how to fix the rearview camera not working in 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

551 words

Problem Statement

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

Affected Component

Electrical

Estimated Time

1-2 hours

⚠️ Safety Warnings

Important safety information - read before proceeding

•Disconnect the vehicle battery before working on electrical components.
•Allow the vehicle to cool down before performing any inspections.

Symptoms

•Rearview camera display is blank
•"Check surroundings" warning message appears on the screen
•Camera image is distorted or fuzzy
•No response when shifting into reverse
•Backup assist features (if equipped) are inactive

Diagnostic Steps

1
Check the vehicle’s fuse box for any blown fuses related to the rearview camera system.
2
Inspect the rearview camera lens for dirt, debris, or physical damage.
3
Use an OBD-II scanner to check for any error codes related to the camera or multimedia system.
4
Verify the camera connection by inspecting the wiring harness for loose or corroded connections.
5
Test the display unit by checking if other functions (like navigation or radio) are working properly.

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

•Socket set
•Multimeter
•OBD-II scanner
•Trim removal tool
•Cleaning supplies (soft cloth, cleaning solution)

Parts Required

•Replacement fuse (if applicable)
•Replacement rearview camera (if damaged)

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Diagnostic Steps

1
Check the vehicle’s fuse box for any blown fuses related to the rearview camera system.
2
Inspect the rearview camera lens for dirt, debris, or physical damage.
3
Use an OBD-II scanner to check for any error codes related to the camera or multimedia system.
4
Verify the camera connection by inspecting the wiring harness for loose or corroded connections.
5
Test the display unit by checking if other functions (like navigation or radio) are working properly.

Solution

1. Preparation

Tools Required: Socket set, multimeter, OBD-II scanner, cleaning supplies (soft cloth, cleaning solution).
Safety Warnings: Disconnect the vehicle battery before working on electrical components.

2. Inspect and Clean the Camera

Step 1: Clean the rearview camera lens using a soft cloth and appropriate cleaning solution to remove any dirt or debris.
Step 2: Check the physical condition of the camera for cracks or damage. If damaged, replacement may be necessary.

3. Check Electrical Connections

Step 1: Remove the rear trim panel to access the rearview camera wiring harness (use a trim removal tool).
Step 2: Inspect the wiring harness for any loose, frayed, or corroded wires. Ensure all connections are secure.
Step 3: Use a multimeter to test for continuity in the camera wiring. Repair or replace any faulty wiring as necessary.

4. Replace the Fuse (if applicable)

Step 1: Locate the fuse box and identify the fuse linked to the rearview camera system (refer to the owner’s manual).
Step 2: Remove the blown fuse using fuse pullers and replace it with a new fuse of the same amperage.
Step 3: Reconnect the battery and test the camera.

5. Reprogram the Camera System (if necessary)

Step 1: If the camera still does not work, connect an OBD-II scanner to the vehicle.
Step 2: Check for any stored error codes. Follow the scanner’s instructions to clear any codes.
Step 3: If the issue persists, consult the dealership or a professional technician for potential reprogramming of the multimedia system.