A buddy just put four new tires on his 02 WS6. The front are 275/40/17 and the rear is 295/45/17. After he put them on and drive for a couple miles, the ABS, TCS, E-brake light all on. Also when he step on the brake, it kick back.
I scan it and a code C0245 show up. I CANNOT DELETE IT. He said the light will turn off once he shut off the car. Then it'll turn back on after he start and drive for a couple miles.
I checked with my GM SI, this is what I found:
Circuit Description
The speed sensors used on the front of this vehicle are multiple pole and the rear uses a single pole magnetic pickup. This sensor produces an AC signal that the EBCM uses the frequency from to calculate the wheel speed.
Conditions for Setting the DTC
- The EBCM detects a deviation between the left and right rear wheel speeds of greater than 6 km/h (3.75 mph) at a vehicle speed of less than 100 km/h (62 mph) on vehicles equipped with TCS.
- The EBCM detects a deviation between the left and right front wheel speeds of greater than 10 km/h (6.25 mph) at a vehicle speed of less than 100 km/h (62 mph).
- The EBCM detects a deviation between the left and right rear wheel speeds of greater than 6 percent of the vehicle speed at greater than 100 km/h (62 mph) on vehicles equipped with TCS.
- The EBCM detects a deviation between the left and right front wheel speeds of greater than 4 km/h plus 6 percent of the vehicle speed at greater than 100 km/h (62 mph).
Is this bcuz the rear tire is bigger than the front so set off the code? How can I fix it?