both the non-antilock braking systems and antilock
braking systems. That means the left front and right
rear brakes are on one hydraulic circuit and the right
front and left rear are on the other.

For information on the brake lamp switch, (Refer

to 8 - ELECTRICAL/LAMPS/LIGHTING - EXTERI-
OR/BRAKE LAMP SWITCH - DESCRIPTION)

Vehicles equipped with the optional antilock brake

system (ABS) use a system designated Mark 20e. It
is available with or without traction control. This
system shares most base brake hardware used on
vehicles without ABS. ABS components are described
in detail in ANTILOCK BRAKE SYSTEM.

DESCRIPTION - BASE BRAKES (EXPORT)

Four-Wheel Disc Antilock Brakes are standard on

all models.

OPERATION - BASE BRAKES

When a vehicle needs to be stopped, the driver

applies the brake pedal. The brake pedal pushes the
input rod of the power brake booster into the booster.
The booster uses vacuum to ease pedal effort as force
is transferred through the booster to the master cyl-
inder. The booster’s output rod pushes in the master
cylinder’s primary and secondary pistons applying
hydraulic pressure through the chassis brake tubes
to the brakes at each tire and wheel assembly.

The

parking

brakes

are

foot-operated.

When

applied, the parking brake lever pulls on cables that
actuate brake shoes at each rear wheel. These shoes
come in contact with a hub mounted drum (drum for
disc/drum brakes or drum-in-hat for disc/disc brakes)
and hold it in place.

BRAKES - BASE

5 - 3

WARNING

WARNING: DUST AND DIRT ACCUMULATING ON
BRAKE PARTS DURING NORMAL USE MAY CON-
TAIN ASBESTOS FIBERS FROM PRODUCTION OR
AFTERMARKET

BRAKE

LININGS.

BREATHING

EXCESSIVE

CONCENTRATIONS

ASBESTOS

FIBERS CAN CAUSE SERIOUS BODILY HARM.
EXERCISE

CARE

WHEN

SERVICING

BRAKE

PARTS. DO NOT SAND OR GRIND BRAKE LINING
UNLESS EQUIPMENT USED IS DESIGNED TO CON-
TAIN THE DUST RESIDUE. DO NOT CLEAN BRAKE
PARTS

WITH

COMPRESSED AIR

BY DRY

BRUSHING. CLEANING SHOULD BE DONE BY
DAMPENING THE BRAKE COMPONENTS WITH A
FINE MIST OF WATER, THEN WIPING THE BRAKE
COMPONENTS CLEAN WITH A DAMPENED CLOTH.
DISPOSE OF CLOTH AND ALL RESIDUE CONTAIN-
ING ASBESTOS FIBERS IN AN IMPERMEABLE
CONTAINER WITH THE APPROPRIATE LABEL. FOL-
LOW PRACTICES PRESCRIBED BY THE OCCUPA-
TIONAL SAFETY AND HEALTH ADMINISTRATION
(OSHA) AND THE ENVIRONMENTAL PROTECTION
AGENCY (EPA) FOR THE HANDLING, PROCESSING,
AND DISPOSING OF DUST OR DEBRIS THAT MAY
CONTAIN ASBESTOS FIBERS.

CAUTION

CAUTION: During service procedures, grease or
any other foreign material must be kept off brake
shoe assemblies, and braking surfaces of brake
rotor or drum, and external surfaces of hub and
bearing assembly.

CAUTION: Handling of brake rotors and calipers
must be done in such a way as to avoid damage to
the rotor and scratching or nicking of brake lining
on the brake shoes.

CAUTION: At no time when servicing a vehicle, can
a sheet metal screw, bolt or other metal fastener be
installed in the shock tower to take the place of an
original plastic clip. Also, NO holes can be drilled
into the front shock tower in the area shown in (Fig.
1), for the installation of any metal fasteners into
the shock tower. Because of the minimum clear-

ance in this area (Fig. 1), installation of metal fas-
teners could damage the coil spring coating and
lead to a corrosion failure of the spring. If a plastic
clip is missing, or is lost or broken during servicing
a vehicle, replace only with the equivalent part
listed in the Mopar parts catalog.

