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How can I troubleshoot a non-working rearview camera in my 2020 Highlander? - Toyota Highlander
Home/Cars/Toyota/Highlander/Fourth Generation (2020-present)/How can I troubleshoot a non-working rearview camera in my 2020 Highlander?

How can I troubleshoot a non-working rearview camera in my 2020 Highlander?

Toyota Highlander Fourth Generation (2020-present)

Error Codes
2-3 hours
Time
medium
Difficulty
medium
Severity
Navigation
ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
614 words

Problem Statement

Learn how to diagnose and repair a non-working rearview camera in your 2020 Toyota Highlander with this step-by-step guide.

Affected Component
rearview camera
Estimated Time
2-3 hours

Symptoms

  • •Rearview camera display is blank.
  • •Camera image is distorted or unclear.
  • •Error message related to the rearview camera appears on the infotainment screen.
  • •Camera does not activate when shifting into reverse.

Diagnostic Steps

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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

  • •OBD-II Scanner
  • •Multimeter
  • •Flathead screwdriver
  • •Phillips screwdriver
  • •Wire connectors
  • •Electrical tape
  • •Replacement camera
  • •Trim removal tool

Additional Information

Affected Component
rearview camera
Estimated Time
2-3 hours
Difficulty
medium
Severity
medium
Tools Required
8 items

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Back to Generation

Troubleshooting a Non-Working Rearview Camera in a 2020 Toyota Highlander

If your rearview camera is not functioning correctly, it may lead to safety concerns while reversing. Here’s a structured approach to diagnosing and repairing the issue.

Tools Required
  • OBD-II Scanner
  • Multimeter
  • Flathead screwdriver
  • Phillips screwdriver
  • Wire connectors (if necessary)
  • Electrical tape
  • Replacement camera (if needed)
  • Trim removal tool
Step 1: Check the Infotainment System
  1. Power Cycle the System: Turn off the vehicle, wait a minute, and restart. This can reset temporary glitches.
  2. Check Display Settings: Verify if the camera option is enabled in the settings menu of the infotainment system.
Step 2: Inspect the Camera Lens
  1. Visual Inspection: Check the rearview camera for dirt, moisture, or obstructions. Clean the lens with a microfiber cloth if necessary.
  2. Check for Physical Damage: Look for any signs of cracks or damage to the camera housing.
Step 3: Verify the Camera Activation
  1. Shift into Reverse: Ensure the vehicle is in reverse and observe if the camera activates.
  2. Use OBD-II Scanner: Connect the OBD-II scanner to check for any fault codes related to the rearview camera system. Note down any relevant DTCs (Diagnostic Trouble Codes).
Step 4: Electrical Inspection

  1. Check Fuses:

    • Locate the fuse box. Refer to the owner's manual for the specific fuse for the rearview camera.
    • Inspect the fuse; replace it if blown.

  2. Test Power Supply:

    • Use a multimeter to check for voltage at the camera connector.
    • Disconnect the camera harness and use the multimeter to check for power (typically 12V) and ground. If no power is detected, trace the wiring back to the source.
Step 5: Examine Wiring and Connections
  1. Inspect Wiring: Look for any frayed or damaged wires leading to the rearview camera.
  2. Check Connectors: Ensure that all connectors are securely attached and free from corrosion. Clean and reattach if necessary.
Step 6: Test the Camera
  1. Directly Connect the Camera: If possible, remove the camera from its mount and connect it directly to a power source to see if it functions outside of the vehicle's wiring.
  2. Replace Camera: If the camera does not activate when connected directly, you may need to replace it.
Repair Instructions
Step 1: Replacing the Rearview Camera

  1. Remove the Trim Panel:

    • Use a trim removal tool to carefully pry off the trim panel surrounding the rearview camera.
    • Take care not to damage any clips.

  2. Disconnect the Old Camera:

    • Locate the camera connector and carefully disconnect it.

  3. Install New Camera:

    • Connect the new rearview camera to the existing wiring harness.
    • Secure the camera in place, ensuring it is properly aligned.

  4. Reattach the Trim Panel:

    • Carefully snap the trim panel back into place, ensuring all clips are secured.
Step 2: Final Check
  1. Reconnect the Battery (if disconnected): If you disconnected the battery at any point, make sure to reconnect it.
  2. Test the System: Start the vehicle, shift into reverse, and verify that the rearview camera activates and displays a clear image.
Conclusion

By following these detailed steps, you should be able to diagnose and repair the non-working rearview camera on your 2020 Toyota Highlander. If issues persist after these troubleshooting steps, it may be beneficial to consult a professional technician for further diagnosis and repair.