how to fix P0740 code on my Honda Pilot YF3 (2016-2022)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Raise the vehicle on jack stands and ensure it is securely supported.

2. Inspect and Replace TCC Solenoid

• Tools Required: Socket set, torque wrench, multimeter
• Sub-steps:
  1. Locate the transmission pan and remove the bolts using a socket set.
  2. Carefully lower the transmission pan and drain the fluid into a suitable container.
  3. Remove the old TCC solenoid from its mounting location.
  4. Install the new TCC solenoid, ensuring it is seated properly.
  5. Reinstall the transmission pan, applying a new gasket and tightening the bolts to the manufacturer’s torque specifications.

3. Check and Replace Transmission Fluid

• Sub-steps:
  1. Clean the transmission pan before reinstallation.
  2. Refill the transmission with the appropriate type and amount of fluid as specified in the owner’s manual.
  3. Start the engine and let it idle, shifting through all gears to circulate the new fluid.
  4. Recheck the fluid level and top off if necessary.

4. Clear Codes and Test Drive

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Use the OBD-II scanner to clear the P0740 code.
  3. Conduct a test drive to monitor for any reoccurrence of the code or related symptoms.