Hub Assy Diagnosis

Is there any way to diagnosis a front hub assy sensor without going to the dealer. Such as putting a meter on the plug and taking a reading. I replaced a front hub assy on a 2001 grand am 8 months ago because the stock bearing was bad, now i have abs and trac lights on. I want to find out which wheel it is as it could also be a rear wheel sensor. thanks Thom

You can check the resistance at each sensor, ft about 1160 ohms rear about 1050, varies with temps, the right way is to scan it with a abs function scanner during a road test.

do you have any idea how much it might vary as the temps now are 30 to 40 degrees thanks thom

Just look for a ballpark figure around 1K ohms and compare all four wheel sensor readings. Also, measure the reference voltage ( 5 volts) from the ABS module to make sure it is getting to each hub at the electrical connector.

The specs from the FSM are based on temperature at 68 degrees F/20 degrees C.

ok i checked both front hubs, the driver side that we replaced 11 months ago reads 1.075, while the passenger side has no reading at all, i forgot to check the 5 volts going into the hub, well back outside and pull the wheel to take that reading. thanks for your help