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

Solution

1. Preparation

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

2. Inspect and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, wrench set, fluid catch pan.
• Check the transmission fluid level using the dipstick.
  • If low, add the manufacturer-recommended fluid.
  • If dirty or burnt, drain the old fluid completely and replace it.
• Refill the transmission with new fluid according to the manufacturer's specifications.

3. Repair or Replace Wiring and Connectors

• Tools Required: Wire stripper/crimper, electrical tape, multimeter.
• Inspect the wiring harness to the TCM for any frays or shorts.
• Repair damaged wires by cutting and splicing with appropriate connectors.
• Ensure all connectors are securely attached and free of corrosion.

4. Check and Replace the Transmission Control Module (if necessary)

• Tools Required: Socket set, torque wrench, OBD-II scanner.
• If the TCM is faulty, remove it from its housing.
  • Disconnect the wiring harness and unscrew the module.
  • Install the new TCM by reversing the removal steps; ensure it is torqued to manufacturer specifications.
• Reconnect the battery.