Suzuki Ignis Service Manual page 1199

1B-6 AIR CONDITIONING (OPTIONAL)
A/C System Symptom Diagnosis
NOTE:
For M15 engine model, refer to the same section of the Service Manual mentioned in the "Foreword"
of this service manual.
For Z13DT Engine Model
Condition
No cool air comes out
(A/C system does not
operate)
No cool air comes out
(A/C condenser cool-
ing fan motor does not
operate)
No cool air comes out
(Blower motor does
not operate)
Diagnosis
Possible Cause
No refrigerant
Fuse blown
A/C switch faulty
Blower speed selector faulty
Pressure sensor faulty
Wiring or grounding faulty
ECT sensor faulty
ECM and/or its circuit faulty
Magnet clutch faulty
Belt loosened or broken
Compressor faulty
Compressor relay faulty
Fuse blown
Wiring or grounding faulty
Radiator cooling fan motor relay faulty
Radiator cooling fan motor faulty
ECM and/or its circuit faulty
Fuse blown
Blower motor resistor faulty
Blower speed selector faulty
Wiring or grounding faulty
Blower motor faulty
Correction
Perform recovery, evacuation and charge.
Check related fuses, and check short cir-
cuit to ground.
Check A/C switch.
Check blower speed selector referring to
"Blower Speed Selector Inspection" in
Section 1A.
Check pressure sensor.
Repair as necessary.
Check ECT sensor referring to Section
6E3.
Check ECM and its circuit referring to Sec-
tion 6E3.
Check magnet clutch.
Adjust or replace belt.
Check compressor.
Check compressor relay.
Check related fuses, and check for short
circuit to ground.
Repair as necessary.
Check radiator cooling fan motor relay.
Check radiator cooling fan motor.
Check ECM and its circuit referring to Sec-
tion 6E3.
Check related fuses, and check for short
circuit to ground.
Check blower motor resistor referring to
"Blower Motor Resistor Inspection" in Sec-
tion 1A.
Check blower speed selector referring to
"Blower Speed Selector Inspection" in
Section 1A.
Repair as necessary.
Check blower motor referring to "Blower
Motor Inspection" in Section 1A.