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

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, socket set, torque wrench, fluid transfer pump.
• Ensure the vehicle is on a level surface and the engine is off.
• Disconnect the battery to prevent electrical shorts.

2. Check and Replace Transmission Fluid

• Remove the transmission dipstick and inspect fluid color and level.
• If fluid is low or contaminated, use a fluid transfer pump to drain the transmission fluid.
• Replace with the manufacturer-recommended transmission fluid (typically Honda ATF DW-1).
• Refill the transmission with the new fluid until the correct level is reached.

3. Inspect TCM and Wiring

• Locate the TCM under the dash or in the engine bay.
• Disconnect the TCM connector and inspect for corrosion or damage.
• Use a multimeter to check the voltage and grounding of the TCM harness.
• If damage is found, repair or replace the wiring as necessary.

4. Replace Faulty Components

• If the TCM is determined to be faulty, remove it by unscrewing the mounting bolts.
• Replace it with a new or refurbished TCM, ensuring it is compatible with the Honda Pilot YF3.
• Torque the mounting bolts to the manufacturer’s specifications (typically 7-10 ft-lbs).

5. Reassemble and Test

• Reconnect the battery and all connectors.
• Start the vehicle and allow it to reach operating temperature.
• Clear the P0700 code using the OBD-II scanner.
• Take the vehicle for a test drive to ensure proper operation and shifting.