Hymer Parkpilot Manual página 8

b) Check whether a cable on the sensors has come loose or shows an external defect (e.g. worn through).
c) Plug the supposedly defective sensor onto one of the other sensors.
- If the system now shows the new slot as a fault, the sensor is defective.
- If the original slot continues to be displayed as a fault, there is probably a cable problem to the sensor.
Important: Always switch off the system before disconnecting or reconnecting a plug! Cables carrying current should
always be checked by a professional!
2. The system beeps constantly or emits a continuous tone without detecting an obstacle.
Sensors are twisted:
Check that none of the 4 sensors are twisted.
The sensors have a dot which indicates the alignment.
Sensor crushed:
If one of the sensors has been crushed in the middle by a solid object, this may damage the inner membrane and cause the
sensor to malfunction. Depending on the damage, false alarms may be triggered or the sensor may fail. When turning or
inserting the sensors, please ensure that they are only ever pressed at the edge.
Is the vehicle standing straight?
If the vehicle is standing on an uneven surface, the inclination of the vehicle may cause one of the sensors to detect the ground.
Has the height of the vehicle been changed significantly?
Has the height of the rear of the vehicle been changed significantly - for example by a heavy load or by depressurising an air
suspension or adjustable chassis? This could be the cause of the floor being detected by one of the sensors.
An add-on part or bicycle carrier protrudes into the sensor range.
Have new add-on parts been fitted or modified at the rear, which now protrude into the detection area?
Possible solution:
Have a Hymer workshop carry out the auto calibration of the system.
This can reduce the sensitivity of the sensors by up to 25% so that protruding attachments or ground detection can be ruled out
again.
3. LED indicator does not react when reverse gear is engaged.
Possible cause / interference signals in the vehicle's electrical system
The CAN bus signal of the transmitter unit is transmitted via the vehicle's electrical system. Interference signals in the electrical
circuit can negatively influence the CAN signal of the reversing system.
LED bulb defective or replaced
Has a light source on the vehicle been replaced recently? This may be the cause of an interference signal.
If an LED lamp is not optimally interference-suppressed, it can emit a pulsed signal to the power supply system and thus also
negatively influence the Can signal of the parking pilot.
Newly fitted or replaced electrical attachments
Has an electrical add-on part been installed or replaced on the vehicle recently?
Under certain circumstances, this can interfere with the CAN signal. This can be easily checked by disconnecting the add-on
part from the power supply.
Ground problem
One of the most common sources of electrical malfunctions is a ground problem. If there is a ground problem at the tail light, at
the receiver unit or even elsewhere in the vehicle circuit, this can significantly affect the circuit and lead to a disturbance of the
signal transmission.
Please check that the tail lights and your brake lights and indicators are working properly, as this is usually a clear indication of a
ground problem.
If you suspect a ground problem, have the vehicle's electrical system checked immediately by a specialist.
4. Trailer operation
When towing a trailer, the Park Pilot does NOT switch off the sensors / acoustics à Continuous warning tone possible when
reversing!
A trailer parking pilot is optionally available which is compatible with the HYMER parking pilot. Please contact the manufacturer
CaraWarn.