Brakes Symptom Diagnosis - Suzuki SX4 Service Manual
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (278 pages) ,
- Owner's manual (16 pages)
Table of Contents
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Brakes Symptom Diagnosis
Condition
Not enough braking force Brake fluid leakage from brake lines
Brake pull (Brakes not
working in unison)
Noise (High pitched
squeak without brake
applied)
Excessive pedal travel
(Pedal stroke too large)
Brake locked
Possible cause
Brake disc or pad stained with fluid,
grease or other oil
Overheated brakes
Poor contact of shoes on brake drum
Brake shoe stained with oil or wet with
water
Badly worn brake pad
Defective wheel cylinders
Malfunctioning caliper assembly
Malfunctioning brake booster
Malfunctioning brake master cylinder
Air in system
Negative pressure for brake booster is
inadequate
Malfunctioning ABS (ESP®)
Pad, disc, shoe and/or drum are wet
with water or stained with oil in some
brakes
Drum-to-shoe clearance out of
adjustment in some brakes
(Malfunctioning auto adjusting
mechanism)
Disc and/or drum are out of round in
some brakes
Tires are inflated unequally
Malfunction in wheel cylinders
Disturbed front wheel alignment
Unmatched tires on same axle
Restricted brake pipes or hoses
Malfunctioning caliper assembly
Loose suspension parts
Loose calipers
Contact wear indicator to brake disc
Worn rear brake shoe
Partial brake system failure
Brake fluid leaking
Air in system (soft / spongy pedal)
Rear brake system not adjusted
(malfunctioning auto adjusting
mechanism)
Bent brake shoes
Malfunctioning ABS (ESP®)
Brake Control System and Diagnosis:
Correction / Reference Item
Locate leaking point and repair.
Clean or replace.
Determine cause and repair.
Repair for proper contact.
Replace.
Replace.
Repair or replace.
Repair or replace.
Check system and replace as necessary.
Check system and replace as necessary.
Bleed system.
Check engine condition and vacuum hose.
Check system and replace as necessary.
Clean or replace.
Check for inoperative auto adjusting
mechanism.
Replace.
Inflate equally.
Repair or replace.
Adjust as prescribed.
Tires with approximately the same amount of
tread should be used on the same axle.
Check for soft hoses and damaged lines.
Replace with new hoses and new double-
walled steel brake tubing.
Caliper should slide.
Check for stuck or sluggish pistons and proper
lubrication of caliper slide pin.
Check all suspension mountings.
Check and torque bolts to specifications.
Replace brake pad.
Replace brake shoe.
Check brake systems and repair as necessary.
Repair the leaking point, and bleed air.
Bleed system.
Adjust rear brakes.
Repair auto adjusting mechanism.
Replace brake shoes.
Check system referring to "ABS Check in
Section 4E" or "Electronic Stability Program
Check in Section 4F".
4A-3
S7RW0A4104002
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Chapters
Table of Contents
Troubleshooting
Need help?
Do you have a question about the SX4 and is the answer not in the manual?
Questions and answers
Adjust throttle motor
The idle speed on a Suzuki SX4 should be controlled by the Idle Air Control Valve (IACV) rather than adjusting the idle screw on the throttle body, as the screw is factory set. Before using compressed air in the idle-air-bypass passages, the IACV should be removed to prevent damage to its delicate mechanism. If there is an issue with idle speed, checking the IACV function and referring to the SX4 service manual is recommended.
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I have an issue of crank but not starting When I scan it brought this codeU0100 Which means no communication thou crank sensor wire was cut off but it was fix back What could be wrong and what could be the solution,
increasing revs when changing gears
The Suzuki SX4 may have increasing revs when changing gears due to its drive-by-wire system and the difference in final drive ratios between the manual (4.41) and automatic (2.81) transmissions. This difference causes high cruising RPMs in the manual version and sluggishness in the automatic. Additionally, if the revs climb while going uphill, it may be due to the transmission downshifting or kicking out of overdrive. Other possible causes include low transmission fluid, abuse, or a faulty transmission design.
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My heater stopped working the blower **** is good, control unit ?
Possible issues with the heater in a Suzuki SX4 if the blower is working but the heater is not include:
1. Incorrect Temperature Output
- Temperature control cable broken or bent (non-A/C and manual A/C) → Check the temperature control cable.
- Temperature selector faulty (non-A/C and manual A/C) → Check the temperature selector.
- Incorrect installation of the temperature control cable (non-A/C and manual A/C) → Check and adjust the position as necessary.
- Temperature control door assembly broken → Repair the temperature control door assembly.
- Air ducts clogged → Repair air ducts.
- Heater core leaked or clogged → Replace the heater core.
- Heater hoses leaked or clogged → Replace heater hoses.
- Thermostat faulty → Check the thermostat.
- Temperature control actuator faulty (auto A/C) → Check the temperature control actuator.
- HVAC control module faulty (auto A/C) → Check the HVAC control module.
- Wiring or grounding faulty (auto A/C) → Repair as necessary.
2. Other Possible Causes
- Air flow control cable broken or bent → Check the air flow control cable.
Checking and addressing these components should help identify and resolve the heater issue.
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