Help with dash warning lights, abs and traction control ESP lights
I have read a good bit on this problem and can't seem to find anyone with the exact same set of symptoms, hope someone with more mileage under their belt can help me.
Have a 2002 s4 with 6mt. When I start the car I have no indicator lights or warning lights. Once I get to approximately 10mph the abs and ESP light both come in together.
I had my mechanic run a scan and he came up with a bad o2 sensor which I replaced and got ride of my CEL. Also code for intermittent brake light switch (f) which I replaced and didn't seem to help. The other error code was for abs unit signal, but I found that was just a plug I pulled out when doing o2 sensor and reconnected.
Anyone have any idea what may be causing this? Speed sensor maybe? Going to have another session with the vag-com next week but wanted to get some ideas.
Thanks in advance.