how to fix P0700 code on Ford F-150 12th Generation (2009-2014)

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, transmission fluid pump, funnel.
• Ensure the vehicle is parked on a level surface and the engine is off. Disconnect the negative battery terminal to prevent electrical shorts.

2. Check Transmission Fluid

• Remove the transmission dipstick and check the fluid level. If low, add the correct type of transmission fluid (check owner's manual for specifications).
• If fluid is dark, burnt, or contaminated, consider a complete fluid change.
• Use a transmission fluid pump to drain and refill the transmission fluid as needed.

3. Inspect Wiring and Connectors

• Visually inspect the wiring harness connected to the TCM for wear, fraying, or corrosion.
• Use a multimeter to check for continuity in the wiring. Repair or replace any damaged wires or connectors.

4. Test the Transmission Range Sensor

• Locate the transmission range sensor and disconnect the electrical connector.
• Using a multimeter, check the sensor for the proper voltage and resistance per the manufacturer specifications. Replace the sensor if it fails the test.

5. Reset the TCM

• Reconnect the battery terminal and start the vehicle.
• Use the OBD-II scanner to clear the P0700 code and any other related codes. This may require a test drive to confirm the repair.

6. Final Inspection

• After performing the above steps, conduct a test drive to ensure proper shifting and operation of the transmission.
• Monitor for any reoccurrence of the P0700 code or related symptoms.