Ranger 2WD L4-153 2.5L SOHC VIN C SFI (1998)
Speedometer Head: Description and Operation
NOTE: Beginning in 1998, the Vehicle Speed Sensor (VSS) has been deleted.
On vehicles equipped with 4-Wheel Anti-Lock Brake Systems (4WABS), the vehicle speed signal is generated by the rear anti-lock brake sensor and
sent to the 4WABS module. The 4WABS module sends the vehicle speed signal via circuit 679 (GY/BK) to all systems which require a vehicle speed
signal input. Vehicles equipped with Rear Anti-lock Brakes (RABS) generate a vehicle speed signal from the rear axle speed sensor. The Generic
Electronic Module (GEM) receives this signal (VSS_GEM) for internal use and then distributes it to the appropriate other users, (i.e., the PCM, speed
control module, and speedometer).
