my Tesla Model S Original (2012-2020) has a P0700 code what does it mean

Learn how to diagnose and fix P0700 transmission control malfunction in Tesla Model S. Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a flat surface and engage the parking brake.
• Disconnect the negative terminal of the battery to prevent electrical shock.

2. Check and Replace Transmission Fluid

• Tools Required: Socket set, fluid pump, clean containers.
• Remove the transmission fluid drain plug using a socket wrench.
• Allow the old fluid to drain completely into a clean container.
• Inspect the fluid; if it appears dark or has a burnt odor, it should be replaced.
• Reinstall the drain plug and torque to manufacturer's specifications (typically around 30 Nm).
• Use a fluid pump to refill the transmission with the recommended fluid (consult owner's manual for specifications).

3. Inspect and Repair Wiring

• Tools Required: Multimeter, wire strippers, electrical tape.
• Visually inspect wiring harnesses and connectors for signs of wear or damage.
• Use a multimeter to test continuity in the wiring.
• Repair or replace any damaged wires or connectors.
• Ensure all connections are secure and insulated with electrical tape.

4. Update Transmission Control Module (if applicable)

• Tools Required: Laptop with Tesla software.
• Connect the laptop to the vehicle's OBD-II port.
• Check for available software updates specific to the TCM.
• Follow the manufacturer's instructions to install any updates.

5. Reconnect Battery and Test

• Reconnect the negative terminal of the battery.
• Start the vehicle and allow it to run to check for any warning lights or codes.
• Test drive to ensure proper shifting and performance.