dhowerto

I have a '99 GS300 and had the front struts, upper ball joints, wheel bearings, seals and hubs replaced. I drove it home from the the dealership this evening and while driving in traffic tapped my brakes. The dash pod lights and power went out. I tapped the brakes to pull off the road and all the power returned. A few miles down the road...same thing. Could this be the same problem? ABS sensor damaged during repair?