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Thread: A8 4E #08 HVAC label file

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    A8 4E #08 HVAC label file

    It doesn't have an official RT label so I wrote one awhile back but didn't finish it as it lacked the selective output test. I've documented some of them. Remaining I have 11 descriptions with no test numbers and 11 test numbers with no descriptions... so I guess they needs pairing. Crawling around the car listening to flap motors and guessing what's moving wasn't very productive

    Do you have these documented? Here's what I have and what's missing

    Code:
    ;---------------------------------------------------
    ;
    ; selective output test
    ;
    ;---------------------------------------------------
    ;
    ;
    T975,Heated rear window (Z1)
    T1593,Heated windscreen (Z2)
    ;T???,Rear left footwell heater element (Z42)
    ;T???,Rear right footwell heater element (Z43)
    T716,Air recirculation flap control motor (V113)
    T1274,Motor for air flow flap (V71)
    T710,Defroster flap control motor (V107)
    ;T???,Front left defroster/chest vent shut-off flap control motor (V200)
    ;T???,Front right defroster/chest vent shut-off flap control motor (V199)
    T711,Left footwell flap control motor (V108)
    T712,Right footwell flap control motor (V109)
    ;T???,Motor for temperature flap (V68)
    T657,Central vents control motor (V102)
    ;T???,Rear left vent warm/cold flap control motor (V220)
    ;T???,Rear right vent warm/cold flap control motor (V221)
    ;T???,Centre left vent control motor (V110)
    ;T???,Centre right vent control motor (V111)
    T1232,A/C compressor regulator valve (N280)
    T1273,Fresh air blower (V2)
    T737,Left heat regulation valve (N175)
    T738,Right heat regulation valve (N176)
    T739,Coolant circulation pump (V50)
    T796,Blower for temperature sensor (V42)
    T831,Radiator fan control unit stages 1+2 (J293)
    T1853,Front left heated seat (Z45)
    T1854,Front right heated seat (Z46)
    ;T???,Front left seat fan actuator
    ;T???,Front right seat fan actuator
    T798,Segment test
    ;
    ;
    ;Below are undocumented test numbers
    T20,
    T21,
    T65,
    T66,
    T708,
    T713,
    T714,
    T1195,
    T1271,
    T1867,
    T1868,
    And the full label so far

    Code:
    ;
    ; VAG-COM Label File
    ;
    ; Audi A8 (4E)
    ;
    ; Component: J255 Climatronic control unit (#08)
    ;
    ; P/N: 4E0-910-043-???
    ;
    ; includes measuring blocks, basic setting, coding, adaptation and selective output tests
    ;
    ; created on 26/Feb/2017 by MattyLondon (Ross-Tech forum member)
    ;
    ; last modification: 09/Oct/2018
    ;
    ;
    ;---------------------------------------------------
    ;
    ; measuring blocks
    ;
    ;---------------------------------------------------
    ;
    ;
    001,1,Current N280,regulating valve,in Amperes
    ; - Readout 0.05 A - Compressor off
    ; - Readout 0.30 A to 0.65 A - Compressor in control mode
    001,2,Duty Cycle N280,regulating valve,%
    ; - Readout 0 percent - Compressor off
    ; - Readout 30  40 percent to 100 percent - Compressor in control mode
    001,3,Duty Cucle G65,high-pressure sender,%
    ; - Readout 0 percent to 5 percent - Open circuit in wiring / voltage supply or earth connection
    ;                                  - High-pressure sender G65 defective
    ; - Readout 5 percent to 12 percent - Pressure in refrigerant circuit too low (system empty)
    ;                                   - High-pressure sender G65 defective
    ; - Readout 12 percent to 87.5 percent - Pressure in refrigerant circuit in permissible range
    ; - Readout above 87.5 ...90 percent - Pressure in refrigerant circuit too high
    ;                                    - Activation of radiator fan not OK
    ;                                    - High-pressure sender G65 defective
    ;                                    - Radiator and/or condenser dirt-clogged
    ;                                    - Fault in refrigerant circuit
    ; - Readout 90....100 percent - Short
    ;                             - Open circuit in voltage supply or earth connection
    ;                             - High-pressure sender G65 defective
    001,4,Refrigerant Circuit,Pressure,bar absolute
    ; - Readout below 2.6 bar - Pressure in refrigerant circuit too low (system empty)
    ;                         - High-pressure sender -G65 defective
    ; - Readout 2.6 bar to 29 bar - Pressure in refrigerant circuit in permissible range
    ; - Readout above 29 bar (even for short time) - Pressure in refrigerant circuit too high
    ;                                              - Activation of radiator fan not OK
    ;                                              - High-pressure sender G65 defective
    ;                                              - Radiator and/or condenser dirt-clogged
    ;                                              - Fault in refrigerant circuit
    ;
    B001,0,Potentiometer && Flap Alignment
    B001,1, , , 
    B001,2, , , 
    B001,3, , , 
    B001,4, , , 
    ;
    002,0,Compressor shut-off conditions
    002,1,Current
    002,2,Last
    002,3,Last but one
    002,4,Last but two
    ; Breakdown of compressor shut-off conditions:
    ; -  0   Compressor on (no shut-off condition detected)
    ; -  1   Compressor off (pressure in refrigerant circuit was or is too high)
    ; -  2   Compressor off (basic setting not performed)
    ; -  3   Compressor off (pressure in refrigerant circuit is too low)
    ; -  4   Compressor off (engine has been running for less than 5 sec.)
