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INSPECTION

INSPECTION

Symptom Problem parts
A/C system fails to operate.


• 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 is blown out.


• Fuse (M/B No. 5, F/B No. 17)

• Connector (Poor contact)


Illumination cannot dim.


• Fuse (M/B No. 5, F/B No. 17)

• Connector (Poor contact)

• Auto A/C control module


Blower fan does not rotate or fan speed cannot be controlled.


• Fuse (M/B No. 5, F/B No. 17)

• Connector (Poor contact)

• Ground

• Auto A/C control module

• Blower fan motor

• Blower fan relay


Unable to switch suction vents.


• Connector (Poor contact)

• Auto A/C control module

• Intake door actuator


Unable to switch blow vents.


• Connector (Poor contact)

• Auto A/C control module

• Mode door actuator


Compartment temperature does not increase. (No hot air is discharged.)


• 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


Compartment temperature does not decrease. (No cool air is discharged.)


• 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


Compartment temperature is higher or lower than setting temperature.


• Auto A/C control module

• Air mix door actuator

• In-vehicle sensor, ambient sensor, evaporator sensor and sunload sensor

• In-vehicle sensor aspirator hose


Compartment temperature does not quickly respond to setting temperature.


• Air mix door actuator

• In-vehicle sensor, ambient sensor, evaporator sensor and sunload sensor

• In-vehicle sensor aspirator hose


Radiator fan does not rotate during A/C operation.


• Radiator fan motor

• Radiator fan relay