Subaru IMPREZA GD 2007 Series Manual page 3896

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9. Diagnostics with Phenomenon
A: INSPECTION
Symptom
A/C system fails to operate.
Fuse is blown out.
Illumination cannot dim.
Blower fan does not rotate or fan speed cannot be controlled.
Unable to switch suction vents.
Unable to switch vents.
The compartment temperature does not rise. (Warm air does
not come out.)
The compartment temperature does not lower. (Cold air does
not come out.)
Compartment temperature is higher or lower than setting tem-
perature.
Compartment temperature does not quickly respond to setting
temperature.
Radiator fan does not rotate during A/C operation.
Diagnostics with Phenomenon
• Fuse (M/B No. 5, F/B No. 17)
• Connector (Poor contact)
• Ground
• Auto A/C control module
• Blower fan motor
• Blower fan relay
• A/C relay
• Compressor (Magnet clutch)
• Evaporator sensor
• Fuse (M/B No. 5, F/B No. 17)
• Connector (Poor contact)
• Fuse (M/B No. 5, F/B No. 17)
• Connector (Poor contact)
• Auto A/C control module
• Fuse (M/B No. 7, F/B No. 17)
• Connector (Poor contact)
• Ground
• Auto A/C control module
• Blower fan motor
• Blower fan relay
• Connector (Poor contact)
• Auto A/C control module
• Intake door actuator
• Connector (Poor contact)
• Auto A/C control module
• Mode door actuator
• Connector (Poor contact)
• Auto A/C control module
• Air mix door actuator
• In-vehicle sensor, ambient sensor, evaporator sensor and
sunload sensor
• In-vehicle sensor aspirator hose
• Connector (Poor contact)
• Auto A/C control module
• Air mix door actuator
• A/C relay
• Compressor (Magnet clutch)
• Radiator fan motor
• Radiator fan relay
• In-vehicle sensor, ambient sensor, evaporator sensor and
sunload sensor
• In-vehicle sensor aspirator hose
• Auto A/C control module
• Air mix door actuator
• In-vehicle sensor, ambient sensor, evaporator sensor and
sunload sensor
• In-vehicle sensor aspirator hose
• Air mix door actuator
• In-vehicle sensor, ambient sensor, evaporator sensor and
sunload sensor
• In-vehicle sensor aspirator hose
• Radiator fan motor
• Radiator fan relay
AC(diag)-31
HVAC SYSTEM (AUTO A/C) (DIAGNOSTICS)
Problem parts