how to fix C0037 code on my Tesla Model S Plaid/Refresh (2021-present)?

Learn how to diagnose and fix C0037 wheel speed sensor issues in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface, and the ignition is turned off.
• Disconnect the battery to avoid any electrical hazards.

2. Inspect and Replace Wheel Speed Sensor

1. Remove the wheel:

   • Use a jack to lift the front of the vehicle and secure it with jack stands.
   • Remove the lug nuts with a socket set and take off the wheel.

2. Access the wheel speed sensor:

   • Locate the wheel speed sensor mounted on the left front hub assembly.
   • Disconnect the electrical connector from the sensor carefully.

3. Remove the old sensor:

   • Remove the retaining bolt securing the wheel speed sensor using a socket wrench.
   • Extract the sensor from its housing.

4. Install the new sensor:

   • Insert the new wheel speed sensor into the hub assembly.
   • Secure it with the retaining bolt and tighten to the manufacturer's specified torque (typically around 8-10 Nm).

5. Reconnect the electrical connector:

   • Ensure the connector is clean and free of corrosion.
   • Reattach the electrical connector firmly to the new sensor.

3. Reassemble and Test

1. Reinstall the wheel:

   • Place the wheel back onto the hub and hand-tighten the lug nuts.
   • Lower the vehicle and fully tighten the lug nuts to the specified torque (usually around 100-120 Nm).

2. Reconnect the battery:

   • Ensure all tools are removed from the engine bay and reconnect the battery terminals.

3. Erase error codes:

   • Use the OBD-II scanner to clear the C0037 code from the system.

4. Test drive the vehicle:

   • Take the vehicle for a test drive to ensure the warning lights are off and the wheel speed sensor is functioning correctly.