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

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is turned off.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Check and Replace Transmission Fluid

• Tools Required: Funnel, transmission fluid pump, socket set
• Remove the transmission fluid dipstick and check the fluid level.
• If low, add the appropriate type of transmission fluid (typically ATF WS for Toyota).
• If the fluid is discolored or has a burnt smell, drain and replace the fluid.
  • Locate the transmission fluid drain plug and remove it using a socket.
  • Allow the old fluid to drain completely.
  • Reinstall the drain plug and torque it to the manufacturer’s specifications.
  • Refill with new transmission fluid using a funnel and transmission fluid pump.

3. Inspect and Repair Wiring/Connectors

• Tools Required: Electrical contact cleaner, multimeter
• Visually inspect the wiring harness and connectors leading to the TCM for signs of wear, corrosion, or damage.
• Clean any corroded connectors with electrical contact cleaner and reconnect them securely.
• Use a multimeter to test for continuity and proper voltage at the TCM connectors.

4. Replace Transmission Control Module (if necessary)

• Tools Required: Socket set, torque wrench, TCM (if replacement is necessary)
• If diagnostics indicate the TCM is faulty, locate its mounting position (usually near the transmission).
• Remove the mounting bolts and disconnect the wiring harness from the TCM.
• Install the new TCM by reversing the removal process.
• Torque bolts to the manufacturer’s specifications.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal securely.
• Use the OBD-II scanner to clear the P0700 code and any associated codes.