If the blower airflow volume is weak regardless of the integration control and panel assembly being normal, the following causes are possible.
| Malfunction Status | Factor |
|---|---|
·
Blower airflow volume is continuously weak ·
Blower airflow volume is sometimes weak |
·
Communication malfunction between air conditioning amplifier assembly and blower with fan motor sub-assembly ·
Air conditioning amplifier assembly malfunction ·
Blower with fan motor sub-assembly malfunction ·
Clean air filter is clogging ·
Evaporator or heater core fin clogging ·
ECO drive mode function (air flow volume is restricted due to ECO drive mode being selected) ·
Aspirator dropped |
Prepare the vehicle according to the table below in manual mode.
| Blower Switch | Condition |
|---|---|
| LO → HI | ·
Temperature setting: Max COLD ·
Mode switch: FACE ·
A/C switch: Off |
Airflow volume is changed.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Confirm setup of the ECO drive mode and turn it off if it is on.
When ECO drive mode is on, the air conditioning amplifier assembly ensures a minimum level of air conditioning control based on certain conditions, thereby contributing to improved fuel efficiency. Accordingly, explain to customers that the air volume will be weaker in these situations.
| Control | Control Summary |
|---|---|
| Airflow Control | Automatically switches the air inlet port to the internal air circulation mode when the outside air temperature is equal to or higher than a predetermined temperature and reduces the power consumption. |
| Air Inlet Control | Sets the blower level in AUTO mode lower than normal, and suppresses the power consumption. |
If integration control and panel assembly (ECO switch) is malfunctioning, perform diagnosis on the ECO switch circuit.
| Proceed to |
|---|
| NEXT |
NEXT
Visually check the clean air filter.
The clean air filter is not dirty or clogging.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check the installation condition of the No. 1 cooler thermistor.
No. 1 cooler thermistor is installed correctly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG
Check the installation condition of the aspirator.
Aspirator is installed correctly.
| Proceed to |
|---|
| OK |
| NG |
OK
NG