Identification
See Figure 1. The Anti-lock Braking System (ABS) brake system can be identified by a wheel speed sensor on the left side of the front wheel.
See Figure 2. The ABS system will also have an ABS module (Electro Hydraulic Control Unit (EHCU)).
Figure 1. Wheel Speed Sensor (ABS identification) (typical)
Figure 2. ABS Module (EHCU) (typical)