AC Clutch Coil

This procedure replaces the AC compressor clutch coil on the 2018-2024 Honda Accord 1.5L Turbo without fully removing the compressor or evacuating the AC system.

Warnings

Tools required

Parts

• AC compressor clutch coil × 1 — Use OEM specification
• Snap ring (if damaged) × 1 — Use OEM specification

Preparation

1. Park vehicle on level surface and apply parking brake
2. Place wheel chocks behind rear wheels
3. Allow engine to cool completely if recently operated
4. Disconnect negative battery terminal and wait 3 minutes for airbag system to discharge
5. Raise front of vehicle and support on jack stands
6. Remove driver side front wheel for improved access
7. Remove plastic engine splash shield (multiple 10mm bolts and clips)

Procedure

1. 1

   Access the AC compressor
   Locate the AC compressor on the front lower passenger side of the engine. The clutch coil is visible as a circular electromagnetic coil mounted to the front face of the compressor behind the clutch pulley. You may need to remove the plastic engine cover from above for additional access, though most work is done from below.
2. 2

   Disconnect clutch coil electrical connector
   Locate the electrical connector on the clutch coil. Press the locking tab and carefully pull the connector straight off. Do not twist or bend excessively. If corroded, spray with electrical contact cleaner and allow to penetrate before removal.
3. 3

   Remove the clutch coil retaining snap ring
   Using snap ring pliers, carefully compress and remove the snap ring that retains the clutch coil to the compressor housing. The snap ring is located in a groove on the compressor nose. Work carefully to avoid launching the snap ring. Inspect the snap ring for damage or deformation and replace if necessary.
   ⚠Snap rings can spring out with force. Wear eye protection and control the pliers carefully.
4. 4

   Remove the clutch coil
   With the snap ring removed, carefully pull the clutch coil assembly straight off the compressor nose. It should slide off with moderate force. If stuck, gently wiggle while pulling straight out. Do not pry against the compressor housing or pulley. Note the orientation and position of any shims or spacers behind the coil.
5. 5

   Clean the compressor mounting surface
   Use a wire brush and electrical contact cleaner to thoroughly clean the compressor nose where the clutch coil mounts. Remove all dirt, oil residue, and corrosion. Ensure the snap ring groove is clean and free of debris. Inspect the clutch pulley bearing for excessive play or noise while spinning by hand.
6. 6

   Install the new clutch coil
   Slide the new clutch coil onto the compressor nose, ensuring it seats fully against the mounting surface. Route the electrical wire in the same position as the original. If shims were present on the original, reinstall them in the same configuration. The coil should sit flush with no gaps.
7. 7

   Install the snap ring
   Using snap ring pliers, install the snap ring into the groove on the compressor nose. Ensure the snap ring is fully seated in the groove around its entire circumference. Verify the clutch coil cannot be pulled off with moderate hand force.
8. 8

   Measure clutch air gap
   Using a feeler gauge, measure the air gap between the clutch plate (on the pulley) and the face of the electromagnetic coil at three points around the circumference. The gap should be 0.014-0.026 inches (0.35-0.65mm). If out of specification, adjust using shims behind the coil. This is critical for proper clutch engagement.
   ⚠Incorrect clutch air gap will cause premature failure, noise, or clutch slippage. Verify measurement at multiple points.
9. 9

   Reconnect electrical connector
   Clean the electrical connector terminals with electrical contact cleaner if needed. Push the connector onto the clutch coil terminals until it clicks into place. Verify the locking tab is fully engaged.
10. 10

    Reinstall splash shield and wheel
    Reinstall the engine splash shield and secure all clips and fasteners. Reinstall the driver side front wheel and hand-tighten lug nuts. Lower the vehicle and torque lug nuts to 108 Nm (80 lb-ft) in a star pattern.
11. 11

    Reconnect battery
    Reconnect the negative battery terminal. Reset the clock and radio presets as needed. The power window and sunroof auto functions may need to be reinitialized per owner's manual procedures.

Reassembly

1. Ensure all electrical connections are secure and properly routed
2. Verify snap ring is fully seated in groove
3. Double-check clutch air gap specification before completing the job
4. Confirm no tools or parts are left in engine compartment

Verification

• Start the engine and turn on the AC system to maximum cold setting
• Listen for the clutch engagement click when AC is turned on - should be audible from engine bay
• Observe the clutch plate spinning when AC is engaged (center portion of pulley should rotate with outer pulley)
• Verify cold air is produced at cabin vents within 30-60 seconds
• Check for unusual noises from the compressor area during operation
• Verify AC cycles on and off normally as temperature is reached
• Inspect for any refrigerant leaks around compressor area (though none should occur with this procedure)
• Test AC performance during a short test drive to confirm normal operation under load

Related trouble codes on this vehicle

Codes that commonly send this job to the bay — tap one for symptoms, causes, and diagnostic steps.

Chasing one of these codes and not sure which part is guilty? Ask a master mechanic about YOUR car →

More procedures for this vehicle