Circuit Description

A processed wheel speed sensor signal is sent from ABS controller to theft deterrent module. Signal is then sent from theft deterrent module to ECM. ECM calculates vehicle speed from this signal. Vehicle speed circuit is increased to battery voltage within ECM. This DTC covers vehicle speed signal circuit from theft deterrent module to ECM. Circuit from ABS controller to theft deterrent module is covered by ABS controller diagnosis.

Conditions required to set DTC are:

• Vehicle speed signal is less than 3 MPH for longer than 5 seconds.