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

Solution

1. Preparation

• Gather necessary tools and materials.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Transmission Fluid

• Step 1: Raise the vehicle and secure it on jack stands.
• Step 2: Locate the transmission fluid dipstick and remove it.
• Step 3: Use a fluid pump to extract old transmission fluid.
• Step 4: Replace with the appropriate type of transmission fluid as specified in the owner's manual.
• Tools Required: Fluid pump, funnel.

3. Inspect and Repair Wiring

• Step 1: Visually inspect the wiring harness connected to the TCM for any frays or breaks.
• Step 2: Clean any corrosion from the connectors using electrical contact cleaner.
• Step 3: Repair any damaged wires and ensure all connections are secure.
• Tools Required: Wire strippers, electrical tape, contact cleaner.

4. Replace Transmission Control Module (if necessary)

• Step 1: Locate the TCM, usually found near the transmission or under the dashboard.
• Step 2: Disconnect the battery again if not already done.
• Step 3: Remove the TCM by unscrewing the mounting bolts and disconnecting the wiring harness.
• Step 4: Install the new TCM by reversing the removal steps.
• Tools Required: Socket set, screwdriver.

5. Reconnect Battery and Test Drive

• Step 1: Reconnect the battery and ensure all connections are tight.
• Step 2: Start the vehicle and allow it to reach operating temperature.
• Step 3: Test drive the vehicle to ensure proper transmission operation and smooth shifting.