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

Honda Civic 9th Generation (2012-2015)

Error Codes

1-2 hours

Time

medium

Difficulty

critical

Severity

4 min read

618 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 2012-2015. Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems.

Symptoms

•Rear brake lights do not illuminate when the brake pedal is pressed.
•Brake light warning indicator may be illuminated on the dashboard.
•Functioning turn signal lights may be present but no brake light activation.
•No power to the brake light circuit when tested with a multimeter.
•Bulbs may appear visually intact but do not light up.

Diagnostic Steps

1
Inspect the brake light bulbs for damage or burnt filaments.
2
Use an OBD-II scanner to check for any related error codes.
3
Test the brake light switch for continuity using a multimeter.
4
Check the fuse for the brake lights in the fuse box.
5
Inspect the wiring and connectors leading to the brake lights for wear or corrosion.

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

•Multimeter
•Screwdriver set
•Socket set
•Pliers
•Replacement bulbs
•Fuse puller

Parts Required

•Brake light bulbs
•Brake light switch
•Fuse

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Symptoms

•Rear brake lights do not illuminate when the brake pedal is pressed.

•Brake light warning indicator may be illuminated on the dashboard.

•Functioning turn signal lights may be present but no brake light activation.

•No power to the brake light circuit when tested with a multimeter.

•Bulbs may appear visually intact but do not light up.

Diagnostic Steps

1
Inspect the brake light bulbs for damage or burnt filaments.
2
Use an OBD-II scanner to check for any related error codes.
3
Test the brake light switch for continuity using a multimeter.
4
Check the fuse for the brake lights in the fuse box.
5
Inspect the wiring and connectors leading to the brake lights for wear or corrosion.

Solution

1. Preparation

Gather tools and parts needed for the repair.
Tools Required:
- Multimeter
- Screwdriver set
- Socket set
- Pliers
- Replacement bulbs (if necessary)
- Fuse puller (if needed)
Safety Warnings:
- Disconnect the battery before working on electrical systems.

2. Inspect and Replace Brake Light Bulbs

Sub-steps:
1. Open the trunk and remove the access panel to the rear light assembly.
2. Twist and remove the bulb socket from the light assembly.
3. Inspect the bulb; if the filament is broken or the bulb appears darkened, replace it with a new bulb.
4. Reinsert the bulb socket into the light assembly and secure it.
5. Reassemble the access panel.

3. Check and Replace the Brake Light Fuse

Sub-steps:
1. Locate the fuse box, typically found under the dashboard or in the engine compartment.
2. Identify the brake light fuse using the diagram on the fuse box cover.
3. Remove the fuse using a fuse puller or pliers.
4. Inspect the fuse; if it is blown, replace it with a fuse of the same amperage.
5. Reinstall the fuse and close the fuse box.

4. Test the Brake Light Switch

Sub-steps:
1. Locate the brake light switch, typically mounted on the brake pedal assembly.
2. Disconnect the electrical connector from the switch.
3. Use a multimeter to test for continuity; press the brake pedal and check for a closed circuit.
4. If there is no continuity, replace the brake light switch with a new one.
5. Reconnect the electrical connector and ensure the switch is properly aligned.

5. Inspect Wiring and Connectors

Sub-steps:
1. Visually inspect the wiring harness leading to the brake lights for any signs of damage or corrosion.
2. If damaged wires are found, repair or replace the affected sections.
3. Clean any corroded connectors with electrical contact cleaner and ensure a tight connection.