98Quattro

I probably need a registered version of VCDS to check measuring blocks on central locking right?? Will that pinpoint the malfunctioning part?

OzzyLime

You can use VCDS Lite for free, the alternative is a cable/software package deal. If you are in FL I could let you borrow mine.

98Quattro

UPDATE******

Sent out my ABS module to Modulemasters and received it back yesterday. Installed it in the vehicle and now I no longer have a Christmas Tree effect on my dash. No ABS, brake, or airbag lights.

Thanks for everyone's help.

Now if I only I could figure out my power locking problems. :|

audinutt

Are you sure your secondary Air pump is bad? It is common for the vacuum lines which open the valves on the rear of the engine head to leak and cause SAI codes. I've fixed mine this way and several others have.

https://www.audiworld.com/forums/sho....php?t=1735689

Scroll Down to PaulW's post.

It's for an A8 but similar concept

The brake light switch code should go away if you depress the brake pedal once before scanning the car.

The ABS module needs a rebuild, contact module master.

-Richard