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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts.
• Ensure the vehicle is on a flat surface and secure it with wheel chocks.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick and remove it.
  2. Using a funnel, add the correct type of transmission fluid (refer to the owner's manual for specifications).
  3. Start the engine and cycle through the gears while checking the fluid level again.
  4. If the fluid is dirty or burnt, drain and replace it using a transmission fluid pump.
  5. Dispose of old fluid properly.

3. Inspect and Repair Wiring/Connectors

• Sub-steps:
  1. Remove the TCM cover to access the wiring harness.
  2. Inspect for frayed wires, broken connectors, or corrosion.
  3. Repair or replace any damaged wiring or connectors as necessary.
  4. Secure all connections and ensure they are properly seated.

4. Replace Transmission Control Module (if necessary)

• Sub-steps:
  1. Unplug the wiring harness from the TCM.
  2. Remove the mounting screws and take out the old TCM.
  3. Install the new TCM in the reverse order, ensuring it is securely mounted.
  4. Reconnect the wiring harness.

5. Reassess and Reconnect Battery

• Sub-steps:
  1. Reconnect the vehicle battery.
  2. Clear any stored codes using an OBD-II scanner.
  3. Start the engine and check for any warning lights.