Suzuki Swift Sport 2004 Service & Repair Manual page 988

7B-40 Air Conditioning System: Automatic Type
Condition
No cool air comes out
(radiator cooling fan
motor does not operate)
No cool air comes out
(blower motor does not
operate)
Possible cause
Fuse blown
Wiring or grounding faulty
Radiator cooling fan motor relay faulty
Radiator cooling fan motor faulty
ECM faulty
HVAC control module faulty
Fuse blown
Blower motor controller faulty
Blower speed selector faulty
HVAC control module faulty
Wiring or grounding faulty
Blower motor faulty
Blower motor relay faulty
Correction / Reference Item
Check related fuses, and then check for short
circuit to ground.
Repair as necessary.
Check radiator cooling fan motor relay
referring to "Radiator Cooling Fan Relay
Inspection in Section 1F".
Check radiator cooling fan motor referring to
"Radiator Cooling Fan Motor On-Vehicle
Inspection in Section 1F".
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 related fuses, and then check for short
circuit to ground.
Check blower motor controller referring to
"Blower Motor Controller Inspection".
Check blower speed selector referring to
"Inspection of HVAC Control Module and Its
Circuit".
Check HVAC control module referring to
"Inspection of HVAC Control Module and Its
Circuit".
Repair as necessary.
Check blower motor referring to "Blower Motor
Inspection in Section 7A".
Check blower motor relay referring to "Blower
Motor Relay Inspection in Section 7A".