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_4L_37_09D_1_0103_21_Grundeinstellung.htm
J217_4L_37_09D_1_1105_21_MWB_lesen.htm
J217_4L_37_09D_6_1205_21_codierung.htm
J217_4L_37_09D_7_1205_21_ersetzen.htm
J217_4L_37_09D_8_1205_21_PINbelegung.htm
J217_4L_38_09L_1_0905_21.htm
J217_4L_38_0AT_1_0106_21_ersetzen.htm
J217_4L_38_0AT_1_0106_21_MW_lesen.htm
J217_4L_38_0AT_1_1205_21_Pinbelegung.htm
J217_4L_38_0AT_2_0106_21_codieren.htm
J217_4L_38_____1_0206_21_Sicherung_Get02.htm
J587_4L_38_09D_4_1205_21_PIN.htm

Reading measured value block

 

Audi Q7 2007> - Automatic gearbox 09D

 

The following measured value blocks can be displayed:

Display group 001:       

Display zone 1: Engine speed

(0 to 7650 rpm; in case of fault: Error)

Display zone 2: Gearbox input speed -G182

(0 to 7650 rpm)

Display zone 3: Gearbox output speed -G195

(0 to 7650 rpm)

Display zone 4:  Engaged gear (specification)

(0: Position P engaged

R: reverse gear

N: Neutral

1H, 1M, 1S: 1st gear

2H, 2M, 2S: 2nd gear

3H, 3M, 3S: 3rd gear

4H, 4M, 4S: 4th gear

5H, 5M, 5S: 5th gear

6H, 6M, 6S: 6th gear

H: Torque converter clutch open

M: Torque converter clutch closed

S: Torque converter clutch slipping)

 

Display group 002:

Display zone 1: Gearbox input speed -G182

(0 to 7650 rpm)

Display zone 2: Voltage at gearbox input speed sender -G182

(0 to 5.15 V)

Display zone 3: Gearbox output speed -G195

(0 to 7650 rpm)

Display zone 4: Voltage at gearbox output speed sender -G195

(0 to 5.15 V)

 

Display group 003:

Display zone 1: Current drive program

(in case of fault: Error,

Driving in D: DS,

Driving in S: SO,

Gearbox in warm-up phase: WU,

Tiptronic mode: TT,

Shift program ASR: AS,

Driving with cruise control: AC)

Display zone 2: Accelerator pedal position

(0 to 100%;

Kickdown switch pressed: Kickdown

In case of fault: Error)

Display zone 3: Vehicle speed (determined from gearbox output speed sender -G195)

(0 to xxx km/h)      

Display zone 4:  Engaged gear (specification)

(0: Position P engaged

R: reverse gear

N: Neutral

1H, 1M, 1S: 1. gear

2H, 2M, 2S: 2. gear

3H, 3M, 3S: 3. gear

4H, 4M, 4S: 4. gear

5H, 5M, 5S: 5. gear

6H, 6M, 6S: 6. gear

H: Torque converter clutch open

M: Torque converter clutch closed

S: Torque converter clutch slipping)     

 

Display group 004:

Display zone 1: Selector lever position

(P, R, N, D, S,

Tiptronic gate: manual

In case of fault: Error)

Display zone 2: Accelerator pedal value

(0 to 100%;

Kickdown switch pressed: Kickdown

In case of fault: Error)

Display zone 3: Detected travel profile

(UP: Incline

Flat: Flat

DW: Descent

Error: In case of fault)

Display zone 4: Engaged gear (specification)

(0: Position P engaged

R: reverse gear

N: Neutral

1H, 1M, 1S: 1. gear

2H, 2M, 2S: 2. gear

3H, 3M, 3S: 3. gear

4H, 4M, 4S: 4. gear

5H, 5M, 5S: 5. gear

6H, 6M, 6S: 6. gear

H: Torque converter clutch open

M: Torque converter clutch closed

S: Torque converter clutch slipping)

 

Display group 005:

Display zone 1: Incline

(-32 to +32%)

Display zone 2: Motion resistance

(0 to 100%;

In case of fault: Error)

Display zone 3: Sportiness factor

(0 to 100%;

In case of fault: Error)

Display zone 4: Accelerator pedal position

(0 to 100%;

