Diagnostic Information And Procedures; A/C System Symptom Diagnosis - Suzuki Swift Sport 2004 Service & Repair Manual

4. Rear defogger relay
5. Rear defogger
6. Blower motor relay
7. Blower motor
8. Blower motor controller
9. DLC
10. Air intake actuator
11. Air flow control actuator

A/C System Symptom Diagnosis

Condition
No cool air comes out (A/
C system does not
operate)
15. Evaporator temperature sensor
16. Sunload sensor
17. Junction block assembly
18. ECM
19. ECT sensor
20. Radiator cooling fan motor
21. Compressor relay
22. Compressor

Diagnostic Information and Procedures

Possible cause
No refrigerant
Fuse blown
A/C switch faulty
Evaporator temperature sensor faulty
A/C refrigerant pressure sensor faulty
Wiring or grounding faulty
ECT sensor faulty
ECM faulty
HVAC control module faulty
Magnet clutch faulty
Compressor drive belt loosened or
broken
Compressor faulty
Compressor relay faulty
Temperature selector, blower speed
selector, and/or air flow selector faulty
BCM faulty
Air Conditioning System: Automatic Type 7B-39
26. Radiator cooling fan relay No.1
27. Radiator cooling fan relay No.2
28. Radiator cooling fan relay No.3
29. Information display
30. Lighting switch
31. A/C switch
32. MODE (air flow) selector
33. Air intake selector
Correction / Reference Item
Perform recovery, evacuation and charge
referring to "Operation Procedure for
Refrigerant Charge".
Check related fuses, and then check for short
circuit to ground.
Check A/C switch referring to "Inspection of
HVAC Control Module and Its Circuit".
Check evaporator temperature sensor
referring to "Evaporator Thermistor
(Evaporator Temperature Sensor) Inspection".
Check A/C refrigerant pressure sensor
referring to "A/C Refrigerant Pressure Sensor
and Its Circuit Inspection".
Repair as necessary.
Check ECT sensor referring to "ECT Sensor
Inspection in Section 1C".
Check ECM referring to "A/C System
Inspection at ECM".
Check HVAC control module referring to
"Inspection of HVAC Control Module and Its
Circuit".
Check magnet clutch. Referring to "Magnet
Clutch Inspection".
Adjust or replace drive belt.
Check compressor.
Check compressor relay referring to
"Compressor Relay Inspection".
Check HVAC control module referring to
"Inspection of HVAC Control Module and Its
Circuit".
Check BCM referring to "Inspection of BCM
and its Circuits in Section 10B".
37. Rear defogger switch
38. To BCM
39. To ECM
40. To main relay
41. To main fuse
42. Back-light
43. Defroster indicator
44. Rear defogger indicator
S7RS0B7224001