how to troubleshoot the rearview camera in my Toyota Highlander Third Generation (2014-2019)

Solution

1. Preparation

• Gather tools: socket set, multimeter, OBD-II scanner, and a flashlight.
• Ensure the vehicle is parked on a level surface with the engine off.
• Disconnect the negative battery terminal to prevent electrical shorts.

2. Inspect and Clean the Camera

• Sub-steps:
  1. Locate the rearview camera mounted above the license plate.
  2. Remove the camera housing cover using a socket set.
  3. Clean the camera lens with a microfiber cloth to eliminate dirt or moisture.
  4. Reassemble the camera housing and secure it properly.

3. Check the Fuse

• Sub-steps:
  1. Open the fuse box located under the dashboard on the driver's side.
  2. Refer to the fuse diagram to locate the fuse for the rearview camera.
  3. Remove the fuse using fuse pullers or pliers and inspect it for continuity.
  4. Replace with a new fuse of the same amperage if blown, and reassemble the fuse box.

4. Test the Wiring Connection

• Sub-steps:
  1. Access the wiring harness connected to the rearview camera.
  2. Visually inspect for any signs of damage or corrosion.
  3. Use a multimeter to check for voltage at the connector while the vehicle is in reverse.
  4. If voltage is present but the camera still does not function, consider replacing the camera.

5. Reconnect the Battery

• Reconnect the negative battery terminal and ensure connections are tight.
• Start the vehicle and shift into reverse to test the camera operation.