Kickdown switch pressed: Kickdown

In case of fault: Error)

 

Display group 006:

Display zone 1: Gearbox oil temperature sender -G93

(-55 to 205°C)

Display zone 2: Solenoid valve 4 -N91, activation of lock-up clutch

(0 to 1.2 A)

Display zone 3: Status of lock-up clutch

(0: Lock-up clutch open

1: Lock-up clutch closed

2: Lock-up clutch slipped)

Display zone 4: Lock-up clutch slip

(-1250 to 1250 rpm

In case of fault: Error)

 

Display group 007:

Display zone 1: Solenoid valve 5 -N92, control current

(0 to 1.2 A)

Display zone 2: Solenoid valve 9 -N282, control current

(0 to 1.2 A)

Display zone 3: Solenoid valve 3 -N90, control current

(0 to 1.2 A)

Display zone 4: Solenoid valve 10 -N283, control current

(0 to 1.2 A)

 

Display group 008:

Display zone 1: Solenoid valve 6 -N93, control current

(0 to 1.2 A)

Display zone 2: Solenoid valve 4 -N91, control current

(0 to 1.2 A)

Display zone 3: States of solenoid valve 2 -N89 - solenoid valve 1 -N88

(00000000: Both solenoid valves off

00000001: Solenoid valve 2 -N89 off, solenoid valve 1 -N88 on

00000010: Solenoid valve 2 -N89 on, solenoid valve 1 -N88 off

00000011: Both solenoid valves on)

Display zone 4: Terminal 15 supply voltage at pins 27,28

(> 9.5V)

 

Display group 009:

Display zone 1: Brake test/brake light switch

(00000000: Brake test and brake light switch off

00000001: Brake test switch on, brake light switch off (only possible in case of fault)

00000010: Brake test switch off, brake light switch on (only possible in case of fault)

00000011: Brake test and brake light switch on)

Display zone 2: Status, accelerator pedal/kickdown switch

(00000000: Accelerator pedal pressed and kickdown switch not pressed

00000001: Accelerator pedal pressed and kickdown switch pressed

00000010: Accelerator pedal not pressed and kickdown switch not pressed

00000011: Accelerator pedal not pressed and kickdown switch pressed (not possible in normal state)

Display zone 3: Selector lever position

(P, R, N, D, S,

Tiptronic gate: manual

In case of fault: Error)

Display zone 4: Settings, multi-function switch -F125

(P: 1001,

Interim position: 1101;

R: 1100,

N: 101,

Interim position: 111;

D/Tiptronic gate: 110,

S: 1111)

 

Display group 010:

Display zone 1: Gearbox oil temperature sender -G93

(-50 to 205°C)

Display zone 2: Voltage at gearbox oil temperature sender -G93

(0 to 5 V)

Display zone 3: Gearbox status

(WL: Gearbox in warm-up phase,

no readout: gearbox in normal state,

ERROR: fault in gearbox)

Display zone 4: Terminal 15 supply voltage at pins 27,28

(> 9.5V)

 

Display group 011:

Display zone 1: Status of brake light switch

(Bls.ON: Brake light switch on, or brake pressed

Bls.OFF: Brake light switch off, or brake unpressed )

Display zone 2: Selector lever lock solenoid -N110

The selector lever lock solenoid -N110 locks out when de-energised, meaning when the battery is discharged the solenoid locks the selector lever in P. (Selector lever position P: Brake not pressed, readout: SL Shiftlock); Brake not pressed, readout: --; Selector lever position N for lengthy time: Brake not pressed, readout: SL (Shiftlock); Brake not pressed, readout: --; Selector lever position R, D, S: Brake pressed/not pressed, readout: --)

Display zone 3: Vehicle speed

(0 to xxx km/h)      

Display zone 4: Selector lever position

(P, R, N, D, S, Tiptronic gate: Manual, in case of fault: Error)

 

Display group 012:

Display zone 1: Selector lever position

(P, R, N, D, S, Tiptronic gate: Manual, in case of fault: Error)

Display zone 2: Tiptronic switch -F189

In this display zone only the Tiptronic buttons on the selector lever can be checked. The Tiptronic buttons on the steering wheel are checked in display group 13, zone 4.

