Audi A5 Service Training

Audi A5 Service Training

Convenience electronics and driver assist systems
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Service Training
Audi A5 -
Convenience Electronics and Driver Assist Systems
Self-Study Programme 393

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Summary of Contents for Audi A5

  • Page 1 Service Training Audi A5 - Convenience Electronics and Driver Assist Systems Self-Study Programme 393...
  • Page 2 393_034 393_046 The new Audi A5 comes with an extensive range of optional equipment. Many systems previously exclusive to the larger models A6, Q7 and A8 are now also available on the A5.
  • Page 3: Table Of Contents

    The "Audi Service Key"........
  • Page 4: Overview

    Overview Networking / vehicles with infotainment CAN bus Rear-view camera system Air quality sensor J772 G238 Trailer detector control unit Refrigerant pres- J345 sure/temperature sender G395 Steering column Multi-function electronics con- steering wheel Garage door opera- trol unit control unit tion control unit J527 J453...
  • Page 5 Powertrain CAN bus Infotainment CAN bus Convenience CAN bus Diagnostics CAN bus Dash panel insert/suspension CAN bus LIN bus CAN-Extended Subbus systems Control unit with display in dash panel insert J285 Steering angle sender G85 Park assist control unit J791 Electric park and handbrake control unit...
  • Page 6: Networking / Vehicles With Most Bus

    Overview Networking / vehicles with MOST bus Rear-view camera system Air quality sensor J772 G238 Trailer detector Refrigerant pres- control unit sure/temperature J345 sender G395 Steering column Multi-function electronics con- steering wheel Garage door opera- control unit trol unit tion control unit J453 J527 J530...
  • Page 7 Powertrain CAN bus Convenience CAN bus Dash panel insert/suspension CAN bus CAN Extended Diagnostics CAN bus LIN bus Control unit with display in dash Subbus systems panel insert J285 Steering angle Most bus sender G85 Park assist control unit J791 Electric park and handbrake control unit...
  • Page 8: Installation Locations Of The Control Units

    Overview Installation locations of the control units Door control unit Headlight range control, control unit Data bus diagnostic interface Climatronic Seat memory control unit control units Dash panel insert control unit Onboard power supply control unit Door control unit Steering column electronics control unit...
  • Page 9 Trailer detector control unit Acoustic parking system control unit Rear-view camera Convenience system system control unit central control unit Lane change assist control unit (master) Lane change assist control unit (slave) 393_049 Dash panel insert/suspension CAN bus users Convenience CAN bus users Powertrain CAN bus users CAN-Extended users...
  • Page 10: Control Unit With Display In Dash Panel Insert

    New features The dash panel insert of the new Audi A5 explores new directions with its styling and concept. It is very differ- ent to the dash panel inserts in other Audi models in several respects. The most obvious changes are: •...
  • Page 11 The displays in an Audi A5 are shown below with the optional dash panel insert with col- – Petrol engine / diesel engine our display and navigation system.
  • Page 12 Control unit with display in dash panel insert The upshift indicator 393_043 Upshift indicator in Midline or Highline dash panel insert Function The upshift indicator in the driver information sys- The actual gear position is indicated continuously in tem is a new function designed to help the driver to the driver information system.
  • Page 13 Electrical connections of the control unit with display in dash panel insert The following lines are connected to the control unit with display in dash panel insert on the Audi A5: – 2 lines terminal 30 – 2 lines terminal 31 –...
  • Page 14: Door Control Units

    393_025 Versions The two door control units of the new Audi A5 are distinguished as driver and passenger control units (and not as left or right door control units). The door control will be are available in the entry-level and full-spec versions. Full-spec door control units sup- port the following additional functions and components: •...
  • Page 15 The "convenience door mirror fold-back" feature is to their initial position after "ignition "on"". optional on the A5. The driver can specify in the CAR menu on the MMI whether the door mirrors auto- matically fold back or not after locking the vehicle.
  • Page 16: Seat Control Units

    Electrically adjustable seats and a seat memory are available as optional equipment for the new Audi A5. The seat memory will only be available for the driver's seat on the Audi A5. It allows various posi- tions of the driver seat and the two door mirrors to be stored.
  • Page 17 Saving settings and adjusting the seats using the programming buttons The settings described above can be saved by An acoustic signal is given as feedback after a set- pressing the SET button followed by either of the ting is saved successfully. Again, the prerequisite memory location buttons.
  • Page 18 "Door control units". rently in use. In this way, the transition can be made At roll-out of the new Audi A5, seat positions will be easily at any time. determined by both SLP and Hall sensors.
  • Page 19 Reading in the memory control panel Memory operating unit, driver seat from onboard power supply control unit J519 Terminal 31 Emergency Driver door control unit CAN-high J386 CAN-low Terminal 30 Terminal 31 393_030 Legend SET button for programming the seat memory P1 button - memory location 1 P2 button - memory location 2 Function indicator LED in SET button, indicates when saving is in progress...
  • Page 20 Seat control units System overview - seat control unit Emergency OFF Seat and steering column adjustment CAN-high CAN-low control unit with memory Terminal 30 Terminal 31 J136 393_031 Legend Backrest limit switch (is required for adaption of the seat and protection of the gear mechanism on the adjustment motor) Easy entry button, for moving the seat forward or back for easier access to the rear seats Unlocked backrest recognition switch...
  • Page 21: Convenience System Central Control Unit

