why is my Honda Pilot's rear air conditioning not working

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 avoid electrical shorts.

2. Inspect A/C Fuse

• Locate the fuse box and identify the fuse for the rear A/C system (refer to the owner’s manual for the specific location).
• Remove the fuse using a fuse puller and inspect it for continuity.
• Replace with a new fuse of the same amperage if blown.

3. Check Rear A/C Blower Motor

• Access the rear A/C blower motor (typically located under the rear passenger side).
• Disconnect the wiring harness from the blower motor.
• Use a multimeter to test for voltage at the blower motor connector when the A/C is on.
  • If no voltage is present, trace back to the control module or wiring.
  • If voltage is present, replace the blower motor.

4. Recharge A/C System

• Attach a refrigerant gauge set to the A/C service ports (high and low).
• Check the refrigerant levels and add refrigerant if the levels are low.
• Follow the manufacturer's specifications for the correct type and amount of refrigerant.

5. Clear Duct Blockages

• Inspect the rear A/C ductwork for any obstructions such as debris or leaves.
• Remove any blockages to ensure proper airflow.