Wheels, Tires & Brakes
I bought a 1991 S10 Blazer a few months ago and found that the ABS unit was unplugged at all three connections. I plugged it back in and it threw the codes 21, 25, 31, 35, 63, and 66. I looked into the problem and ohm tested all wheel speed sensors at the 8 pin connector (mind you I have 4 wheel...