how to fix P0700 code on my Toyota RAV4 Fifth Generation (2019-present)

Solution

1. Preparation

• Gather tools and parts needed for repair.
• Disconnect the vehicle battery to prevent electrical shorts.
• Ensure the vehicle is on a flat surface and secure it with wheel chocks.

2. Check Transmission Fluid

• Remove the transmission dipstick and wipe it clean.
• Reinsert the dipstick, then remove it again to check fluid level.
• If low, add the appropriate type of transmission fluid (Toyota ATF WS).
• If the fluid is dirty, consider a transmission fluid flush.

3. Inspect Wiring and Connectors

• Visually inspect the wiring harness and connectors leading to the transmission control module.
• Look for frayed wires, loose connections, or signs of corrosion.
• Repair or replace any damaged wiring or connectors.

4. Test the Transmission Control Module (TCM)

• Locate the TCM, typically found near the transmission or under the dashboard.
• Use a multimeter to check voltage supply and ground connections as per manufacturer specifications.
• If the TCM is faulty, replace it with a new unit.

5. Replace Transmission Solenoids (if necessary)

• Remove the transmission pan to access the solenoids.
• Disconnect the solenoid electrical connectors and remove the mounting bolts.
• Replace the faulty solenoids with new ones, ensuring proper orientation.
• Reinstall the transmission pan with a new gasket and torque bolts to manufacturer specifications.