4
The Dolphin Parking Sensors are designed
for 12v vehicles with polycarbonate bumpers.
Results cannot be guaranteed when fitting to
metal bumpers and will not work when fitted
to bull bars or other enclosed steel frames.
In this instance we suggest using brackets for
mounting under the bumper, which can be
supplied direct by us if required.
The sensors should be installed between
40-70cm off the ground and between 30-
40cm apart. Where possible they should be
fitted level and evenly across the bumper for
best results and overall appearance but the
sensors will still work if this is not possible.
If in doubt or you have a potential issue
with a tow-bar or rear mounted spare wheel
we advise powering up the sensors off
the reversing light feed or suitable battery
power (a 9v square PP3 type will suffice
to power individual sensors) and holding
a sensor where you are planning to mount
it, to see that its not detecting the obstacle
in question before drilling the bumper. This
is also advisable if you are mounting them
rather low or if the bumper is angled down
to the ground where you plan to install them.
Before drilling the bumper, check that there is
clearance behind to house the sensors, which
will require approx 25mm of depth before
you reach any steel bars or fixing brackets.
It is not always necessary to remove the
bumper covering to drill the sensors, but you
may find this easier in the long run. If you
are unsure where to fit the sensors please
check with your local car dealership or have
a look on their forecourt to see where the
sensors have been fitted on similar models.
Once you have decided on the location for
your sensors we would recommend applying
some masking tape or similar adhesive on
which to etch the exact location for the drill
bit and double check your measurements.
This tape will then also hold the drill bit and
remaining paint work in place. The correct
drill bit will be supplied with the Dolphin
Parking Sensor
TM
kit supplied which in most
instances will be 21mm in diameter. When
drilling do not push hard and force the drill
bit, leave it to do the hard work.
When you have drilled the holes pass the
sensor cabling through and push the sensors
into place. You may find two small holes
or dots on the back of the sensors, and
the sensor should be fitted with these dots
aligned vertically. Foam padding is located
on the sides of the sensors and this will
adequately hold the sensors in place once
fitted.
Generally, on the left hand side of the boot
under the interior carpet lining, you will
find a grommet with various cables passing
through into the boot compartment. You
should route the parking sensors to utilise
this grommet and feed the sensor cabling
into the boot compartment. Otherwise
a small hole can be drilled into the side
foot-well of the boot and secured using a
rubber grommet or silicon sealant. Secure
any excess cabling under the bumper with
suitable retainers running spare cable back
and forth in straight lines.
To power the system you will need to gain
access to the back of the light cluster to
identify the cables required. Please see
the installation diagrams in the manual
which refer to your particular model for
the connections required. All connections
should be made to the cables as close to
the rear light cluster as reasonably possible.
The circuitry of wires can be tested with a
voltmeter or by skinning a bit of insulation
off a cable to check it carries the correct
voltage when required. Cables can then either
be twisted onto this bare wire or connected
using a suitable scotch lock connecter.
Most modern cars have Multiplexed or
CANBUS wiring systems. Dolphin Parking
Sensors
TM
can be fitted on such cars as you
are just connecting in most cases for a 12v+
feed and Ground. Multiplexed wires carry
coded information signals and should not be
touched. In all cases we would advise against
cutting any original wires on the vehicle.
GENERAL INSTALLATION GUIDE
