Front Anti-Lock Brake System (ABS) Wheel Speed Sensor Assembly for Tesla Model S (2012-2016) | 6009167-00-A

Product Overview

Key Specifications

Why It’s Critical for Safety

• ABS Functionality: The Hall-effect sensor continuously measures wheel speed (0-250 km/h) and transmits data to the ABS module. If the module detects impending lockup (e.g., during hard braking on wet roads), it adjusts brake pressure 100+ times per second to keep wheels rotating—allowing you to steer around obstacles.
• Stability Control Integration: Works with Tesla’s ESP (Electronic Stability Program) to detect understeer/oversteer. By cross-referencing wheel speed data with steering input, it triggers corrective braking to keep the vehicle on track during sharp turns or sudden maneuvers.
• Precision Signals: Unlike magnetic sensors, Hall-effect technology eliminates signal interference from dirt, debris, or metal particles—ensuring accurate readings even in harsh road conditions (mud, snow, or salt).
• Durable Construction: The reinforced plastic housing resists impact from road debris, while stainless steel mounting hardware prevents corrosion. Copper wiring with heat-shrink insulation ensures reliable electrical connections for years.

Signs It Needs Replacement

• ABS Warning Light: Illumination on the dashboard indicates a faulty sensor or signal interruption.
• Brake Pedal Pulsation Issues: Inconsistent or absent pulsation during hard braking (a sign the ABS isn’t activating properly).
• Traction Control Errors: ESP warnings may appear if the sensor fails to send speed data, disabling stability features.
• Wheel Lockup During Braking: A clear indicator the sensor isn’t communicating with the ABS module, risking loss of control.

Installation Guidelines

• Direct OEM Replacement: No modifications needed. Simply:
  1. Disconnect the 2-pin electrical connector from the old sensor.
  2. Remove the mounting bolt (10mm socket) securing the sensor to the steering knuckle.
  3. Pull the sensor straight out from the knuckle (avoid twisting to prevent damage).
  4. Insert the new sensor, tighten the bolt to 5 Nm (3.7 ft-lbs), and reconnect the harness.
• Post-Installation Check: After installation, test drive at 40+ km/h (25+ mph) in a straight line for 5+ seconds to allow the ESP system to calibrate.
• Professional Tip: For balanced performance, replace both front sensors simultaneously if one fails—mismatched sensor ages can cause signal discrepancies.

For Tesla Model S Owners