how to fix P0700 code in Toyota Corolla E170 (2013-2019)

Solution

1. Preparation

• Gather all necessary tools and parts.
• Disconnect the vehicle battery to ensure safety.
• Raise the vehicle using a hydraulic jack and secure it with jack stands.

2. Inspect Transmission Fluid

• Remove the transmission dipstick and check the fluid level.
• If fluid is low, add the correct type of Toyota transmission fluid (typically ATF WS) to the appropriate level.
• If the fluid is burnt or contaminated, proceed to drain and replace the fluid.

3. Check and Repair Wiring

• Visually inspect wiring and connectors related to the TCM and transmission solenoids for any signs of wear, corrosion, or damage.
• Repair or replace any damaged wiring/ connectors identified.

4. Test Transmission Control Module

• Locate the TCM, which is typically found near the transmission.
• Disconnect the TCM connector and use a multimeter to check for proper voltage and ground according to the service manual specifications.
• If the TCM is faulty, replace it with a new unit and reprogram it if necessary.

5. Inspect and Replace Solenoids

• Access the transmission solenoids, which may require removing the transmission pan.
• Test the solenoids for resistance using a multimeter; replace any that are out of spec.
• Reinstall the transmission pan with a new gasket and refill the transmission fluid.