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

Solution

1. Preparation

• Gather tools and parts. Ensure you have a clean workspace.
• Tools Required: OBD-II scanner, multimeter, socket set, torque wrench, transmission fluid, funnel.

2. Address Transmission Fluid Issues

• Check Fluid Level:
  • Park the vehicle on a level surface and warm up the engine.
  • Remove the transmission dipstick and wipe it clean.
  • Reinsert the dipstick and remove again to check fluid level; add fluid if low.
• Change Fluid if Contaminated:
  • Drain the old transmission fluid using a drain pan.
  • Replace the transmission filter if applicable, and reinstall the pan with a new gasket.
  • Refill the transmission with new fluid as specified in the owner’s manual.

3. Inspect and Repair TCM Connections

• Inspect Connectors:
  • Disconnect the battery (negative terminal) to prevent electrical shorts.
  • Remove the TCM connector and inspect for corrosion or damage.
  • Clean the connectors with electrical contact cleaner and reconnect them securely.

4. Test and Replace TCM (if necessary)

• Test TCM:
  • With the multimeter, check for the proper voltage at the TCM harness according to the specifications in the service manual.
• Replace TCM:
  • If faulty, remove the old TCM from its mounting bracket.
  • Install the new TCM, ensuring all connectors are properly attached.
  • Reconnect the battery.