how to fix P0700 code on Honda Accord 9th Generation (2013-2017)

Solution

1. Preparation

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

2. Check Transmission Fluid

• Remove the transmission fluid dipstick and check the fluid level.
• If fluid is low, add the recommended type of transmission fluid (Honda ATF-Z1 or equivalent).
• If the fluid is dark or smells burnt, consider a transmission fluid change.

3. Inspect and Repair Wiring

• Visually inspect the wiring harness connected to the TCM and transmission solenoids.
• Repair any damaged wires or corroded connectors using solder and heat shrink tubing.
• Ensure all connections are secure and free of debris.

4. Replace Transmission Solenoids (if necessary)

• Remove the transmission pan to access the solenoids.
• Unplug the solenoid connectors and remove the retaining bolts.
• Replace the faulty solenoids with new ones, ensuring proper alignment.
• Reinstall the transmission pan with a new gasket, torquing the bolts to the manufacturer's specifications.

5. Reprogram TCM (if applicable)

• If any software updates are available, follow the manufacturer’s procedure to reprogram the TCM using a compatible scan tool.
• Perform a transmission adaptation procedure if required.

6. Reconnect Battery and Test

• Reconnect the battery and start the engine.
• Clear any stored trouble codes using the OBD-II scanner.
• Perform a test drive to ensure the vehicle shifts smoothly and the check engine light remains off.