Thanks to everyone who responded. I have cut and pasted your responses into an email and emailed them to the avionics shop that is looking at it for me.
They were not sure that the S-TEC 60-2 could fly the glide path on an LPV approach - they knew an S-TEC 55x could but were unsure whether...
I have an S-TEC 60-2 autopilot with Altitude Preselect and GPSS hooked up to a Garmin 530W.
My question is - - can this autopilot fly a GPS Waas approach, an LPV approach, and track the GP?
I can't get it to do it, it flies the ILS GP perfectly but I can't get it to fly the GP on the GPS...