how to fix P0700 code on Tesla Model S Original (2012-2020)

Learn how to diagnose and fix P0700 transmission issue 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 the engine is off.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Transmission Fluid

• Sub-steps:
  • Locate the transmission dipstick or fluid fill port.
  • Remove the dipstick and check fluid level and quality. If low or burnt, proceed to replace the fluid.
  • Use a proper transmission fluid as specified by Tesla (typically Tesla's own brand).
  • Drain the old fluid completely by removing the drain plug.
  • Refill the transmission with the new fluid through the fill port, ensuring the correct amount is added (refer to the owner’s manual for specifications).

3. Inspect and Repair Wiring

• Sub-steps:
  • Locate the wiring harness connected to the TCM.
  • Inspect for any signs of wear, fraying, or corrosion.
  • If damaged, repair or replace the affected wiring and connectors.
  • Ensure all connections are secure and free of dirt or moisture.

4. TCM Inspection and Reset

• Sub-steps:
  • Locate the TCM, usually found near the transmission.
  • Inspect for physical damage or signs of overheating.
  • If no damage is found, use an OBD-II scanner to clear the P0700 code and any related codes.
  • Reconnect all components and the battery.