    ; -  5   Compressor off (engine speed is below 300 rpm)
    ; -  6   Compressor off (compressor switched off by ECON function)
    ; -  7   Compressor off (compressor switched off by OFF function)
    ; -  8   Compressor off (measured ambient temperature was below 2C and is still below 5C, there is no recirculated air request)
    ; -  9   Compressor off (no readout currently planned)
    ; - 10   Compressor off (vehicle voltage is below 9.5V)
    ; - 11   Compressor off (coolant temperature is too high)
    ; - 12   Compressor off (because of a request from the engine control unit)
    ; - 13   Compressor off (because of a faulty signal from high-pressure sender G65)
    ; - 14   Compressor off (because of a fault in the data bus system)
    ; - 15   Compressor off (the pressure in the refrigerant circuit in this driving period was at least 30 times too high)
    ; - 16   Compressor off (the measured temperature downstream of the evaporator has for over a minute been below 0C)
    ; - 17   Compressor off (the measured temperature downstream of the evaporator is below -5C)
    ; - 18   Compressor off (there is no valid measured value for the ambient temperature, e.g. both sensors defective)
    ; - 19   Compressor off (the engine is not running and the -J255 is in auxiliary heating mode)
    ; - 20   Compressor off (no readout currently planned)
    ; - 21   Compressor off (the automatic air recirculation function is set, the measured ambient temperature is between -8C and 5C, there is no request for air recirculation
    ; - 22   Compressor off (the measured ambient temperature is between -8C and 5C, there is a request for air recirculation but the measured temperature in the passenger compartment is below 8C)
    ; - 23   Compressor off (a fault in the radiator fans activation)
    ;
    003,0,Recirculated air flap control motor potentiometer (G143)
    003,1,Actual,value,In control motor V113
    003,2,Specified,value,Calculated by J255
    ; - Display range 55...205
    003,3,Lower stop,value,Determined during basic setting
    ; - Readout above 55 and below 95
    003,4,Upper stop,value,Determined during basic setting
    ; - Readout above 165 and below 205
    ;
    004,0,Air flow flap control motor potentiometer (G113)
    004,1,Actual,value,In control motor V71
    004,2,Specified,value,Calculated by J255
    ; - Display range 60...200
    004,3,Lower stop,value,Determined during basic setting
    ; - Readout above 60 and below 100
    004,4,Upper stop,value,Determined during basic setting
    ; - Readout above 160 and below 200
    ;
    005,0,Defroster flap control motor potentiometer (G135)
    005,1,Actual,value,In control motor V107
    005,2,Specified,value,Calculated by J255
    ; - Display range 70...195
    005,3,Lower stop,value,Determined during basic setting
    ; - Readout above 70 and below 110
    005,4,Upper stop,value,Determined during basic setting
    ; - Readout above 155 and below 195
    ;
    006,0,Front left defroster/chest vent shut-off flap (G318)
    006,1,Actual,value,In control motor V200
    006,2,Specified,value,Calculated by J255
    ; - Display range 10...250
    006,3,Lower stop,value,Determined during basic setting
    ; - Readout above 10 and below 50
    006,4,Upper stop,value,Determined during basic setting
    ; - Readout above 210 and below 250
    ;
    007,0,Front right defroster/chest vent shut-off flap (G317)
    007,1,Actual,value,In control motor V199
    007,2,Specified,value,Calculated by J255
    ; - Display range 5...250
    007,3,Lower stop,value,Determined during basic setting
    ; - Readout above 5 and below 45
    007,4,Upper stop,value,Determined during basic setting
    ; - Readout above 200 and below 250
    ;
    008,0,Left footwell flap control motor potentiometer (G139)
    008,1,Actual,value,In control motor V108
    008,2,Specified,value,Calculated by J255
    ; - Display range 5 ... 250
    008,3,Lower stop,value,Determined during basic setting
    ; - Readout above 5 and below 50
    008,4,Upper stop,value,Determined during basic setting
    ; - Readout above 210 and below 250
    ;
    009,0,Right footwell flap control motor potentiometer (G140)
    009,1,Actual,value,In control motor V109
    009,2,Specified,value,Calculated by J255
    ; - Display range 5...250
    009,3,Lower stop,value,Determined during basic setting
    ; - Readout above 5 and below 45
    009,4,Upper stop,value,Determined during basic setting
    ; - Readout above 210 and below 250
    ;
    010,0,Temperature flap control motor potentiometer (G92)
    010,1,Actual,value,In control motor V68
    010,2,Specified,value,Calculated by J255
    ; - Display range 80...180
    010,3,Lower stop,value,Determined during basic setting
    ; - Readout above 80 and below 120
    010,4,Upper stop,value,Determined during basic setting
    ; - Readout above 140 and below 180
    ;
    011,0,Centre vent control motor potentiometer (G138)
