TROUBLESHOOTING IN THE EVENT OF FAULTS
106
Operating instructions • Load Carrier • 505410638-02 • 07/2019
Fault
Cause
Solution
Braking abnor-
malities (trailer
and tractor
brake abnor-
mally in the
vehicle combin-
ation)
Failure to perform
the brake power/
train tuning
► Perform a brake power/train tuning with the alloc-
(see "9.2 Fixing braking abnormalit-
► In addition to the operating instructions for the
KRONE Trailer Axle, also observe the operating
instructions for the tractor unit and the trailer.
ABS/EBS error
display
Fault in the control-
ler
► Contact an authorised specialist workshop or cus-
tomer service.
Rear lights, dir-
ection indicat-
ors, position
lamps or similar
do not work
Defective bulbs
► Replace the defective bulbs.
► Check that the supply and control connections
between the tractor and trailer are properly con-
nected.
The lift axle no
longer functions
○
Faults on the
lift axle con-
trol due to de-
fective lift
axle valves
○
Fault due to
incorrect con-
trols from the
tractor unit
► Check that the supply and control connections
between the tractor unit and trailers are properly
connected.
► Contact an authorised specialist workshop or cus-
tomer service.
9.1
Checking the lift axle con-
trol
!
WARNING
Risk of accident caused by faulty lift
axle control!
A faulty lift axle control can have negative
effects on the handling characteristics of
the trailer. It can also change the vehicle
height or the distance from the road and
cause the trailer to get stuck in under-
passes.
► Only drive with properly functioning lift
axle control.
► In case of malfunction, contact an au-
thorised specialist workshop and have
the lift axle control repaired.
► In case of faults, have the lift axle con-
trol inspected by an authorised spe-
cialist workshop.
9.2
Fixing braking abnormalities
!
WARNING
Risk of accidents due to incorrect
brake tuning!
Incorrect brake tuning between tractor unit
and trailer can result in serious accidents.
► If necessary, carry out a brake power/
train tuning to obtain optimum brake
balance.
► Observe the reference brake values.
► Pay attention to the sticker on the
trailer.
Technically optimised function of the brake
system is only possible when trailer is com-
bined with the corresponding allocated
tractor unit. All components and the con-