Compressed-air system
Display messages
Possible causes/consequences and MM Solutions
\
Example: Brake sup‐Brake sup‐
ply pressure inply pressure in
circuit1too lowcircuit1too low
In addition,the J warning lamp lightsupred in theinstrument
cluster.
The reservoir pressure in brakecircuit 1 \ or 2 ^ is toolow.
The reservoir pressure in thespring actuatorand thetrailer's brake
circuit is toolow. In this case, the J symbol is displayed in the
event window.
Possible causes:
R
Too muchcompressed air has been consumed
R
Thereisaleak in thecompressed-air system.
G
WARNING
The operatingand road safety of thevehicle are jeopardized.
Thereisariskofanaccident.
X
Stop thevehicle at once, payingattentiontoroad traffic condi-
tions.
X
Apply theparking brake.
X
Start theengine.
The compressed-air system is charged.
If the J warning lamp in theinstrumentclustergoes out:
X
Continue thejourney.
If the J warning lamp in theinstrumentclusterdoes notgoout:
X
Checkthe compressed-air brakesystem for leaks(Ypage 109).
X
If thecompressed-air brakesystem is notleaking,but the J
warning lamp does notgoout:have thecompressed-air brake
system checked at aqualified specialist workshop.
98
On-boardcomputer event window
On-boardcomputer and displays
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