Auto A/C Electronic Control Input / Output Diagram; Component Location; A/C System Major Components Location - Suzuki SX4 Service Manual
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Also See for SX4:
- Owner's manual (47 pages) ,
- Owner's manual (16 pages) ,
- Owner's manual (278 pages)
Table of Contents
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7B-42 Air Conditioning System: Automatic Type
[A]: Hatchback model
[B]: Sedan model
[C]: Illumination control model
[D]: Junction block with BCM
[E]: Junction block without BCM
1. Main fuse box
2. Ignition switch
3. CAN junction connector
4. Rear defogger relay
5. Rear defogger
6. Blower motor relay
7. Blower motor
8. Blower motor controller
Auto A/C Electronic Control Input / Output Diagram
Data link connector
A/C refrigerant pressure sensor
Condenser cooling fan relay
ECT sensor
ECM
*
ABS control module
or ESP® control module
*
BCM
*
Combination meter
A/C System Major Components Location
Refer to "A/C System Major Components Location: Manual Type".
9. DLC
10. Air intake actuator
11. Air flow control actuator
12. Temperature control actuator
13. Inside air temperature sensor
14. Outside air temperature sensor
15. Evaporator temperature sensor
16. Sunload sensor
17. Junction block assembly
18. ECM
19. ECT sensor
20. Condenser cooling fan motor
21. Compressor relay
Compressor relay
Wheel
speed
sensor
Outside air
temperature
sensor
*: CAN communication
Component Location
22. Compressor
23. HVAC control module
24. BCM
25. A/C refrigerant pressure sensor
26. Condenser cooling fan relay
27. Information display
28. Lighting switch
29. A/C switch
30. Air intake selector
31. To BCM
32. ABS / ESP® control module
33. Illumination light
34. "A/C" indicator light
HVAC control module
CPU
35. Rear defogger switch
36. Rear defogger indicator
37. To other control module
38. Indicator light, switch,
selector
39. "FRE" indicator light
40. "REC" indicator light
41. Temperature selector
42. Blower speed selector
43. MODE (air flow) selector
44. Tail light
45. Main relay
S7RW0A7222003
Temperature selector
MODE (air flow) selector
Blower speed selector
Air intake selector
A/C switch
AUTO switch
Temperature control actuator
Air flow control actuator
Air intake control actuator
Blower motor controller
Inside air temperature sensor
Sunload sensor
Evaporator temperature sensor
S7RW0A7223001
I7RW01722001-04
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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,
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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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.
This answer is automatically generated