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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is on a level surface and use jack stands for added safety if raising the vehicle.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick and remove it to check fluid level.
  2. If low, add the correct type of transmission fluid as specified in the owner’s manual (Toyota ATF WS).
  3. If fluid is dirty or burnt, drain and replace the transmission fluid.
  4. Replace the transmission filter if applicable.

3. Repair Wiring and Connectors

• Sub-steps:
  1. Visually inspect the wiring harness and connectors leading to the TCM and solenoids.
  2. Repair or replace any damaged wires or connectors.
  3. Ensure all connections are secure.

4. Test and Replace Transmission Control Module (if necessary)

• Sub-steps:
  1. If the TCM shows signs of damage, remove it from its mounting location.
  2. Disconnect the wiring harness from the TCM and remove it.
  3. Install the new TCM by reversing the removal steps.
  4. Reconnect the wiring harness and ensure a snug fit.

5. Clear Codes and Test Drive

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Use the OBD-II scanner to clear the P0700 code and any other related codes.
  3. Test drive the vehicle to ensure proper operation of the transmission.

Tools Required:

• OBD-II scanner
• Socket set
• Multimeter
• Torque wrench
• Jack and jack stands

Parts Required:

• Toyota ATF WS transmission fluid
• Transmission filter (if applicable)
• Transmission control module (if necessary)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Disconnect the battery before working on electrical components.
• Allow the engine to cool before inspecting the transmission fluid.