how to fix P0700 code in Honda Pilot YF4 (2023-Present)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check Transmission Fluid

• Remove the transmission dipstick and check fluid level; add Honda ATF DW-1 if low.
• If fluid is dark or burnt, drain and replace fluid.
  • Tools Required: Transmission fluid pump, funnel.
  • Safety Warnings: Ensure the vehicle is on a level surface.

3. Repair or Replace TCM

• If diagnostics indicate a faulty TCM:
  1. Locate the TCM, typically found near the transmission or on the driver's side under the dash.
  2. Disconnect the wiring harness from the TCM.
  3. Remove the mounting bolts using a socket set, then take out the TCM.
  4. Install the new TCM by reversing the removal steps.
  5. Reconnect the wiring harness securely.

4. Clear Codes and Test Drive

• Use the OBD-II scanner to clear any stored trouble codes.
• Reconnect the battery, then start the vehicle and perform a test drive to ensure proper transmission operation.