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

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the negative battery terminal.

2. Check and Change Transmission Fluid

• Tools Required: Transmission fluid pump, funnel, socket set.
• Remove the transmission fluid dipstick and check the level; add fluid if low.
• If fluid is dirty or burnt, drain the old transmission fluid using a pump.
• Replace with new, manufacturer-recommended transmission fluid.
  • Sub-step: Use a funnel to refill the transmission through the dipstick tube.

3. Inspect and Repair Wiring/Connectors

• Tools Required: Multimeter, wire brush, dielectric grease.
• Inspect the harness and connectors for any frayed wires or corrosion.
• Clean connectors with a wire brush and apply dielectric grease to prevent future corrosion.
• Repair or replace damaged wiring as necessary.

4. Check Transmission Range Sensor

• Tools Required: Multimeter, socket set.
• Locate the transmission range sensor and disconnect the electrical connector.
• Use a multimeter to test the sensor’s resistance according to specifications.
• If faulty, replace the sensor following manufacturer guidelines.

5. Reconnect Battery and Test Drive

• Reconnect the negative battery terminal.
• Start the vehicle and allow it to reach operating temperature.
• Take the car for a test drive to ensure smooth shifting and monitor for check engine light.