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Old 29th December 2020, 03:38 PM
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89forever 89forever is offline
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Quote:
Originally Posted by mattylondon View Post
Hi mate,

I'll then finish the output tests section then move on to measuring blocks, adaptations etc..
I'll do that tomorrow, i put this together from stuff i found, you may find it useful...


Adaptation



01 8=4˚ aux heat

02 8=4˚ aux heat

03 0= disabled WOT shutoff

06 0=intelligent aux heat/vent

07 1=shut off time aux when ign off

08 1= voice recognition quiet mode

16 1=activate aux heater if required for residual heat function

18 0=shut off when energy manager says so

19 0=use aux heater when required by heater demand

20 1=rear heated seats not switched off after 10 mins

21 1= add another line to MMI


Coding air conditioner Climatronic control unit -J255

The overall code is composed of three subcodes as follows:


Breakdown of code "1" (optional extras):



Code

Meaning



Code number (for conversion if encoding is not performed in Guided Fault Finding)

1

No assignment (always "1")

2

Vehicle with auxiliary heater

4

Vehicle with heated windscreen

8

Vehicle with heat-absorbing glass

16

Vehicle with rear Climatronic control unit -E265-

32

Vehicle with Audi one-touch memory (Fingerprint)

64

Vehicle with rear roller blind

128

Vehicle with sun roof with solar cells




Breakdown of code "2" (country version and vehicle model

256

Vehicle for USA (and Canada)

512

Vehicle for Japan

1024

Code not used at present (intended for cold climates, e.g. Scandinavia)

512 + 256

Code not used at present, intended for hot climates, e.g. Australia and Saudi Arabia (introduction pending) - The control is set up largely as for the USA.

2048

Vehicle with diesel engine

4096

Vehicle with 8-cyl. engine

8192

Vehicle with 10-cyl. engine

4096 + 8192

Vehicle with 12-cyl. engine

16384

Right-hand drive vehicle

32768

Vehicles with stretched body









Breakdown of code "3" (rear seat heating and ventilation, seat covers and glazing):





Code

Meaning





65536

Vehicles with rear Climatronic control unit - E265- with control for heated rear seats but without control for ventilation for rear seats

65536 +131072

Vehicle with control for heated rear seats and with control for ventilation for rear seats

26214

Seat design (seat covers in vehicles with seat ventilation) - Seat cover version "1".

524288

Seat design (seat covers in vehicles with seat ventilation) - Seat cover version "2".

524288 + 26214

Seat design (seat covers in vehicles with seat ventilation) - Seat cover version "3"

1048576

Vehicle glazing

0

Coding for vehicles with 8-cyl. engine and heat nsulating glass. - Actuation of heated rear window

stays on even at temperatures below 0 °C but time-limited depending on ambient temperature between 2

and 20 min).

2097152 + 1048576

Vehicle glazing - Coding configured with heat insulating glass with infrared characteristic line. - Introduction of this version pending. - Intended e.g. for PR no. "VW8".







Notes

Ventilation for the rear seats is only offered in conjunction with heated rear seats.

If Climatronic front control and display unit -J255- is to be encoded by way of direct entry of number code using function "07 Code control unit", the code numbers of the various versions and the 3 codes have to be added together.

Example: Code "1" e.g. "83" Code "2", "4096" Code "3" (vehicle without

rear Climatronic control unit -E265-) "0" Sum total of codes "1", "2" and "3" = "4179".




Adaption of Climatronic control unit -J255

Adaption channel 01

Basic setting ex factory 000

Temperature increase after start of auxiliary heating/ventilation mode.

This function is in display and operating units fitted at start of production

Not yet active (introduction pending).

- At basic setting 0 the specified temperature in auxiliary heating/ventilation mode is set equal to the specified temperature in air conditioner mode.

- By way of the adaptation function the specified temperature can be increased in 0.5 °C increments by up to 4.0 °C (input value 1...8).



Adaption channel 02

Basic setting ex factory 000

Temperature increase at end of preset auxiliary heating/ventilation period.

This function is in display and operating units fitted at start of production

Not yet active (introduction pending).

- At basic setting 0, the specified temperature in auxiliary heater/ventilation mode is set to the same level as the specified temperature in air conditioning mode.

- By way of the adaption function the specified temperature can be increased in 0.5 °C increments by up to 2.0 °C (input value 1...4).



Adaption channel 03

Basic setting ex factory 001

Compressor shut-off by engine control unit via AC compressor shut-off function.

- At basic setting 1 activation of the AC compressor regulating valve -N280 is disabled as soon as the request is received from the engine control unit.

- By way of the adaption function shut-off of activation of the AC compressor regulating valve -N280 based on AC compressor cut-in can be suppressed by changing the adaption to 0. (The -J255 ignores the request.)



Adaption channel 04

Basic setting ex factory 000

Motor/AC transmission ratio (dependent on compressor motor variant). The assignment to the respective engine is transmitted over the convenience system data bus.

- Adaption cannot be altered



Adaption channel 05

Basic setting ex factory 001

Expanded AC readiness.

- Adaption cannot be altered



Adaption channel 06

Basic setting ex factory 000

Decision-making aid, auxiliary heating/ventilation.

- At setting 0 (basic setting) the -J255 decides (at ignition on, by way of the measured actual and preset specification temperatures), whether the auxiliary heater is started or whether the system operates in auxiliary ventilation mode.

- At setting 1 (last function) the -J255 always requests the last set mode regardless of the measured and preset temperatures.



Adaption channel 07

Basic setting ex factory 000

Shut-off response, auxiliary heating/ventilation.

