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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Memory seat, Reading measured value block, Audi A4 2001> Saloon; Avant

 

The following measured values are displayed:

 

Output signals:

 

Measured value block 001:

Readout 1 from left to right:

P1: (not pressed = 0; pressed = 1)

P2: (not pressed = 0; pressed = 1)

P3: (not pressed = 0; pressed = 1)

P4: (not pressed = 0; pressed = 1)

 

Readout 2 from left to right:

STOP switch: (unpressed = 0; pressed = 1)

Memory: (not pressed = 0; pressed = 1)

Door contact: (unpressed = 0; pressed = 1)

Term.15: (off = 0; on =1)

- (blank)

 

Readout 3:

Remote control key signal: (0; key number sent so long, but at least 3 seconds)

 

 

Readout 4 from left to right with code 00001:

Assignment of a remote control key to P1: (without assignment = 0; with assignment = 1)

Assignment of a remote control key to P2: (without assignment = 0; with assignment = 1)

Assignment of a remote control key to P3: (without assignment = 0; with assignment = 1)

Assignment of a remote control key to P4: (without assignment = 0; with assignment = 1)

 

Readout 4 from left to right with code 00002:

Automatic assignment of remote control key 1: (without assignment = 0; with assignment = 1)

Automatic assignment of remote control key 2: (without assignment = 0; with assignment = 1)

Automatic assignment of remote control key 3: (without assignment = 0; with assignment = 1)

Automatic assignment of remote control key 4: (without assignment = 0; with assignment = 1)

 

 

 

Measured value block 002:

Status of seat longitudinal adjustment button: (forward, back; pressed; implaus:)

Current readout, seat longitudinal adjustment: (number between 0.....65535)

Status of seat backrest rake adjustment button: (forward, back; pressed; implaus:)

Current readout, backrest rake adjustment: (number between 0.....65535)

 

 

Measured value block 003:

Status of seat height button: (raise; lower; unpressed; implaus:)

Current readout, seat height: (number between 0.....65535)

Status of seat rake button: (raise; lower; unpressed; implaus:)

Current readout, seat rake: (number between 0.....65535)

 

 

Measured value block 004:

Note: Values apply to personal memory location 1

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 005:

Note: Values apply to personal memory location 2

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 006:

Note: Values apply to personal memory location 3

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 007:

Note: Values apply to personal memory location 4

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 008:

Note: Values apply to remote control key memory location 1

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 009:

Note: Values apply to remote control key memory location 2

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 010:

Note: Values apply to remote control key memory location 3

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 011:

Note: Values apply to remote control key memory location 4

Stored value, longitudinal seat adjustment: (number between 0.....65535)

Stored value, backrest rake: (number between 0.....65535)

Stored value, seat height: (number between 0.....65535)

Stored value, seat rake: (number between 0.....65535)

 

 

Measured value block 012:

Status of head restraint adjustment button: (forward, back; pressed; implaus:)

Current readout, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 014:

Note: Values apply to personal memory location 1

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 015:

Note: Values apply to personal memory location 2

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 016:

Note: Values apply to personal memory location 3

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 017:

Note: Values apply to personal memory location 4

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 018:

Note: Values apply to remote control key memory location 1

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 019:

Note: Values apply to remote control key memory location 2

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 020:

Note: Values apply to remote control key memory location 3

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 021:

Note: Values apply to remote control key memory location 4

Stored value, head restraint adjustment: (number between 0.....65535)

 

 

Measured value block 080:

Readout from left to right:

Manufacturer works number and identifier (example: 004-HLO)

Date of manufacture (example: 02.05.02)

Manufacturer modification date (example: 12345678)

Manufacturer test status no. (example: 0001)

Manufacturer serial no. (example: 0022)

 

 

Measured value block 081:

Readout from left to right:

Chassis number

Assembly group number (123456789-01)

 

 

Measured value block 125:

Mode (one-wire; two-wire)

Driver door control unit (Driver door: 1 = active; 0 = inactive)

Convenience module control unit (Central: 1 = active; 0 = inactive)

Combi control unit (Combi: 1 = active; 0 = inactive)

 

 

Measured value block 126:

Steering column switch module (Steering wheel: 1 = active; 0 = inactive)

Passenger door control unit (Pass.door: 1 = active; 0 = inactive)

 

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