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

Solution

1. Preparation

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

2. Check Transmission Fluid

• Tools Required: Transmission dipstick, funnel, new transmission fluid (if necessary).
• Remove the transmission dipstick and check the fluid level. If low, add the manufacturer-recommended transmission fluid.
• Inspect fluid for discoloration or burnt smell; if found, plan for a fluid change.

3. Inspect and Repair Wiring

• Tools Required: Multimeter, wire stripper/crimper.
• Visually inspect the wiring harness connected to the TCM for any signs of wear, corrosion, or damage.
• Use a multimeter to test continuity in the wiring. Repair or replace any damaged wiring.

4. Replace Transmission Control Module (if necessary)

• Tools Required: Socket set, torque wrench.
• Locate the TCM, which is typically found near the transmission or under the dashboard.
• Remove the TCM by unscrewing the bolts and disconnecting the wiring harness.
• Install the new TCM by reversing the removal process. Torque the bolts to manufacturer specifications.

5. Clear Codes

• Tools Required: OBD-II scanner.
• Reconnect the battery and use the OBD-II scanner to clear the P0700 code.
• Verify that the code does not reappear after repair.