    Convenience system central control unit in models A4 (B7), A6 (C6), unit Q7 and A8 (D3) "new" convenience system control Convenience system central control unit in the new Audi A5 (B8) and unit the other models belonging to the B8 family Convenience system central control unit...
  • Page 22 Convenience system central control unit Diagnostic addresses To ensure as straightforward a transition as possible from the three discrete control units J393, J518 and J723 to the "new" convenience system control unit, the different diagnostic addresses - 46 and 05 - have been retained.
  • Page 23 • Central locking – Convenient opening and closing – Locking and unlocking the fuel filler flap – Activating the boot lid release system – Reading in the central locking aerial – Reading in the handle in the boot lid – Reading in the boot lid contact switch •...
  • Page 24: Personalisation And Adaption Channels

    Convenience system central control unit Personalisation and adaption channels With the transition to "online encoding" of the control units on the Audi A5, several coding bits can now be found under Adaption. New vehicle parameters not previously adaptable have now been included into the adaption function.
  • Page 25 • Operating options - convenient opening – Power window regulators – by radio-wave remote control (activate / deactivate) – via the lock cylinder in the driver's door (activate / deactivate) – using the window regulator switch in the driver's door (activate / deactivate) –...
  • Page 26: The Electronic Ignition Lock

    – Key pressed via microswitch • Reading and writing of data for the immobiliser or the "Audi Service Key" function to and from the ignition key Detailed information about the "Audi Service Key" can be found in a separate chapter •...
  • Page 27: The Ignition Key

    The ignition key The new Audi A5 features an all-new key concept. Instead of the turning movement of the ignition key in the ignition lock, the vehicle is now started by a push movement of the key in the ignition lock. No button oper- ated folding key is needed.
  • Page 28 Convenience system central control unit The ignition key removal lock The ignition key is locked mechanically when the If the vehicle can is unable to energise the lift mag- key is inserted into the electronic ignition lock in net of the ignition key removal lock due to a techni- such a way that it can no longer be removed by the cal fault and if the key is currently inserted in the driver.
  • Page 29 System overview The electronic ignition lock E415 has a microswitch The lift magnet of the ignition key removal lock is for a normally open contact which connects to also energised directly by the convenience system earth when the key is inserted in the ignition lock. central control unit.
  • Page 30 Starting with the ignition key An all-new operating logic is used in the new Audi A5 for terminal control and for starting the engine. When the key is in the ignition lock (NO contact), the electronic ignition lock differentiates between only two differ- ent key positions: –...
  • Page 31: The Electrical Steering Column Lock

    The electrical steering column lock In the new Audi A5, the electrical steering column In case of malfunction of the steering column lock, lock control unit J764 is again firmly attached to the it is necessary to replace the complete steering col- steering column.
  • Page 32 Convenience system central control unit System overview The prerequisite for locking of the steering column This happens as follows: by the electrical steering column lock control unit J764 is the presence of supply voltage across both – On receiving a "terminal 15" request, the conven- ELV enable lines.
  • Page 33 Note...
  • Page 34: Advanced Key

    There are no longer any central locking buttons on this vehicle category as optional equipment on the the door outer handles on the Audi A5. Closing and new Audi A5. The concept has been adopted from opening are activated by touching the capacitance the A6, Q7 and A8 models, and optimised to reduce sensors on the door outer handle.
  • Page 35 Installation locations of the entry and start authorisation aerials The number of aerials required for key recognition In the case of Audi A5, the aerials are located in the has been reduced to 3. driver's door, in the centre console and in the lug- gage compartment.
  • Page 36 Convenience system central control unit Overview of the vehicle locking and unlocking system Terminal 58s E408 R137 R138 R200 G605 G606 F248 Convenience system central control unit J393 393_018 E408 ... Kessy Start/Stop button F248 ... Release button for rear lid lock cylinder G605 ...
  • Page 37 Starting the engine with "Advanced Key" The new operating logic for terminal control and for starting the engine, as explained previously for starting the vehicle with the ignition key, can also be transferred easily to vehicles with "Advanced Key". As with the electronic ignition lock, the Start/Stop button distinguishes between two different states: –...
  • Page 38: The "Audi Service Key

