MODEL: ASH300 OBSTACLE SENSING SYSTEM FOR TRAILER HITCH MOUNTING Owner/Installation Manual IMPORTANT: HITCHLOCK KEY CODE ATTENTION: “REFER TO YOUR KEYS FOR CODE” YOUR KEY CODE IS: CUSTOMER SERVICE (800) 225-6074 Place in owner’s glove box for future reference -1-
Congratulations Your purchase of the Hitch Mounted Wireless Reverse Obstacle Detection System will provide you with a state of the art, highly sophisticated, ultrasonic obstacle detection device for your vehicle. It is manufactured to ISO standards, and under normal circumstances requires little maintenance. Under no circumstances should you attempt to open the Sensing Unit or RF Receiver. Doing so will void all manufacturer’s warranties. (Step weight should be limited to less than 250 pounds or 110kgs.
Understanding your Obstacle Detection System’s functions Your system sends and receives Ultrasonic Signals that are projected from sensors mounted in the Sensing Unit. As the signals “echo” off of objects in the detection field, and return to the sensors, the systems’s microprocessor exports them to its onboard, output signal transmitter. These signals are transmitted through Radio Frequency Waves to the Chime Module located in the vehicle.
Understanding your Wireless Receiver Your Wireless Receiver uses RF (radio frequency) technology to communicate with the control module. This receiver plugs into a vehicle Cigarette lighter or other similar power source. The receiver features: (Fig A) A) Internal Piezo speaker for efficient audio warning tones (beeps). B) Slide cover to to adjust volume of speaker or to cover L.E.D. Cover slides front to back to either cover speaker ports to lower volume levels, or to cover L.E.D if lighting is not desired.
Troubleshooting (For additional information, please contact your installation center.) Symptom Remedy No Function in Reverse Check power to receiver and transmitter Reprogram Receiver Check Fuse in Receiver Check in-line fuse in Sensing Unit Check 7-way harness Check Ground Wire Inconsistent Operation Refer to page 4 Reprogramming Wireless Receiver.
Situations Where Momentary, or No Detection is Experienced Your system utilizes highly advanced Ultrasonic technology to locate objects in your vehicle’s path. Under some circumstances however, an object may not be detected. Always use extreme caution when reversing, looking behind your vehicle and maintaining speeds of less than 3 miles-per-hour. A small object, which is under your bumper or too close to the vehicle, may not be detected due to the dispersion of the sensor’s signal.
Reversing at an angle towards a partial wall or other large flat surface may refract ultrasonic signals, causing an object not to be detected. If reversing towards a 90 degree angle, such as a corner of a wall or pillar, sensor detection pattern will refract as shown until vehicle is close enough to receive signal back from corners. In such situations, vehicle could reach very close distances before detecting.
Installation Guide This Hitch-Mounted Wireless Reverse Obstacle Detection System is for Trailer Hitch Heights Over 15” From Road Surface.
Your system can be installed with a few easy steps, providing your vehicle comes equipped with a 7-way connector socket and a standard 2” Hitch Receiver. If your vehicle is not equipped with a 7-way connector, you can obtain a power connection using the provided 2-pin reverse power hardwire kit and retreive power at the reverse light harness. You can begin by inserting the 7way plug into the vehicle’s 7way socket, (Fig.A). Insert the Sensing Unit into the Trailer Hitch of the vehicle, (Fig.B).
Hitch Receiver Conversion and Hardwire Kit Most vehicles come equipped with a 1¼” or a 2” trailer hitch receiver. Your system can be converted to fit the vehicle’s receiver by simply sliding the 2“ sleeve (A), off the center of the 1¼” system shaft for use on 1¼” hitch receivers. The hitch-lock kit (C,D,E) comes with 2 sizes of pin shafts (C and D) to accommodate the 2” and 1¼” hitch pin holes.
INSTALLING THE UNIVERSAL 2 PIN “REVERSE POWER” HARD WIRE KIT This adapter is designed for use with vehicles without a 7-way factory trailer connection. The tools required for this installation are: - 12Volt Meter for testing power (use of a Test Light is NOT recommended) - Pliers - Wire Crimpers - Electrical Tape WARNING: Do not plug 2 pin harness into factory (OEM) or aftermarket 4 pin connectors, and if used may cause damage to the unit and void any implied warranty.
The Universal 2-Pin Hardwire Kit is For Use in Vehicles NOT Equipped with a Factory 7-Way Connector A. Reverse Bulb B. Reverse 12Volt Wire C. Reverse Ground Wire D. Scotch Locks E. Inline Fuse Holder F. Butt Connector G. 2 Pin Harness H. “Red” Wire from supplied harness I.
Warranty & Limitations of Coverage Congratulations on the purchase of your hitch mounted obstacle detection system. Your system is a highly sophisticated, ultrasonic obstacle detection device. It is manufactured to exacting standards, and under normal circumstances requires little maintenance. Under no circumstances should you attempt to open the sensing unit or chime module. Doing so will void all manufacturer’s warranties.
Disclaimer This reverse obstacle detection system is strictly a driver assistance aid device, and should not be relied upon as a substitute for safe driving practices. Use common sense when reversing, and always follow recommended safe driving guidelines from your local, State or County Department of Motor Vehicles regarding engagement of reverse gear and backing up of your vehicle.
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© 2006 Audiovox Electronics Corporation Printed in China 128-7391 -16-