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

Learn how to diagnose and fix P0700 transmission control malfunction in Tesla Model S (2012-2020). Step-by-step guide with diagnostic procedures and repair instructions.

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and set the parking brake.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect Transmission Fluid

• Remove the transmission fluid dipstick (if equipped) or drain plug.
• Check fluid level; if low, add the manufacturer-recommended transmission fluid type.
• Inspect fluid condition; if dark or burnt, a fluid change may be necessary.

3. Check TCM Connections

• Locate the transmission control module (usually near the transmission).
• Unplug the wiring harness from the TCM.
• Inspect for any signs of corrosion or damage on the connectors.
• Clean the connectors with electrical contact cleaner and reconnect them securely.

4. Test the TCM

• Set the multimeter to the voltage setting.
• Connect the probes to the TCM power and ground pins according to the service manual specifications.
• Verify that the readings fall within the specified voltage range (check service manual for exact values).

5. Update Firmware (if applicable)

• Connect the vehicle to a Wi-Fi network.
• Access the vehicle’s settings and check for software updates.
• Follow the prompts to install any available updates related to the transmission system.