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

Solution

1. Preparation

• Gather tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is cool.
• Disconnect the battery to prevent electrical shock.

2. Check and Replace Transmission Fluid

• Sub-steps:

  1. Locate the transmission dipstick and remove it.
  2. Check fluid level; if low, add the recommended Honda ATF-Z1 fluid to the proper level.
  3. If fluid is dark or burnt, drain and replace the fluid.
  4. Reconnect the dipstick and ensure it is seated properly.

• Tools Required: Funnel, transmission fluid pump, container for fluid.

3. Inspect and Repair Wiring/Connectors

• Sub-steps:

  1. Visually inspect wiring harness connected to the TCM and transmission.
  2. Repair or replace any frayed or damaged wires.
  3. Clean and secure connectors to ensure good contact.

• Tools Required: Wire strippers, electrical tape, dielectric grease.

4. Replace Transmission Range Sensor (if faulty)

• Sub-steps:

  1. Locate the transmission range sensor on the side of the transmission.
  2. Disconnect the electrical connector and unbolt the sensor.
  3. Install the new sensor and reconnect the electrical connector.
  4. Ensure it is properly aligned and secure.

• Tools Required: Socket set, torque wrench.

5. Reconnect Battery and Clear Codes

• Sub-steps:
  1. Reconnect the battery terminals.
  2. Use the OBD-II scanner to clear the P0700 code.
  3. Start the vehicle and check for any reoccurrences of the check engine light.