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

Solution

1. Preparation

• Gather tools and parts needed for the repair.
• Disconnect the battery to ensure safety while working on electrical components.
• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, and basic hand tools.

2. Inspect and Replace Transmission Fluid

• Check Fluid Level: Use the dipstick to ensure fluid is at the correct level.
• Replace Fluid: If the fluid is contaminated or burnt, drain the old fluid and replace it with new, manufacturer-recommended transmission fluid.
  • Sub-steps:
    1. Raise the vehicle and secure it on jack stands.
    2. Locate the transmission drain plug and remove it to drain the fluid.
    3. Replace the drain plug and tighten to manufacturer specifications.
    4. Refill with new transmission fluid through the dipstick tube.

3. Repair or Replace Wiring and Connectors

• Inspect Connectors: Remove and clean any corroded connectors.
• Repair Damaged Wiring: Use electrical tape or heat shrink tubing to repair any damaged wiring.
  • Sub-steps:
    1. Remove the TCM connector and inspect for bent pins.
    2. Repair or replace any damaged connectors as necessary.

4. Test and Replace TCM (if necessary)

• If the TCM is faulty based on testing, replace it.
  • Sub-steps:
    1. Remove the old TCM by unscrewing it from its mounting location.
    2. Install the new TCM, ensuring it is securely fastened and connected properly.
    3. Reconnect the battery.