    Convenience system central control unit The "Audi Service Key" Introduction The ignition key of the new Audi A5 supports a new The data read out can be displayed on a screen function known as "Audi Service Key". This key sup- using software.
  • Page 39 The status of the following items is stored in the "Audi Service Key" in a digital form as "OK" or "not OK" "yes" or "no" This means that, for example, the individual fluid levels are not stored in ml. The key only stores information about whether the filling level is "OK"...
  • Page 40 (if, for example, a fault is detected in the headlight range control system) On vehicles without the optional "Advanced Key", the writing of the "Audi Service Key" is implemented techni- cally as follows:...
  • Page 41 On vehicles with the optional "Advanced Key", the writing of data to the "Audi Service Key" is implemented as follows: Dash panel insert/ Dash panel suspension CAN bus Extended-CAN insert J285 Data bus Convenience diagnostic Convenience CAN bus Powertrain CAN bus...
  • Page 42: Immobiliser V

    For the first time, immobiliser V system is used on Many procedures on the immobiliser V system are the new Audi A5. It is an improved version of the more heavily automated, and some procedures have immobiliser IV system and there are no significant...
  • Page 43 Actions of the immobiliser at engine start-up If an Audi A5 is started with the ignition key in the electronic ignition lock, the immobiliser runs several que- ries and actions before the engine is started: After a normally open contact is detected, the ignition key and convenience system control unit J393 exchange immobiliser data with one another.
  • Page 44: The Anti-Theft Alarm System

    Convenience system central control unit The anti-theft alarm system The anti-theft alarm system on the Audi A5 has, apart from a few minor modifications, been adopted unchanged from the Audi TT Coupé. Anti-theft alarm sensors The anti-theft alarm sensor has the same part number as in the TT Coupé.
  • Page 45: The Homelink Garage Door Opener

    The HomeLink garage door opener New features The new Audi A5 is equipped with the HomeLink This all changes with the new Audi A5, where the "universal garage door opener" as featured on other garage door operating unit E284 is connected to the models.
  • Page 46: The Panorama Tilt Sunroof

    Convenience system central control unit The Panorama tilt sunroof Panorama tilt sunroof system overview A Panorama tilt sunroof is optional on the new Audi The control unit J245 has two hardware inputs via A5. The Panorama tilt sunroof has a separate con- which it is "encoded"...
  • Page 47 Functions in the sliding sunroof control unit J245 An anti-pinch protection function has been imple- After power-down level 2 of the battery power man- mented for safety reasons. A Hall sensor supplies agement system, the tilt sunroof cannot be opened, but can still be closed.
  • Page 48: Park Assist Control Unit (Acoustic Parking System)

    The new control unit J791 The park assist system will make parking even easier The park assist control unit on the Audi A5 is a new control unit. This control unit replaces the acoustic in future: as the vehicle passes a vacant parking parking system control unit J446 as featured previ- space, the system measures it.
  • Page 49 Communication structure of the acoustic parking system This diagram shows the communication structure for an eight-channel acoustic parking system on an Audi A5 without MMI. Park Onboard power assist supply control Dash panel insert/ unit suspension CAN bus J791 J519...
  • Page 50 Park assist control unit (acoustic parking system) System versions Three different acoustic parking systems are available on the new Audi A5: • The four-channel system with acoustic warning (rear acoustic parking system) ➔ Audi Parking System • The eight-channel system with acoustic warning and visual display (front and rear acoustic parking system) ➔...
  • Page 51: Rear-View Camera System Control Unit

    The illustration shows a rear-view camera image on this side. In Park mode 2 on the Audi A5, the field and the line which are not required are not shown.
  • Page 52: Lane Change Assistant Control Unit

    Audi Q7. It has identical hardware new Audi A5. The lane change assistant system on and functions to the system on the Audi Q7. the Audi A5 is expected to be available for order in the autumn of 2007. 393_045...
  • Page 53 Note...
  • Page 54 Note...
  • Page 55 The following self-study programmes have been prepared for the Audi A5: – SSP 392 Audi A5 – SSP 393 Audi A5 - Convenience Electronics and Driver Assist Systems – SSP 394 Audi A5 - Suspension – SSP 395 Audi A5 - Networking SSP 392 Audi A5 –...
  • Page 56 Vorsprung durch Technik www.audi.de All rights reserved. Technical specifications subject to change without notice. Copyright AUDI AG I/VK-35 Service.training@audi.de Fax +49-841/89-36367 AUDI AG D-85045 Ingolstadt Technical status: 01/07 Printed in Germany A07.5S00.35.20...

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