system pressure)

0 to 2040 mA

Display zone 4: Pressure control valve 6 -N371, control current (converter clutch)

0 to 2040 mA

 

Display group 007:

Display zone 1: Gearbox oil temperature sender -G93

-40 to 155C

Display zone 2: Pressure control valve 6 -N371, control current (converter clutch)

0 to 2040 mA

Display zone 3: Torque converter clutch status

TCC open;

TCC control;

TCC closed

Display zone 4: Lock-up clutch slip

xxx rpm

 

Display group 008:

Display zone 1: Kickdown switch

Pressed: Kickdown;

unpressed: No readout

Display zone 2: Accelerator pedal value

0 to 100%;

With kickdown: 100%

Display zone 3: Overrun/acceleration

Overrun: Driving downhill or decelerating (engine braking);

Acceleration: Normal driving

Display zone 4: Substrate temperature, temperature of electronics in control unit

-40 to 155C

 

Display group 009:

Display zone 1: Engine torque

Current engine torque calculated by engine is displayed, xxx Nm

Display zone 2: Engine speed

approx. 0 to 8160 rpm

Display zone 3: Accelerator pedal value

0 to 100%; on kickdown: 100%

Display zone 4: DSP code, current shift program

1 = Gear selection as per drive program

8 = Shift position P

10 = Shift program low friction coefficient detection

12 = Spontaneous vehicle deceleration SVF

13 = TCS mode

15 = Tiptronic mode

16 = CCS (ACC) mode

17 = Hot mode

18 = Warm-up program

20 = Spontaneous downshift

26 = Engage gear

 

Display group 010:

Display zone 1: Converter gain

0.00 to 2.55

Display zone 2: Engine speed

approx. 0 to 8160 rpm

Display zone 3: Engaged gear

1, 2, 3, 4, 5, 6, 1m, R

Display zone 4: Actual acceleration

xxx m/s2

 

Display group 011:

Display zone 1: Selector lever position

P;

Z1 (between P and R);

R;

Z1 (between R and N);

N;

Z2 (between N and D);

D;

Z3 (between D and S);

S

Display zone 2: Tiptronic switch -F189, recognition

Pressed: M-shift;

unpressed: No readout

Display zone 3: Up/Down button

Pressed: Up button/Down button;

unpressed: No readout

Display zone 4: Tiptronic switch -F189 and Tiptronic buttons or shift paddles on steering wheel

xxxx0: Signal of Tiptronic Down button in selector lever

xxx0x: Signal from Tiptronic recognition switch in selector lever

xx0xx: Signal of Tiptronic Up button in selector lever

x1xxx: Signal of Tiptronic Up button on steering wheel

1xxxx: Signal of Tiptronic Down button on steering wheel

 

- in selector lever position P: 111

- in selector lever position P and Tiptronic button on steering wheel + or shift paddle + pressed: 1111

- in selector lever position P and Tiptronic button on steering wheel - or shift paddle - pressed: 10111

- in selector lever position R: 011

- in selector lever position R and Tiptronic button on steering wheel + or shift paddle + pressed: 1011

- in selector lever position R and Tiptronic button on steering wheel - or shift paddle - pressed: 10011

- in selector lever position N: 110

- in selector lever position N and Tiptronic button on steering wheel + or shift paddle + pressed: 1110

- in selector lever position N and Tiptronic button on steering wheel - or shift paddle - pressed: 10110

 

- in selector lever position D: alternating readout between 0 and 111 (i.e. the 25 Hz frequency signal of the Tiptronic sensors in the control unit is detected)

 

- in selector lever position D/S and Tiptronic button on steering wheel + or shift paddle + pressed: alternating readout between 1000 and 1111 (i.e. the 25 Hz frequency signal of the Tiptronic sensors in the control unit is detected)

 

- in selector lever position D/S and Tiptronic button on steering wheel - or shift paddle - pressed: alternating readout between 10000 and 10111 (i.e. the 25 Hz frequency signal of the Tiptronic sensors in the control unit is detected)

 

