Dolphin DAS400, Руководство пользователя, Страница: 11 / 16

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FAULT – Detection range is not as expected
Some surfaces are more absorbent and less reflective than others and you will get a
better signal off cars and walls than bushes and railings where the detection range
may just kick in at a closer distance. If testing the sensors by walking towards them
your clothes will absorb some sound waves and better results can be achieved by
holding a couple of large books or folders under each arm face-on to the sensors.
TROUBLESHOOTING
FAULT – Constant tone alerts when
parking sensors are activated.
This could be due to one of the sensors
having developed and fault or kink in
the cable causing a short circuit of the
signal. To test this activate the sensors
so the fault is present and then unplug
each sensor one at a time from the
brain box. If the fault disappears with
one of the sensors unplugged then the
sensor is faulty, please contact us for a
replacement.
FAULT – Unit appears dead.
Check the power source is sending a
live feed. Check and try an alternative
source for the ground/earth connection.
If these appear OK then it could simply
be a faulty buzzer or possibly the brain
box, if which case contact us for a
replacement.
FAULT – Rear sensors work OK but
no signal from front sensors (or vice
versa).
Check brain box is wired correctly as
follows. Red: Ignition, Black: Ground,
Yellow: Reversing Light, Blue: Brake
Light. Check that the parking sensor
cables do not run close to the car
battery which generates an electrical
field which could be ‘drowning’ out the
signal. Swap one or more rear sensors
(ABCD) with front sensors (EFGH) in the
brain box. If the front sensors now work
but the rear ones do not, then there is
a fault with those terminals on the brain
box, contact us for a replacement.
FAULT – Constant slow bi—bi—bi
received from sensors.
They are probably fitted too low or
angled too low to the ground. Fit the
supplied angled wedges to lift the
sensor heads up slightly.
FAULT – Parking sensors work fine
when the engine is off, but not
when the engine is on.
This is usually the sign of interference
on CANbus wired cars, usually with such
things as bulb failure warning systems.
You will need to fit a relay, see Spare
Parts & Accessories.