how to fix Honda Civic 9th Generation (2012-2015) rear brake lights not working

Honda Civic 9th Generation (2012-2015)

Error Codes

1-2 hours

Time

medium

Difficulty

critical

Severity

3 min read

540 words

⚠️ Safety Warning

This issue requires immediate attention. If you are not experienced with automotive repairs, consult a professional mechanic. Working on critical systems can be dangerous.

Problem Statement

Learn how to diagnose and fix rear brake lights not working on Honda Civic 9th Generation (2012-2015). Step-by-step guide with tools and parts required.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shorts.
•Ensure the vehicle is securely parked and the ignition is off during repair.

Symptoms

•Rear brake lights do not illuminate when the brake pedal is pressed
•Bulb failure warning message on the dashboard (if applicable)
•Turn signal lights function normally
•Tail lights are working
•No blown fuses detected in the rear light circuit

Diagnostic Steps

1
Inspect the brake light bulbs for damage or burn-out.
2
Check the brake light switch for proper operation.
3
Test the brake light fuse for continuity using a multimeter.
4
Inspect the wiring harness for any visible damage or corrosion.
5
Use an OBD-II scanner to check for any related error codes.

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

•Screwdriver set
•Multimeter
•Replacement bulbs
•New brake light switch

Parts Required

•Brake light bulbs (typically 1157)
•Brake light switch (if found faulty)

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Solution

1. Preparation

Gather tools: Screwdriver set, multimeter, replacement bulbs, and potentially a new brake light switch.
Ensure the vehicle is parked on a flat surface and the ignition is turned off.

2. Inspect and Replace Bulbs

Open the trunk and locate the rear light assembly.
Remove the screws or clips securing the light assembly using a screwdriver.
Carefully pull the light assembly away from the vehicle.
Remove the damaged brake light bulb by twisting it counterclockwise.
Replace with a new bulb of the same type (typically 1157).
Reassemble the light assembly and secure it with screws or clips.

3. Check and Replace Brake Light Switch

Locate the brake light switch near the brake pedal.
Disconnect the electrical connector from the brake light switch.
Use a multimeter to test the switch for continuity when the brake pedal is pressed.
If faulty, remove the switch by unscrewing it from its mounting.
Install the new brake light switch by following the reverse of the removal process and reconnect the electrical connector.

4. Inspect Wiring and Fuses

Using a multimeter, check the brake light fuse located in the fuse box (consult the owner's manual for the exact location).
If the fuse is blown, replace it with a new fuse of the same amperage.
Inspect the wiring harness leading to the brake lights for any signs of wear, fraying, or corrosion. Repair or replace as necessary.