Honda CR-V Sixth Generation (2023-present) rear lights not working what could be wrong

Honda CR-V Fifth Generation (2017-2022)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

475 words

Problem Statement

Learn how to diagnose and fix rear lights not working in Honda CR-V (2023-present). Step-by-step guide with symptoms, diagnostic steps, 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 any electrical components to avoid shocks or shorts.

Symptoms

•Rear lights do not illuminate when headlights are on
•Brake lights are non-functional
•Turn signal indicators for rear lights do not work
•Dashboard warning lights illuminated (e.g., 'Brake' or 'Rear Light')
•Possible blown fuses related to rear lighting circuits

Diagnostic Steps

1
Inspect the rear light bulbs for any signs of damage or burn-out.
2
Check the fuses related to the rear lighting system using the fuse box diagram.
3
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the lighting system.
4
Test the wiring harness and connectors for corrosion or loose connections.
5
Verify that the headlight switch operates correctly and provides power to the rear lights.

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
•Fuse puller or pliers
•Multimeter (for electrical testing)
•Electrical contact cleaner

Parts Required

•Rear light bulbs (if burnt out)
•Replacement fuses (if blown)
•Headlight switch (if faulty)

Related Faults

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Diagnostic Steps

1
Inspect the rear light bulbs for any signs of damage or burn-out.
2
Check the fuses related to the rear lighting system using the fuse box diagram.
3
Use an OBD-II scanner to check for any diagnostic trouble codes (DTCs) related to the lighting system.
4
Test the wiring harness and connectors for corrosion or loose connections.
5
Verify that the headlight switch operates correctly and provides power to the rear lights.

Solution

1. Preparation

Gather all necessary tools and parts.
Ensure the vehicle is in a safe location and turn off the ignition.
Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Replace Bulbs

Sub-steps:
- Open the rear light assembly by removing any screws or clips.
- Carefully pull out the bulb socket and inspect the bulb.
- Replace any burnt-out bulbs with new ones of the same type (check the owner's manual for specifications).
- Reassemble the rear light assembly and secure it.

3. Check and Replace Fuses

Sub-steps:
- Locate the fuse box (usually under the dashboard or in the engine bay).
- Identify the fuse for the rear lights using the diagram on the fuse box cover.
- Remove the fuse with a fuse puller or pliers and inspect it for continuity.
- If blown, replace it with a new fuse of the same amperage.
- Reinstall the fuse box cover securely.

4. Inspect Wiring and Connectors

Sub-steps:
- Check the wiring harness for any signs of wear, fraying, or damage.
- Disconnect the wiring connectors from the rear light assembly and inspect for corrosion or dirt.
- Clean connectors with electrical contact cleaner and reconnect securely.

5. Test the Headlight Switch

Sub-steps:
- Reconnect the negative battery terminal.
- Turn on the vehicle and test the headlight switch position.
- Check if the rear lights illuminate correctly when activated.
- If they still do not work, consider replacing the headlight switch.

Tools Required:

Screwdriver set
Fuse puller or pliers
Multimeter (for electrical testing)
Electrical contact cleaner

Parts Required:

Rear light bulbs (if burnt out)
Replacement fuses (if blown)
Headlight switch (if faulty)

Estimated Repair Time: 1-2 hours

Safety Warnings:

Disconnect the battery before working on any electrical components to avoid shocks or shorts.