© 2003 Directed Electronics, Inc.
N9400T 3/03
The buzzer should be mounted in an area inside the
vehicle where it can be heard clearly by the driver.
The control module should be located in the trunk
area securely mounted away from any moving parts
and in an area free of moisture and heat
■
RED Wire
- Connected to the wire that
provides (+)12V when the vehicle’s
reverse light is on.
■
BLACK Wire
- Connected to ground.
■
RED Connector
- The buzzer is plugged
into this port.
■
WHITE Connectors
- The sensors are
plugged into these ports.
NOTE:
To avoid incident during testing, a second person
should watch the rear of the vehicle.
Place the gearshift in reverse. The buzzer will
emit two quick beeps indicating the system is on.
Back up the vehicle slowly.
The first beep pattern indicates the vehicle is 5 ft.
to 5.5 ft. away from the nearest obstacle. As the
vehicle gets closer to the object, the buzzer emits
a different beep patterns. Please refer to the
Detection Range
chart for pattern description.
Be aware that certain shapes will mislead the
sensor and it is necessary to test the sensor
backing up against multiple shaped objects.
Objects with a rounded smooth surface may
mislead the reflecting signal.
Detecting
Stage
Distance
Buzzer Sound
1
5.5 ft. to 5 ft.
Two Beeps
2
5 ft. to 3.25 ft.
Three Beeps
3
3.25 ft. to 2.25 ft.
Four beeps
4
2.25 ft. to 1.5ft.
Five beeps
5
1.5 ft. to 1 ft.
Three beeps then
four quick beeps
6
1 ft. to 0 ft.
One long beep
NOTE:
Stop the vehicle when the buzzer makes a constant
sound.
Detection Range
Testing
BUZZER
SENSOR 2
SENSOR 3
BLACK
RED
REVERSE
LIGHT
4
3
2
1
SENSOR 4
SENSOR 1
(+)12V
Wiring Instructions
Warning Buzzer
