Audi Workshop Service and Repair Manuals

Performing zero compensation of steering angle sender -G85- Perform zero compensation of steering angle sender after removing steering wheel, after performing adjustment on the running gear during wheel alignment and after renewing the ABS with EDL control unit -J104-, the steering angle sender -G85- or the steering column, or if zero compensation is required in fault tables. Procedure l  Requirement: ABS with EDL control unit -J104- properly coded → Chapter. –  Start the engine. –  Turn the steering wheel approx. 60° to left or right and back again until the front wheels are in straight-ahead position and the steering wheel is positioned horizontally (tolerance ± 4.5°). –  Perform short road test on a level surface. Drive in a straight line and not faster than 20 km/h and observe the following points. If the steering wheel is not horizontal: –  Make the necessary adjustments by checking wheel alignment and fit steering wheel in correct position → Running gear, front-wheel drive and four-wheel drive; Rep. Gr.44, then perform zero compensation. If the steering wheel is horizontal during the road test: –  Bring the vehicle to a standstill - still keeping it in a straight line. l  Do not change position of steering wheel! l  Do not switch off ignition! –  Connect vehicle diagnostic, testing and information system -VAS 5051 A- → Chapter and select vehicle system “03 - Brake electronics”. When doing this the ignition must be switched on.

Indicated on -VAS 5051 A-: –  From list -1- select diagnostic function “11 - Login procedure” or “11 - Coding II”.

Indicated on -VAS 5051 A-: 1 -  Enter code word –  Use keypad -2- to enter code “40168” and confirm entry by touching Q key.   Note If display on -VAS 5051 A- reads “function unknown or function can not be performed at present” the login procedure or coding II were not successful. Repeat login procedure or coding II. –  Terminate function “11 - Login procedure” or “11 - Coding II” by touching ← key.

Indicated on -VAS 5051 A-: –  From list -1-, select function “04 - Basic setting”.

Indicated on -VAS 5051 A-: 1 -  Enter display group –  Use keypad -2- to enter “060” for “display group number 060” and confirm by pressing the Q key.

l  The ABS warning lamp -K47- flashes. Indicated on -VAS 5051 A-: A -  Basic setting B -  Display group 60 1 -  Zero compensation OK 4 -  0.0° Zero compensation of steering angle sender -G85- is now completed. –  Terminate function “04 - Basic setting” by pressing the ← key.   Note After you press function “06 - End output”, the ABS warning lamp -K47- and the traction control system warning lamp -K86- light up for approx. two seconds.

Possible fault messages: Indicated on -VAS 5051 A-: 1 -  Zero compensation is not possible 4 -  12.3° The determined value is outside the tolerance range for zero compensation. –  Proceed as follows to rectify the fault: 1.  Check zero position of steering angle sender -G85- in measured value block 004 → Anchor. 2.  Interrogate fault memory → Chapter. 3.  Erase fault memory → Chapter. 4.  Conclude the transfer of data with the function “06 - End output”. 5.  Switch off ignition. 6.  Switch ignition on again. 7.  Perform zero compensation again.