how to fix C0300 code in Tesla Model S Original (2012-2020)

Learn how to diagnose and fix C0300 traction control issues in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's high-voltage battery following proper safety procedures to prevent electric shock.

2. Inspect and Clean Wheel Speed Sensors

• Locate the wheel speed sensors at each wheel hub.
• Remove any dirt or debris around the sensors using a soft cloth.
• Ensure that the sensors are securely mounted and that there are no obstructions.

3. Repair or Replace Wheel Speed Sensors

• If the sensor is damaged:
  • Remove the wheel: Use a jack to lift the vehicle and secure it on jack stands.
  • Remove the wheel speed sensor: Unscrew the sensor from its mounting bracket using a socket set.
  • Install the new sensor: Place the new sensor in position and tighten it to the manufacturer's torque specifications (usually around 8-10 Nm).
• If wiring issues are found:
  • Repair or replace damaged wiring and connectors as necessary.

4. Reconnect Battery and Clear Codes

• Reconnect the vehicle's high-voltage battery and ensure all connections are secure.
• Use the OBD-II scanner to clear the C0300 code from the system.

5. Test Drive the Vehicle

• Conduct a test drive to check for proper operation of the traction control system and ensure the warning light does not reappear.