Suzuki 2006 SX4, Service Manual

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Brake Control System and Diagnosis: 4A-6
Dragging brakes (Without
a very light drag is
present in all brakes
immediately after pedal is
released) Master cylinder pistons not returning
correctly Replace master cylinder.
Restricted brake pipes or hoses Check for soft hoses or damaged pipes and
replace with new hoses and/or new brake
piping.
Incorrect parking brake adjustment on
rear brakes Check and adjust to correct specifications.
Weakened or broken return springs in
the rear brake caliper Replace.
Sluggish parking brake cables or linkage Repair or replace.
Wheel cylinder or caliper piston sticking Repair as necessary.
Badly worn piston seal in caliper Replace piston seal.
Improper brake pedal free height Check brake pedal free height.
Pedal pulsation (Pedal
pulsates when depressed
for braking) Damaged wheel bearings Replace wheel bearings.
Distorted steering knuckle or rear wheel
spindle or rear axle shaft Replace knuckle or rear wheel spindle or rear
axle shaft.
Excessive disc lateral runout Check per instructions. If not within
specifications, replace or machine disc.
Braking noise Glazed brake pad Repair or replace brake pad.
Loose front wheel bearings Replace wheel hub.
Distorted backing plates or loose
mounting bolts Replace or retighten securing bolts.
Contact wear indicator to brake disc Replace brake pads.
Brake warning light lights
after engine start Parking brake applied Release parking brake and check that brake
warning light turns off.
Insufficient amount of brake fluid Investigate leaky point, correct it and add
brake fluid.
Brake fluid leaking Investigate leaky point, correct it and add
brake fluid.
Brake warning light circuit faulty Repair circuit.
Malfunctioning EBD system Check system referring to “EBD Warning Light
(Brake Warning Light) Comes ON Steady in
Section 4E”.
Brake warning light turns
on when brake is applied Brake fluid leaking Investigate leaky point, correct it and add
brake fluid.
Insufficient amount of brake fluid Investigate leaky point, correct it and add
brake fluid.
Brake warning light fails
to turn on even when
parking brake is applied Brake warning light circuit faulty Replace bulb or repair circuit.
ABS warning light turns
on after engine start Malfunctioning ABS Check system referring to “ABS Check in
Section 4E”.
ABS warning light turns
on when brake is applied Malfunctioning ABS Check system referring to “ABS Check in
Section 4E”.
ABS warning light does
not turn on for 2 sec. after
ignition switch has turned
ON Bulb burnt out Replace bulb.
Malfunctioning ABS Check system referring to “ABS Check in
Section 4E”.
ABS warning light flashes New ABS hydraulic unit / control module
assembly installed. Perform “ABS Hydraulic Unit Operation Check
in Section 4E”.
Condition Possible cause Correction / Reference Item