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

Solution

1. Preparation

• Gather tools and parts required.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Raise the vehicle securely using jack stands if necessary.

2. Check and Replace Transmission Fluid

• Sub-steps:
  • Locate the transmission dipstick and remove it.
  • Check fluid level; if low, add the recommended fluid type (Toyota ATF WS).
  • If fluid is dirty or burnt, drain and replace it.
• Tools Required:
  • Transmission funnel
  • Drain pan
  • Socket set

3. Repair or Replace Wiring and Connectors

• Sub-steps:
  • Inspect and clean the wiring harness and connectors related to the TCM.
  • If damaged, replace the wiring harness or connectors as necessary.
• Tools Required:
  • Wire strippers/crimpers
  • Electrical contact cleaner

4. Test and Replace Transmission Control Module (if necessary)

• Sub-steps:
  • If the TCM is faulty, remove it from its mounting location.
  • Disconnect the electrical connectors and replace with a new TCM.
  • Reinstall the new module and reconnect all wiring.
• Tools Required:
  • Socket set
  • Torque wrench

5. Reconnect Battery and Clear Codes

• Sub-steps:
  • Reconnect the negative battery terminal.
  • Use the OBD-II scanner to clear the P0700 code and any other fault codes.
• Tools Required:
  • OBD-II scanner