how to diagnose P0700 code on my Ford Explorer Fifth Generation (2011-2019)

Solution

1. Preparation

• Tools Required: OBD-II scanner, multimeter, socket set, transmission fluid, funnel, torque wrench.
• Disconnect the battery to prevent electrical shorts.
• Ensure the vehicle is on a level surface and secure it with wheel chocks.

2. Check and Replace Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick or fill plug.
  2. Remove the dipstick or fill plug and check the fluid level.
  3. If fluid is low, add the recommended transmission fluid (check owner's manual for specifications).
  4. If fluid is dirty or burnt, drain the transmission fluid and replace it with fresh fluid.
  5. Reinstall the dipstick or fill plug and tighten to the manufacturer's specifications.

3. Repair or Replace Damaged Wiring/Connectors

• Sub-steps:
  1. Identify any damaged wiring or corroded connectors related to the TCM.
  2. Repair any frayed wires by soldering or replacing the affected section.
  3. Clean corroded connectors with electrical contact cleaner and ensure a tight fit upon reconnection.

4. Replace Transmission Control Module (if necessary)

• Sub-steps:
  1. Disconnect the battery again.
  2. Locate the TCM, typically found near the transmission or under the dashboard.
  3. Remove the TCM by unscrewing the mounting bolts and unplugging the connectors.
  4. Install the new TCM by reversing the removal process, ensuring all connections are secure.
  5. Reconnect the battery.