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why does my Honda Civic 10th Generation (2016-2021) check engine light keep coming on - Honda Civic
Home/Cars/Honda/Civic/10th Generation (2016-2021)/why does my Honda Civic 10th Generation (2016-2021) check engine light keep coming on

why does my Honda Civic 10th Generation (2016-2021) check engine light keep coming on

Honda Civic 10th Generation (2016-2021)

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

Problem Statement

Learn how to diagnose and fix the check engine light issue in Honda Civic 10th Generation (2016-2021). Step-by-step guide with symptoms and solutions.

Affected Component
Engine
Estimated Time
2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

  • •Disconnect the battery before working on electrical systems
  • •Allow the engine to cool before opening any components to avoid burns

Symptoms

  • •Check engine light illuminated
  • •Rough idle or engine hesitation
  • •Decreased fuel efficiency
  • •Engine stalling or misfiring
  • •Unusual noises from the engine compartment
  • •Increased emissions

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
  • •Socket set
  • •Torque wrench
  • •Screwdrivers
  • •Pliers

Parts Required

  • •Gas cap (if damaged)
  • •Spark plugs
  • •Ignition coils (if faulty)
  • •Vacuum lines (if damaged)

Additional Information

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

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Solution
1. Preparation
  • Gather necessary tools and parts.
  • Ensure the vehicle is parked on a level surface and the engine is cool.
  • Disconnect the battery negative terminal to prevent electrical issues.
2. Addressing Error Codes
  • Connect the OBD-II scanner and retrieve the error codes.
  • Research the specific codes to determine the related system or component.
  • Clear the codes and observe if they return after a test drive.
3. Gas Cap Inspection and Replacement
  • Check the gas cap for cracks or damage; replace if necessary.
  • Ensure the gas cap clicks securely when tightened.
4. Spark Plug and Ignition Coil Replacement
  • Remove the ignition coil by unbolting it and disconnecting the electrical connector.
  • Replace the spark plug with a new one, ensuring it meets the OEM specifications.
  • Reinstall the ignition coil and reconnect the electrical connector.
5. Vacuum Line Inspection and Repair
  • Visually inspect all vacuum lines for cracks or disconnections.
  • Replace any damaged vacuum lines with OEM replacements.
  • Ensure all connections are secure.