Suzuki SX4 Service Manual page 1008
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (278 pages) ,
- Owner's manual (18 pages)
Table of Contents
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7B-14 Air Conditioning System: Manual Type
Condition
Cool air does not come
out or insufficient cooling
(A/C compressor normal
operation)
Cool air does not come
out only intermittently
Cool air comes out only at
high speed
Possible cause
Insufficient or excessive charge of
refrigerant
Condenser clogged
A/C evaporator clogged or frosted
Evaporator temperature sensor faulty
Expansion valve faulty
Desiccant clogged
Compressor drive belt loosened or
broken
Magnet clutch faulty
Compressor faulty
Air in A/C system
Air leaking from HVAC unit or air duct
Heater and ventilation system faulty
Blower motor faulty
Excessive compressor oil in A/C system Drain excessive compressor oil from A/C
Wiring connection faulty
Evaporator temperature sensor faulty
Expansion valve faulty
Excessive moisture in A/C system
Magnet clutch faulty
Excessive amount of refrigerant
Condenser clogged
Insufficient charge of refrigerant
Air in A/C system
Compressor drive belt loosened or
broken
Compressor faulty
Correction / Reference Item
Check the amount of refrigerant and system
for leaks.
Check condenser referring to "Condenser
Assembly On-Vehicle Inspection: Manual
Type".
Check A/C evaporator and evaporator
temperature sensor referring to "Evaporator
Inspection: Manual Type" and "Evaporator
Temperature Sensor Inspection: Manual Type".
Check evaporator temperature sensor
referring to "Evaporator Temperature Sensor
Inspection: Manual Type".
Check expansion valve referring to "Expansion
Valve Inspection: Manual Type".
Check desiccant and cap with filter.
Adjust or replace drive belt.
Check magnet clutch referring to "Magnet
Clutch Inspection: Manual Type".
Check compressor.
Replace condenser, and then perform
evacuation and charge referring to "Operation
Procedure for Refrigerant Charge: Manual
Type".
Repair as necessary.
Check HVAC unit.
Check blower motor referring to "Blower Motor
Inspection in Section 7A".
system circuit and compressor.
Repair as necessary.
Check evaporator temperature sensor
referring to "Evaporator Temperature Sensor
Inspection: Manual Type".
Check expansion valve referring to "Expansion
Valve Inspection: Manual Type".
Replace condenser, and then perform
evacuation and charge referring to "Operation
Procedure for Refrigerant Charge: Manual
Type".
Check magnet clutch referring to "Magnet
Clutch Inspection: Manual Type".
Check the amount of refrigerant.
Check condenser referring to "Condenser
Assembly On-Vehicle Inspection: Manual
Type".
Check the amount of refrigerant and system
for leaks.
Replace condenser, and then perform
evacuation and charge referring to "Operation
Procedure for Refrigerant Charge: Manual
Type".
Adjust or replace drive belt.
Check compressor.
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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,
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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دلایل بالا رفتن مصرف بنزین در مدل اتومات
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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