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

Solution

1. Preparation

• Gather necessary tools and equipment.
• Disconnect the negative battery terminal to ensure safety.
• Raise the vehicle and secure it on jack stands.

2. Inspect and Replace Transmission Fluid

1. Remove the transmission fluid dipstick and check fluid condition.
   • Tools Required: Funnel, rags.
2. If fluid is low or burnt, drain the transmission fluid using the drain plug.
3. Replace with the manufacturer-recommended transmission fluid (e.g., Mercon LV).
   • Tools Required: Fluid pump, new fluid.
4. Reinstall the drain plug and refill the transmission with new fluid to the specified level.

3. Inspect and Repair Wiring and Connectors

1. Visually inspect the wiring harness and connectors connected to the TCM for any damage or corrosion.
2. If any issues are found, repair or replace the damaged wiring or connectors.
   • Tools Required: Wire strippers, soldering iron, heat shrink tubing.
3. Ensure all connections are secure.

4. Test and Replace Transmission Control Module (if needed)

1. Use a multimeter to test the TCM for correct voltage and continuity.
2. If the TCM is faulty, remove the old module.
   • Tools Required: Socket set.
3. Install the new TCM and ensure it is properly connected.
4. Reconnect the negative battery terminal.

5. Transmission Range Sensor Inspection

1. Locate the transmission range sensor and inspect it for proper alignment and functionality.
2. Replace it if it is malfunctioning.
   • Tools Required: Socket set, screwdriver.
3. Reconnect any connectors and secure the sensor.