- At setting 0 (basic setting) the auxiliary heating/ventilation mode is maintained until the preset operating time has elapsed or is switched off manually.

- At setting 1 the auxiliary heating/ventilation is switched off when the engine is switched off.



Adaption channel 08

Basic setting ex factory 000

Reduction of fresh air blower speed with voice recognition. This function is not yet active with Climatronic control units fitted at start of production (introduction pending).

- At setting 0 the fresh air blower speed is not reduced.

- At setting 1...X the fresh air blower speed is reduced by the preset value.



Adaption channel 09

Basic setting ex factory 000

Currently not used (or no readout).



Adaption channel 10

Basic setting ex factory 010

Limitation of air temperature control after evaporator.

- At setting 10 the -J255 can regulate the output of the air conditioner (dependent on the setting) from a temperature as low as 10 °C.

- At setting 05...09 the upper control limit for the temperature of the air downstream of the evaporator is fixed to the preset value (e.g. 05 corresponding to 5°C).



Adaption channel 11

Basic setting ex factory 001

Shut off solar function.

- At setting 1 the line for solar roof operating mode is displayed on the MMI. Operation of the fresh air blower via the solar roof can be switched on and off.

- At setting 0 the line for solar roof operating mode is not displayed on the MMI. If a solar roof is fitted, it cannot be switched off.



Adaption channel 12

Basic setting ex factory 001

Currently not used (or no readout).



Adaption channel 13

Basic setting ex factory 001

Currently not used (or no readout).



Adaption channel 14

Basic setting ex factory 001

Currently not used (or no readout).



Adaption channel 15

Basic setting ex factory 060

Fresh air blower speed in auxiliary heating/ventilation mode.

- At setting 60 the -J255 regulates the maximum voltage at the fresh air blower -V2 e.g. to 6V.

- At setting 30...80 the fresh air blower speed is regulated to the preset value (45 corresponding to 4.5 V for example). Basic setting ex factory: 70 or 60.



Adaption channel 16

Basic setting ex factory 000

Activation of auxiliary heater in residual heat function.

- At setting 0 the -J255 does not activate the auxiliary heater on activating the residual heat function.

- At setting 1 the -J255 activates the auxiliary heater on activation of the residual heat function if additional heat energy is required to achieve or maintain the set temperature.



Adaption channel 17

Display depends on part number.

Currently not used



Adaption channel 18

Basic setting ex factory 000

Deactivation of electrical consumers when requested by energy management control unit

-J644.

- At setting 0 the request is implemented.

- At setting 1 the request is not implemented. But the power output for the consumers concerned is limited by the -J255 to 600 W.



Adaption channel 19

Basic setting ex factory 000

Activation of fuel-powered additional heater (auxiliary heater) on vehicles with diesel engine.

- At setting 0 the additional heater is activated by the J255 if additional heat energy is required to achieve or maintain the set temperature.

- At setting 1 the -J255 does not activate the additional heater in Econ mode (setting on MMI).



Adaption channel 20

Basic setting ex factory 000

Deactivation of rear seat heating (only vehicles with rear Climatronic control unit

-E265). This function is not yet active on control and display units fitted at start of production (phase-in from December 2002).

- At setting 0 the rear seat heating (left and right) is automatically deactivated about 10 minutes after switch-on.

- At setting 1 the seat heating is not switched off automatically.



Adaption channel 21

Basic setting ex factory 000

Deactivation of engine preheating function in auxiliary heater mode. This function is not yet active with Climatronic control units fitted at start of production (introduction pending).

- At setting 0 the line for engine preheating mode is not displayed on the MMI. (The engine is only preheated when surplus heat is available from the auxiliary heater.)

- At setting 1 the line for engine preheating mode is displayed on the MMI. (The engine is preheated if this mode is set.) This setting is not implemented on all vehicles (dependent on the MMI variant). The adaption of the auxiliary/additional heater should be changed in line with the customer’s wishes where appropriate.



Adaption channel 22

Basic setting ex factory 000

Adaption of fresh air blower characteristic (phase-in from December 2002).

- At setting 0 the fresh air blower runs at the speed assigned to that coding.

- At setting 1 the fresh air blower runs at a somewhat lower speed across the full characteristic line.

- At setting 2 the fresh air blower runs at a somewhat higher speed across the full characteristic line. )Corresponds to the characteristic stored for the USA coding.)



Adaption channel 23

Basic setting ex factory 000

Adaption of temperature characteristic (phase-in from December 2002).

- At setting 0 the -J255 regulates the temperature to the values assigned to that coding.

- At setting 1 the temperature in Winter is regulated to a somewhat warmer temperature characteristic.

- At setting 2 the temperature in Summer is regulated to a somewhat warmer temperature characteristic. )Corresponds to the characteristic stored for the USA coding.)



Adaption channel 24

Basic setting ex factory 000

Currently not used

- Intended for reduction of air flow to windscreen after starting (adaption 1, introduction pending).



Adaption channel 25

Basic setting ex factory 000

Currently not used

- Intended for setting to increase air flow to footwell in cooling mode (adaption 1, introduction pending).



Adaption channel 26

Basic setting ex factory 000

Currently not used

- On with vehicles with rear Climatronic control unit -E265, intended to increase the fresh air blower speed accordingly for more rapid attainment of the specified temperature following alteration of the specified temperature (adaption 1, introduction pending).



Adaption channel 81

Basic setting ex factory 000

Currently not used

The chassis number must be deleted via the component protection function after replacing the Climatronic control unit -J255.
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