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

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the negative battery terminal to prevent electrical shorts.
• Raise the vehicle using jack stands if necessary for better access to the transmission.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission fluid pan and remove the drain plug or pan bolts.
  2. Allow the old fluid to drain completely into a suitable container.
  3. Inspect the old fluid for metal shavings or debris; if present, further inspection of the transmission may be necessary.
  4. Replace with the manufacturer-recommended transmission fluid (consult owner’s manual for specifications).
  5. Reinstall the drain plug or transmission pan and torque to the manufacturer’s specifications.

3. Repair or Replace Wiring and Connectors

• Sub-steps:
  1. Visually inspect the wiring harness for frayed wires, corrosion, or loose connections.
  2. If damaged, repair the wiring using electrical tape or heat shrink tubing.
  3. For severely damaged harnesses, replace the harness with a new OEM part.
  4. Ensure all connectors are clean and securely attached.

4. Test and Replace Transmission Control Module (If Necessary)

• Sub-steps:
  1. Using the multimeter, check the TCM for proper voltage and ground.
  2. If readings are out of specification, consider replacing the TCM.
  3. Remove the faulty TCM by disconnecting the electrical connectors and unbolting it from its mounting location.
  4. Install the new TCM and reconnect all electrical connectors.

5. Reconnect Battery and Clear Codes

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Use the OBD-II scanner to clear the P0700 code and any other related codes.
  3. Ensure no new codes reappear after clearing.