how to fix P0700 transmission trouble code in Ford F-150 14th Generation (2021-2024)

Solution

1. Preparation

• Ensure the vehicle is parked on a flat surface and the engine is turned off.
• Gather tools and parts required for the repair.

2. Addressing Transmission Fluid Issues

• Check Fluid Level:

  • Remove the transmission dipstick and wipe it clean.
  • Reinsert the dipstick and remove it again to check the fluid level.
  • Add the appropriate transmission fluid if low (Ford Mercon LV).

• Change Transmission Fluid and Filter (if necessary):

  • Raise the vehicle using jack stands.
  • Drain the old transmission fluid by removing the drain plug or pan.
  • Remove the transmission pan and replace the filter.
  • Reinstall the transmission pan with a new gasket, tightening bolts to the manufacturer’s torque specifications.

3. Repairing or Replacing TCM

• Disconnect Battery:

  • Disconnect the negative battery terminal to prevent electrical shock.

• Remove TCM:

  • Locate the TCM, usually mounted near the transmission or under the dashboard.
  • Disconnect the wiring harness from the TCM.
  • Remove the mounting bolts and take out the TCM.

• Install New TCM (if applicable):

  • Position the new TCM and secure it with the mounting bolts.
  • Reconnect the wiring harness ensuring a snug fit.

4. Reconnect Battery and Test

• Reconnect the negative battery terminal.
• Start the engine and check for any new or returning trouble codes.