The system is designed to "beep" twice when
reverse gear is engaged (and disengaged). The system is performing a self test
and also informs the driver that the system is functioning.
The most common problem is when the system constantly
beeps, the
reasons are:
(1) The sensors are mounted too low to the ground and
they are picking up the ground causing the buzzer to constantly sound. The
minimum recommended height is 50cm from the ground when mounted on a vertical
surface. Fitting the sensors lower than this will cause
the problem described. You can test this by listening to the tone, if you have a
stage 2 or 3 alarm and the tone changes when you move closer to the sensor then
it is likely to be the ground that is being picked up.
If you have problems with the ground being
detected then we can exchange your CPU for a low mount version which has
a reduced range of approximately 30cm in order to allow the sensors to
be mounted as low as 40cm to the ground depending on the angle. Please
send back your CPU with a note requesting a low mount version. See the
end of this page for our returns address.
(2) Glue can damage the internal workings of a
sensor, even plastic glues can cause excessive heat or even melt the sensor. It
is not necessary to use glue to mount the sensors and we do not recommend the
use of glue for this purpose.
(3) You
could have a faulty sensor. Please perform the
following sensor test:
(i)
Locate the Parking Sensor Control Box (CPU)
(ii)
Unplug all the sensors from the CPU, perform a test by switching the
ignition on with vehicle in reverse and all the sensors unplugged. If
the buzzer remains silent after the start up tone then move onto to step
(iii) If the buzzer continuously sounds when there are no sensors
plugged in then the buzzer is faulty, if so then report this to us so
that we can despatch a replacement.
(iii)
Plug each sensor in one at a time and test by walking up to that sensor.
If you have a problem with an individual sensor then the buzzer will
continuously sound, if so then move onto step (iv).
(iv)
Remove the sensor that is malfunctioning from the bumper (leaving it
plugged in) and hold it away from the vehicle and retest the sensor when
it is out of the hole. If the buzzer remains silent after the start up
tone then it appears that the hole is too small for the sensor and needs
to be enlarged, the increased
pressure on the sides of the sensors causes the sensors to short out and
the result is a constant beeping. The sensors must be removed and the
holes made slightly larger. If the sensor is
still malfunctioning after it has been removed from the bumper then it
sounds like a faulty sensor. Please report this to us so that we can
despatch a replacement.
![Visa Delta [1258 bytes]](http://perfect-parking.co.uk/photos/VISD.gif){kind=small}
