ABS and TC light during dyno pulls
 

I had my 2013 BRZ on our new dyno yesterday and today and even doing the long press of the traction button to turn it off, after a pull the ABS and TC light come on. The codes come back as faulty front wheel speed sensors, which makes sense since they're not moving compared to the rear wheels. I had read previously that long pressing the traction button would be adequate, but I'm assuming I need to do the pedal dance when on the dyno to keep this from happening. Anyone else experienced this?

Yup. It throws that code because the rear wheels are spinning at whatever speed and the fronts are stationary. No need to do the pedal dance, just the long press. Those lights will go off after about a minute of driving on the street.

For the record, service manual recommends otherwise. See item 4. Chassis Dynamometer Precaution.

edit: and I just noticed the actual dance is even shorter than what I posted in the pedal dance thread. Pfff...

Thanks, I didn't even think of looking in the factory service manual. I'll just do the pedal dance from now on or go through my OFT. I'm going to flash back to stock and re-test Monday so I'll have a baseline for my mods.

Good to know. Thank you !