my Tesla Model S Plaid/Refresh (2021-present) shows error code P0720 what does it mean

Learn how to diagnose and fix P0720 vehicle 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.
• Ensure the vehicle is parked on a level surface and engage the parking brake.

Tools Required:

• OBD-II scanner
• Multimeter
• Socket set
• Torque wrench

2. Inspect and Repair Wiring

• Sub-steps:
  • Disconnect the battery to ensure safety.
  • Remove any protective covers to access the vehicle speed sensor wiring.
  • Visually inspect wiring for frays, breaks, or corrosion.
  • Repair or replace damaged wiring as necessary.

3. Replace Vehicle Speed Sensor

• Sub-steps:
  • Locate the vehicle speed sensor, typically found on the transmission.
  • Using the socket set, remove the bolts securing the sensor.
  • Carefully pull the old sensor out and disconnect the wiring harness.
  • Connect the new sensor to the wiring harness and install it back into the transmission.
  • Torque the bolts to the manufacturer's specifications (consult service manual for exact torque value).

4. Reconnect Battery and Clear Codes

• Sub-steps:
  • Reconnect the battery terminals.
  • Use the OBD-II scanner to clear the P0720 error code.
  • Perform a test drive to confirm the repair was successful.