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

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a flat surface, and the engine is turned off.
• Disconnect the battery to prevent electrical issues while working.

2. Check Transmission Fluid

• Tools Required: Transmission fluid dipstick, funnel (if adding fluid)
• Remove the transmission dipstick and check the fluid level; add fluid if low.
• Inspect the fluid's color and odor; it should be a bright red and not smell burnt. If it is dark and has a burnt smell, a fluid change is needed.

3. Inspect and Repair Wiring

• Tools Required: Multimeter, wire brush, electrical connectors
• Visually inspect the wiring harness connected to the TCM.
• Use a multimeter to check for continuity and voltage at the TCM connectors.
• Clean any corrosion from connectors and repair any damaged wiring.

4. Test and Replace TCM (if necessary)

• Tools Required: OBD-II scanner, multimeter
• If the TCM fails the function test, replace it with a new unit.
• Reconnect all electrical connections and ensure secure mounting.

5. Replace Transmission Fluid (if necessary)

• Tools Required: Fluid pump, transmission pan gasket, socket set, torque wrench
• Drain the old transmission fluid by removing the transmission pan (use a container to catch the fluid).
• Replace the transmission pan gasket and reinstall the pan, torquing the bolts to the manufacturer's specifications.
• Refill the transmission with the correct type and amount of fluid as specified in the owner’s manual.