BPW ECO Tronic EBS - Sensor Diagnosis; Fault Indicator Junction Box; Error Repair; Sensor Diagnosis

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5.3 Soft Docking
Night Silent Mode
If the reverse gear is engaged twice (within 2 seconds) the
acoustic warning installation (buzzer) will be ‘’night silent’’. The
outline marker is however active. The ‘’night silent’’ option is to
prevent audible nuisance at night in residential areas.
Nominal voltage 24 V
Operating voltage 19 bis 32 V
Operating temperature -30 bis +65° C
Current consumption < 300 mA (total system)
Ultrasonic sensors:
Max. range 2500 mm
Min. range 350 mm
Detection angle 15°
Operating voltage 12 - 30 V
Max. current consumption < 35 mA
Frequency 180 kHz
Reversing alarm:
Operating voltage 12 - 30 V
Max. current consumption < 35 mA
Superpoint LED
Operating voltage 24 V
Max. current consumption < 35 mA
The sensor has an area (< 350 mm), within which the
measurement result might not be 100% accurate.
Technical Data
Sensor diagnosis
Sensor faults are indicated by six LED’s inside the Soft Docking
junction box (Fig. 151).
1)
One green LED: shows, that the voltage supply is in
order.
2) Two red LED´s: indicates in which of the sensors a
fault has occurred.
3)
Three yellow LED´s: indicates an error code, which
describes the type of default.
Error code
2 1 0
Possible reasons Repair
Sensor cable break Change sensor
Defect on head of sensor Change sensor
Sensor cable break Change sensor
In the case of an “error” the LED outline marker will permanently
illuminate and the reverse alarm will permanently sound for
about 5 - 7 seconds.
Afterwards the alarm switches off automatically and the LED
outline marker continues to operate.
Fig. 151
Fault indicator junction box
Error repair / Sensor diagnosis
Error Possible reason Repair
Display an obstacle,
when none present
A sensor is obscured Adjust Sensor
Soft Docking doesn’t
work
- Reversing light, tail light L/R and earth connection is defective
- One of the fuses (tail light L/R or reversing light) defective
- Supply voltage is too small (< 19 V)
- Establish or check all the connections
- Change one of the fuses
- Check the light control unit of the truck
LED outline marker
light does not shine
- LED defective
- When activating the system an error occurs
- Change LED
- Activate the system once again
Reverse alarm
doesn’t work
- Defective alarm
- Silent mode is active
- Change the alarm
- Engage the reverse gear