Backup Camera

Since 2018 the National Highway Traffic Safety Administration has required backup cameras installed in passenger vehicles. The backup camera is one of many functions of a modern Infotainment or center display. The backup view is displayed on the vehicle’s center or infotainment display when the transmission is placed in reverse.

Center Display

If the vehicle has a good battery and the display has no image, suspect the circuit's fuse or wiring. Check for updates and TSB’s and inspect the wiring behind the display to ensure the display is getting power. A backup camera or infotainment center system reset may be necessary. Check with the vehicle’s manufacturer for reset procedures.

Check with the manufacturer before cleaning the screen. Abrasive and chemical based cleaners may damage or cause bubbles in the screen.

Backup Camera Module

The camera module is mounted on the back of the vehicle, typically the trunk or rear hatch. Check the camera lens for dirt or wax distorting the camera’s view. Check with the vehicle’s manufacturer before cleaning the lens. Most recommend avoiding abrasive and harsh cleaners and flushing the lens with water. If the camera operates intermittently and the image comes and goes, suspect a problem with the wiring or a faulty connector. Inspect the harness fastened to the moveable hinge for wear or damage and remove the trunk or hatch panel to inspect the camera’s wiring and connectors.

Aftermarket Kits

Aftermarket kits are available. Follow the same precautions and diagnosis as factory backup systems. These systems often tap into the backup light system electrical circuit. Inspect the connection and wiring. Check the circuit’s resistance with an ohmmeter. If the camera operates intermittently and the image comes and goes, suspect a problem with the wiring or a faulty connector. Remove the trunk panel to inspect the camera’s wiring and connectors.

Perform a voltage drop test on suspect connections. Voltage drop is the voltage lost as it passes through a component or resistance in a circuit. For example, the connector above is loose or damaged and dropping over 2 volts, depriving the right-side backup light of necessary voltage.