RM38N0EC _58 Vehicle Interior _111841 HEATING / AIR CONDITIONING _0499788 AIR CONDITIONING SYSTEM(for Gasoline Model) J

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Gasoline Model)  PM2.5 Concentration Level is not Displayed Correctly (Value does not Change)  


DESCRIPTION

If the PM2.5 concentration level display is abnormal, the following suspected areas may be the cause.

Symptom Factor
PM2.5 concentration level is not correctly displayed (level does not change)
·

Air conditioning control panel malfunction

·

Clogged clean air filter

·

Air conditioning particulate matter sensor (air conditioning duct sub-assembly) not correctly installed

·

Air conditioning particulate matter sensor (Air conditioning duct sub-assembly) malfunction



PROCEDURE

2.CONFIRM CONDITION
a.

Choose the problem to be inspected.


Result:
Result Proceed to
The PM2.5 concentration level is not displayed A
The PM2.5 concentration level display does not change from red or yellow B
The PM2.5 concentration level display does not change from green C



A

REPLACE AIR CONDITIONING CONTROL ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL>REMOVAL


B

3.CHECK CLEAN AIR FILTER

C

7.CHECK AIR CONDITIONING PARTICULATE MATTER SENSOR (AIR CONDITIONING DUCT SUB-ASSEMBLY)
3.CHECK CLEAN AIR FILTER
a.

Visually check the clean air filter.

Click hereGeneral>MAINTENANCE>AIR CONDITIONING FILTER>REMOVAL

OK:

The clean air filter is not dirty or clogged.



Result:
Proceed to
OK
NG



OK

4.READ VALUE USING GTS

NG

5.REPLACE CLEAN AIR FILTER
4.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Body Electrical > Air Conditioner > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
PM Sensor Contamination Level Air conditioning particulate matter sensor (Air conditioning duct sub-assembly) 0 to 65535 Actual PM concentration level is displayed -
Body Electrical > Air Conditioner > Data List
Tester Display
PM Sensor Contamination Level
50003 450 123
OK:

The value of the display changes frequently.


HINT:

As the value range is large, it is expected that the value will continually fluctuate around a certain value even if the actual PM concentration level inside the vehicle does not change.



Result:
Proceed to
OK
NG



OK

6.CHECK THAT PM2.5 CONCENTRATION LEVEL CHANGES (MANUAL MODE)

NG

REPLACE AIR CONDITIONING PARTICULATE MATTER SENSOR (AIR CONDITIONING DUCT SUB-ASSEMBLY)

Click hereVehicle Interior>HEATING / AIR CONDITIONING>FRONT AIR CONDITIONING UNIT>DISASSEMBLY


5.REPLACE CLEAN AIR FILTER

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING FILTER>REMOVAL

Result:
Proceed to
NEXT



NEXT

6.CHECK THAT PM2.5 CONCENTRATION LEVEL CHANGES (MANUAL MODE)
6.CHECK THAT PM2.5 CONCENTRATION LEVEL CHANGES (MANUAL MODE)
a.

Set the air inlet mode to recirculation mode.


b.

Set the PM2.5 removal mode switch to ON.

OK:

The PM2.5 concentration level display changes to green after a certain period of time.



Result:
Proceed to
OK
NG



OK

END

NG

REPLACE AIR CONDITIONING CONTROL ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL>REMOVAL


7.CHECK AIR CONDITIONING PARTICULATE MATTER SENSOR (AIR CONDITIONING DUCT SUB-ASSEMBLY)
a.

Check the installation condition of the air conditioning particulate matter sensor (air conditioning duct sub-assembly).

OK:

The air conditioning particulate matter sensor (air conditioning duct sub-assembly) is installed correctly.



Result:
Proceed to
OK
NG



OK

8.READ VALUE USING GTS

NG

9.INSTALL AIR CONDITIONING PARTICULATE MATTER SENSOR (AIR CONDITIONING DUCT SUB-ASSEMBLY)
8.READ VALUE USING GTS
a.

Read the Data List according to the display on the GTS.

Body Electrical > Air Conditioner > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
PM Sensor Contamination Level Air conditioning particulate matter sensor (Air conditioning duct sub-assembly) 0 to 65535 Actual PM concentration level is displayed -
Body Electrical > Air Conditioner > Data List
Tester Display
PM Sensor Contamination Level
50003 450 123
OK:

The value of the display changes frequently.


HINT:

As the value range is large, it is expected that the value will continually fluctuate around a certain value even if the actual PM concentration level inside the vehicle does not change.



Result:
Proceed to
OK
NG



OK

10.CHECK AIR CONDITIONING DUCT SUB-ASSEMBLY

NG

REPLACE AIR CONDITIONING PARTICULATE MATTER SENSOR (AIR CONDITIONING DUCT SUB-ASSEMBLY)

Click hereVehicle Interior>HEATING / AIR CONDITIONING>FRONT AIR CONDITIONING UNIT>DISASSEMBLY


10.CHECK AIR CONDITIONING DUCT SUB-ASSEMBLY
a.

Set the air inlet mode to recirculation mode.


b.

Set the PM2.5 removal mode switch to ON.

OK:

The PM2.5 concentration level display changes to yellow or red after a certain period of time.


HINT:

The PM2.5 concentration level display changes to green after a certain period of time.



Result:
Proceed to
OK
NG



OK

END

NG

REPLACE AIR CONDITIONING CONTROL ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING PANEL>REMOVAL