what does it mean if my Toyota Highlander has a P0700 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Allow the vehicle to cool down if it has been running.

2. Fluid Inspection

• Sub-steps:
  1. Remove the transmission dipstick (if applicable).
  2. Check the fluid level; add fluid if low.
  3. Inspect the fluid for contamination (burnt smell or dark color) and change if necessary.

3. Wiring and Connector Check

• Sub-steps:
  1. Visually inspect the wiring harness leading to the TCM and transmission.
  2. Disconnect the connectors and check for corrosion or bent pins.
  3. Use a multimeter to test for continuity in the wiring.

4. Transmission Range Sensor Testing

• Sub-steps:
  1. Locate the transmission range sensor on the transmission.
  2. Disconnect the sensor and use a multimeter to check resistance values against specifications.
  3. Replace the sensor if it does not meet specifications.

5. Clear Codes and Test Drive

• Sub-steps:
  1. Reconnect the battery terminal.
  2. Use the OBD-II scanner to clear the codes.
  3. Perform a test drive to ensure the issue is resolved.