Audi-Resource

Coding control unit

With the aid of the coding program the following steps are run through for the vehicle voltage control unit 2 -J520:

The coding of the control unit is read.

You can then code the control unit with the code readout

or select the equipment specifications required for coding for the vehicle voltage control unit 2 -J520 when your control unit is recoded or if it was incorrectly coded.

Then you automatically get the code number

and can recode the control unit.

Preconditions:

Diagnostic wire VAS 5051/5A or 5051/6A

Required tools:

None

The five-digit code is composed as follows:

1 X X X X :	With automatic gearbox (term. 58D)
2 X X X X :	With manual gearbox (without term.58D)
0 X X X :	Without heated wiper fluid reservoir
1 X X X :	With heated wiper fluid reservoir
0 X X :	Without headlight washer system
1 X X :	With headlight washer system
0 X :	Without garage door opener
1 X :	With garage door opener
1 :	Without Servotronic
2 :	Servotronic characteristic in EEPROM

Abbreviations:

HWS -> Headlight washer system

UGDO -> Garage door opener

Coding example: 20100

With manual gearbox, without heated wiper/wash fluid reservoir, with headlight washer system, without garage door opener, without Servotronic

With the aid of the adaption program the following steps are run through for the vehicle voltage control unit 2 -J520:

Vehicle with lowline equipment:

Adapt MMI

Vehicle with highline equipment:

Adapt MMI

Adapt headlight washer system

Adapt country code

Adapt garage door opener

Preconditions:

Diagnostic wire VAS 5051/5A or 5051/6A

Required tools:

None

Adaption:

MMI adaption:

Channel 1 MMI timeout (0...1000 / 0 - 10.00 sec)

Channel 2 MMI run-on time (0...255 / 0 2.55 sec)

Channel 3 MMI activation voltage run-on run-in (0...200 / 0 - 20 V)

Channel 4 MMI activation voltage run-on run-out (0...200 / 0 - 20 V)

Channel 5 MMI delay HWS (0...200 / 0 - 20 V)

HWS adaption:

Channel 6 HWS activation delay time/HWS pump activation times:

Channel 7 T3 / T12 0...255 0 - 2.55 sec

Channel 8 T4 / T13 0...255 0 - 2.55 sec

Channel 9 T7 / T16 0...255 0 - 2.55 sec

The times T5, T6, T10, T14 and T15 cannot be changed by way of adaption. The time T9 = T18 is calculated from T9 = (T2 + T6 + T8) - (T3+ T4 +T5 + T7)

If T9 < 0, then T8 = T8 - T9 and T9 = 0.

Otherwise the pump and nozzle run asynchronously!

HWS pop-up washer jet motor activation times:

Channel 10 T2 / T11 0...255 0 - 5.1 sec

Channel 11 T8 / T17 0...255 0 - 5.1 sec

Country code:

Channel 50

1 = Germany

2 = France

3 =UK

4 = Italy

5 = undefined

6 = undefined

7 = open frequency

UGDO learning values:

Channel 51

1 = Clear all channels

2 = Learn mode channel 1

3 = Learn mode channel 2

4 = Learn mode channel 3

Reading measured value block

With the aid of the measured values program the following measured value blocks can be read and displayed for the vehicle voltage control unit 2 -J520:

Measured value block 001:

Voltage supply V

MMI display on/off button Off/On

MMI rotating display mechanism: Limit switch, display closed pressed/unpressed

MMI rotating display mechanism: Limit switch, display open pressed/unpressed

Measured value block 002:

Activation of engine MMI inactive/active

HWS left pop-up washer jet motor inactive/active

HWS right pop-up washer jet motor inactive/active

Actuation of HWS pump relay inactive/active

Measured value block 003:

Displayed text: Current control

Current preset current at Servotronic valve Readout * 0.01

Servotronic: OK/N.OK Syst. OK / Syst.n.OK

Measured value block 004:

Term.58 D: Display illumination On LED

Actuation of hose heating relay Off/On

Component protection inactive/active

Measured value block 005:

Engine speed Not available

Road speed signal Not available

Request rotate rotating display mechanism via CAN Off/On/not available

Dipped beam Off/On/not available

Measured value block 006:

Front-wash Off/On/not available

Ambient temperature Not available

Dimming term. 58d (via CAN) Not available

Washer fluid warning inactive/active/not available

Measured value block 007:

Term. 15 Off/On/not available

Term. X Off/On/not available

Energy Manager dynamic shut-off stage Number/not available

Energy Manager static shut-off stage Number/not available

Measured value block 008:

UGDO buttons (from UGDO) Bit 0: Button 1

Bit 1: Button 2

Bit 2: Button 3

UGDO LED code (by LIN) Number/not available

UGDO function code (by LIN) Number/not available

UGDO country code (from UGDO) Number/not available

Measured value block 009:

UGDO timeout learning counter Number/not available

LIN error counter Number/not available

LIN maximum error counter (term. 15 cycle) Number/not available

Measured value block 010:

LIN1 slave1 Slave one 0/Slave one 1

Measured value block 020:

RB: Component protection

RB: Component protection bypass

Measured value block 021:

IRB: Bootloader version string

Measured value block 080:

Manufacturer works number and identifier

Date of manufacture

Manufacturer modification date

Manufacturer test status no.

Manufacturer serial no.

Measured value block 081:

Chassis number

Module number or serial number

Type test number

Measured value block 082:

Flash toll code (FTC)

Module number or serial number

Hardware module / Hardware sort key

Software module / Software sort key

Measured value block 140:

Battery Manager Battery 0 / Battery 1 / Battery 1 wire

Gateway Gateway 0 / Gateway 1 /

Gateway 1 wire

Driving authorisation system (DAS) IPM driver 0 / IPM driver 1 /

IPM driver 1 wire

Measured value block 141:

Climate Climate 0 / Climate 1 / Climate 1 wire

SMLS SMLS 0 / SMLS 0 / SMLS 1 wire

CAN data bus IPM front passenger IPM front passenger 1wire /

IPM front passenger 2 wire