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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Raise the vehicle using jack stands for easier access to the transmission.

2. Addressing Transmission Fluid Issues

• Tools Required: Fluid pump, transmission fluid, funnel
• Check the transmission fluid level; if low, add the appropriate type of transmission fluid as specified in the owner’s manual.
• If the fluid is dirty or burnt, perform a transmission fluid change:
  1. Remove the transmission drain plug and drain the old fluid into a suitable container.
  2. Replace the drain plug and torque it to the manufacturer’s specifications.
  3. Using a fluid pump, refill the transmission with new fluid through the dipstick tube or designated fill location.

3. Repairing Electrical Issues

• Tools Required: Multimeter, screwdriver, wire brush
• Inspect the wiring harness and connectors:
  1. Disconnect the wiring harness from the TCM and visually inspect for signs of wear or corrosion.
  2. Use a multimeter to test for continuity and proper voltage supply to the TCM.
  3. Clean any corroded connectors with a wire brush and reconnect securely.

4. Replacing the Transmission Control Module (if necessary)

• Tools Required: Socket set, torque wrench
• If the TCM is faulty:
  1. Remove any protective covers to access the TCM.
  2. Disconnect the wiring harness from the TCM.
  3. Unscrew the TCM from its mounting location and remove it.
  4. Install the new TCM, securing it with screws and reconnecting the wiring harness.
  5. Replace any protective covers.

5. Reconnect Battery and Clear Codes

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear any stored codes, including P0700.