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How do I troubleshoot the rearview camera malfunction in my 2020 Toyota Camry? - Toyota Camry
Home/Cars/Toyota/Camry/Eighth Generation (2018-present)/How do I troubleshoot the rearview camera malfunction in my 2020 Toyota Camry?

How do I troubleshoot the rearview camera malfunction in my 2020 Toyota Camry?

Toyota Camry Eighth Generation (2018-present)

Error Codes
2 hours
Time
medium
Difficulty
medium
Severity
Error Code: U0235
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ProblemSymptomsDiagnosisSolution
ProblemSymptomsDiagnosisSolution
4 min read
613 words

Problem Statement

Learn how to troubleshoot and repair the rearview camera malfunction in your 2020 Toyota Camry with step-by-step instructions and required tools.

Error Code
U0235
Affected Component
rearview camera
Estimated Time
2 hours

Symptoms

  • •Rearview camera display is blank or not activating when the vehicle is in reverse.
  • •Camera image is distorted or unclear.
  • •Error messages related to the rearview camera on the dashboard.
  • •Backup guidelines are not displayed.

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
  • •Digital multimeter
  • •Screwdrivers (Phillips and flathead)
  • •Torx screwdriver set
  • •Wire connectors and repair kit
  • •Electrical tape
  • •Rags or cleaning cloths

Additional Information

Error Code
U0235
Affected Component
rearview camera
Estimated Time
2 hours
Difficulty
medium
Severity
medium
Tools Required
7 items

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Troubleshooting Rearview Camera Malfunction in a 2020 Toyota Camry

Tools Required
  • OBD-II scanner
  • Digital multimeter
  • Screwdrivers (Phillips and flathead)
  • Torx screwdriver set
  • Wire connectors and repair kit
  • Electrical tape
  • Rags or cleaning cloths
Step 1: Visual Inspection
  1. Check the Camera Lens: Ensure that the rearview camera lens is clean and free from dirt or debris. Use a soft cloth to clean the lens.
  2. Inspect Wiring: Look for any visible damage to the wiring harness connected to the rearview camera. Inspect the connectors for corrosion or loose connections.
  3. Check the Display: Ensure that the multimedia display is functioning properly. Test other functions such as the radio and navigation.
Step 2: Use an OBD-II Scanner
  1. Scan for Error Codes: Connect the OBD-II scanner to the vehicle’s diagnostic port (usually located under the dashboard).
  2. Retrieve Codes: Check for any diagnostic trouble codes (DTCs) related to the rearview camera or multimedia system. Common codes might include U0235 (Lost Communication with Backup Camera).
  3. Note Codes: Write down any codes for further troubleshooting.
Step 3: Power and Ground Test
  1. Access Camera Wiring: If the visual inspection passes, access the rearview camera wiring. This usually involves removing interior trim panels to reach the camera harness.
  2. Check Power Supply: Use a digital multimeter to check for voltage at the camera connector. You should see around 12V when the vehicle is in reverse.
    • Positive Probe: Insert the positive probe into the power wire of the camera connector.
    • Negative Probe: Connect the negative probe to a good ground.
  3. Check Ground Connection: Ensure that the ground wire is providing a solid connection. If there is no voltage, or if the ground is faulty, repair or replace as necessary.
Step 4: Test the Camera
  1. Bypass Test: If power and ground are confirmed, temporarily connect another known good rearview camera to test if the issue is with the camera itself or the wiring.
  2. Reinstall the Camera: If the test camera works, the original camera may need replacement.
Repair Instructions
Step 1: Replacing the Rearview Camera
  1. Remove Trim Panels: Carefully remove any interior trim or panels that cover the rearview camera. Use a flathead screwdriver to gently pry them loose, being cautious not to break any clips.
  2. Disconnect the Camera: Unscrew the camera from its mounting bracket, then disconnect the wiring harness.
  3. Install New Camera: Connect the new rearview camera to the wiring harness and secure it in place using the mounting screws.
  4. Reinstall Trim Panels: Press the trim panels back into place securely.
Step 2: Clear Error Codes
  1. Reconnect OBD-II Scanner: After installing the new camera, reconnect the OBD-II scanner.
  2. Clear Codes: Follow the scanner’s instructions to clear any DTCs that were previously stored.
Step 3: Final Testing
  1. Test the System: Start the vehicle and shift into reverse. Verify that the rearview camera activates and displays a clear image.
  2. Check for Guidelines: Ensure that the backup guidelines are displayed correctly.
  3. Recheck Codes: Perform a final scan to ensure no new error codes are present.
Conclusion

If the rearview camera still malfunctions after these steps, further diagnosis may be needed, possibly involving the multimedia system or a deeper electrical issue. If you're not comfortable with these repairs, consider consulting a professional automotive technician.