how to fix P0700 code in Toyota RAV4 XA40 (2013-2018)

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, multimeter, torque wrench, fluid catch pan.
• Ensure the vehicle is in a safe, level area and the engine is off before starting work.
• Disconnect the battery to prevent electrical shorts.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick; remove it and check the fluid level.
  2. If low, add the appropriate type of Toyota transmission fluid (typically WS) to the fill tube.
  3. If the fluid is dark or has a burnt smell, proceed to drain and replace:
     • Place a fluid catch pan under the transmission pan.
     • Remove the transmission pan bolts and carefully lower the pan to drain fluid.
     • Replace the transmission filter if applicable.
     • Clean the transmission pan and reinstall it with a new gasket, tightening bolts to manufacturer specifications (typically 8-10 ft-lbs).
     • Refill the transmission with new fluid through the dipstick tube.

3. Inspect and Test the Transmission Control Module (TCM)

• Sub-steps:
  1. Locate the TCM, typically found near the transmission or under the dashboard.
  2. Inspect the wiring harness and connectors for damage or corrosion; repair as necessary.
  3. Using a multimeter, check the TCM for proper voltage and ground connections according to the manufacturer's specifications.
  4. If the TCM is faulty, replace it with a compatible unit, following the manufacturer's installation instructions.

4. Reset the Transmission Control Unit

• Sub-steps:
  1. Reconnect the battery.
  2. Use the OBD-II scanner to clear the P0700 code and any other transmission codes.
  3. Start the vehicle and allow it to reach operating temperature while monitoring for codes.