    011,1,Actual,value,In control motor V102
    011,2,Specified,value,Calculated by J255
    ; - Display range 65...195
    011,3,Lower stop,value,Determined during basic setting
    ; - Readout above 65 and below 105
    011,4,Upper stop,value,Determined during basic setting
    ; - Readout above 155 and below 195
    ;
    012,0,Rear left vent warm/cold flap control motor potentiometer (G351)
    012,1,Actual,value,In control motor V220
    012,2,Specified,value,Calculated by J255
    ; - Display range 5...250
    012,3,Lower stop,value,Determined during basic setting
    ; - Readout above 5 or 35 and below 80
    012,4,Upper stop,value,Determined during basic setting
    ; - Readout above 180 and below 220 or 250
    ;
    013,0,Rear right vent warm/cold flap control motor potentiometer (G352)
    013,1,Actual,value,In control motor V221
    013,2,Specified,value,Calculated by J255
    ; - Display range 5...250
    013,3,Lower stop,value,Determined during basic setting
    ; - Readout above 5 or 35 and below 80
    013,4,Upper stop,value,Determined during basic setting
    ; - Readout above 180 and below 220 or 250
    ;
    014,0,Left central vent control motor potentiometer (G136)
    014,1,Actual,value,In control motor V110
    014,2,Specified,value,Calculated by J255
    ; - Display range 25...230
    014,3,Lower stop,value,Determined during basic setting
    ; - Readout above 25 and below 65
    014,4,Upper stop,value,Determined during basic setting
    ; - Readout above 190 and below 230
    ;
    015,0,Left central vent control motor potentiometer (G137)
    015,1,Actual,value,In control motor V111
    015,2,Specified,value,Calculated by J255
    ; - Display range 25...230
    015,3,Lower stop,value,Determined during basic setting
    ; - Readout above 25 and below 65
    015,4,Upper stop,value,Determined during basic setting
    ; - Readout above 190 and below 230
    ;
    016,0,Centre vent sensors
    016,1,Centre left vent,G347
    ; - Readout above 5 and below 250
    016,2,Centre right vent,G348
    ; - Readout above 5 and below 250
    ;
    017,0,Temperature 1
    017,1,Left vent,G150,C
    017,2,Right vent,G151,C
    017,3,Centre vent,G191,C
    ;
    018,0,Temperature 2
    018,1,Evaporator out-flow,G263,C
    018,2,Fresh air intake,G89,C
    018,3,Ambient,G17,C
    018,4,Ambient,G17,C
    ;
    019,1,Dash panel,sensor G56,C
    019,2,Temperature sensor,blower V42,RPM
    ; - Readout above 2000 rpm - blower speed OK
    ; - Readout below 2000 rpm - blower -V42 not moving freely replace
    019,3,Coolant,temperature,C
    019,4,Idling speed,increase request,Off / On requested by J255 Climatronic
    ;
    020,1,Engine,speed,RPM
    020,2,Vehicle,speed,km/h
    020,3,Compressor torque,status,0 = current  1 = outdated
    020,4,Engine torque,,Necessary engine torque in Nm calculated by J255 for operation of the compressor
    ; - with compressor on - 1....25 Nm (control valve N280 is activated)
    ; - with compressor off - below 1.0 Nm (control valve N280 is not activated)
    ;
    021,1,Driver seat,ventilation J672,Refer to notes for code explanation
    021,2,Passenger seat,ventilation J673,Refer to notes for code explanation
    021,3,Terminal 58d,%
    021,4,Terminal 58s,%
    ;
    022,1,Radiator fan,V7,Transmitted request for radiator fan in percent via CAN
    022,2,Radiator fan,V7,Received request for radiator fan in percent via CAN
    022,3,Air quality,G238
    ; - Readout = 0 - No signal from sensor G238; sensor G238 defective
    ; - Readout = 1 - Minor increase in oxidisable gases in the air
    ; - Readout = 2 - Greater increase in oxidisable gases in the air
    ; - Readout = 3 - Minor increase in reducible gases in the air
    ; - Readout = 4 - Greater increase in reducible gases in the air
    ; - Readout = 5 (or 7) - Fresh air mode, no increased values for air impurities measured
    022,4,Air request,,Request for fresh or recirculated air from J255
    ; - Readout = 0 or 00 (fresh air)
    ; - Readout = 10 (request for recirculated air received from air quality sensor G238 and being met - recirculated air mode)
    ; - Readout = 11 or 12 or 13 (request for recirculated air received from air quality sensor G238 and not being met - fresh air mode)
    ; - Readout = 20, 30, 40 or 50 (request for recirculated air based on a specific setting - recirculated air mode)
    ; - Readout = 60 (partial recirculated air mode, air flow and recirculated air flaps open)
    ;
    023,0,Front and rear windscreen
    023,1,Rear window,Z1 button,Status of heated rear window button Z1 - 0=Off 1=On
    023,2,Heated windscreen,Z2 Signal,Signal to activate heated windscreen Z2 - 0=Off 1=On
    023,3,Rear window,Z1 Signal,Signal to activate heated windscreen Z1 - 0=Off 1=On
    023,4,Rear blind,E385 button,Status of rear roller blind button E385 - 0=Off 1=On
    ;
    024,0,G107 Photosensor
