Malfunctions in driving mode
7.6 Troubleshooting
Operating Manual GMK6300L 3 112 xxx en 7 - 31
xx.xx.xxxx
7.6.4 Transfer case malfunctions
7.6.5 Malfunctions of the service brake
Malfunction Cause Remedy
Switching operations are not
conducted
Pressure of 5.5 bar (80 psi)
has not yet built up in the
reservoirs
à Building up supply pressure,
p. 5 - 10
Malfunction Cause Remedy
Lights up while
driving or does not
go out after the
engine is started
The air pressure in one of the
two circuits has fallen below
5.5 bar (80 psi)
The vehicle can be driven
slowly to the next repair shop
The air pressure in both circuits
has fallen below 5.5 bar (80 psi)
1. Top up the compressed-
air supply on the filler con-
nection;
à p. 7 - 6
2. Tow the truck crane with
the towing bar;
à p. 7 - 6
Parking brake una-
ble to be released
Supply pressure too low
à Building up supply pressure,
p. 5 - 10
– Does not go out
–Off
Also lights up at
over 6 km/h
(4 mph)
The trailer ABS has failed Drive vehicle to next garage;
braking without ABS support is
still possible
The retarder cannot be
engaged
Fuse F2/6 blown Replace blown fuses;
à p. 7 - 20
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