how to fix P0700 code on Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Gather tools and parts needed.
• Disconnect the negative battery terminal to ensure safety.
• Allow the vehicle to cool down if it has been running.

2. Check and Replace Transmission Fluid

• Sub-steps:

  1. Locate the transmission dipstick (if equipped) and remove it.
  2. Check the fluid level; add the appropriate type of transmission fluid (consult owner’s manual for specifications) if low.
  3. If fluid is contaminated, proceed to a complete fluid change.

• Tools Required: Transmission fluid pump, funnel, drain pan, socket set.

3. Inspect and Repair Wiring

• Sub-steps:

  1. Visually inspect the wiring harness connected to the TCM and transmission for signs of wear or damage.
  2. Repair any damaged wires using solder and heat-shrink tubing or replace the affected harness.
  3. Ensure that all connectors are secure and free from corrosion.

• Tools Required: Wire stripper/crimper, multimeter, soldering iron.

4. Replace the Transmission Control Module (if necessary)

• Sub-steps:

  1. Locate the TCM, usually found near the transmission or under the dashboard.
  2. Disconnect the electrical connectors from the TCM.
  3. Remove the mounting bolts and take out the old TCM.
  4. Install the new TCM, ensuring all connections are secure.
  5. Reconnect the negative battery terminal.

• Tools Required: Socket set, screwdrivers.

5. Clear Codes and Test

• Sub-steps:
  1. Use the OBD-II scanner to clear the P0700 code and any related codes.
  2. Conduct a road test to ensure the transmission operates smoothly and monitor for any warning lights.