- selector lever in Tiptronic gate: alternating readout between 0 and 101 (i.e. Up and Down buttons not pressed and still delivering the 25 Hz signal to the control unit (1x1/0x0), Tiptronic recognition switch connected to earth (x0x))

 

- selector lever in Tiptronic gate and Tiptronic button on steering wheel + or shift paddle + pressed: alternating readout between 1000 and 1101 (i.e. Up button on steering wheel pressed (1xxx), Up and Down buttons in selector lever not pressed and still delivering the 25 Hz signal to the control unit (x1x1/x0x0), Tiptronic recognition switch connected to earth (xx0x))

 

- selector lever in Tiptronic gate and Tiptronic button on steering wheel - or shift paddle - pressed: alternating readout between 10000 and 10101 (i.e. Down button on steering wheel pressed (1xxxx), Up and Down buttons in selector lever not pressed and still delivering the 25 Hz signal to the control unit (xx1x1/xx0x0), Tiptronic recognition switch connected to earth (xx0x))

 

- Selector lever in position '+' pressed: alternating readout between 1 and 0 (i.e. Up button on selector lever pressed and connected to earth (0xx), Tiptronic recognition switch connected to earth (x0x), Down button not pressed and still delivering the 25 Hz signal to the control unit (xx1/xx0))

 

- Selector lever in position '-' pressed: alternating readout between 100 and 0 (i.e. Down button on selector lever pressed and connected to earth (xx0), Tiptronic recognition switch connected to earth (x0x), Up button not pressed and still delivering the 25 Hz signal to the control unit (1xx/0xx))

 

Display group 012:

Display zone 1: Standardised torque

(standardised torque in normal circumstances over rated torque of engine)

Display zone 2: Received engine variant

(depending on engine coding,

when the engine control unit is replaced the same readout must reappear at this point, if not check engine coding)

Display zone 3: Received engine gearbox variant

(in the engine the 09L gearbox must be coded, check engine coding)

Display zone 4: Received CAN data level

(CAN data level must be 38 or higher,

if the data status is incorrect, the fault entry: 18263 Drive train data bus, software status monitoring is made)

 

Display group 013:

Display zone 1: Selector lever position

(P;

Z1 (between P and R);

R;

Z1 (between R and N);

N;

Z2 (between N and D);

D;

Z3 (between D and S);

S)

Display zone 2: Starter inhibit signal (P/N signal)

Selector lever at R, D, S and ignition key at engine start position: PN inactive

(i.e. no release to start engine to engine control unit)

Selector lever in position P, N: PN active

(i.e. release to start engine to engine control unit)

Display zone 3: Settings, multi-function switch -F125

P = 0010,

Z1 (between P and R) = 0011,

R = 0001,

Z1 (between R and N) = 0101,

N = 0100,

Z2 (between N and D) = 1100,

D = 1110,

Z3 (between D and S) = 1111,

S = 1101

Display zone 4: Supply voltage terminal 30

0 to 25.0 V;

less than 9V: No more shifts are executed by the control unit;

less than 7V: the solenoid and pressure control valves are electrically disabled, i.e. gearbox in emergency running mode;

less than 6.5V: the control unit is de-energised, i.e. gearbox in emergency running mode

 

Display group 014:

Display zone 1: Gearbox oil temperature sender -G93

-40 to 155 C

Display zone 2: Substrate temperature, temperature of electronics in control unit

-40 to 155C

Display zone 3: Temperature protection measure, hot mode

0 = inactive;

1 = active

Display zone 4: Maximum permissible engine torque

The displayed torque value is sent by the gearbox control unit to the engine control unit.

