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

Solution

1. Preparation

• Gather tools: OBD-II scanner, multimeter, socket set, fluid catch pan, funnel, and replacement transmission fluid.
• Ensure the vehicle is on a flat surface and the engine is cool.

2. Fluid Inspection and Replacement

1. Check Transmission Fluid Level

   • Locate the transmission dipstick (if equipped) and pull it out. Wipe clean and reinsert to check the level.
   • If low, remove the fill plug and add the recommended transmission fluid until it reaches the correct level.
   • Tools Required: Funnel, fluid catch pan.

2. Inspect Fluid Condition

   • If the fluid is dark, burnt, or smells bad, it needs to be replaced.
   • Drain the old transmission fluid using the drain plug (if equipped).
   • Replace the fluid with manufacturer-recommended transmission fluid.
   • Tools Required: Socket set, catch pan.
   • Safety Warnings: Allow the engine to cool before draining fluid.

3. Wiring and Connector Inspection

1. Inspect Wiring Harness

   • Examine the wiring harness connected to the transmission for any frayed wires or broken connectors.
   • If damaged, repair or replace the wiring as necessary.

2. Check Connectors

   • Ensure that all connectors are securely connected and free from corrosion. Clean or replace as needed.

4. TCM Testing or Replacement

1. Test TCM
   • Using a multimeter, check the TCM for power and ground signals.
   • If the TCM is not functioning correctly, replace it following manufacturer specifications.

5. Clear Codes and Test Drive

1. Clear DTCs

   • Use the OBD-II scanner to clear the P0700 code from the vehicle’s computer.

2. Test Drive

   • Drive the vehicle under various conditions to ensure the transmission shifts smoothly and the check engine light does not reappear.