how to fix check engine light P0700 on Ford Explorer Sixth Generation (2020-present)

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Tools Required: OBD-II scanner, socket set, torque wrench, multimeter, transmission fluid, and funnel.

2. Check and Replace Transmission Fluid

1. Locate the transmission fluid dipstick and check the fluid level.
2. If the fluid is low, add the recommended type of transmission fluid (refer to owner's manual).
3. If the fluid is dark or burnt, proceed to drain the transmission fluid:
   • Place a drain pan under the transmission pan.
   • Remove the transmission pan bolts using a socket set and carefully lower the pan.
   • Allow the fluid to drain completely.
   • Clean the pan and replace the filter if applicable.
   • Reinstall the pan with a new gasket and torque to manufacturer specifications.

3. Inspect and Repair Wiring/Connectors

1. Locate the TCM and inspect the wiring harness connected to it.
2. Check for any visible damage, corrosion, or poor connections.
3. If needed, repair or replace damaged wires and connectors.

4. Test and Replace the Transmission Range Sensor

1. Locate the transmission range sensor on the transmission.
2. Disconnect the electrical connector and test the sensor with a multimeter to ensure it operates within the specified resistance range.
3. If faulty, replace the sensor:
   • Remove the sensor mounting bolts.
   • Install the new sensor and secure it with bolts to manufacturer torque specifications.

5. Reprogram or Update TCM Software (If Applicable)

1. Connect the OBD-II scanner and check for available updates for the TCM.
2. Follow the scanner prompts to download and install any software updates.