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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.

Tools Required:

• OBD-II scanner
• Socket set
• Multimeter
• Torque wrench
• Fluid catch pan
• Funnel

2. Check Transmission Fluid

• Sub-steps:
  • Remove the transmission dipstick and wipe it clean.
  • Reinsert the dipstick and pull it out to check fluid level.
  • If low, add the appropriate transmission fluid (Toyota ATF WS).
  • Inspect fluid condition; if burnt or contaminated, it should be replaced.

3. Inspect Wiring and Connectors

• Sub-steps:
  • Locate the transmission wiring harness and connectors.
  • Inspect for frayed wires, loose connections, or corrosion.
  • Repair or replace any damaged components.

4. Test and Replace TCM (if necessary)

• Sub-steps:
  • Use a multimeter to test the TCM for proper voltage and resistance.
  • If the TCM is faulty, remove it by unscrewing the mounting bolts and disconnecting the wiring harness.
  • Install the new TCM by reversing the removal process and ensuring all connections are secure.

5. Clear Codes and Test Drive

• Sub-steps:
  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear the P0700 code and any related codes.
  • Test drive the vehicle to ensure proper shifting and operation.