The Rear View Radar is an object detection system that instantly detects any obstruction at the vehicle's rear, audibly alerting the driver to its presence and distance.
While this article includes mounting and wiring recommendations for the system, vehicle differences require installation variations. The utmost care should be taken during any installation to avoid damaging the vehicle or system.
Installation Process
- Wiring Diagrams
- Control Box
- Power Harness & Fuse Holder
- LED Indicator
- Monitor Transition Cable
- Buzzer
- Sensors
- Side Cameras
Wiring Diagrams
As an object detection system, the Rear View Radar requires a way to alarm the vehicle’s operator. There are two main options for this complete system:
Rear Camera & Monitor
When a rear camera and monitor are integrated with the Rear View Radar, the monitor produces the system’s visual and audible alerts. Additionally, the rear radar’s detection zones overlay the camera's image.
Buzzer
The Rear View Radar system includes a buzzer that audibly alerts the operator of an obstruction within the detection range. As an obstruction gets closer to the vehicle, the alerting will increase in rate, until it becomes a constant tone within the detection’s “Zone 1.”
Control Box
Installation Requirements
When selecting an installation location, consider that the box must be:
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Within 5 m (16.5 ft) of the sensor.
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- This can be extended to 15 m (49 ft) with a 10 m CAN Bus Extension Cable.
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- Within 10 m (98 ft) of the camera
- Within 30 m (33 ft) of the monitor.
- In an interior cabinet or an exterior location that will not be directly subjected to high-powered jet streams.
Mounting
The Radar Control Box is mounted on the vehicle using four (4) M5 x 19mm Long Hex-Head Self-Drilling Screws.
- Locate an appropriate mounting location, considering the requirements above.
- Hold the control box in the desired location and mark the four (4) mounting holes on the vehicle.
- Create four (4) pilot holes in the marked mounting hole locations with a small drill bit.
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Mount the control box with four (4) M5 x 19mm Long Hex Head Self-Drilling Screws and an appropriate socket drill.
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- Do not overtighten the screws.
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Power Harness & Fuse Holder
The power harness connects to the Control Box's “E” port and the vehicle's power, ground, and reverse signal wires. The fuse holder should be connected as close to the power source as possible before extending it towards the control box.
- Connect the Power Harness to the “E” port on the control box.
Power Connections
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Locate the vehicle’s chassis (or battery) ground.
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- This should be a clean grounding stud or screw or a negative terminal of a battery.
- IMPORTANT! To prevent ground loops, all grounds from Pro-Vision equipment should be connected to a single point on the vehicle.
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Locate the vehicle’s accessory or ignition wire.
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- Use a digital multimeter to verify the selected wire connections.
- The wire should read +10 Vdc to +32 Vdc.
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Connect the radar harness’s black ground to the vehicle ground.
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- Use 16 AWG black extension wire (18 AWG minimum) as needed.
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Connect the red 3A fuse holder as close as possible to the power source.
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- Cut and strip both ends of the fuse holder to connect it.
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Connect the radar harness’s red power wire to the 3A fuse holder.
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- Use 16 AWG red extension wire (18 AWG minimum) as needed.
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Trigger Connections
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Locate the vehicle circuits that provide voltage only when the vehicle is in reverse.
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Use a digital multimeter to verify that the wire only has voltage when the vehicle is set in reverse, not when the brake lights are activated.
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- Perform this test while the motor is running.
- Some circuits will behave differently between accessory and full motor power.
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Use a digital multimeter to verify that the wire only has voltage when the vehicle is set in reverse, not when the brake lights are activated.
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Connect the radar harness’s white wire to the vehicle’s reverse signal wire.
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- Use 16 AWG extension wire (18 AWG minimum) as needed.
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Alarm Out
The yellow signal wire on the power harness is an optional auxiliary output that can be connected to an external device as an additional alerting system, such as a backup alarm or light. When Alarm Out is activated, the ground circuit is closed. A maximum of 1 A may be passed through this circuit.
Monitor Transition Cable
The monitor transition cable is installed on the control box's “A” port and can be extended a maximum of 30 m (98 ft) with an AHD extension cable; exceeding this may cause visual noise on the monitor.
- Connect the Transition Cable to the “A” port on the control box.
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Connect the Transition Cable to the Monitor and/or Ranger DVR.
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On a 3-Channel or 4-Channel monitor:
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- Connect the Transition cable to the monitor’s brown connector.
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With a Ranger DVR or Multiplexer:
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- Connect the Transition cable to an A/V Splitter cable.
- Connect the red end to a camera connector on the Ranger DVR or Multiplexer.
- Connect the black end to the monitor’s brown connector.
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On a 3-Channel or 4-Channel monitor:
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Buzzer
When a monitor is installed alongside the Rear View Radar, the monitor will visibly and audibly alert the driver, making the buzzer optional. If the buzzer is not installed, place the Waterproof GX12-4M Cap Cover over the control box's "B" port.
Otherwise, the buzzer is installed on the control box's “B” port and can be extended up to 30 m (98 ft) with an A/V AHD extension cable; exceeding this may cause performance issues. The buzzer is not waterproof and must be mounted in the cab's interior.
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Mount the buzzer in a secure location.
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- It does not need to be visible, but should be audible to the driver.
- If using double-sided adhesive, thoroughly clean the mounting area and allow it to dry.
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- Route and connect the buzzer’s cable to the “B” port on the control box.
Sensor
The sensor should be mounted on the center rear of the vehicle, perpendicular to the ground, roughly 1 m (3.2 ft) above ground, with 30 cm (12 in) leeway. If paired with a camera, the sensor should be aligned vertically with the camera. Otherwise, the sensor may detect obstructions not visible on the monitor, which could lead to driver confusion.
When selecting a mounting location, visually verify that the vehicle body will not obstruct the detection zone.
Mounting
- Select the mounting location for the sensor, referencing the mounting guidelines above.
- Hold the sensor’s silicone gasket to the vehicle and mark the two (2) mounting and one (1) center cable hole.
- Drill the three (3) pilot holes using a small drill bit.
- Drill a 7/8” hole over the center pilot hole for the sensor’s cable.
- Place the rubber gasket against the vehicle body and run the sensor’s cable through the hole.
- Check the backside of the sensor for the orientation arrow, which should point down to the road when the sensor is installed.
- Hold the sensor and gasket flush to the vehicle body, aligning them to the pilot holes.
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Mount the sensor with two (2) M5 x 19mm Long Hex-Head Self-Drilling Screws and an appropriate socket drill.
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- Do not overtighten the screws.
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Connections
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Connect the sensor to the CAN Bus Data extension cable.
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- The extension cannot exceed 15 m (50 ft) without causing performance issues.
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- Route the CAN Bus Data cable down the length of the vehicle, towards the radar control box.
- Connect the sensor’s extension cable to the “C” port on the control box.
Rear Camera
The installation process for the rear camera varies depending on the vehicle and camera type. Once the camera is installed, it should be connected to the “D” port of the control box.
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Connect the rear camera to an A/V extension cable.
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- The extension cannot exceed 30 m (98 ft) without causing performance issues.
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- Route the extension cable towards the radar control box.
- Connect the A/V extension cable to the “D” port on the control box.
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