how to fix ABS light on Tesla Model 3 Highland (2024-present)

Solution

1. Preparation

• Gather the necessary tools and parts for the repair.
• Ensure the vehicle is parked on a level surface and set the parking brake.
• Disconnect the vehicle’s power supply by turning off the main battery.

2. Inspect and Clean ABS Sensors

• Tools Required: Socket set, cleaning brush, brake cleaner
• Locate the ABS wheel speed sensors on each wheel hub.
• Remove the sensor mounting bolts using a socket.
• Clean the sensors using brake cleaner and a soft brush to remove any debris or dirt.
• Reinstall the sensors and secure them with the mounting bolts to the specified torque.

3. Check and Repair Wiring

• Tools Required: Multimeter, wire connectors, electrical tape
• Visually inspect the wiring harness connected to the ABS module for frays or damage.
• Use a multimeter to check for continuity in the wiring.
• Repair any damaged wires by splicing in new wire connectors and securing with electrical tape.

4. Inspect and Refill Brake Fluid

• Tools Required: Brake fluid reservoir, funnel
• Locate the brake fluid reservoir and check the fluid level.
• If low, refill the reservoir with the recommended brake fluid type (refer to the owner's manual).
• Inspect for any signs of leaks in the brake lines and components.

5. Reset ABS System

• Tools Required: Tesla diagnostic tool or OBD-II scanner
• Connect the diagnostic tool to the vehicle’s diagnostic port.
• Navigate to the ABS system settings and perform an ABS reset.
• Clear any stored error codes and verify that the ABS light is no longer illuminated.