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

Solution

1. Preparation

• Gather tools and parts required for the repair.
• Disconnect the vehicle battery to prevent electrical shorts.
• Ensure the vehicle is on a level surface, and the parking brake is engaged.

2. Check Transmission Fluid

• Remove the transmission dipstick and inspect the fluid level and condition.
• If the fluid is low, top it up with the manufacturer-recommended transmission fluid.
• If the fluid is dirty or burnt, proceed to replace it.

3. Inspect and Repair Wiring

• Visually inspect the wiring harness connected to the transmission control module.
• Look for frayed wires, loose connections, or corrosion.
• Repair or replace any damaged wiring or connectors.

4. Test and Replace Transmission Range Sensor

• Locate the transmission range sensor, typically found on the side of the transmission.
• Disconnect the electrical connector and use a multimeter to check the sensor’s resistance according to the specifications.
• If the sensor is faulty, remove the old sensor and install a new one, ensuring it is aligned and secured properly.

5. Reconnect and Recheck

• Reconnect the vehicle battery.
• Start the engine and check for any persistent codes using the OBD-II scanner.
• If the P0700 code appears again, further diagnostic steps may be needed, including testing the transmission control module itself.