Rear Anti-Lock Brake Speed Sensor
WARNING: This page does not describe the selected car, but rather 9 other vehicles, including the 2002 Lincoln Navigator, 2002 Ford Expedition, 2001 Lincoln Navigator, 2001 Ford RV Cutaway, and 2001 Ford Pickup. However, it is still accessible from the selected car via links, so may be relevant.
On models equipped with 4-wheel anti-lock brakes, vehicle speed signal is generated by rear anti-lock brake speed sensor and sent to 4-Wheel Anti-Lock Brake System (4WABS) module. 4WABS module sends vehicle speed circuit to PCM, speed control module and speedometer. On models equipped with rear wheel anti-lock brakes, vehicle speed signal is generated from rear axle speed sensor. Generic Electronic Module (GEM) receives this signal and distributes to PCM, speed control module and speedometer.