Suzuki SX4 Service Manual page 568

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4A-4 Brake Control System and Diagnosis:
Condition
Dragging brakes (A very
light drag is present in all
brakes immediately after
pedal is released)
Pedal pulsation (Pedal
pulsates when depressed
for braking)
Braking noise
Brake warning light lights
after engine start
Brake warning light turns
on when brake is applied
Brake warning light fails
to turn on even when
parking brake is applied
ABS warning light or
®
ESP
warning light turns
on after engine start
ABS warning light or
®
ESP
warning light turns
on when brake is applied
ABS warning light or
®
ESP
warning light after
ignition switch has turned
ON
ABS warning light flashes New ABS (ESP®) hydraulic unit / control
Possible cause
Master cylinder pistons not returning
correctly
Restricted brake pipes or hoses
Incorrect parking brake adjustment on
rear brakes
Weakened or broken return springs in
the drum brake
Sluggish parking brake cables or linkage Repair or replace.
Wheel cylinder or caliper piston sticking Repair as necessary.
Badly worn piston seal in caliper
Improper brake pedal free height
Damaged wheel bearings
Distorted steering knuckle or rear wheel
spindle or rear axle shaft
Excessive disc lateral runout
Rear drums out of round
Glazed brake pad and/or brake shoe
Worn or distorted brake shoe
Loose front wheel bearings
Distorted backing plates or loose
mounting bolts
Contact wear indicator to brake disc
Parking brake applied
Insufficient amount of brake fluid
Brake fluid leaking
Brake warning light circuit faulty
Malfunctioning EBD system
Brake fluid leaking
Insufficient amount of brake fluid
Brake warning light circuit faulty
Malfunctioning ABS (ESP®)
Malfunctioning ABS (ESP®)
Bulb burnt out
Malfunctioning ABS (ESP®)
module assembly installed.
Correction / Reference Item
Replace master cylinder.
Check for soft hoses or damaged pipes and
replace with new hoses and/or new brake
piping.
Check and adjust to correct specifications.
Replace.
Replace piston seal.
Check brake pedal free height.
Replace wheel bearings.
Replace knuckle or rear wheel spindle or rear
axle shaft.
Check per instructions. If not within
specifications, replace or machine disc.
Repair or replace drum as necessary.
Check runout.
Repair or replace brake pad and/or brake
shoe.
Replace brake shoe.
Replace wheel hub.
Replace or retighten securing bolts.
Replace brake pads.
Release parking brake and check that brake
warning light turns off.
Investigate leaky point, correct it and add
brake fluid.
Investigate leaky point, correct it and add
brake fluid.
Repair circuit.
Check system referring to "EBD Warning Light
(Brake Warning Light) Comes ON Steady in
Section 4E".
Investigate leaky point, correct it and add
brake fluid.
Investigate leaky point, correct it and add
brake fluid.
Replace bulb or repair circuit.
Check system referring to "ABS Check in
Section 4E" or "Electronic Stability Program
Check in Section 4F".
Check system referring to "ABS Check in
Section 4E" or "Electronic Stability Program
Check in Section 4F".
Replace bulb.
Check system referring to "ABS Check in
Section 4E" or "Electronic Stability Program
Check in Section 4F".
Perform "ABS Hydraulic Unit Operation Check
®
in Section 4E" or "ESP
Operation Check in Section 4F".
Hydraulic Unit

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