If the value is less than the nominal torque of the engine, that signifies a limitation of the engine torque by the gearbox (e.g. by excessively long periods of gearbox high temperatures)

 

Display group 015:

Display zone 1: Signal for reversing light

Readout: O, Reversing light off in selector lever position P, N, D, S

Readout: X, Reversing light on in selector lever position R

Display zone 2: Vacant

Display zone 3: Vacant

Display zone 4: Gearbox oil temperature sender -G93

-40 to 155 C

 

Display group 016:

Display zone 1: Accelerator pedal value

0 to 100%; on kickdown: 100%

Display zone 2: Vehicle speed

0 to xxx km/h

Display zone 3: Current drive program

Readout: 1 to 45

For more details refer to the Specifications document

Display zone 4: DSP code, current shift program

1 = Gear selection as per drive program

8 = Shift position P

10 = Shift program low friction coefficient detection

12 = Spontaneous vehicle deceleration SVF

13 = TCS mode

15 = Tiptronic mode

16 = CCS (ACC) mode

17 = Hot mode

18 = Warm-up program

20 = Spontaneous downshift

26 = Engage gear

 

Display group 017:

Display zone 1: Control unit run-on

J Run-on active: Run-on

J Run-on not active: ----------

Display zone 2: Supply voltage terminal 30

Display zone 3: Supply voltage terminal 15

Display zone 4: CAN information terminal 15

J Ignition on: Term.15 ON

J Ignition off: Term.15 OFF

J If the CAN information from the entry and start authorisation control unit is missing: ----------

 

Display group 060:

Display zone 1: Hardware version and variant

Display zone 2. Additional hardware identifier

A = Application;

S = Production

Display zone 3: Maximum substrate temperature, temperature of electronics in control unit

xxx C

Display zone 4: Vacant

 

Display group 062:

Display zone 1: Adaptive mode

Display zone 2: Current drive program

Readout: 1 to 45

For more details refer to the Specifications document

Display zone 3: Motion resistance index

Display zone 4: Current driver type counter

 

Display group 063:

Display zone 1: ID of active upshift lock

3 = FastOff

6 = Cornering

7 = Program change function

8 = Gear position P

14 = CDS mode

15 = Tiptronic mode

20 = Spontaneous downshift

Display zone 2: ID of active downshift lock

7 = Program change function

14 = CDS mode

15 = Tiptronic mode

24 = Enhanced downshift prevention

Display zone 3: Vacant

Display zone 4: Vacant

 

Display group 080:

Display zone 1: Manufacturer works code and identifier / Date of manufacture / Manufacturer modification status / Manufacturer test status no. / Manufacturer serial no.

xxx-xxx / dd.mm.yy / xxxxxxxx / xxxx / xxxx

Display zone 2: Vacant

Display zone 3: Vacant

Display zone 4: Vacant

 

Display group 081:

Display zone 1: Chassis number / Serial number / Type test number

WAUZZZxxxxxxxxxxx / xxxxxxxxxxxxxx / xxxxxxx

Display zone 2: Vacant

Display zone 3: Vacant

Display zone 4: Vacant

 

Display group 082:

Display zone 1: Flash tool code / Flash date / Module Hardware / Sort key Hardware / Module Software / Sort key Software

xxxxxxxxxxxxx / dd.mm.yy / xxx / xxxx / xxx / xxxx

Display zone 2: Vacant

Display zone 3: Vacant

Display zone 4: Vacant

 

Display group 125:

Display zone 1: CAN messages engine

CAN OK: Motor1; CAN n.OK: Motor0

Display zone 2: CAN messages ABS/ESP

CAN OK: ABS1; CAN n.OK: ABS0

Display zone 3: CAN messages steering angle sender

CAN OK: Steer.ang.1; CAN n.OK: Steer.ang.0

Display zone 4: CAN messages dash panel insert

CAN OK: Combi1; CAN n.OK: Combi0

 

Display group 126:

Display zone 1: CAN messages cruise control system

CAN OK: Distance1; CAN n.OK: Distance0

Display zone 2: Vacant

Display zone 3: CAN messages steering wheel electronics

CAN OK: Steer.wh.1; CAN n.OK: Steer.wh.0

Display zone 4: Vacant

 

Site news

November 30, 2012
Content update We are starting big site update. We are sorry for bugs and missed content.
We are especially grateful for financial support of our site

User Name
Password
Forgot your password?
Register
.