how to fix P0700 transmission code in Honda Accord 10th Generation (2018-2022)

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to ensure safety.
• Raise the vehicle using a jack and secure with jack stands.

2. Inspect and Replace Transmission Fluid

• Tools Required: Transmission fluid pump, fluid catch pan, funnel.
• Remove the transmission fluid drain plug and allow the old fluid to drain completely.
• Reinstall the drain plug and torque to manufacturer specifications.
• Use the transmission fluid pump to add the recommended type of transmission fluid (check owner’s manual for specifications) until it reaches the proper level.

3. Repair or Replace TCM

• Tools Required: Socket set, screwdrivers, multimeter.
• Locate the TCM, usually found near the transmission or under the dashboard.
• Disconnect the electrical connectors from the TCM.
• Remove the TCM by unscrewing the mounting bolts.
• If the TCM is faulty, replace it with a new unit and follow the manufacturer’s guidelines for programming.
• Reconnect the electrical connectors and ensure they are secure.

4. Inspect and Replace Transmission Solenoids (if needed)

• Tools Required: Socket set, torque wrench.
• Remove the transmission pan by unscrewing the bolts and draining any remaining fluid.
• Inspect the solenoids for damage or malfunction.
• Replace any faulty solenoids with new ones, ensuring proper torque specifications are followed upon reassembly.
• Reinstall the transmission pan with a new gasket and torque to specifications.

5. Clear Codes and Test Drive

• Reconnect the negative battery terminal.
• Use the OBD-II scanner to clear any stored codes.
• Start the vehicle and conduct a test drive to verify the repair and ensure smooth shifting.