how to fix P0700 code in my Toyota RAV4 XA50 (2019-2024)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Raise the vehicle using jack stands for easy access if required.

2. Transmission Fluid Change

• Sub-steps:
  1. Place a drain pan under the transmission pan.
  2. Remove the transmission pan bolts using a socket set.
  3. Carefully lower the pan, allowing old fluid to drain completely.
  4. Inspect the pan for metal shavings or debris; clean or replace accordingly.
  5. Replace the transmission filter if applicable.
  6. Reinstall the pan with a new gasket and torque bolts to manufacturer specifications (typically 8-10 ft-lbs).
  7. Refill the transmission with new fluid (Toyota ATF WS) through the dipstick tube.

3. Inspect and Repair Wiring

• Sub-steps:
  1. Check the wiring harness for any frays or breaks and repair or replace damaged sections as necessary.
  2. Clean any corrosion from connectors using electrical cleaner.
  3. Ensure all connections are secure.

4. Test and Replace TCM (if necessary)

• Sub-steps:
  1. If diagnostics indicate a faulty TCM, remove it from its mounting location.
  2. Disconnect the electrical connectors.
  3. Install a new TCM by connecting it to the harness and securing it in place.
  4. Reconnect the battery.