RM38T0EC _58 Vehicle Interior _104612 HEATING / AIR CONDITIONING _0601796 AIR CONDITIONING SYSTEM(for HEV Model) J

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for HEV Model)  No Cool Air Comes Out  


DESCRIPTION

If warm air blows from the registers regardless of the temperature setting of the air conditioning system, the following factors may be the cause.

Symptom Factor
No cool air comes out

(Blower control is normal)


·

Compressor with pulley assembly malfunction

·

Refrigerant pressure is extremely high or low

·

Refrigerant volume (low)

·

Clogged cooler condenser assembly fins

·

Cooling fan system malfunction

·

Mechanical locking of damper and damper link

·

No. 1 cooler thermistor malfunction

·

High inlet air temperature



PROCEDURE

1.CHECK SWITCH INDICATOR
a.

Operate each switch on the air conditioning control assembly and check that the switch indicators operate normally.

OK:

All switch indicators operate normally.



Result:
Proceed to
OK (for Dual Type) A
OK (for Single Type) B
NG C



A

2.PERFORM ACTIVE TEST USING GTS

B

3.PERFORM ACTIVE TEST USING GTS

C

GO TO OTHER DIAGNOSIS PROCEDURE (Operation not Accepted Even If Air Conditioning Switch is Operated)

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for HEV Model)>Operation not Accepted Even If Air Conditioning Switch is Operated


2.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Air Conditioner > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Front Left Air Mix Damper Control Servo Motor No. 1 air conditioning radiator damper servo sub-assembly pulse Min.: 128
Max.: 384 		Operates between 165 to 257 pulses
Front Right Air Mix Damper Control Servo Motor No. 1 air conditioning radiator damper servo sub-assembly pulse Min.: 128
Max.: 384 		Operates between 255 to 347 pulses
Body Electrical > Air Conditioner > Active Test
Active Test Display
Front Left Air Mix Damper Control Servo Motor
Data List Display
Front Left Air Mix Damper Control Servo Motor Actual Pulse
50004 450 26 201
Body Electrical > Air Conditioner > Active Test
Active Test Display
Front Right Air Mix Damper Control Servo Motor
Data List Display
Front Right Air Mix Damper Control Servo Motor Actual Pulse
50004 450 28 205
OK:

The No. 1 air conditioning radiator damper servo motor operates.



Result:
Proceed to
OK
NG



OK

INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

Click hereVehicle Interior>HEATING / AIR CONDITIONING>REFRIGERANT>ON-VEHICLE INSPECTION


NG

GO TO DTC TROUBLESHOOTING PROCEDURE FOR MALFUNCTIONING DAMPER SERVO MOTOR

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for HEV Model)>DIAGNOSTIC TROUBLE CODE CHART


3.PERFORM ACTIVE TEST USING GTS
a.

Perform the Active Test according to the display on the GTS.

Body Electrical > Air Conditioner > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Front Air Mix Damper Control Servo Motor No. 1 air conditioning radiator damper servo sub-assembly pulse Min.: 128
Max.: 384 		Operates between 165 to 257 pulses
Body Electrical > Air Conditioner > Active Test
Active Test Display
Front Air Mix Damper Control Servo Motor
Data List Display
Front Air Mix Damper Control Servo Motor Actual Pulse
50004 450 46 241
OK:

The No. 1 air conditioning radiator damper servo motor operates.



Result:
Proceed to
OK
NG



OK

INSPECT REFRIGERANT PRESSURE WITH MANIFOLD GAUGE SET

Click hereVehicle Interior>HEATING / AIR CONDITIONING>REFRIGERANT>ON-VEHICLE INSPECTION


NG

GO TO DTC TROUBLESHOOTING PROCEDURE FOR MALFUNCTIONING DAMPER SERVO MOTOR

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for HEV Model)>DIAGNOSTIC TROUBLE CODE CHART