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

Solution

1. Preparation

• Gather necessary tools and parts.
• Park the vehicle on a level surface and engage the parking brake.
• Disconnect the battery to ensure safety while working on electrical components.

2. Check and Replace Transmission Fluid

• Inspect Fluid:

  • Remove the transmission dipstick and check the fluid level and condition.
  • If the fluid is dark or has a burnt smell, it should be replaced.

• Replace Fluid:

  • Use a socket set to remove the transmission pan bolts.
  • Remove the pan carefully to avoid damaging the gasket.
  • Drain the old fluid into a suitable container.
  • Replace the transmission filter if applicable.
  • Reinstall the pan with a new gasket and torque the bolts to manufacturer specifications (typically 7-10 ft-lbs).
  • Refill with the correct type of transmission fluid as specified in the owner’s manual.

3. Inspect and Repair Wiring and Connectors

• Visual Inspection:

  • Examine the wiring harness and connectors leading to the TCM and transmission.
  • Look for frayed wires, corrosion, or loose connections.

• Repair:

  • Repair or replace any damaged wiring or connectors as needed to ensure a solid connection.

4. Replace TCM (if necessary)

• Remove TCM:

  • Locate the TCM, usually found near the transmission or under the dashboard.
  • Disconnect the electrical connectors and remove any mounting bolts using a socket set.

• Install New TCM:

  • Position the new TCM in place and secure it with bolts.
  • Reconnect the electrical connectors ensuring they are seated properly.

5. Reconnect Battery and Clear Codes

• Reconnect the battery terminals.
• Use the OBD-II scanner to clear the P0700 code and any related codes from the system.