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

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Allow the vehicle to cool down if it has been running.

2. Address Transmission Fluid Issues

• Check Fluid Level:

  • Locate the transmission dipstick.
  • Remove the dipstick and wipe it clean; reinsert and remove it again to check fluid level.
  • If low, add the appropriate transmission fluid (Honda ATF DW-1) through the dipstick tube until it reaches the full mark.

• Change Transmission Fluid:

  • Raise the vehicle and secure it on jack stands.
  • Remove the transmission drain plug and drain the old fluid into a container.
  • Replace the drain plug and torque it to manufacturer specifications (usually around 30 lb-ft).
  • Refill with new Honda ATF DW-1 fluid through the dipstick tube, checking fluid level as you go.

3. Inspect and Repair Wiring

• Check Wiring Harness:
  • Visually inspect the wiring harness for signs of wear, fraying, or damage.
  • Clean any corroded connectors with electrical contact cleaner.
  • Repair any damaged wires using appropriate splicing techniques or replace the harness if severely damaged.

4. Test Transmission Control Module (TCM)

• Replace TCM (if necessary):
  • Locate the TCM, typically found near the transmission.
  • Disconnect the electrical connector from the TCM.
  • Remove mounting bolts and take out the TCM.
  • Install the new TCM, torque bolts to specifications, and reconnect the electrical connector.

5. Clear Codes and Test

• Reconnect the negative battery terminal.
• Use an OBD-II scanner to clear any stored codes.
• Test drive the vehicle to ensure proper shifting and functionality.