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

Solution

1. Preparation

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

2. Check Transmission Fluid

• Tools Required: Transmission dipstick or funnel, clean cloth.
• Remove the transmission dipstick (if applicable) and check the fluid level. If low, add the recommended transmission fluid (Honda ATF DW-1).
• Inspect the fluid color and smell; if dark or burnt, a fluid change is necessary.

3. Inspect Wiring and Connectors

• Tools Required: Wire brush, dielectric grease, multimeter.
• Visually inspect the wiring harness connected to the TCM and transmission solenoids for frays or corrosion.
• Clean any corrosion from connectors and apply dielectric grease to prevent future corrosion.
• Ensure all connections are tight and secure.

4. Replace Transmission Control Module (if necessary)

• Tools Required: Socket set, screwdrivers, new TCM.
• Remove the TCM by unscrewing it from its mounting location.
• Disconnect the wiring harness from the TCM.
• Install the new TCM by reversing the removal steps. Ensure all connections are secure.

5. Reset the Error Codes

• Tools Required: OBD-II scanner.
• Reconnect the battery and use the OBD-II scanner to clear any stored codes from the vehicle’s computer.
• Start the engine and let it idle to ensure the check engine light does not reappear.