Audi Workshop Service and Repair Manuals > A4 Mk2 > Body | Fitting instructions: retrofitting key-operated switch to deactivate airbag on front passenger side | Passenger protection | Retrofitting wiring harnesses 8E1 970 XXX (Audi A4 2001 ?) | Assembly work, coding airbag control unit J234 and interrogating fault memories of control units

Assembly work, coding airbag control unitJ234 and interrogating fault memories of control units

Assembly work, coding airbag control unit -J234- and interrogating fault memories of control units

–	Install centre console → General body repairs, interior; Rep. Gr.68.

–	Install ashtray (front) → General body repairs, interior; Rep. Gr.68.

–	Install air conditioner operating element/heater controls → Heating, air conditioning; Rep. Gr.87.

–	Clip in trim for switch module at top.

–	Install radio → Communication; Rep. Gr.91.

–	Install glove box:

t	Audi A4 2001 ► up to week 35/2004 (including Audi S4) → Chapter

t	Audi A4 2001 ► from week 36/2004 onwards (including Audi S4) → Chapter

–	Switch on ignition.

WARNING

Make sure nobody is in the vehicle when the battery is being connected.

–	Connect battery earth strap → Electrical system; Rep. Gr.27.

–	Observe measures to be taken after connecting the battery → Electrical system; Rep. Gr.27.

–	Re-code airbag control unit -J234- → Chapter.

–	Perform functional test.

–	Deactivate airbag on front passenger side with key-operated switch to deactivate airbag on front passenger side -E224-.

Warning lamp for airbag deactivated on front passenger side -K145- must light up constantly.

–	Activate airbag on front passenger side with key-operated switch to deactivate airbag on front passenger side -E224-.

Warning lamp for airbag deactivated on front passenger side -K145- must go out.

–	Interrogate and erase fault memories of all control units. To do so, use a suitable vehicle diagnostic, testing and information system, e.g. vehicle diagnostic, testing and information system -VAS 5051B-.

Audi Workshop Service and Repair Manuals