Audiovox ACAB104 User manual

4 Sensor Backup Obstacle Sensing System
Model: ACAB104
Users Manual
Features:
•Four reversing sensors detect obstacles between 1- 7 feet
•Includes 0°, 5°, and 10° angle sensor sleeves to fit most
bumpers
•Activates only when vehicle is in reverse
•Will not drain battery or void factory warranty
•Includes speaker/buzzer with 3 settings - high, low, and off
•Four detection zones give the following warnings:
1 = slow beep within 5-7 feet
2 = medium beep within 3-5 feet
3 = fast beep within 1-3 feet
4 = steady tone within 1 foot
•Works with any vehicle
0° 5° 10°

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Warnings
This product is intended to assist in safe driving by signaling the driver of
obstacles behind the vehicle while the vehicle is in reverse. You, as the
driver, are solely responsible for the safe operation of your vehicle and the
safety of your passengers according to your local traffic regulations. Do
not use any features of this system to the extent it distracts you from safe
driving. Your first priority while driving should always be the safe
operation of your vehicle. Audiovox Electronics Corporation cannot accept
any responsibility whatsoever for accidents resulting from failure to
observe these precautions or safety instructions.
1. This product utilizes high voltage. Any unauthorized modifications
or damage to the product may result in electrical shock. Handle all
components with care. Inspect regularly for damage to
components and cabling.
2. You are responsible for ensuring that the installation of this
product does not void or affect the vehicle manufacturer’s
warranty. Audiovox Electronics Corporation or its subsidiaries are
not liable in full or in part for improper installation resulting in
loss or damage to your property, or for voiding all or part of the
vehicle manufacturer’s warranty.
3. Do not apply excessive force to any of the components contained
within this kit. Excessive force used before, during or after
installation that results in a damaged or non-functional part will
void all warranties.
4. Please follow the procedures in this installation manual. Improper
installation or modification of this product will void all warranties.

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Product Description
This 4 Sensor Backup Obstacle Scanning System is designed to assist the
driver by providing an alert when an object is behind the vehicle whenever
the vehicle is shifted into reverse. Never rely solely on this product to
ensure the area is clear of children and/or obstructions. This product is not
intended to replace existing safety procedures, but rather to add an
additional safety tool for your vehicle.
Using the Sensor System
Your four sensor backup obstacle sensing system transmits and receives
ultrasonic waves from the four sensors mounted in your vehicle’s rear bumper.
As the transmitted waves bounce off obstacles behind your vehicle and are
received back by the sensors, the unit’s control box converts these waves into
warning sounds, or beeps, which alerts you, the driver, of obstacles behind
your vehicle.
Your four sensor backup obstacle sensing system will signal in five increasing
warning tones (beeps) which correlates the vehicle’s distance from an
obstacle. When the vehicle’s reverse gear is engaged, the system will emit a
quick beep. This indicates that the system is on and the sensors are operating.
The following chart shows the detection range and beep associated with the
distance of an object from the rear bumper.
Distance
(meter) Distance (feet) Type of Beep
>1.5 >4.9 No beep
1.5-1.0 4.9-3.3 Slow repeating
beep
1.0-0.7 3.3-2.3 Medium
repeating beep
0.7-0.4 2.3-1.3 Faster
repeating beep
<0.4 <1.3 Solid beep
When towing a trailer, the system will emit a solid beep. Move the switch on
the speaker to the “off” position to turn off the speaker. Remember to turn the
switch to the “high” or “low” position when the vehicle is not towing a trailer.

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Specifications
Power Supply DC12V
Current Draw <180mA
Detecting Distance 1 to 7 ft
Sensor Cable Length 23 ft
Control Box Size 4.125”x 3”x .830”
Operating Temperature Range -40°F~ 176°F
Maintenance
Though your backup system requires minimum care, you should maintain its
condition and performance using the following the guidelines:
•Keep the control box away from moisture, extreme heat or cold.
•Keep the sensors free from snow, ice, and debris.
Troubleshooting
Problem Solution
System does not beep
when reverse gear is
engaged and object is in
range
1. Check if ignition/reverse light on
2. Check power cable connection
3. Check switch on speaker
System beeping without
obstacle behind vehicle 1. Remove anything mounted on the vehicle higher than the
sensor
2. Verify sensor is installed at the
correct height
3. Verify sensor is in the correct
position
4. Check all connections
5. Reduce sensitivity
Low sensitivity 1. Clean sensors
2. Check all connections
3. Check if voltage is normal
4. Set sensitivity to high
Re-start often Poor contact of power cable or
ground
No obstacles present and
system is beeping Check sensors for snow, ice, heavy rain, and/or debris

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