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how to fix the AC compressor clutch not engaging on Honda Civic 9th Generation (2012-2015) - Honda Civic
Home/Cars/Honda/Civic/10th Generation (2016-2021)/how to fix the AC compressor clutch not engaging on Honda Civic 9th Generation (2012-2015)

how to fix the AC compressor clutch not engaging on Honda Civic 9th Generation (2012-2015)

Honda Civic 10th Generation (2016-2021)

Error Codes
2-4 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
3 min read
599 words

Problem Statement

Learn how to diagnose and fix the AC compressor clutch not engaging in Honda Civic 2012-2015. Step-by-step guide with diagnostic steps and repair instructions.

Affected Component
HVAC
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect battery before working on electrical systems
  • •Allow engine to cool before opening the hood or working near hot components

Symptoms

  • •AC compressor clutch does not engage
  • •No cold air from the AC vents
  • •AC system makes a clicking sound when attempting to engage
  • •Increase in engine RPM when the AC is turned on
  • •Check engine light may be illuminated

Diagnostic Steps

  1. 1
  2. 2
  3. 3
  4. 4
  5. 5
  6. 6

Solution

💡 Expert Tip

For complex repairs like this, consider taking photos at each step. This helps if you need to reverse a step or consult with a mechanic. Also, keep all removed parts organized - you may need to reference them during reassembly.

Verification

After completing the repair, verify that the issue has been resolved:

  • ✓Test the affected component to ensure it functions correctly
  • ✓Check for any error codes or warning lights
  • ✓Monitor the vehicle for a few days to ensure the issue does not recur

Prevention Tips

To prevent this issue from occurring again:

  • •Follow the manufacturer's recommended maintenance schedule
  • •Address warning signs early before they develop into major issues
  • •Use quality parts and fluids recommended for your vehicle
  • •Keep detailed records of all repairs and maintenance

Tools & Equipment Required

  • •OBD-II scanner
  • •Manifold gauge set
  • •Multimeter
  • •Socket set
  • •Screwdriver set

Parts Required

  • •AC compressor
  • •AC clutch
  • •AC relay
  • •AC pressure switch
  • •R-134a refrigerant

Additional Information

Affected Component
HVAC
Estimated Time
2-4 hours
Difficulty
medium
Severity
medium
Tools Required
5 items
Parts Required
5 items

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Solution
1. Preparation
  • Gather all necessary tools and parts.
  • Disconnect the negative battery terminal to prevent electrical shorts.
  • Wear safety glasses and gloves for protection.
2. Check and Recharge Refrigerant
  • Sub-steps:
    • Connect the manifold gauge set to the high and low pressure ports of the AC system.
    • Start the engine and turn on the AC to the maximum setting.
    • Check the pressure readings; if low, recharge the system with the appropriate refrigerant (R-134a).
    • Monitor pressures to ensure they are within the manufacturer’s specifications (typically 30-40 psi on low side and 200-230 psi on high side).
3. Inspect AC Compressor Clutch
  • Sub-steps:
    • Visually inspect the AC compressor clutch for any signs of wear or damage.
    • Check the wiring harness and connectors for corrosion or loose connections.
    • If damaged, remove the compressor drive belt using a socket set, and then proceed to replace the AC compressor or clutch.
4. Test and Replace AC Relay/Fuse
  • Sub-steps:
    • Locate the AC relay in the engine compartment fuse box.
    • Remove the relay and test it using a multimeter for continuity.
    • If faulty, replace it with a new relay of the same specifications.
    • Check the associated fuse and replace if necessary.
5. Test the AC Pressure Switch
  • Sub-steps:
    • Locate the AC pressure switch on the dryer or on the compressor.
    • Disconnect the electrical connector and measure the resistance using a multimeter.
    • If the switch is faulty (open or shorted), replace it with a new switch.