Yes, the sensor will operate from 9 to 33 volts

The ability of the sensor to detect an object depends largely on the position, size, shape, and composition of the object. A large, metal vehicle is much more likely to be detected than a small rock on the ground.

Is it pointed correctly?

Think of a cone shaped light beam coming out of the sensor, much like a flashlight. If the “light” isn’t shining on the object, then the sensor cannot see the object either. Refer to installation guide for further instructions on proper mounting position and angle (click here for installation guide download). Refer to horizontal and vertical detection patterns for the sensor (click here for detection pattern downloads).

Is the object within the range of the sensor?

The sensor is designed to detect objects within a certain range from the face of the sensor. If the object is outside this range then it will not detect the object.

Is there a large build-up on the face of the sensor?

Although the sensor will generally function well with some accumulation of dirt/snow/etc. , excessive build-up may decrease the ability of the sensor to detect objects.

Are you using an LED display?

Is the display’s power LED on?

• If the LED is not lit up, then there is likely a problem with power. Check all connections to verify that 9 to 33V is properly connected to the input power and ground wires. If the sensor uses the reverse signal for power, then place the vehicle in reverse and check to see if the display’s power LED comes on. Consult the installation guide for further instructions on proper power connections (click here for installation guide download)
• If all power connections are validated and the display’s power LED remains off, then there is a problem with either the sensor, display, or cable. If you have additional sensors, displays, and cables then try replacing each component, one at a time, starting with the display and ending with the cable. Each time that a component is replaced, check to see if the display’s power LED comes on.

Is the display’s power LED red?

• Normally, the display’s power LED is green to indicate that the display and sensor are functioning properly. If the display’s power LED turns red then there is either a problem with one of the sensors, the cable, or the display. The display will flash an error code that indicates the type of error. Refer to display’s user’s manual for details on how to further diagnose the problem using the error codes.

It’s not actually an LED; it’s a light sensor used to dim/brighten the LEDs for better viewing in all ambient light conditions.

No, the sensors should only be powered from a well regulated 9 – 33V DC power supply or battery.