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

Solution

1. Preparation

• Gather the necessary tools and parts.
• Disconnect the vehicle battery to prevent any electrical shorts.
• Ensure the vehicle is on a flat surface and securely raise it with jack stands if access to the transmission is necessary.

Tools Required:

• OBD-II scanner
• Multimeter
• Socket set
• Torque wrench
• Transmission fluid pump

2. Inspect and Repair Wiring

• Sub-steps:
  1. Visually inspect the wiring harness and connectors leading to the TCM for signs of wear or damage.
  2. Repair any damaged wires or connectors using electrical tape or heat shrink tubing.
  3. Ensure all connections are tight and secure.

3. Check and Change Transmission Fluid

• Sub-steps:
  1. Locate the transmission fluid dipstick and check the fluid level.
  2. If low, add the appropriate type of transmission fluid (consult owner’s manual for specifications).
  3. If fluid is dark or burnt, perform a transmission fluid change:
     • Remove the transmission fluid pan using a socket set.
     • Replace the transmission filter if applicable.
     • Clean the pan and reinstall it with a new gasket, tightening bolts to the specified torque.
     • Refill the transmission with new fluid using a transmission fluid pump.

4. TCM Replacement (if necessary)

• Sub-steps:
  1. If diagnostics confirm TCM failure, locate the TCM, usually found near the transmission or under the dashboard.
  2. Disconnect the wiring harness from the TCM.
  3. Remove mounting screws and take out the old TCM.
  4. Install the new TCM, securing it with screws and reconnecting the harness.
  5. Reconnect the vehicle battery.