Airbag light just wont turn off!

[Cotulla]

On my Audi A4 B7 1.9TDI BKE the Airbag light is always on. Audi already replaced all the plugs under the seats and driver as well as sassenger Airbags. I use Carport to read fault codes but it can't get into the Airbag control unit!

Anybody knows what could be wrong?

[smc14c]

What dtc's have you got ?

[slick_dick]

check the fuse for the airbag ecu dude!!!

autodata should show you where it is

[Cotulla]

Can't read the fault codes as Carport won't let me in, Fuse is OK.

[smc14c]

Refer to wiring diagram, check earths & power to airbag ecu, also check diagnostic lines from obd to airbag ecu, if all ok suspect defective airbag ecu or double check with another diag tool.

[Cotulla]

I think Carport just generally can't read the Airbag ECU. Maybe anybody knows if this is normal with carport?