how to fix P0720 output speed sensor code in Tesla Model S Plaid/Refresh (2021-present)

Learn how to diagnose and fix P0720 output speed sensor code in Tesla Model S Plaid/Refresh. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench.
• Ensure the vehicle is parked on a flat surface and the ignition is turned off before beginning the repair.

2. Inspect and Replace Output Speed Sensor

1. Locate the Output Speed Sensor:

   • Refer to the service manual for the specific location of the output speed sensor on the Tesla Model S Plaid/Refresh.

2. Disconnect the Battery:

   • Disconnect the negative terminal of the 12V battery to prevent electrical shorts.

3. Remove the Underbody Shield (if applicable):

   • Use a socket set to remove any screws or fasteners holding the underbody shield in place to access the output speed sensor.

4. Unplug the Sensor:

   • Carefully disconnect the wiring harness from the output speed sensor.

5. Remove the Old Sensor:

   • Use the appropriate socket to unscrew the output speed sensor from its mounting location. Keep track of any washers or gaskets.

6. Install the New Sensor:

   • Apply a small amount of thread sealant if specified by the manufacturer.
   • Screw the new output speed sensor into place and tighten to the manufacturer's torque specifications.

7. Reconnect Wiring Harness:

   • Plug the wiring harness back into the new output speed sensor, ensuring a secure connection.

8. Reinstall Underbody Shield:

   • Replace any removed underbody shield components using the original screws or fasteners.

9. Reconnect the Battery:

   • Reconnect the negative terminal of the battery.

3. Clear Error Codes

• Use an OBD-II scanner to clear the P0720 code from the vehicle's computer.