how to fix Honda CR-V Fifth Generation (2017-2022) rear lights not working

Honda CR-V Fifth Generation (2017-2022)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

576 words

Problem Statement

Learn how to diagnose and fix rear lights not working on Honda CR-V (2017-2022). 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 the electrical system to avoid short circuits.
•Ensure the vehicle is turned off and cool before beginning work.

Symptoms

•Rear brake lights do not illuminate when the brake pedal is pressed
•Rear turn signals are not operational
•Reverse lights do not activate when the transmission is in reverse
•Dashboard warning light for lights may be illuminated
•Possible blown fuses related to the rear lighting circuit

Diagnostic Steps

1
Check the rear light bulbs for any burnouts or damage.
2
Inspect the fuses related to the rear lighting system using the owner's manual for the specific fuse locations.
3
Use an OBD-II scanner to check for any error codes that may indicate electrical issues.
4
Verify the functionality of the light switch and its wiring connections.
5
Inspect the wiring harness and connectors leading to the rear lights for any signs of damage or corrosion.
6
Test the voltage at the rear light sockets with a multimeter to ensure power is reaching the bulbs.

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

•Flathead screwdriver
•Replacement bulbs
•Fuse puller or pliers
•OBD-II scanner
•Multimeter
•Wire stripper
•Electrical tape

Parts Required

•Replacement light bulbs
•Replacement fuses (if necessary)

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Diagnostic Steps

1
Check the rear light bulbs for any burnouts or damage.
2
Inspect the fuses related to the rear lighting system using the owner's manual for the specific fuse locations.
3
Use an OBD-II scanner to check for any error codes that may indicate electrical issues.
4
Verify the functionality of the light switch and its wiring connections.
5
Inspect the wiring harness and connectors leading to the rear lights for any signs of damage or corrosion.
6
Test the voltage at the rear light sockets with a multimeter to ensure power is reaching the bulbs.

Solution

1. Preparation

Gather necessary tools and parts.
Disconnect the negative battery terminal to ensure safety while working on electrical components.

2. Check and Replace Bulbs

Tools Required: Flathead screwdriver, replacement bulbs.
Remove the rear light assembly by unscrewing the retaining screws.
Pull the assembly out to access the bulbs.
Inspect each bulb; replace any that are burnt out with new bulbs of the same type.

3. Inspect and Replace Fuses

Tools Required: Fuse puller or pliers.
Locate the fuse box (typically under the dashboard or in the engine bay).
Identify the fuse related to the rear lights using the owner’s manual.
Pull the fuse using the fuse puller; inspect for any signs of damage.
Replace any blown fuses with a new fuse of the same amperage.

4. Test and Repair Wiring

Tools Required: Multimeter, wire stripper, electrical tape.
Inspect the wiring harness and connectors for frays or corrosion.
Use a multimeter to check for voltage at the rear light sockets. If no voltage is present, trace back to the light switch and check for continuity.
Repair any damaged wires by stripping, splicing, and securing with electrical tape.

5. Reassemble and Test

Reinstall the rear light assembly by reversing the disassembly steps.
Reconnect the negative battery terminal.
Test the rear lights to ensure all functions (brake lights, turn signals, reverse lights) are operational.