how to fix P0706 code in Tesla Model S Plaid/Refresh (2021-present)

Learn how to diagnose and fix P0706 transmission range sensor issues in Tesla Model S Plaid. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's 12V battery to prevent electrical shorts.
• Allow the vehicle to cool down before working on the transmission.

2. Inspect and Clean Connectors

• Locate the Transmission Range Sensor (usually mounted on the transmission housing).
• Disconnect the wiring harness from the sensor.
• Inspect the connectors for corrosion or dirt; clean using electrical contact cleaner if necessary.
• Reconnect the wiring harness securely.

3. Replace Transmission Range Sensor

• Remove the mounting bolts securing the Transmission Range Sensor using a socket set.
• Carefully pull the sensor off the transmission.
• Install the new Transmission Range Sensor by aligning it correctly and securing it with bolts to the manufacturer's torque specifications (typically around 8-10 Nm).
• Reconnect the wiring harness to the new sensor.

4. Refill Transmission Fluid (if necessary)

• If the fluid level was low, locate the transmission fluid fill port.
• Use a funnel to add the correct type of transmission fluid (check manufacturer's specifications) until it reaches the proper level.

5. Reconnect Battery and Clear Codes

• Reconnect the 12V battery terminals.
• Use the OBD-II scanner to clear the P0706 code from the system.
• Perform a soft reset of the vehicle's systems if applicable.