Motor Re-Home Function
The motor re-home function is initiated by pressing the "F%" key from the scan tool main ABS VI screen. The motor re-home function should always be used prior to bleeding the brake system to eliminate any trapped air within the hydraulic modulator cylinders. It accomplishes this by returning the hydraulic modulator pistons to their home positions and forcing any trapped air toward the bleeder valves where it can easily be bled out.
NOTE:
The motor re-home function cannot be performed if any current DTCs are present. If current DTCs are present, the vehicle must be repaired and the DTCs cleared before performing the motor re-home function.