    024,1,Left side,Volts,Depending on intensity of sunlight penetration 1.9 ...3.2V
    024,2,Left side,Watts per m2,Depending on intensity of sunlight penetration 0...1000W
    024,3,Right side,Volts,Depending on intensity of sunlight penetration 1.9 ...3.2V
    024,4,Right side,Watts per m2,Depending on intensity of sunlight penetration 0...1000W
    ;
    025,1,Terminal 15,On / Off,Information transmitted by steering column electronics control unit J527
    025,2,Terminal 75,On / Off,Information transmitted by steering column electronics control unit J527
    025,3,Terminal 15,On / Off,Voltage from terminal 15 at J255 Climatronic control unit
    025,4,Terminal 30,Volts
    ;
    026,1,Standing time,hh:mm,Time span between ignition off and on
    026,2,Windscreen,wiper status
    ; - Readout = 00000 - No windscreen wiper or wash/wipe operation active (wiper at home position)
    ; - Readout = 00001 - Windscreen wiper intermittent
    ; - Readout = 00010 - Windscreen wiper stage 1
    ; - Readout = 00100 - Windscreen wiper stage 2
    ; - Readout = 01000 - Windscreen wiper wipe/wash
    026,3,Left seat,heating,Activation of seat heating. Readout ON or OFF
    026,4,Right seat,heating,Activation of seat heating. Readout ON or OFF
    ;
    027,0,Front left seat climate control
    027,1,Heating,0...6
    027,2,Ventilation,0...6
    027,3,Temperature,(measured)
    027,4,Temperature,(specified)
    ;
    028,0,Front right seat climate control
    028,1,Heating,0...6
    028,2,Ventilation,0...6
    028,3,Temperature,(measured)
    028,4,Temperature,(specified)
    ;
    029,0,Auxiliary heater 1
    029,1,Switch ON,signal,Signal to switch ON the auxiliary heater received by the data bus system
    029,2,Switch OFF,signal,Signal to switch OFF the auxiliary heater received by the data bus system
    029,3,Switch ON,signal,Signal to switch ON the fuel powered auxiliary heater received by the data bus system - diesel only
    029,4,Shut-off,condition,Shut-off condition for the fuel powered - diesel only
    ;
    030,0,Auxiliary heater 2
    030,2,Aux heating,request,On/off request calculated by J255 for auxiliary heating and ventilation 00=on 01=off
    030,3,V2 blower,aux heating mode,On/off request to switch on the fresh air blower -V2 in auxiliary heating mode
    030,4,Remaining,on-time,Maximum remaining permissible on-time of auxiliary heater in seconds
    ;
    031,0,Auxiliary heating/ventilation
    031,1,Signal,,Signal received by the data bus system for auxiliary heating/ventilation
    ; - Readout 00 (no switch-on time set in dash panel insert or on MMI)
    ; - Readout 01 (a switch-on time is set in dash panel insert or on MMI)
    ; - Readout 10 (the preset switch-on time in the dash panel insert or on the MMI has already elapsed)
    031,2,Signal,,Signal received by the data bus system to switch on the auxiliary heating/ventilation
    ; - Readout 00 (no signal)
    ; - Readout 01... 05 (ready or switch on auxiliary heating/ventilation)
    ; - Readout 06 (switch off auxiliary heating/ventilation)
    031,3,Signal,,Signal transmitted by J255 over the data bus system to regulate the output of the auxiliary heater
    ; - Readout 0 (no signal to reduce the heating power output of the auxiliary heater is received)
    ; - Readout 1 (the coolant temperature is sufficient to attain the specified heating power,
    ;             the heating power of the auxiliary heater is reduced by switching from full to partial load operation)
    031,4,Signal,,Signal transmitted by J255 over the data bus system to activate the auxiliary ventilation symbol (in the dash panel insert)
    ; - Readout 0 (do not activate symbol)
    ; - Readout 1 (activate symbol)
    ;
    032,1,Signal,,Signal received by the data bus system to assign the ignition key
    ; - Readout 0 (the ignition was switched on with a key for which the dash panel insert contains no assignment)
    ; - Readout 1...4 (the ignition was switched on with the key set in the dash panel insert to position 1, 2, 3 or 4)
    032,2,Signal,,Signal received from the data bus system to assign the driver by fingerprint
    ; - Readout 0 (no assignment made)
    ; - Readout 1....4 (a fingerprint was detected, assigned to position 1, 2, 3 or 4)
    032,3,Signal,,Signal received by the data bus system to assign the ignition key
    ; - Readout 0 (no ignition key is detected, or it is not enabled)
    ; - Readout 1 (an ignition key is detected and it is enabled)
    ;
    033,0,Requests received from energy management J644 with engine running
    033,1,Last,,Last request received by the data bus system to shut off electrical consumer
    033,2,Last,but one,Last but one request received by the data bus system to shut off electrical consumer
    033,3,Last,but two,Last but two request received by the data bus system to shut off electrical consumer
    ; - Readout 0 (no request received from the energy management control unit J644)