CAUTION: Only the recommended jacking or hoist-
ing positions for this vehicle are to be used when-
ever it is necessary to lift a vehicle. Failure to raise
a vehicle from the recommended locations could
result in lifting a vehicle by the hydraulic control
unit mounting bracket. Lifting a vehicle by the
hydraulic control unit mounting bracket will result
in damage to the mounting bracket and the hydrau-
lic control unit.

DIAGNOSIS AND TESTING - BASE BRAKE
SYSTEM

NOTE: There are three diagnosis charts following
that cover the RED BRAKE WARNING INDICATOR
LAMP, BRAKE NOISE and OTHER BRAKE CONDI-
TIONS.

Fig. 1 Shock Tower To Spring Minimum Clearance

Area

1 - SHOCK TOWER
2 - COIL SPRING
3 - NO SHEET METAL SCREWS, BOLTS, OR ANY OTHER METAL
FASTENERS ARE TO BE INSTALLED INTO SHOCK TOWER IN
THIS AREA. ALSO, NO HOLES ARE TO BE DRILLED INTO
SHOCK TOWER IN THIS SAME AREA.

5 - 4

BRAKES - BASE

BRAKES - BASE (Continued)

RED BRAKE WARNING INDICATOR LAMP

CONDITION

POSSIBLE CAUSES

CORRECTION

RED BRAKE WARNING
LAMP ON

1. Parking brake lever not fully
released.

1. Release parking brake lever.

2. Parking brake warning lamp
switch on parking brake lever.

2. Inspect and replace switch as necessary.

3. Brake fluid level low in reservoir.

3. Fill reservoir. Check entire system for
leaks. Repair or replace as required.

4. Brake fluid level switch.

4. Disconnect switch wiring connector. If
lamp goes out, replace switch.

5. Mechanical instrument cluster
(MIC) problem.

5. Refer to appropriate Diagnostic
information.

6. Amber ABS Warning Indicator
Lamp also illuminated.

6. Refer to appropriate Diagnostic
information.

BRAKE NOISE

CONDITION

POSSIBLE CAUSES

CORRECTION

CLICK OR SQUAWK ON
PEDAL APPLICATION

1. Brake lamp switch.

1. Replace switch.

2. Brake Transmission Shift Interlock
Linkage.

2. Lubricate BTSI linkage.

3. Pedal pivot bushings

3. Lubricate pivot bushings. Replace if
necessary.

DISC BRAKE CHIRP

1. Excessive brake rotor runout.

1. Follow brake rotor diagnosis and testing.
Correct as necessary.

2. Lack of lubricant on brake caliper
slides.

2. Lubricate brake caliper slides.

3. Caliper/shoes not fully seated.

3. Reseat caliper/shoes.

DISC BRAKE RATTLE OR
CLUNK

1. Broken or missing anti-rattle
spring clips on shoes.

1. Replace brake shoes.

2. Caliper guide pins/bolts loose.

2. Tighten guide pins/bolts.

DISC BRAKE SQUEAK AT
LOW SPEED (WHILE
APPLYING LIGHT BRAKE
PEDAL EFFORT)

1. Brake shoe linings.

1. Replace brake shoes.

DRUM BRAKE CHIRP

1. Lack of lubricant on brake shoe
support plate where shoes ride.

1. Lubricate shoe contact areas on brake
shoe support plates.

DRUM BRAKE CLUNK

1. Drum(s) have threaded machined
braking surface.

1. Replace brake drums as necessary.

DRUM BRAKE HOWL OR
MOAN

1. Lack of lubricant on brake shoe
support plate where shoes ride and
at the anchor.

1. Lubricate shoe contact areas on brake
shoe support plates and at the anchor.

2. Rear brake shoes.

2. Replace rear brake shoes.

DRUM BRAKE SCRAPING
OR WHIRRING

1. ABS wheel speed sensor or tone
wheel.

1. Inspect, correct or replace faulty
component(s).

BRAKES - BASE

5 - 5

BRAKES - BASE (Continued)

Content .. 36 37 38 39 ..