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Home >> Audi >> 2016 >> S5 Prestige, 2D Convertible >> Repair and Diagnosis >> External Pages >> Different car >> Section 1499 (Heating & Air Conditioning (On Board Diagnostic)) >> 01 On Board Diagnostic (OBD) >> Read Measuring Value Block (function 08) >> Measuring value blocks from display group "020" >> Display group "126"

Display group "126"

WARNING: This page is about a different car, the 2008 Audi S4, 2008 Audi RS 4, and 2008 Audi A4. However, it is still accessible from the selected car via links, so may be relevant.

Information from Convertible Top Control Module J256 and information on operating status of CAN-Bus comfort system 

Display field Meaning Remarks
2 Information from Convertible Top Control Module J256
  • Display = "Convertible top 0"
  • Messages from Convertible Top Control Module J256 not being received
  • This display can be ignored if applicable for Saloon, Avant and Coupe (control unit is only installed on Cabrio)
  • Display = "Convertible top 1"
  • Messages from Convertible Top Control Module J256 being received
  • If applicable, check and correct coding of operating and display module, Climatronic Control Module J255 on Saloon, Avant and Coupe.
 
  • Display = n. installed
  • The operating and display module, Climatronic Control Module J255 has been coded for a vehicle with no convertible top (Saloon, Avant or Coupe). If applicable, check coding of operating and display module, Climatronic Control Module J255.
NOTE:
  • With the Audi Cabrio, different settings are stored for closed and open convertible top in the operating and display module, Climatronic Control Module J255. On opening and closing the convertible top, the operating and display module, Climatronic Control Module J255 then automatically alters the setting to the value last set with convertible top closed or open.
  • As of Model Year 2003, operating and display modules, Climatronic Control Module J255 with part number index "H" onwards (with software version as of "XX16") have gradually been installed. This operating and display module, Climatronic Control Module J255 differs as follows from the model with software version "XX15" :
  • - Modified passenger compartment temperature regulation for Audi Cabrio and open convertible top (designed to be somewhat cooler)
  • - Extended temperature adjustment range; 16 °C (instead of 18 °C) is now the lowest temperature which can be set
Display field Meaning Remarks
3 Display field not used
  • Operating and display unit, Climatronic Control Module J255 with part number index up to "G" (up to software version "XX14") and index "AJ" onwards
  
  Information from Instrument Cluster Control Module J285
  • Operating and display unit, Climatronic Control Module J255 with part number index "H" onwards (as of software version "XX15") up to index "AH"
  • Display = "Voice 0"
  • No telephone hands-free unit installed in vehicle and "telephone operation voice recognition" module thus not transmitted.
  • Telephone hands-free unit installed in vehicle, however adaptation of appropriate control units not implemented as specified.
  • Telephone hands-free unit installed in vehicle, "telephone operation voice recognition" module not transmitted or received since switching on ignition.
  • Display = "Voice 1"
  • Telephone hands-free unit installed in vehicle, "telephone operation voice recognition" module received.
  • Data are transmitted via the CAN-Bus comfort system
  • If "0" is displayed for vehicles with telephone hands-free unit, start up telephone with hands-free unit if applicable. If display does not change:
  • check DTC memory → Diagnostic Trouble Code (DTC) Memory, checking (function 02) .
  • Check adaptation of Instrument Cluster Control Module J285 and Telephone/Telematics Control Module J526 "Guided Fault-Finding" Vehicle Diagnosis, Testing Info. System VAS5051B or Vehicle Diagnosis Service Syst. VAS5052
NOTE:
  • This display zone indicates that the message received by the Instrument Cluster Control Module J285 via the CAN-Bus comfort system contains a module for the "telephone operation voice recognition" function.
  • The information "telephone operation voice recognition" is currently only transmitted for vehicles with a factory-installed telephone hands-free unit. Depending on the vehicle version, the information may however only be transmitted if the voice input button has been pressed at least once or the telephone used at least once since switching on the ignition.
  • Depending on the version of the operating and display module, Climatronic Control Module J255, the information "Voice 1" is only displayed while information is actually being received via the CAN-Bus comfort system.
Display field Meaning Remarks
4 Operating status of CAN-Bus comfort system
  • Display = "two-wire"
  • CAN-Bus comfort system in two-wire mode (normal status)
  • Reception of information transmitted on CAN-Bus comfort system at both inputs ("Can-Hi" and "Can-Lo")
  • Display = "one-wire"
  • CAN-Bus comfort system in one-wire mode (emergency operation)
  • Reception of information transmitted on CAN-Bus comfort system at one input only ("Can-Hi" or "Can-Lo")
  • Data are transmitted on the CAN-Bus comfort system via two signal wires.
NOTE:
  • In contrast to the drive CAN-Bus system, the CAN-Bus comfort system can also operate in one-wire mode. However the system is then set to emergency operation.
  • If information is not received on the CAN-Bus comfort system, the operating and display module, Climatronic Control Module J255 does not activate the A/C Compressor Regulator Valve N280 (compressor off).
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