    ; - Readout 1 complete shut-off windscreen heating and additional footwell heater
    ; - Readout 2 complete shut-off seat heating and rear window heating
    ; - Readout 3 all consumers of stages 1 and 2
    ; - Readout 5 reduce the power output windscreen heating and additional footwell heater
    ; - Readout 6 seat heating and rear window heating
    ; - Readout 7 all consumers of stages 5 and 6
    ;
    034,1,Request,,Latest request received by the data bus system to shut off electrical consumers with ignition off or on (no-load current shut-off)
    ; - Shut-off stage 0 - no shut-off requested by energy management control unit J644
    ; - Shut-off stage 1...4 - all heating systems off
    ; - Shut-off stage 5 - auxiliary heating not possible
    ; - Shut-off stage 6 - no wakeup possible
    034,2,Request,,Latest request received by the data bus system to shut off electrical consumers with engine running (As group 033, display 1)
    034,3,Energy,balance,Last energy balance of the vehicle electrical system received by the data bus system
    ; - Readout 0 no restriction, but the system is fully loaded
    ; - Readout 1 no restriction, there is still a certain reserve of approx. 100 Watts
    ; - Readout 2 no restriction, there is still a certain reserve of approx. 200 Watts
    ; - Readout 3 no restriction, there is still a certain reserve of approx. 300 Watts
    ; - Readout 4 requested to save power and reduce the output of specific consumers, by approx. 400 Watts
    ; - Readout 5 requested to save power and reduce the output of specific consumers, by approx. 500 Watts
    ; - Readout 6 requested to save power and reduce the output of specific consumers, by approx. 600 Watts
    ; - Readout 7 requested to save power and reduce the output of specific consumers, by approx. 700 Watts
    034,4,Status,1=active,Status of the request received to shut off electrical consumers
    ; - Readout 0 (the control is not active)
    ; - Readout 1 (the control is active)
    ;
    035,1,Windscreen,Z2,Status received from the data bus system to activate the heated windscreen Z2
    ; - Readout 0 (no restriction is received from the energy management control unit -J644 for the activation)
    ; - Readout 254 or 255 (a restriction is received from the energy management J644, the power output for the heated windscreen is reduced or is shut off)
    035,2,Heated,seats,Status received from the data bus system to activate the heated seats
    035,3,Shut-off,requests,Number of requests received during the last 3 driving periods from the data bus system to shut off electrical consumers
    035,4,Shut-off,request,Last request received by the data bus system to shut off electrical consumers with ignition off or on (no-load current shut-off)
    ;
    036,1,Convenience,CAN,Operating status of convenience system data bus
    ;
    037,1,Version,,Version number of network management system - working level of convenience system data bus
    037,2,Version,,Version of communications matrix in Climatronic control unit J255
    ;
    038,0,Interior measurements from G355 via J528 roof electronics
    038,1,Relative,humidity,
    038,2,Cabin,temperature,
    038,3,Raw,value,Raw value - ignore readout at present
    038,4,Raw,value,Raw value - ignore readout at present
    ;
    039,1,G355,Status,0000=No fault - As soon as a 1 is displayed at any position there is a fault
    039,2,Windscreen,temperature,Calculated by the Climatronic control unit J255
    039,3,Windscreen,dew point,Calculated by the Climatronic control unit J255
    ;
    040,2,N175,opening time,The opening time of the left heat regulation valve N175 in percent
    040,3,N176,opening time,The opening time of the right heat regulation valve N176 in percent
    040,4,V50,pump,Activation of coolant circulation pump V50 by the Climatronic control unit J255
    ;
    ; Group 041 only with rear Climatronic control unit E265
    041,0,Rear left footwell
    041,1,Specified,temperature
    041,2,Measured,temperature
    041,3,Z42 heater,(Amperes)
    041,4,Z42 heater,diagnosis,0000 0000 = no faults
    ; - Vehicle heating diagnosis, left
    ; - Bit 0: Supply below limit - lower limit not achieved
    ; - Bit 1: Supply above limit - upper limit surpassed
    ; - Bit 2: Temperature sensor defective - electrical fault
    ; - Bit 3: Specified T not attainable - max. heating power
    ; - Bit 4: Vacant
    ; - Bit 5: Output stage defective - electrical fault in circuit
    ; - Bit 6: Overheating - currently not testable
    ; - Bit 7: Internal control unit error - defective
    ;
    ; Group 042 only with rear Climatronic control unit E265
    042,0,Rear right footwell
    042,1,Specified,temperature
    042,2,Measured,temperature
    042,3,Z43 heater,(Amperes)
    042,4,Z43 heater,diagnosis,0000 0000 = no faults
    ; - Vehicle heating diagnosis, right
    ; - Bit 0: Supply below limit - lower limit not achieved
