how to fix Honda Civic 10th Generation (2016-2021) warning lights on dashboard

Honda Civic 10th Generation (2016-2021)

Error Codes

2-4 hours

Time

medium

Difficulty

medium

Severity

3 min read

550 words

Problem Statement

Learn how to diagnose and fix dashboard warning lights in Honda Civic 10th Generation (2016-2021). Step-by-step guide with symptoms and solutions.

Affected Component

Electrical

Estimated Time

2-4 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.
•Allow engine to cool before inspecting cooling system components.

Symptoms

•Check engine light illuminated
•Brake system warning light on
•ABS warning light active
•Battery warning light displayed
•Tire pressure monitoring system (TPMS) light illuminated

Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Check fluid levels (engine oil, brake fluid, coolant) to ensure they are within normal ranges.
3
Inspect the vehicle’s battery and charging system for voltage issues.
4
Verify tire pressures for all four tires to ensure they are at recommended levels.
5
Examine brake system components for wear or leaks.
6
Review the vehicle's maintenance records for any overdue services.

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
•Tire pressure gauge
•Basic socket set
•Multimeter

Parts Required

•Brake fluid (if needed)
•Brake pads or rotors (if worn)
•Battery or alternator (if faulty)

Related Faults

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Diagnostic Steps

1
Scan for error codes using an OBD-II scanner to identify specific issues.
2
Check fluid levels (engine oil, brake fluid, coolant) to ensure they are within normal ranges.
3
Inspect the vehicle’s battery and charging system for voltage issues.
4
Verify tire pressures for all four tires to ensure they are at recommended levels.
5
Examine brake system components for wear or leaks.
6
Review the vehicle's maintenance records for any overdue services.

Solution

1. Preparation

Gather Tools and Parts:
- OBD-II scanner
- Tire pressure gauge
- Basic socket set
Safety Warning:
- Disconnect the battery before working on electrical systems.

2. Address Check Engine Light

Use OBD-II Scanner: Connect the scanner to the vehicle's OBD-II port and retrieve diagnostic trouble codes (DTCs).
Research Codes: Look up the DTCs to determine the specific issue (e.g., sensor failure, misfire).
Repair or Replace Affected Components: Follow the specific repair instructions based on the identified codes, which may involve replacing sensors, spark plugs, or other components as necessary.

3. Brake System Warning Light

Inspect Brake Fluid Level: Ensure brake fluid is at the appropriate level; top off if necessary with OEM recommended fluid.
Check for Brake Wear: Inspect brake pads and rotors for wear; replace if worn beyond specifications.
Examine Brake Lines: Look for leaks or damage in the brake lines; repair or replace as needed.

4. ABS and TPMS Lights

ABS System Check: Use the OBD-II scanner to check for ABS fault codes; repair or replace any faulty components such as wheel speed sensors.
TPMS Calibration: If tire pressures are correct, reset the TPMS by following the vehicle's calibration procedure as outlined in the owner’s manual.

5. Battery Warning Light

Test Battery Voltage: Use a multimeter to check battery voltage; replace if it’s below 12.4 volts.
Inspect Alternator: Start the vehicle and check the alternator output; if it’s below 13.7 volts, consider replacing the alternator.
Check Battery Connections: Ensure battery terminals are clean and tight; clean with a wire brush if corrosion is present.