how to fix P0700 code in 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. Check Transmission Fluid

• Remove the transmission dipstick and wipe it clean.
• Reinsert the dipstick fully and then remove it again to check the fluid level.
• If low, add the recommended transmission fluid (Toyota ATF WS) through the dipstick tube.
• Inspect fluid for burnt smell or metal shavings, indicating possible internal failure.

3. Inspect Wiring and Connectors

• Visually inspect the wiring harness and connectors leading to the TCM and transmission for any frays, corrosion, or disconnections.
• If damaged, repair or replace the wiring or connectors as necessary.

4. Test the Transmission Control Module (TCM)

• Using a multimeter, measure voltage at the TCM connectors while the ignition is on.
• Compare your readings with the specifications in the service manual.
• If the TCM is faulty, replace it following the steps below.

5. Replace the Transmission Control Module

• Remove the mounting screws or bolts securing the TCM.
• Disconnect the electrical connectors from the TCM.
• Install the new TCM by connecting the electrical connectors and securing it with screws/bolts.
• Reconnect the battery and clear the error codes using the OBD-II scanner.