Vehicle Speed Signal

Vehicle Speed Signal

Description

Two checks are performed on the vehicle speed.

The first check s for loss of any of the ABS wheel speed sensor signals. If any of the wheel speed sensor signals are not supplied for longer than the predefined time then a failure is registered

The second check compares the vehicle speed transmitted by the ABS control module and the vehicle speed calculated by the ECM using the data from the transmission output shaft speed sensor. If the transmitted and calculated speed signals do not match for longer than a predefined time then a failure is registered.