how to diagnose Honda Civic 9th Generation (2012-2015) P0700 transmission code

Solution

1. Preparation

• Ensure the vehicle is parked on a level surface and securely supported.
• Disconnect the battery to prevent electrical shorts.
• Gather necessary tools and parts.

2. Check and Replace Transmission Fluid

• Tools Required: Socket set, transmission funnel, fluid pump (if necessary)
• Remove the transmission drain plug and drain the old fluid into a suitable container.
• Replace the drain plug and tighten to the manufacturer’s specified torque (typically around 33 lb-ft).
• Refill the transmission with the correct type of fluid (Honda ATF-Z1 or equivalent) using a funnel.

3. Inspect and Repair Wiring

• Tools Required: Multimeter, wire stripper, soldering kit (if necessary)
• Visually inspect the wiring harness for the transmission control module and repair any damaged wires.
• Use a multimeter to check continuity and resistance along the wiring, ensuring no breaks or shorts.

4. Replace Transmission Control Module (if necessary)

• Tools Required: Socket set, torque wrench
• Remove any components obstructing access to the TCM.
• Disconnect the TCM connectors and remove the TCM from its mounting.
• Install the new TCM and reconnect the connectors, ensuring they are secure.
• Reinstall any components removed during access and torque to the manufacturer’s specifications.

5. Reconnect Battery and Test Drive

• Reconnect the battery terminals.
• Start the engine and allow it to reach operating temperature.
• Test drive the vehicle to check for proper shifting and ensure the check engine light does not illuminate.