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- 3 -

Installation and Wiring

 

 
IMPORTANT:

 

(a)

 

Read this manual thoroughly before proceeding to installation. You can also have the system 

installed by a professional installer such as your local auto mechanic/auto electrician/car stereo store. (b) Turn off 
the engine and ACC during installation. (c) Double check that all wiring is correct before power on the system. (d) 
During installation, avoid flatting, perforating, cutting, and extending the wires of sensors to reduce unnecessary 
signal loss. 

 

1. Installation of the Main Control Box   

a)

  Find a flat and clean surface inside the vehicle close to driver's side taillight assembly as the main control 

box gets its power from the back up light and has all the rear sensors plugged into it. For trucks, you may 
install it inside the driver's side taillight assembly. Keep it away from areas of high heat, high humidity, direct 
water contact, direct sunlight, and electromagnetic devices.   

b)

  Place the main control box in place temporarily without securing it to the vehicle as you may need to adjust 

the location of the main control box while wiring. 

c)

  After completing all wiring, use the double-sided self-adhesive with Velcro attachment included to secure the 

main control box to the vehicle.   

 

2. Installation of the Wireless Digital Display   

a)

  Find a place for the wireless display on top of the dashboard where the driver can see it easily. Place the 

wireless display in place temporarily without securing it to the top of the dashboard.   

b)

  After completing all wiring, secure it with the included self-adhesive on the bottom of the display base.   

 

3. Wiring Power Supply to the Wireless Digital Display   

a)

  Insert the earphone type plug of the power cable of the Wireless Display into its socket on the back of the 

display.  

b)

  Locate the +12V and the (-) negative wires from the reverse gear for the back up lights under the dashboard 

or near the reverse gear.     

c)

  Strip 1/2" of the wires found. 

d)

  Connect the red wire of the power cable to the +12V wire (Fig. 4) 

e)

  Connect the black wire of the power cable to the (-) negative or chassis ground (Fig. 4). 

f)

  Wrap the connections with vinyl electrical tape. 

 
Note:

 You can also connect the red wire to the ignition switch or ACC. But connecting it to the reverse gear or 

back up light is better as the display only needs to work when the vehicle is put in reverse. 
 

4. Wiring Power Supply to the Main Control Box   

a)

  Insert the 4-pin plug of the power cable of the main control box into its socket on the side of the main control 

box (Fig. 3).   

b)

  Locate the +12V and the (-) negative wires from the back up light near the taillight assembly. If necessary, 

remove the taillight assembly to locate them. 

c)

  Strip 1/2" of the wires found. 

d)

  Connect the red wire of the power cable to the +12V wire (Fig. 3) 

e)

  Connect the black wire of the power cable to the (-) negative or chassis ground (Fig. 3). 

f)

  Wrap the connections with vinyl electrical tape. 

 

5. Installation of the Sensors 
 
IMPORTANT: (a) 
To avoid false alert from the system detecting the ground, the sensors should be mounted 
between 50cm to 80cm (20" to 32") above the ground and the face of the sensors need to be vertical or slightly 
upward angled (Fig. 2). (b) Horizontally, the sensors should be equally spaced if possible or symmetric to the 
center of the bumper. (c) The outer two sensors should be mounted about 15cm (5.9") from the corner of the 
bumper for better corner coverage.

   

Note:

 The bumper surface for mounting the sensors should be as flat and vertical as possible. 

 

a)

  Refer to Fig. 1 for mounting height and position of the sensors. 

b)

  Work under the rear bumper to check the internal structure of it before marking the positions for drilling holes. 

If the view is blocked, you may need to remove the bumper. 

Summary of Contents for B-2681-04

Page 1: ...Wireless Digital Display with Built in Audible Alert For Cars VANs SUVs and Trucks MODEL B 2681 04 B 2691 04 CE ISO9001 HY Technologies y http parkingsensors net y http parking sensors hyt com Copyright 8 2006 HY Technologies y Milpitas y California y USA All Rights Reserved ...

Page 2: ...ning Stop zone Designed for cars VANs SUVs and trucks Distance display in meters 12 Month Warranty Specifications CE and ISO9001 Approved Wireless Display RF Range 0 20m 65 6ft RF Frequency 433KHz Operating Voltage DC 10V 15V Detecting Range 0 3m 2 0m 1ft 6 6ft Displayed as 0 0 when less than 0 3m 1ft Measuring Error 0 1m 0 3ft Sensor Detection Angle 90 Detection Response Time 300ms Audible Alert ...

Page 3: ...can be mounted up to 20m 66 feet away from the main control box still requires its own 12V power supply This is especially convenient for installation on long vehicles Seven 7 LED Lights 2xGreen 3xYellow 2xRed on each side of the wireless distance display indicate both orientation of obstacles and Safe Warning Stop zone The audible alert beeper is built in the wireless display It beeps faster as v...

Page 4: ...e display b Locate the 12V and the negative wires from the reverse gear for the back up lights under the dashboard or near the reverse gear c Strip 1 2 of the wires found d Connect the red wire of the power cable to the 12V wire Fig 4 e Connect the black wire of the power cable to the negative or chassis ground Fig 4 f Wrap the connections with vinyl electrical tape Note You can also connect the r...

Page 5: ...isplay should show the correct obstacle distance Repeat the procedure for the remaining sensors Note When you shift into reverse gear the system will beep once indicating it is activated Testing Your New Backup Parking Sensor System Back your vehicle slowly about 3 miles per hour to approximately 2 5m 8 2 feet from a flat vertical surface such as a wall Continue to back up slowly and check the per...

Page 6: ...cting any obstacle Sensors not connected Faulty display Faulty main control box Check sensor connection Replace the display Replace the main control box Contact Technical Support for help System showing distance but no beeping or system beeping but no distance display Faulty display Faulty main control box Replace the display Replace the main control box Contact Technical Support for help Wrong LE...

Page 7: ...collisions or damages that take place when parking your vehicle with the use of the Parking Sensor System We will not be liable for any claims actions suit proceedings costs expenses damages or liabilities arising out of the use of this product By purchasing installing and using such a Parking Sensor System customers agree to take full responsibility of use of such System HY Technologies y http pa...

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