    ; - Bit 1: Supply above limit - upper limit surpassed
    ; - Bit 2: Temperature sensor defective - electrical fault
    ; - Bit 3: Specified T not attainable - max. heating power
    ; - Bit 4: Vacant
    ; - Bit 5: Output stage defective - electrical fault in circuit
    ; - Bit 6: Overheating - currently not testable
    ; - Bit 7: Internal control unit error - defective
    ;
    043,0,Air flow
    043,1,Rear left,footwell,0 ...1.0 kg/h
    043,2,Rear right,footwell,0 ...1.0 kg/h
    043,3,J126,air blower,Temperature of the regulator in the fresh air blower control unit J126 in C
    ;
    044,0,Fresh air blower V2
    044,1,Current,actual,The actual current at the fresh air blower V2 in A (Amperes)
    044,2,Solar,usage,The operating time for the fresh air blower V2 via the solar roof in h (hours)
    044,3,Voltage,actual,The actual voltage at the fresh air blower V2 in V (Volts)
    044,4,Voltage,specified,The specified voltage at the fresh air blower V2 in V (Volts)
    ;
    045,0,Heated windscreen Z2
    045,1,Power,specified,The specified power output in W (Watts) to heat the heated windscreen Z2
    045,2,Power,actual,The actual output calculated by J255 based on the signal by J505 to heat windscreen Z2 in W (Watts)
    045,3,Current,actual,The current in A (Amperes) drawn to operate the heated windscreen Z2
    045,4,Z2,diagnosis,0000 0000 = no faults
    ; - Windscreen heating diagnosis
    ; - Bit 0: Supply below limit - lower limit not achieved
    ; - Bit 1: Supply above limit - upper limit surpassed
    ; - Bit 2: Overheating - currently not testable
    ; - Bit 3: Window breakage - mechanical fault
    ; - Bit 4: Insulation fault - electrical fault in circuit
    ; - Bit 5: Short to 42V - lower limit not achieved
    ; - Bit 6: Vacant
    ; - Bit 7: Internal control unit error - defective
    ;
    046,0,Heated windscreen Z2
    046,1,Smallest,resistance,in Ohms
    046,2,Largest,resistance,in Ohms
    046,3,Instantaneous,resistance,in Ohms
    ;
    047,0,Versions 1
    047,1,J126,Hardware,Blower control unit
    047,2,J126,Software,Blower control unit
    047,3,J505,Hardware,Heated windscreen
    047,4,J505,Software,Heated windscreen
    ;
    048,0,Versions 2
    048,1,Z42,Hardware,Rear left footwell heater element
    048,2,Z42,Software,Rear left footwell heater element
    048,3,Z43,Hardware,Rear right footwell heater element
    048,4,Z43,Software,Rear right footwell heater element
    ;
    049,0,Requests to rear Climatronic control unit
    049,1,Shut-off,Z10,Request sent by J255 to shut off the rear left heated seat Z10
    049,2,Shut-off,Z12,Request sent by J255 to shut off the rear right heated seat Z12
    049,3,Rear left,vent motor,Specification transmitted by J255 for the setting of the rear left vent control motor V218
    049,4,Rear right,vent motor,Specification transmitted by J255 for the setting of the rear right vent control motor V218
    ;
    050,0,Coding
    050,1,Coding,1
    050,2,Coding,2
    050,3,Coding,3
    ;
    ;
    ;---------------------------------------------------
    ;
    ; coding
    ;
    ;---------------------------------------------------
    ;
    ;
    C00,Climatronic control unit (J255) Coding
    C01,The overall coding is composed of three subcodes added together
    C02,------------------------------------------------------------------------------------------
    C03,Breakdown of code "1" (optional extras):
    C04,+0000001 = No assignment and always set
    C05,+0000002 = Vehicle with auxiliary heater
    C06,+0000004 = Vehicle with heated windscreen
    C07,+0000008 = Vehicle with heat-absorbing glass
    C08,+0000016 = Vehicle with rear Climatronic control unit (E265)
    C09,+0000032 = Vehicle with Audi one-touch memory (Fingerprint)
    C10,+0000064 = Vehicle with rear roller blind
    C11,+0000128 = Vehicle with sun roof with solar cells
    C12,------------------------------------------------------------------------------------------
    C13,Breakdown of code "2" (country version and vehicle model):
    C14,+0000000 = Germany & RoW - EXCLUDING USA and Japan *select one
    C15,+0000256 = USA & Canada *select one
    C16,+0000512 = Japan *select one
    C17,+0000768 = Hot climates e.g. Australia and Saudi Arabia *select one
    C18,+0001024 = Cold climates e.g. Scandinavia *select one
    C19,+0002048 = Diesel Engine
    C20,+0004096 = 8 cyl. engine TDi & Petrol
    C21,+0008192 = 10 cyl. engine (S8)
    C22,+0012288 = 12 cyl. engine (W12)
    C23,+0016384 = RHD e.g. UK and Japan
    C24,+0032768 = FSI engine
    C25,------------------------------------------------------------------------------------------
    C26,Breakdown of code "3" (rear seat heating and ventilation and glazing):
    C27,+0000000 = without rear Climatronic control unit E265 (with & without heated rear seats)
    C28,+0000000 = with rear Climatronic control unit E265 and...
