how to diagnose Honda Pilot YF3 (2016-2022) P0700 code

Solution

1. Preparation

• Gather necessary tools and parts.
• Disconnect the vehicle's battery to ensure safety while working on electrical systems.

2. Inspect Transmission Fluid

• Sub-steps:
  • Remove the transmission dipstick and wipe it clean.
  • Reinsert the dipstick and remove it again to check fluid level.
  • Inspect fluid color and smell; it should be a bright red color and should not have a burnt odor.
• Tools Required: None specifically for this step.

3. Repair or Replace Faulty Wiring/Connectors

• Sub-steps:
  • Visually inspect all wiring and connectors related to the TCM.
  • Repair any damaged wires and replace any corroded connectors.
• Tools Required: Wire strippers, soldering iron, electrical tape.

4. Test and Replace TCM (if necessary)

• Sub-steps:
  • Using a multimeter, check voltage and ground at the TCM.
  • If readings are incorrect, replace the TCM.
  • Install the new TCM and ensure all connections are secure.
• Tools Required: Multimeter, socket set.
• Parts Required: New TCM (if replacement is necessary).

5. Refill Transmission Fluid (if low)

• Sub-steps:
  • If fluid levels were low, refill with manufacturer-recommended transmission fluid.
  • Start the engine, and with the vehicle in park, cycle through each gear to circulate the fluid.
• Tools Required: Funnel, transmission fluid.
• Parts Required: Honda-approved transmission fluid.