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

Solution

1. Preparation

• Gather tools and necessary parts.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick and remove it.
  2. Check the fluid level; if low, add the appropriate Honda ATF fluid.
  3. If the fluid is contaminated or burnt, drain the old fluid by removing the transmission drain plug.
  4. Replace the drain plug and refill with new fluid, following the manufacturer’s specifications (consult owner’s manual for capacity).
• Tools Required: Transmission fluid pump, socket set, funnel.
• Safety Warnings: Ensure the engine is off and cool before working on the transmission.

3. Repair or Replace the Transmission Control Module (if needed)

• Sub-steps:
  1. Remove any covers or brackets obstructing access to the TCM.
  2. Disconnect the wiring harness from the TCM.
  3. Remove the TCM mounting screws and carefully take out the module.
  4. Install the new TCM in the reverse order of removal and reconnect the wiring harness.
  5. Reinstall any covers or brackets.
• Tools Required: Socket set, Torx driver (if applicable).
• Safety Warnings: Disconnect the battery before starting work on electrical components.

4. Reconnect Battery and Test Drive

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Start the engine and check for any warnings on the dashboard.
  3. Conduct a test drive to assess the transmission's operation and monitor for the return of the P0700 code.
• Tools Required: None specific.