Audiovox ASH400 User manual

-1-

IMPORTANT:

HITCHLOCK

KEY CODE

OBSTACLE SENSING SYSTEM

FOR

TRAILER HITCH MOUNTING

User’s Manual

ATTENTION:“REFERTOYOURKEYSFORCODE”

YOURKEY CODEIS:

CUSTOMERSERVICE (800)225-6074

Place in owner’s glove box for future reference

MODEL: ASH400

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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 and under normal circum-

stances 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. (Step weight should be limited to less than 250

pounds or 110kgs.)

Fig.F

Fig.D Fig.C Fig.E

Fig.A Fig.B

Fig.G

Kit Contents:

Your Obstacle Detection Kit contains the following items:

(1) Sensing Unit, with 2-pin Power harness, (Fig.A)

(1) 7-way Power Plug, with 18” 2-pin harness. (Fig.B)

(1) Chime Module (Fig.C)

Factory Programmed to match A and C

(1) Hitch Lock with (2) keys. (Fig.D)

(2) Foam Stabilizers (Fig. F)

(2) Hitch Lock Spacers (Fig. G)

(1) 2- Pin Reverse Power Hard Wire Kit: (Fig.E)

(1) 2-pin plug with 9 foot wire harness

(2) 22-18awg Red ScotchLock connectors

(6) 8” tie straps for securing wires

(1) inline mini blade fuse holder 2A

(2) spare blade fuses included

(2) butt splice red

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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. The detection signals are then translated into audible warnings

for the driver.

Your system will detect and notify the driver with 3 distinct “Tones” (beeps), which correspond with your vehicle’s

distance to objects in the detection zone. Upon engaging into reverse gear, you should hear 1 distinct tone. This

serves multiple functions:

1) Notification that the system is active and is scanning for objects in the detection field.

2) As a reminder that you have selected the reverse gear.

3) As an indication that your system has performed a self check. If more than one “quick beep” occurs

your system may need to be checked. If warning tones continue after reverse gear is initially selected, check for

obstacles behind the vehicle. If nothing is behind the vehicle refer to the troubleshooting guide.

Overview of your detection Zones and Notifications

Zone 3 Zone 2 Zone 1

0-3feet 3-5feet 5-7feet

When reversing towards an object, your detection will be as follows:

ZONE 1: 7 to 5 feet, your system will alert you with slow beeps.

ZONE 2: 5 to 3 feet your system will alert you with rapid beeps.

ZONE 3: 3 feet and inward, your system will alert you with a solid tone.

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Your Chime Module uses RF (radio frequency) technology to communicate with the control module. This receiver is

installed under the driver’s side dash board. The receiver features: (Fig C)

A) Internal Piezo speaker for efficient audio warning tones (beeps).

B) Reset style button access hole. Functions as the RF Receiver Hi/Lo volume toggle, and RF Receiver

programming port.

How to Adjust the Volume and Reprogram the RF Receiver

Your RF Receiver features a programming port. This port has two programming functions:

(1) Programming the RF Receiver to the sensing unit. (normally preset from factory).

(2) Hi/Lo volume selector.

Hi/Lo Volume selection:

To change the Volume setting on the Receiver, the sensing unit should be connected and the vehicle ignition

switch turned on, but “do not start the vehicle.” The shifter should be in the reverse gear with the parking brake set.

Using a toothpick, or similar non-metal “probe”, insert into programming port and press and release quickly. The

volume will change between high and low setting. Volume is preset at the time of installation. Please visit installing

dealer for adjustment.

* Programming: (Fig.B)

To program your receiver, or an additional or replacement receiver to the sensing unit, the vehicle must be in

reverse gear and the ignition switch turned on with the parking brake set. Using a toothpick, or similar non-metal

”probe”, insert it into programming port and press and hold for at least 5 seconds, then release. Upon releasing

the reprogramming button, you will hear one long confirmation chirp. After reprogramming, test the system by

slowly backing toward a large object that will be detected in each zone. If you still experience problems, call:

(800) 225-6074.

UnderstandingYour Chime Module

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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.

Constant Tone in Reverse Always check for object behind vehicle

Make sure sensors are clean of debris

Care

To prevent power wire harness damage, remove Hitch Unit and unplug all power wires prior to driving through

automatic car washes.

Keep sensors clear of any solid mass or debris to maintain accurate performance.

Troubleshooting (For additional information, please contact your installation center.)

Symptom Remedy

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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.

When reversing down a steep slope or driveway, gravel

and/or the road surface may cause momentary detection

signals due to the sensors following the sloping angle of

the vehicle

Reversing on loose gravel, rough surfaces, and pot holes

may produce intermittent detection due to the signal

bouncing off of reflective surfaces behind the vehicle.

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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.

Due to natural projection angle of the sensors, a natural

“no coverage” area is common with the system at the

outer corners of the vehicle. This may occur at about 0-

10” from the bumper’s outer corners.

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Installation Guide

ThisHitch-Mounted WirelessReverseObstacle Detection Systemis

forTrailerHitch HeightsOver 15” FromRoadSurface.

-9-

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 connect power at the reverse light

harness.

You can begin by inserting the 7-way

plug into the vehicle’s 7-way socket,

(Fig.A).

Insert the sensing unit into the trailer

hitch of the vehicle, (Fig.B).

Use the hitch lock to secure the

2” sleeve and the sensing unit into the

vehicle’s trailer hitch receiver, (Fig.C).

The RF chime module must be

connected to 12V ignition, and ground

under the front dash.

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INSTALLING THE PERMANENT CHIME MODULE

The Chime Module is designed to be installed under the dash. The tools required for this application are: -12 volt

Meter for testing power. (use of a Test Light is NOT recommended)

-Pliers

-Wire Crimpers

-Electrical Tape

Please Read and Understand all Instructions Before Starting Installation.

This adapter kit will use true, non-switching 12 volt ignition power, and ground. True ignition is defined more with

Step 1 and the chart below. Before starting the wiring process, find a suitable location to mount the Chime Module

itself. Use the enclosed screws or tie straps for mounting the Chime Module. NOTE: Use of other ignition power

sources will result in additional beeps while starting vehicle. This is a normal operation but some drivers may

prefer to hear only one power-on beep.

1) Red Wire - +12V ignition source. Connect this wire to a source that is 12 volts when the ignition key is

in the ON and start positions. Be sure that this source is off when the key is turned off.

2) Black Wire - Chassis Ground. Connect this wire to a solid metal part of the vehicle chassis. Be certain

to remove any paint or grease. Secure this wire with a self-tapping screw and ring terminal. Do not

confuse this wire with the thin green antenna wire that exits the Chime Module in the 3-pin connector.

3) Green Antenna Wire - Extend the green antenna wire as long as it will go, avoiding metal contact if

possible.

4) For reprogramming and adjusting the Hi/Lo volume control, refer to page 4 in the User’s Manual.

“Check means there is 12v at “key position”

TrueIgnition

Constant

Accessory

Ignition1

Start

WIRE TYPE

Key Position

Off Accessory Ignition On Start

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