how to fix the P0700 code in my Toyota Corolla E140 (2006-2013)

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Ensure the vehicle is parked on a level surface, and the engine is turned off.
• Disconnect the battery to prevent electrical shorts.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Remove the transmission fill plug using a socket wrench.
  2. Use a fluid pump to extract old transmission fluid.
  3. Inspect the fluid condition; if dirty or burnt, replace with new fluid.
  4. Refill the transmission using the manufacturer's recommended fluid specification.
• Tools Required: Fluid pump, socket wrench, funnel
• Safety Warnings: Allow the engine to cool before handling the transmission fluid.

3. Check and Repair Wiring and Connectors

• Sub-steps:
  1. Inspect the wiring harness connected to the transmission for any visible damage or corrosion.
  2. Repair or replace any damaged wires or connectors as needed, ensuring a secure connection.
  3. Use dielectric grease on connectors to prevent future corrosion.
• Tools Required: Wire strippers, electrical tape, dielectric grease

4. Replace Transmission Range Sensor

• Sub-steps:
  1. Locate the transmission range sensor on the transmission housing.
  2. Disconnect the electrical connector and remove the mounting bolts.
  3. Install the new range sensor and secure it with bolts.
  4. Reconnect the electrical connector.
• Tools Required: Socket set, screwdriver
• Safety Warnings: Ensure the battery is disconnected during this procedure.

5. Reconnect Battery and Test Drive

• Sub-steps:
  1. Reconnect the negative terminal of the battery.
  2. Start the engine and allow it to warm up.
  3. Test drive the vehicle to ensure proper shifting and functionality.
• Tools Required: None
• Safety Warnings: Be cautious of moving parts while reconnecting the battery.