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

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the battery to prevent electrical shorts and ensure safety.
• Raise the vehicle using jack stands if necessary.

2. Inspect and Replace Transmission Fluid

• Sub-steps:
  1. Remove the transmission fluid dipstick and check the fluid level.
  2. If low, locate the fill port and add the manufacturer-recommended transmission fluid.
  3. If the fluid appears dark or has a burnt smell, drain the old fluid.
  4. Refill with new, clean transmission fluid according to manufacturer specifications.
• Tools Required: Transmission fluid pump, socket set, fluid catch pan.
• Safety Warnings: Ensure the engine is off and cool before working on the transmission fluid.

3. Repair or Replace Wiring and Connectors

• Sub-steps:
  1. Visually inspect all wiring harnesses connected to the TCM and transmission for signs of wear or damage.
  2. Repair any frayed wires or bad connections; consider replacing damaged connectors with new ones.
  3. Use electrical cleaner to ensure a good connection at connectors.
• Tools Required: Wire strippers, soldering iron or crimping tool, electrical cleaner.

4. Update Transmission Control Module (TCM) Software

• Sub-steps:
  1. Using the OBD-II scanner, check for any available software updates for the TCM.
  2. Follow manufacturer instructions to perform the update if applicable.
• Tools Required: OBD-II scanner with programming capability.

5. Clear Codes and Test Drive

• Sub-steps:
  1. Clear the P0700 code and any other related codes using the OBD-II scanner.
  2. Reconnect the battery and take the vehicle for a test drive to ensure the problem is resolved.
• Tools Required: OBD-II scanner.