how to fix P0700 code in Honda Civic 10th Generation (2016-2021)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative terminal of the battery to prevent electrical shorts.
• Ensure the vehicle is on a level surface and securely supported.

2. Check and Refill Transmission Fluid

• Tools Required: Transmission fluid pump, funnel, socket set.
• Sub-steps:
  1. Locate the transmission dipstick or fill plug.
  2. Remove the dipstick or fill plug and check fluid level.
  3. If low, use a pump and funnel to add the appropriate transmission fluid (refer to owner’s manual for specifications).
  4. Recheck the fluid level after adding.

3. Inspect and Repair Wiring

• Tools Required: Multimeter, wire harness repair kit, electrical tape.
• Sub-steps:
  1. Visually inspect the wiring harness leading to the TCM for any signs of wear or damage.
  2. Use a multimeter to check for continuity in the wiring.
  3. Repair or replace any damaged wires, ensuring all connections are secure.

4. Replace Transmission Control Module (if necessary)

• Tools Required: Socket set, Torx screwdriver.
• Sub-steps:
  1. Remove the mounting bolts securing the TCM.
  2. Disconnect the electrical connectors from the TCM.
  3. Install the new TCM by connecting the electrical connectors and securing it with bolts.
  4. Reconnect the battery terminal.

5. Clear Codes and Test Drive

• Tools Required: OBD-II scanner.
• Sub-steps:
  1. Use an OBD-II scanner to clear the P0700 code.
  2. Test drive the vehicle to ensure proper shifting and check for any reoccurring codes.