in NYS, well actually the greater NYC area, cars (FWD and RWD) are required to go through a dyno test simulating a drive someone might do (well from the looks of it no one would ever drive that way), and measuring the emisions.
During this test the drive wheels are on rollers while the non-drive wheels are on pavement not turning.
Recently I had a reart brake lock up while sitting over night, as I came down my icy driveway that wheel would not turn, once pavement was hit it started, but the lenght of the driveway was enought to turn on the ABS light, which I assume was because the ABS computer did not receive a signal from one sensor.
Now wouldn’t the dyno test do the same thing, just the ABS computer would not see the signal from 2 sensors?