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

Solution

1. Preparation

• Tools Required: OBD-II scanner, socket set, multimeter, fluid pump, transmission fluid, torque wrench.
• Ensure the vehicle is on a flat surface and the engine is off. Disconnect the battery to prevent electrical shock.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Remove the transmission drain plug using a socket set and drain the old fluid into a suitable container.
  2. Inspect the fluid for discoloration or debris. Replace with new transmission fluid if necessary (consult owner's manual for specifications).
  3. Reinstall the drain plug and torque to manufacturer specifications.

3. Inspect and Repair Wiring/Connectors

• Sub-steps:
  1. Visually inspect wiring harnesses and connectors for any signs of wear, fraying, or corrosion.
  2. Use a multimeter to check for continuity and voltage at the TCM connector.
  3. Repair or replace any damaged wiring or connectors as needed.

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

• Sub-steps:
  1. If the wiring is intact and the fluid is in good condition, check the TCM for faults.
  2. If diagnostics indicate TCM failure, remove the old TCM by disconnecting the harness and unbolting it.
  3. Install the new TCM, ensuring all connections are secure and correctly aligned. Torque the bolts to specifications.

5. Reconnect Battery and Clear Codes

• Reconnect the battery and use the OBD-II scanner to clear any stored codes.