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

Solution

1. Preparation

• Gather all necessary tools and parts.
• Ensure the vehicle is parked on a flat surface and the engine is off.
• Disconnect the battery to avoid electrical shorts.

2. Inspect and Replace Transmission Fluid

• Sub-steps:

  1. Locate the transmission fluid dipstick and remove it.
  2. Check the fluid level; if it's low, add the recommended type of transmission fluid (typically Toyota ATF WS).
  3. If the fluid is contaminated or burnt, drain the transmission pan and replace the fluid.
  4. Replace the transmission filter if applicable.

• Tools Required:

  • Socket set
  • Fluid pump
  • Transmission fluid

3. Repair or Replace Wiring and Connectors

• Sub-steps:

  1. Inspect the wiring harness connected to the transmission for any frayed wires.
  2. Clean any corrosion on connectors with electrical contact cleaner.
  3. If damaged, cut the affected section and splice in new wiring or replace the connector.

• Tools Required:

  • Wire cutters/strippers
  • Electrical tape
  • Soldering iron (if splicing wires)

4. Test or Replace Transmission Control Module

• Sub-steps:

  1. Use a multimeter to test the voltage and ground outputs from the transmission control module.
  2. If the module fails testing, remove it from the vehicle by disconnecting the connectors and unbolting it.
  3. Install the new module by reversing the removal steps.

• Tools Required:

  • Multimeter
  • Socket set