how to fix the rearview camera not working on Toyota Highlander Fourth Generation (2020-present)

Toyota Highlander Fourth Generation (2020-present)

Error Codes

1-2 hours

Time

medium

Difficulty

medium

Severity

3 min read

559 words

Problem Statement

Learn how to diagnose and fix the rearview camera not working on Toyota Highlander (2020-present). Step-by-step guide with tools and solutions.

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the battery before working on electrical components to prevent electrical shock.

Symptoms

•Rearview camera image is blank or not displaying.
•"Camera Unavailable" message on the infotainment screen.
•Delayed or no response when shifting into reverse.
•Distorted or fuzzy image when the camera does activate.
•Camera activation light not illuminating.

Diagnostic Steps

1
Check the vehicle's display settings to ensure the rearview camera is enabled.
2
Inspect the rearview camera lens for dirt, damage, or obstructions.
3
Scan the vehicle's OBD-II system for any error codes related to the camera system.
4
Verify the connections and wiring harness leading to the rearview camera for any damage or loose connections.
5
Test the camera's power supply using a multimeter to confirm it is receiving voltage.
6
Examine the infotainment system for software updates that may address camera issues.

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
•Socket set
•Flathead screwdriver
•Microfiber cloth

Parts Required

•Replacement fuse (if blown)
•Rearview camera (if damaged beyond repair)

Related Faults

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Diagnostic Steps

1
Check the vehicle's display settings to ensure the rearview camera is enabled.
2
Inspect the rearview camera lens for dirt, damage, or obstructions.
3
Scan the vehicle's OBD-II system for any error codes related to the camera system.
4
Verify the connections and wiring harness leading to the rearview camera for any damage or loose connections.
5
Test the camera's power supply using a multimeter to confirm it is receiving voltage.
6
Examine the infotainment system for software updates that may address camera issues.

Solution

1. Preparation

Gather tools: OBD-II scanner, multimeter, socket set, flathead screwdriver, and cleaning supplies.
Ensure the vehicle is parked on a level surface and set to "Park."
Disconnect the negative battery terminal to avoid electrical shock.

2. Inspect and Clean the Camera

Remove any dirt or debris from the rearview camera lens using a microfiber cloth and mild cleaner.
Check for any physical damage to the camera housing.

3. Check Connections

Remove the rear trim panel to access the camera wiring harness.
Inspect the connections for corrosion, damage, or looseness.
Reconnect any loose connectors and ensure all connections are secure.

4. Test Power Supply

Use a multimeter to check the voltage at the camera's power connector.
If no voltage is detected, trace back to the fuse box and check for a blown fuse related to the rearview camera (refer to the owner’s manual for fuse locations).
Replace the fuse if necessary and retest the power supply.

5. Software Update

If the camera is operational but still malfunctioning intermittently, check for any software updates for the infotainment system.
Connect the vehicle to the dealer’s diagnostic tool or use a compatible OBD-II scanner that supports infotainment updates.

6. Reassemble Components

Reattach the rear trim panel and ensure all clips and screws are secured.
Reconnect the negative battery terminal and ensure it is tight.