I have an 03 grand am gt, there is only one way to check out the speed sensor, bring it to a garage and have them scan it for you... this will get it correct.
I have an 03 grand am gt, the speed sensors are built into the hub assembly on each wheel.
In the wheel hub along with the wheel bearing.
There is a vehicle speed sensor (VSS) and 4 ABS wheel speed sensors, one at each wheel.
The output speed sensor on the transmission is also the vehicle speed sensor. The output sensor is the two wire sensor on the front of the trans all the way to the driver side.
It is on front/rear hub assy - bearing, studs and wheel speed sensor
replacing a fuel sensor on a 2003 grand prix?
How far off is it? Did you change tire/wheel size? Bad speed sensor.
It is possible, but not likely for a transmission fluid leak from the speed sensors.
where is the speed sensor located on 2003 Toyota matrix
Left Front Wheel Speed Sensor Circuit Failure
Find out what the problem is. In my experience, it's usually a bad wheel speed sensor.
Chances are its a wheel speed sensor and will need the wheel bearing replaced. or it can be a loose or corroded wire attached to the sensor as well.