    C29,              without control for heated seats & without control for ventilation
    C30,+0065536 = with rear Climatronic control unit E265 and...
    C31,              with control for heated seats & without control for ventilation
    C32,+0196608 = with rear Climatronic control unit E265 and...
    C33,              with control for heated seats & with control for ventilation
    C34,+1048576 = with 8 cyl. engine & heat insulating glass
    C35,+3145728 = with heat insulating glass with infrared characteristic line (PR-VW8)
    C36,------------------------------------------------------------------------------------------
    ;
    ;
    ;---------------------------------------------------
    ;
    ; adaptation
    ;
    ;---------------------------------------------------
    ;
    ;
    A003,0,Compressor shut-off by engine control unit via AC compressor shut-off function
    A003,5,Basic setting / factory 001
    A003,6,1 = Activation of the AC compressor regulating valve N280 is disabled as soon
    A003,7,      as the request is received from the engine control unit.
    A003,8,0 = Shut-off of activation of the AC compressor regulating valve N280
    A003,9,      based on AC compressor cut-in can be suppressed. (J255 ignores the request)
    ;
    A006,0,Decision-making aid - auxiliary heating/ventilation
    A006,5,Basic setting / factory 000
    A006,6,0 = J255 decides at ignition whether the auxiliary heater is started or whether the
    A006,7,      system operates in auxiliary ventilation mode.
    A006,8,1 = J255 always requests the last set mode regardless of the measured and preset temperatures.
    ;
    A007,0,Shut-off response, auxiliary heating/ventilation.
    A007,5,Basic setting / factory 000
    A007,6,0 = The auxiliary heating/ventilation mode is maintained until the
    A007,7,      preset operating time has elapsed or is switched off manually.
    A007,8,1 = The auxiliary heating/ventilation is switched off when the engine is switched off.
    ;
    A010,0,Limitation of air temperature control after evaporator
    A010,5,Basic setting / factory 010
    A010,6,10 = J255 can regulate the output of the air conditioner (dependent on the setting)
    A010,7,      from a temperature as low as 10 C.
    A010,8,...
    A010,9,05 = The upper control limit for the temperature of the air downstream of the
    A010,10,      evaporator is fixed to the preset temperature of 5C
    A010,11,...
    A010,12,09 = The upper control limit for the temperature of the air downstream of the
    A010,13,      evaporator is fixed to the preset temperature of 9C
    A010,14,Enter value between 05 to 09, or 10
    ;
    A011,0,Shut off solar function
    A011,5,Basic setting / factory 001
    A011,6,1 = The line for solar roof operating mode is displayed on the MMI.
    A011,7,      Operation of the fresh air blower via the solar roof can be switched on and off.
    A011,8,0 = The line for solar roof operating mode is not displayed on the MMI.
    A011,9,      If a solar roof is fitted - it cannot be switched off.
    ;
    A015,0,Fresh air blower speed in auxiliary heating/ventilation mode
    A015,5,Basic setting / factory 060
    A015,6,60 = 6.0v J255 regulates the maximum voltage at the fresh air blower V2
    A015,7,Entre value between 30 to 80 for 3.0v to 8.0v
    ;
    A016,0,Activation of auxiliary heater in residual heat function
    A016,5,Basic setting / factory 000
    A016,6,0 = J255 does not activate the auxiliary heater on activating the residual heat function.
    A016,7,1 = J255 activates the auxiliary heater on activation of the residual heat function if
    A016,8,      additional heat energy is required to achieve or maintain the set temperature.
    ;
    A018,0,Deactivation of electrical consumers when requested by J644
    A018,5,Basic setting / factory 000
    A018,6,0 = The request is implemented.
    A018,7,1 = The request is not implemented.
    A018,8,      But the power output for the consumers is limited to 600 watts.
