Chrysler neon 1997 Service Manual page 85

MASTER MOUNTING STUDS (2) OUTPUT ROD VACUUM CHECK VALVE CYLINDER POWER BRAKE BOOSTER
5 - 8 BRAKES
DESCRIPTION AND OPERATION (Continued)
Fig. 17 Power Brake Booster Assembly
The warning lamp bulb is supplied a 12 volt igni-
tion feed anytime the ignition switch is on. The bulb
is then illuminated by completing the ground circuit
either through the park brake switch, the fluid level
sensor in the master cylinder reservoir, or the igni-
tion switch in the crank position.
The Brake Fluid Level sensor is located in the
brake fluid reservoir of the master cylinder assembly
(Fig. 18). The purpose of the sensor is to provide the
driver with an early warning that the brake fluid
level in the master cylinder reservoir has dropped to
below normal. This may indicate an abnormal loss of
brake fluid in the master cylinder fluid reservoir
resulting from a leak in the hydraulic system.
Fig. 18 Master Cylinder Fluid Level Sensor
BLY POWER BOOSTER ASSEM- MASTER MOUNTING STUDS (4) TO POWER BRAKE BOOSTER DASH MASTER CYLINDER CYLINDER FLUID RESERVOIR BRAKE LEVEL SENSOR PANEL INPUT ROD ASSEMBLY BRAKE FLUID
As the fluid drops below the minimum level, the
fluid level sensor closes the brake warning light cir-
cuit. This will turn on the red brake warning light.
At this time, master cylinder fluid reservoir should
be checked and filled to the full mark with DOT 3
brake fluid. If brake fluid level has dropped in
master cylinder fluid reservoir, the entire
brake hydraulic system should be checked for
evidence of a leak.
STOP LAMP SWITCH
The stop lamp switch controls operation of the
vehicles stop lamps. Also, if the vehicle is equipped
with speed control, the stop lamp switch will deacti-
vate speed control
depressed.
The stop lamp switch controls operation of the
right and left tail, stop and turn signal lamp and
CHMSL lamp, by supplying battery current to these
lamps.
The stop lamp switch controls the lamp operation
by opening and closing the electrical circuit to the
stop lamps.
REAR WHEEL HUB AND BEARING ASSEMBLY
All vehicles are equipped with permanently lubri-
cated and sealed for life rear wheel bearings. There
is no periodic lubrication or maintenance recom-
mended for these units. However, if servicing of a
rear wheel bearing is required, refer to procedures in
the diagnosis and testing section and the removal
and installation section in this group of the service
manual for the inspection and replacement of the
rear wheel bearing.
when the brake pedal
PL
is