my Honda Pilot YF3 (2016-2022) AC compressor clutch not engaging, what to do?

Solution

1. Preparation

• Gather tools and parts required.
• Disconnect the negative battery terminal to prevent electrical shock.
• Ensure the vehicle is on a flat surface and the engine is cool.

2. Check and Replace the AC Fuse

• Locate the fuse box under the dashboard or hood.
• Remove the AC fuse using a fuse puller.
• Inspect the fuse; replace it with a new fuse of the same amperage if it is blown.

3. Check and Replace the AC Relay

• Identify the AC relay in the fuse box.
• Remove the relay and inspect for any signs of damage.
• Swap the AC relay with a similar one to test functionality; replace if necessary.

4. Recharge the AC System (if needed)

• Connect the manifold gauge set to the AC service ports.
• If the refrigerant is low, use a refrigerant canister and follow the manufacturer's instructions for recharging.
• Monitor the pressures to ensure they are within the specified range.

5. Inspect and Replace the Compressor Clutch

• If the clutch still does not engage, remove the compressor belt.
• Inspect the compressor clutch for wear or damage.
• If damaged, replace the entire AC compressor as the clutch is typically not sold separately.

Tools Required:

• OBD-II scanner
• Multimeter
• Manifold gauge set
• Fuse puller
• Basic hand tools (sockets, wrenches)

Parts Required:

• AC fuse
• AC relay
• Refrigerant
• AC compressor (if clutch is damaged)

Estimated Repair Time: 2-4 hours

Safety Warnings:

• Disconnect the battery before working on electrical systems.
• Use protective eyewear when working with refrigerants.