how to fix Honda Civic 10th Generation (2016-2021) rear lights not working

Honda Civic 11th Generation (2022-Present)

Error Codes

1-3 hours

Time

medium

Difficulty

medium

Severity

4 min read

621 words

Problem Statement

Learn how to diagnose and fix rear lights not working on Honda Civic 10th Generation (2016-2021). Step-by-step guide with diagnostic procedures and repair instructions.

Affected Component

Electrical

Estimated Time

1-3 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical systems to prevent shock or short circuits.

Symptoms

•Rear brake lights do not illuminate when pressing the brake pedal
•Tail lights are not functioning
•No turn signal indicators from rear lights
•Dashboard warning light for rear lights may be illuminated
•Possible blown fuse (check for burnt fuse)

Diagnostic Steps

1
Inspect the rear light bulbs for any signs of damage or burnout.
2
Check the fuse box for any blown fuses related to the rear lighting circuit.
3
Use a multimeter to test for voltage at the bulb socket when the lights are activated.
4
Inspect the wiring harness and connectors for signs of corrosion or damage.
5
Verify the operation of the brake light switch located near the brake pedal.
6
Check the body control module for any stored error codes that may indicate an electrical issue.

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
•Bulb puller
•Fuse puller or needle-nose pliers
•Multimeter
•Wire stripper/crimper

Parts Required

•Replacement bulbs
•Replacement fuses (if needed)
•Brake light switch (if faulty)

Related Faults

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Diagnostic Steps

1
Inspect the rear light bulbs for any signs of damage or burnout.
2
Check the fuse box for any blown fuses related to the rear lighting circuit.
3
Use a multimeter to test for voltage at the bulb socket when the lights are activated.
4
Inspect the wiring harness and connectors for signs of corrosion or damage.
5
Verify the operation of the brake light switch located near the brake pedal.
6
Check the body control module for any stored error codes that may indicate an electrical issue.

Solution

1. Preparation

Gather all necessary tools and parts.
Disconnect the negative battery terminal to avoid electrical shock or short circuits.

2. Inspect and Replace Bulbs

Tools Required: Screwdriver, bulb puller
Locate the rear light assembly by accessing the trunk or rear compartment.
Remove the screws securing the light assembly.
Pull out the light assembly carefully.
Remove the bulb socket by turning it counterclockwise, then pull out the old bulb.
Replace it with a new bulb of the same specification (check owner's manual for bulb type).
Reassemble the light assembly and secure it with screws.

3. Check and Replace Fuses

Tools Required: Fuse puller or needle-nose pliers
Locate the fuse box; the rear light fuses are typically found under the dashboard or in the engine compartment.
Identify the fuse associated with the rear lights (refer to the fuse diagram).
Pull the fuse out and inspect it; if the filament is broken, replace it with a new fuse of the same amperage.
Reinstall the fuse and close the fuse box.

4. Repair Wiring and Connectors

Tools Required: Wire stripper/crimper, electrical tape
Inspect the wiring harness for any visible damage or wear.
If any wires are frayed or broken, strip the ends and use a crimper to splice in new wire, ensuring a secure connection.
Use electrical tape to insulate any exposed wiring.

5. Test Brake Light Switch

Tools Required: Multimeter
Locate the brake light switch near the brake pedal.
Use the multimeter to check for continuity when the brake pedal is pressed.
If the switch is faulty, remove and replace it with a new one.