how to troubleshoot and fix P0700 code in Toyota RAV4 Fourth Generation (2013-2018)

Solution

1. Preparation

• Gather tools and parts needed for repair.
• Disconnect the negative battery terminal to prevent electrical shock.
• Ensure the vehicle is on a flat surface and securely raised if working underneath.

2. Replace Transmission Fluid (if needed)

• Sub-steps:
  1. Locate the transmission fluid pan and drain plug.
  2. Remove the drain plug and allow the fluid to drain completely into a suitable container.
  3. Replace the drain plug and torque to manufacturer specifications.
  4. Refill the transmission fluid through the dipstick tube with the recommended fluid type (Toyota ATF WS).

3. Inspect and Repair Wiring and Connectors

• Sub-steps:
  1. Visually inspect the wiring harness and connectors leading to the TCM and transmission range sensor.
  2. Repair any damaged wires or replace corroded connectors.
  3. Ensure all connections are secure and free from moisture.

4. Replace Transmission Control Module (if faulty)

• Sub-steps:
  1. Locate the TCM, typically found near the transmission or under the dashboard.
  2. Disconnect the electrical connectors from the TCM.
  3. Remove the mounting bolts and take out the TCM.
  4. Install the new TCM and secure it with mounting bolts.
  5. Reconnect the electrical connectors.

5. Test Drive and Recheck Codes

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Start the vehicle and monitor the transmission operation.
  3. Use the OBD-II scanner to check for any remaining trouble codes.

Tools Required:

• OBD-II scanner
• Socket set
• Multimeter
• Torque wrench
• Fluid pump (for refilling transmission fluid)

Parts Required:

• Toyota ATF WS transmission fluid (if fluid change is required)
• Transmission Control Module (if replacement is necessary)
• Wiring connectors (if repairs are needed)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Disconnect the battery before working on electrical systems.
• Allow the vehicle to cool down before inspecting the transmission to avoid burns.