how to diagnose P0700 code in Toyota RAV4 Fifth Generation (2019-present)?

Solution

1. Preparation

• Gather tools and parts before starting the repair.
• Disconnect the negative terminal of the battery to ensure safety.

2. Inspect and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, socket set, drain pan.
• Remove the transmission fluid pan by unbolting it and allowing the old fluid to drain into a pan.
• Inspect the transmission filter; replace it if it is clogged or damaged.
• Clean the pan and replace the gasket, then refill the transmission with the correct type and amount of fluid as specified in the owner's manual.

3. Check Wiring and Connectors

• Inspect the wiring harness for any signs of wear, fraying, or corrosion.
• Ensure all connectors are securely connected and free from dirt and moisture.
• Repair or replace any damaged wiring or connectors.

4. Test and Adjust Transmission Range Switch

• Locate the transmission range switch and check its alignment.
• Use a multimeter to test for continuity in the switch; adjust or replace if necessary to ensure proper operation.

5. Clear Codes and Road Test

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear all codes and perform a road test to monitor the transmission’s performance.