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

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to ensure safety while working on the electrical components.

2. Transmission Fluid Inspection

• Tools Required: Fluid extraction tool (if necessary), funnel.
• Check the transmission fluid level using the dipstick. If low, add the appropriate Honda ATF DW-1 fluid.
• If the fluid is dark or has a burnt smell, proceed to change the transmission fluid and filter.
• Sub-steps:
  • Remove the transmission drain plug and drain the old fluid into a suitable container.
  • Replace the transmission filter if applicable.
  • Reinstall the drain plug and fill with new Honda ATF DW-1 fluid to the correct level.

3. TCM Inspection

• Tools Required: Multimeter.
• Reconnect the battery and test the TCM.
• Sub-steps:
  • Use a multimeter to check the voltage at the TCM connector while the ignition is ON. Compare readings to specifications in the service manual.
  • If there is no power, trace the wiring back to the fuse and battery.

4. Repair or Replace Components

• If faulty, replace the transmission range sensor or TCM as necessary.
• Sub-steps:
  • For the TCM, disconnect the wiring harness and remove the mounting bolts. Install the new TCM and reconnect the harness.
  • For the transmission range sensor, locate it on the transmission, disconnect the wiring, and remove the mounting bolts. Install the new sensor and reconnect the wiring.

5. Final Checks

• Clear the codes from the OBD-II scanner.
• Reconnect the negative battery terminal.