    ;
    A019,0,Activation of auxiliary heater on vehicles with diesel engine
    A019,5,Basic setting / factory 000
    A019,6,0 = Auxiliary heater is activated by J255 if additional heat energy is required
    A019,7,      to achieve or maintain the set temperature.
    A019,8,1 = J255 does not activate Auxiliary heater in Econ mode (setting on MMI).
    ;
    A022,0,Adaption of fresh air blower characteristic
    A022,5,Basic setting / factory 000
    A022,6,0 = Fresh air blower runs at the speed assigned to that coding. (Automatic)
    A022,7,1 = Fresh air blower runs at a somewhat lower speed across the full characteristic line.
    A022,8,2 = Fresh air blower runs at a somewhat higher speed across the full characteristic line.
    ;
    A023,0,Adaption of temperature characteristic
    A023,5,Basic setting / factory 000
    A023,6,0 = J255 regulates the temperature to the values assigned to that coding. (Automatic)
    A023,7,1 = Temperature in Winter is regulated to a somewhat warmer temperature characteristic.
    A023,8,2 = Temperature in Summer is regulated to a somewhat warmer temperature characteristic. (USA Coding)
    ;
    ;
    ;---------------------------------------------------
    ;
    ; selective output test
    ;
    ;---------------------------------------------------
    ;
    ;
    T975,Heated rear window (Z1)
    T1593,Heated windscreen (Z2)
    ;T???,Rear left footwell heater element (Z42)
    ;T???,Rear right footwell heater element (Z43)
    T716,Air recirculation flap control motor (V113)
    T1274,Motor for air flow flap (V71)
    T710,Defroster flap control motor (V107)
    ;T???,Front left defroster/chest vent shut-off flap control motor (V200)
    ;T???,Front right defroster/chest vent shut-off flap control motor (V199)
    T711,Left footwell flap control motor (V108)
    T712,Right footwell flap control motor (V109)
    ;T???,Motor for temperature flap (V68)
    T657,Central vents control motor (V102)
    ;T???,Rear left vent warm/cold flap control motor (V220)
    ;T???,Rear right vent warm/cold flap control motor (V221)
    ;T???,Centre left vent control motor (V110)
    ;T???,Centre right vent control motor (V111)
    T1232,A/C compressor regulator valve (N280)
    T1273,Fresh air blower (V2)
    T737,Left heat regulation valve (N175)
    T738,Right heat regulation valve (N176)
    T739,Coolant circulation pump (V50)
    T796,Blower for temperature sensor (V42)
    T831,Radiator fan control unit stages 1+2 (J293)
    T1853,Front left heated seat (Z45)
    T1854,Front right heated seat (Z46)
    ;T???,Front left seat fan actuator
    ;T???,Front right seat fan actuator
    T798,Segment test
    ;
    ;
    ;Below are undocumented test numbers
    T20,
    T21,
    T65,
    T66,
    T708,
    T713,
    T714,
    T1195,
    T1271,
    T1867,
    T1868,

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  3. #2
    VCDS Distributor AIB Wolfgang's Avatar
    Join Date
    Sep 2014
    Location
    Germany
    Posts
    339
    Post Thanks / Like
    Hello

    T975,Heated rear window (Z1)
    T1593,Heated windscreen (Z2)
    ;T65,Rear left footwell heater element (Z42)
    ;T66,Rear right footwell heater element (Z43)
    T716,Air recirculation flap control motor (V113)
    T1274,Motor for air flow flap (V71)
    T710,Defroster flap control motor (V107)
    ;T21,Front left defroster/chest vent shut-off flap control motor (V200)
    ;T14,Front right defroster/chest vent shut-off flap control motor (V199)
    T711,Left footwell flap control motor (V108)
    T712,Right footwell flap control motor (V109)
    ;T1271,Motor for temperature flap (V68)
    T657,Central vents control motor (V102)
    ;T1867,Rear left vent warm/cold flap control motor (V220)
    ;T1868,Rear right vent warm/cold flap control motor (V221)
    ;T713,Centre left vent control motor (V110)
    ;T714,Centre right vent control motor (V111)
    T1232,A/C compressor regulator valve (N280)
    T1273,Fresh air blower (V2)
    T737,Left heat regulation valve (N175)
    T738,Right heat regulation valve (N176)
    T739,Coolant circulation pump (V50)
    T796,Blower for temperature sensor (V42)
    T831,Radiator fan control unit stages 1+2 (J293)
    T1853,Front left heated seat (Z45)
    T1854,Front right heated seat (Z46)
    ;T2108,Front left seat fan actuator
    ;T2109,Front right seat fan actuator
    T798,Segment test
    -Wolfgang

    Drive more talk less

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  5. #3
    Verified VCDS User
    Join Date
    Apr 2016
    Location
    United Kingdom
    Posts
    154
    Post Thanks / Like
    Many thanks Wolfgang, I'll update the file.


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