how to fix P0700 transmission control system code in Tesla Outback 5th Generation (2015-2019)

Solution

1. Preparation

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

2. Address Transmission Fluid Issue

1. If fluid level is low, add the manufacturer-recommended transmission fluid to the appropriate level.
   • Tools Required: Transmission fluid pump, funnel.
   • Safety Warning: Allow the transmission to cool before checking fluid levels to avoid burns.

3. Inspect and Repair Wiring

1. Remove the undercarriage cover (if applicable) to access the wiring harness.
2. Visually inspect the wiring for any signs of damage or wear.
3. Repair or replace damaged wires or connectors as needed.
   • Tools Required: Wire strippers, soldering iron, heat shrink tubing.

4. Test and Replace the TCM

1. If the TCM is malfunctioning, remove the TCM from its mounting location.
   • Tools Required: Socket set.
2. Install a new TCM, ensuring all connections are secure and free from corrosion.
3. Reconnect the negative battery terminal.

5. Clear Codes and Test Drive

1. Use the OBD-II scanner to clear the P0700 code from the system.
2. Test drive the vehicle to ensure the transmission operates smoothly and check for any new codes.