how to fix P0700 code on Toyota Corolla E140 (2006-2013)

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Transmission Fluid Inspection

• Tools Required: Transmission fluid dipstick, funnel, new transmission fluid (if necessary).
• Check the transmission fluid level using the dipstick. If low, add the appropriate type of transmission fluid as specified in the owner's manual.
• If the fluid is dark or has a burnt smell, drain the fluid and replace it with new fluid.

3. Wiring and Connector Inspection

• Tools Required: Multimeter, screwdriver.
• Visually inspect the wiring harness and connectors leading to the TCM. Look for frayed wires, signs of corrosion, or loose connections.
• Use the multimeter to check for continuity in the wiring. Repair or replace any damaged wires or connectors.

4. TCM Testing

• Tools Required: Multimeter.
• Locate the TCM, which is typically found near the transmission or under the dashboard.
• Disconnect the TCM and test the input/output signals using a multimeter. Refer to the service manual for specific voltage and resistance values.
• If the TCM fails the test, replace it with a new unit.

5. Inspecting the Transmission Range Sensor

• Tools Required: Socket set, screwdriver.
• Locate the transmission range sensor on the transmission.
• Ensure it is properly aligned and all bolts are tight. Adjust if necessary.
• If faulty, replace the sensor according to the manufacturer’s specifications.

6. Reassembly and Reconnection

• Reconnect all wiring and connectors.
• Reconnect the negative battery terminal.
• Start the vehicle and check for any error codes.