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how to fix Honda Civic 9th Generation (2012-2015) AC not blowing cold air - Honda Civic
Home/Cars/Honda/Civic/9th Generation (2012-2015)/how to fix Honda Civic 9th Generation (2012-2015) AC not blowing cold air

how to fix Honda Civic 9th Generation (2012-2015) AC not blowing cold air

Honda Civic 9th Generation (2012-2015)

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

Problem Statement

Learn how to diagnose and fix AC not blowing cold air in Honda Civic 9th Generation (2012-2015). Step-by-step guide with tools and parts required.

Affected Component
HVAC
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems.
  • •Ensure the AC system is properly evacuated before disconnecting refrigerant lines to prevent refrigerant release into the atmosphere.

Symptoms

  • •AC compressor not engaging
  • •Warm air blowing from the vents
  • •Unusual noises when AC is turned on
  • •AC clutch not cycling
  • •Strange odors from the AC system

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

  • •AC manifold gauge set
  • •Socket set
  • •Multimeter
  • •Screwdrivers
  • •Safety goggles
  • •Gloves

Parts Required

  • •Refrigerant (R-134a)
  • •AC compressor (if faulty)
  • •AC clutch assembly (if faulty)
  • •Fuses and relays (if necessary)

Additional Information

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

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Solution
1. Preparation
  • Gather all necessary tools and parts before starting the repair.
  • Safety gear such as gloves and goggles should be worn.
  • Disconnect the negative battery terminal to prevent electrical shorts.
2. Check and Recharge Refrigerant
  • Use an AC manifold gauge set to check the low and high-pressure readings.
    • If the readings are low, it may indicate a refrigerant leak.
  • If levels are low, recharge the system with the appropriate refrigerant (R-134a).
    • Follow manufacturer's specifications for the amount and procedure.
3. Inspect and Replace AC Components

  • AC Compressor Check:

    • Inspect the AC compressor for any signs of wear or damage.
    • If the compressor is faulty, replace it by following these steps:
      1. Remove the belt from the AC compressor.
      2. Disconnect electrical connectors and refrigerant lines (ensure the system is evacuated before disconnection).
      3. Unbolt the compressor from its mounting brackets and remove it.
      4. Install the new compressor in reverse order, making sure to replace any O-rings and seals.

  • AC Clutch Inspection:

    • Check whether the AC clutch is engaging. If not, test the clutch coil with a multimeter for continuity.
    • If the coil is faulty, replace the AC clutch assembly.
4. Inspect Electrical Components
  • Check all related fuses and replace any that are blown.
  • Inspect the AC relay and replace if necessary.
  • Verify continuity in wiring related to the AC system.
5. Reassemble and Recharge
  • After replacing any faulty components, ensure all connections are secure.
  • Reconnect the battery terminal and start the vehicle.
  • Recharge the AC system again if needed and check for leaks.