(downshift button, upshift button, M switch (Tiptronic gate recognition), display blank: Tiptronic not active)

Display zone 3: Engaged gear

(0: Position P engaged

R: reverse gear

N: Neutral

1H, 1M, 1S: 1st gear

2H, 2M, 2S: 2nd gear

3H, 3M, 3S: 3rd gear

4H, 4M, 4S: 4th gear

5H, 5M, 5S: 5th gear

6H, 6M, 6S: 6th gear

H: Torque converter clutch open

M: Torque converter clutch closed

S: Torque converter clutch slipping)

Display zone 4: Torque limitation

(0 to 100%)

 

Display group 013:

Display zone 1: Selector lever position

(P, R, N, D, S,

Tiptronic gate: manual,

In case of fault: Error)

Display zone 2: Settings, multi-function switch -F125

(P: 1001,

Interim position: 1101,

R: 1100,

N: 101,

Interim position: 111,

D/Tiptronic gate: 110,

S: 1111)

Display zone 3: Tiptronic switch -F189

In this display zone only the Tiptronic buttons on the selector lever can be checked. The Tiptronic buttons on the steering wheel are checked in display group 13, zone 4.

(Downshift,

Upshift,

M-switch (Tiptronic gate recognition),

Readout blank: Tiptronic not active)

Display zone 4: Tiptronic switch -F189/Tiptronic switch on steering wheel -E389

(xxxx1: Tiptronic switch on steering wheel -E480 - Downshift;

xxx1x: Tiptronic switch on steering wheel -E479 - Upshift;

xx1xx: Tiptronic switch -F189 Downshift;

x1xxx: Tiptronic switch -F189, Recognition;

1xxxx: Tiptronic switch -F189 Upshift)

 

Display group 014:

Display zone 1: Accelerator pedal value

(0 to 100%;

Kickdown switch pressed: Kickdown

In case of fault: Error)

Display zone 2: Vacant

Display zone 3: Accelerator pedal status

(00000000: Accelerator pedal pressed,

00000001: Accelerator pedal not pressed (with accelerator pedal value 0%)

Display zone 4: Accelerator pedal value inaccurate, signal from engine control unit

(00000000: Accelerator pedal value OK,

00000001: Accelerator pedal value inaccurate)

 

Display group 025:

Display zone 1: Adaption points 1

(0: Adaption in progress,

1: Adaption being erased)

Display zone 2: Adaption points 2

(0: Learned adaption not active,

1: Adaption active, slip being controlled,

2: Adaption active, slip being learned)

 

Display group 028: Maximum temperature as from basic setting in hex

Display zone 1: Maximum temperature in lock-up clutch

(0 - FF  hexadecimal)

Display zone 2: Maximum ATF temperature

(0 - FF  hexadecimal)

Display zone 3: Maximum calculated temperature

(0 - FF  hexadecimal)

 

Display group 080:

Display zone 1: Manufacturer code/Date of manufacture/Manufacturer change status/Manufacturer test status no. - consecutive manufacturer's no.

(AN1 xxx / Day.Month.Year / xxxx Hxx / 001 xxxx)

Display zone 2: Vacant

Display zone 3: Vacant

Display zone 4: Vacant

 

Display group 125:

Display zone 1: Detection of engine control unit

(Engine 0: No CAN connection to engine control unit,

Engine 1: CAN connection to engine control unit OK)

Display zone 2: Detection of ABS control unit

(ABS 0: No CAN connection to ABS control unit,

ABS 1: CAN connection to ABS engine control unit OK)

Display zone 3: Detection of dash panel insert

(Combi 0: No CAN connection to dash panel insert,

Combi 1: CAN connection to dash panel insert OK)

Display zone 4: Vacant

 

Display group 126:

Display zone 1: Detection - data bus diagnostic interface

(Gateway 0: No CAN connection to data bus diagnostic interface,

Gateway 1: CAN connection to data bus diagnostic interface OK)

Display zone 2: Vacant

Display zone 3: Steering column electronics detection

(Steering 0: No CAN connection to steering column electronics control unit)

Data bus diagnostic interface,

Steering 1: CAN connection to steering column electronics control unit OK)

Display zone 4: Vacant

 

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