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2
AIR BRAKE SYSTEM
Page 1 of 6
HOW ABS WORKS
YOl!r motor home is equipped with AilS anti-lock air
brake~.
AHS is an
elect runic system that Illonitors and controls wheel speed during hraking. The
sysicm works with slarrdani air brake systems.
ASS monitors whed speeds at all times am.i controls braking Juriug wheel
lock situations. Thc.ws1em improves vchide slability andcon}rol by reducing
wheel lock during braking.
~
'fhe ECU (electronic control unit) receives and processes signals fro\ll the
- -. wheel speed sensors. When the ECU detects a whecllockujl, the unit activates
the appropriate modular
v'.llve,
and air pressure is controlled.
In thccvcnt of a malfunction in the system, thcil.BS in the affected wheel(s)
is disabled; that w)1eel still has llormal brakes. The
ot~cr
wheels keep the ABS
[unction.
The A BS w<lrning lamp lets I..hi vers know the status of the system. This IfllllP
is also
u~cd
to display blink code diagnostics.
ABS WARNING LAMP
The ABS
warnil~g
lamp works as follows:
NORMAL OPERATION,
with the ignition key ON,ABS lamp comes 011
at ignition mOlnentmily for a hulb check, then go-es out. System b O.K.
AFTER SERVICING ABS SYSTEM, with the ig"nitiol1 key ON,ABS lamp
does not go out at ignition. When vehicle is driven at speeds above 4 mph
(6km/h), lamp goes oul. System is O.K.
EXISTING FAULT, AflS lamp does not go out at ignition.
J
.amp does not
go out at speeds above 4 mph (6kn,/h) - a fault exists in the ABS system.
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American Dream
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