how to fix P0700 code in Honda Pilot YF3 (2016-2022)

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and the engine is turned off.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Gather necessary tools and parts (see Tools Required and Parts Required sections).

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Remove the transmission fluid dipstick and check the fluid level.
  2. If the fluid is low, add the appropriate Honda ATF-Z1 or DW-1 fluid until it reaches the correct level.
  3. If the fluid is dark or has a burnt smell, proceed to drain and replace it.
  4. To drain, remove the transmission pan bolts and carefully lower the pan, allowing fluid to drain completely.
  5. Clean the pan and replace the filter if applicable.
  6. Reinstall the pan with a new gasket and torque bolts to the manufacturer’s specifications (approximately 8-10 ft-lbs).

3. Check and Repair Wiring/Connections

• Sub-steps:
  1. Inspect all wiring harnesses and connectors for signs of wear, fraying, or corrosion.
  2. Repair or replace any damaged wires or connectors as necessary.
  3. Ensure all connections to the TCM are secure.

4. TCM Diagnosis and Replacement

• Sub-steps:
  1. If no wiring issues are found, connect the OBD-II scanner to recheck for TCM-related codes.
  2. If the TCM is suspected to be faulty, remove the TCM by unscrewing its mounting bolts and disconnecting the electrical connectors.
  3. Install the new TCM, ensuring all connections are tight and secure.
  4. Reconnect the battery terminal.