how to fix Honda Accord 8th Generation (2008-2012) P0700 transmission code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Ensure the vehicle is on a level surface and safely supported with jack stands.

2. Inspect and Replace Transmission Fluid

• Remove the transmission dipstick and check fluid level.
• If low, add the manufacturer-recommended transmission fluid (Honda ATF-Z1 or compatible).
• If the fluid is burnt or dirty, proceed to drain the transmission fluid.
  • Tools Required: Socket set, drain pan, funnel.
  • Sub-steps:
    1. Place a drain pan under the transmission pan.
    2. Remove the drain plug and allow old fluid to drain completely.
    3. Replace the drain plug and tighten to the manufacturer’s torque specification (typically around 20-25 ft-lbs).
    4. Refill with new transmission fluid through the dipstick tube.

3. Inspect and Replace Transmission Filter

• If equipped, remove the transmission pan to access the filter.
  • Tools Required: Socket set, gasket scraper, torque wrench.
  • Sub-steps:
    1. Remove the bolts securing the transmission pan and carefully lower it.
    2. Remove the old transmission filter and replace it with a new one.
    3. Clean the mating surfaces and install a new pan gasket.
    4. Reinstall the transmission pan and torque bolts to manufacturer specifications (typically around 8-10 ft-lbs).

4. Reconnect Electrical Connectors

• Ensure all electrical connectors to the TCM and transmission range sensor are securely connected.
  • Tools Required: No specific tools, just visual inspection.
  • Sub-steps:
    1. Inspect and clean any corrosion from connectors.
    2. Reconnect any loose connectors securely.

5. Test Drive

• Reconnect the battery terminal and start the engine.
• Test drive the vehicle to ensure proper shifting and absence of warning lights.