how to diagnose P0700 code on Honda Pilot Third Generation (2016-present)

Solution

1. Preparation

• Gather necessary tools and parts.
• Ensure the vehicle is parked on a level surface and the engine is off.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Check Transmission Fluid

• Sub-steps:
  1. Locate the transmission dipstick.
  2. Remove the dipstick, wipe it clean, and reinsert it.
  3. Remove it again to check the fluid level; add the correct type of transmission fluid if low.
• Tools Required: Transmission fluid, funnel.

3. Inspect Wiring and Connectors

• Sub-steps:
  1. Locate the transmission control module and its wiring harness.
  2. Visually inspect for frayed wires, loose connectors, or corrosion.
  3. Use a multimeter to check for continuity in the wiring.
• Tools Required: Multimeter.

4. Replace Transmission Control Module (if necessary)

• Sub-steps:
  1. Remove any panels blocking access to the transmission control module.
  2. Disconnect the wiring harness from the module.
  3. Remove the bolts securing the module and carefully detach it.
  4. Install the new module by securing it with bolts and reconnecting the wiring harness.
• Tools Required: Socket set, torque wrench.
• Safety Warnings: Ensure the battery is disconnected before working on electrical components.

5. Refill and Check Transmission Fluid

• Sub-steps:
  1. After any repairs, check the transmission fluid level again.
  2. Add fluid as necessary to reach the proper level.
• Tools Required: Transmission fluid, funnel.