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

575 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 needed.

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 avoid shorts or shocks.

Symptoms

•Rear brake lights do not illuminate when the brake pedal is pressed
•Brake light warning indicator may be illuminated on the dashboard
•No clicking sound from the brake light switch when the pedal is pressed
•Other rear lights (tail lights, turn signals) function normally
•Possible blown fuse related to brake lights

Diagnostic Steps

1
Inspect the brake light bulbs for any signs of damage or burnout.
2
Check the brake light fuse in the fuse box for continuity.
3
Test the brake light switch operation by measuring voltage at the switch terminal.
4
Verify the wiring and connections leading to the brake lights for any visible damage or corrosion.
5
Use a multimeter to check for power at the brake light socket when the brake pedal is pressed.

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

•Socket set
•Multimeter
•Screwdriver set
•Pliers

Parts Required

•Brake light bulbs (7443)
•Brake light fuse (if blown)
•Brake light switch (if defective)

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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

•No clicking sound from the brake light switch when the pedal is pressed

•Other rear lights (tail lights, turn signals) function normally

•Possible blown fuse related to brake lights

Diagnostic Steps

1
Inspect the brake light bulbs for any signs of damage or burnout.
2
Check the brake light fuse in the fuse box for continuity.
3
Test the brake light switch operation by measuring voltage at the switch terminal.
4
Verify the wiring and connections leading to the brake lights for any visible damage or corrosion.
5
Use a multimeter to check for power at the brake light socket when the brake pedal is pressed.

Solution

1. Preparation

Gather necessary tools and parts.
Ensure the vehicle is parked on a flat surface and the ignition is turned off.
Disconnect the negative battery terminal to prevent electrical shocks.

2. Inspect and Replace Bulbs

Sub-steps:
1. Open the trunk and locate the rear light assembly.
2. Remove the light assembly cover by unscrewing any fasteners.
3. Remove the brake light bulb by twisting counterclockwise.
4. Inspect the bulb; if the filament is broken or the bulb is discolored, replace it with a new bulb (usually 7443).
5. Reinstall the bulb and cover the light assembly.

3. Check and Replace Fuse

Sub-steps:
1. Locate the fuse box (usually under the dashboard or near the driver’s side).
2. Remove the cover and locate the brake light fuse (refer to the fuse diagram).
3. Inspect the fuse; if it is blown, replace it with a fuse of the same amperage (typically 10A).
4. Reinstall the fuse box cover.

4. Test Brake Light Switch

Sub-steps:
1. Locate the brake light switch, typically mounted near the brake pedal.
2. Disconnect the wiring harness from the switch.
3. Use a multimeter to check for continuity when the brake pedal is pressed.
4. If there is no continuity, replace the brake light switch with a new one.
5. Reconnect the wiring harness and test operation.

5. Verify Wiring and Connections

Sub-steps:
1. Inspect the wiring harness leading to the brake lights for any signs of wear or damage.
2. Repair or replace any damaged wires or connectors.
3. Ensure all connections are secure and free of corrosion.
4. Reconnect the negative battery terminal and test the brake lights again.