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

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, basic hand tools (sockets, wrenches), transmission fluid.
• Ensure the vehicle is on a level surface and securely elevated if necessary.

2. Transmission Fluid Change

• Sub-steps:
  1. Remove the transmission pan bolts using a socket set.
  2. Carefully lower the transmission pan to avoid spilling fluid.
  3. Inspect the old transmission filter and replace it if necessary.
  4. Drain old fluid completely and clean the pan.
  5. Install a new filter and gasket, then reattach the pan, tightening bolts to manufacturer specifications (typically 10-12 ft-lbs).
  6. Refill the transmission with the appropriate type and amount of fluid (refer to the owner’s manual for specifications).

3. Replace or Repair Faulty Components

• Sub-steps:
  1. If the transmission range sensor is faulty, remove it by disconnecting the wiring connector and unscrewing it from the transmission.
  2. Install a new sensor, ensuring it is properly aligned before securing it.
  3. Reconnect the wiring harness and clear any fault codes with the OBD-II scanner.

4. Reprogram TCM (if necessary)

• Sub-steps:
  1. Connect the OBD-II scanner to the vehicle's diagnostic port.
  2. Follow the scanner instructions to access the TCM and check for any software updates.
  3. If updates are available, follow the prompt to reprogram the TCM as per the manufacturer's guidelines.