how to fix P0700 code in Ford Mustang S550 (2015-2023)

Solution

1. Preparation

• Gather tools: OBD-II scanner, socket set, multimeter, torque wrench, transmission fluid, and a funnel.
• Ensure the vehicle is parked on a level surface, with the engine off, and the parking brake engaged.

2. Transmission Fluid Inspection

• Check Fluid Level:

  1. Locate the transmission dipstick (if equipped) or the fill plug.
  2. Remove the dipstick or fill plug and wipe it clean.
  3. Reinsert it, remove, and check the fluid level.
  4. If low, add the appropriate type of transmission fluid as specified in the owner’s manual.

• Check Fluid Condition:

  1. Inspect the fluid color and smell; it should be a bright red and not burnt.
  2. If dirty or burnt, proceed to replace the transmission fluid and filter.

3. Transmission Fluid Change

1. Remove Transmission Pan:

   • Raise the vehicle securely on jack stands.
   • Remove the bolts securing the transmission pan using a socket set.
   • Gently pry the pan loose to drain the old fluid into a catch basin.

2. Replace Filter:

   • Remove the old filter from the transmission.
   • Install the new filter, ensuring it clicks securely into place.

3. Reinstall Transmission Pan:

   • Clean the surface of the pan and the transmission.
   • Apply a new gasket or sealant as necessary.
   • Reattach the pan and torque the bolts to the manufacturer's specifications (consult service manual for torque values).

4. Refill Transmission Fluid:

   • Using a funnel, refill the transmission with new fluid through the dipstick or fill plug until it reaches the appropriate level.

4. Electrical Inspection

1. Inspect Wiring and Connectors:

   • Visually check the wiring harness connected to the transmission for any frays or corrosion.
   • Repair or replace any damaged wiring or connectors.

2. Test Transmission Solenoids:

   • Disconnect the solenoid connectors and test each solenoid with a multimeter for resistance according to the specifications in the service manual.
   • Replace any solenoids that are out of specification.

5. TCM Check

• If applicable, visit a dealership or qualified technician to check for TCM software updates and reprogramming.