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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's battery to ensure safety.
• Raise the vehicle securely on jack stands if working underneath.

2. Inspect and Replace Transmission Fluid

• Sub-step 1: Locate the transmission fluid dipstick (if applicable) or access the fill plug.
• Sub-step 2: Check fluid level and condition. If fluid is low or burnt, drain the old fluid.
• Sub-step 3: Replace with manufacturer-recommended transmission fluid (e.g., Toyota WS fluid).
• Sub-step 4: Fill to the proper level using a funnel, ensuring no overfilling.

3. Check and Repair Wiring

• Sub-step 1: Visually inspect the wiring harness connected to the TCM for any signs of damage or wear.
• Sub-step 2: Use a multimeter to test for continuity in the wires leading to the TCM and sensors.
• Sub-step 3: Repair or replace any damaged wiring or connectors as needed.

4. TCM Inspection and Replacement

• Sub-step 1: Remove any covers or components obstructing access to the TCM.
• Sub-step 2: Disconnect the TCM electrical connector and remove the mounting bolts.
• Sub-step 3: Install the new TCM, ensuring proper alignment and secure mounting.
• Sub-step 4: Reconnect the electrical connector and any components removed during access.

5. Reconnect Battery and Clear Codes

• Sub-step 1: Reconnect the vehicle's battery.
• Sub-step 2: Use the OBD-II scanner to clear the P0700 code and any related codes from the system.