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269Malfunction and indicator lamps
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ABS malfunction indicator lamp
The ABS malfunction indicator lamp in the
instrument cluster comes on with the
electronic key in starter switch position 2
and should go out with the engine running.
When the ABS malfunction indicator lamp symbol and
warning in the instrument cluster remains illuminated
while the engine is running, it indicates that the ABS
has detected a malfunction and has switched off. In this
case, the brake system functions in the usual manner,
but without antilock assistance.
A malfunctioning ABS control unit can possibly affect
the operation of other systems (e.g. Navigation,
Automatic transmission). Be guided accordingly with
respect to the use of those systems and have the system
checked at your authorized Mercedes-Benz Light Truck
Center as soon as possible.
With the ABS malfunctioning the BAS, ESP, EBB and
4-ETS are also switched off. The malfunction indicator
lamps and malfunction messages in the multifunction
display come on with the engine running.
If a warning tone sounds for 5 seconds and the warning
lamps - and É are displayed in the instrument
cluster, the EBB has a malfunction and is switched off.
See page 242 for notes on the electronic brake booster
(EBB).
If the charging voltage falls below 10 volts, the
malfunction indicator lamp comes on and the ABS is
switched off. When the voltage is above this value again,
the malfunction indicator lamp should go out and the
ABS is operational.
Have the system checked at your authorized
Mercedes-Benz Light Truck Center as soon as possible.
See page 239 for notes on antilock brake system (ABS).
Note:
If the transfer case differential lock is engaged the ABS
warning lamp comes on and the ABS, ESP, BAS, EBB
and 4-ETS are switched off. There is no malfunction in
the system.
ABS
J_G463.book Seite 269 Mittwoch, 19. September 2001 8:06 08