how to diagnose P0700 code in Ford F-150 13th Generation (2015-2020)

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, transmission fluid, funnel, jack stands.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Lift the vehicle securely using jack stands.
  2. Remove the transmission pan (if necessary) using a socket set.
  3. Drain the old transmission fluid into a suitable container.
  4. Replace the transmission filter if applicable.
  5. Reinstall the transmission pan with a new gasket, torquing bolts to manufacturer specifications.
  6. Refill the transmission with new fluid using a funnel.

3. Repair or Replace Defective Components

• Sub-steps:
  1. If any wiring or connectors were found damaged during inspection, repair or replace them.
  2. If the TCM is faulty, remove it (usually secured with bolts) and replace it with a new unit, ensuring to reconnect all harness connectors.
  3. If internal transmission components are failing, consult a professional for a rebuild or replacement.

4. Clear Codes and Reset System

• Sub-steps:
  1. Reconnect the negative battery terminal.
  2. Use the OBD-II scanner to clear the P0700 code and any other related codes.