RM35X0E _58 Vehicle Interior _079316 HEATING / AIR CONDITIONING _0386651 AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System) J

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Automatic Air Conditioning System)  No Cooling at All  


DESCRIPTION

If cool air is not discharged (air is discharged), the following malfunctions are possible.

Malfunction Status Factor
for Front:

Cool air is not discharged. (Air is discharged.)


·

Compressor with magnet clutch assembly malfunction

·

Refrigerant pressure malfunction

·

Lack of refrigerant gas

·

Dirty cooler condenser

·

Cooling fan system malfunction

·

Air mix damper and link operation (jamming)

·

No. 1 cooler thermistor (determined as cold, conflicting with actual temperature)

·

Warm air flow


for Rear:

Cool air is not discharged. (Air is discharged.) (for Rear Automatic Air Conditioning)


·

Air mix damper and link operation (jamming)

·

No. 2 cooler thermistor (determined as cold, conflicting with actual temperature)

·

Cooler expansion valve

·

Warm air flow



PROCEDURE

1.CHECK MALFUNCTION STATUS
Result:
Result Proceed to
for Front A
for Rear (w/ Integration Control Panel (for Rear Automatic Air Conditioning)) B



A

2.CHECK AIR CONDITIONING CONTROL ASSEMBLY (SWITCH INDICATOR)

B

4.CHECK INTEGRATION CONTROL AND PANEL ASSEMBLY (SWITCH INDICATOR)
2.CHECK AIR CONDITIONING CONTROL ASSEMBLY (SWITCH INDICATOR)
a.

Operate each switch on the air conditioning control assembly to check that the switch indicators are illuminated normally.

OK:

Switch indicators are illuminated normally.



Result:
Proceed to
OK
NG



OK

3.PERFORM ACTIVE TEST USING GTS (SERVO PULSE)

NG

GO TO OPERATION NOT ACCEPTED EVEN IF AIR CONDITIONING SWITCH IS OPERATED

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


3.PERFORM ACTIVE TEST USING GTS (SERVO PULSE)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Air Conditioner / Active Test.


e.

Check the operation by referring to the table below.

Body Electrical > Air Conditioner > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Air Mix Servo Targ Pulse(D) No. 1 air conditioning radiator damper servo sub-assembly (air mix) pulse Min.: 128
Max.: 383 		Operates between 165 to 257 pulses
Body Electrical > Air Conditioner > Active Test
Tester Display
Air Mix Servo Targ Pulse(D)
50004 121 24
OK:

Damper servo motor is operated.



Result:
Proceed to
OK
NG



OK

GO TO ON-VEHICLE INSPECTION

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System)>ON-VEHICLE INSPECTION


NG

GO TO DIAGNOSTIC TROUBLE CODE CHART (FOR SERVO MOTOR OF APPLICABLE ABNORMAL OPERATION (DTC B1441))

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System)>B1441


4.CHECK INTEGRATION CONTROL AND PANEL ASSEMBLY (SWITCH INDICATOR)
a.

Operate each switch on the integration control and panel assembly to check that the switch indicators are illuminated normally.

OK:

Switch indicators are illuminated normally.



Result:
Proceed to
OK
NG



OK

5.PERFORM ACTIVE TEST USING GTS (SERVO PULSE)

NG

GO TO OPERATION NOT ACCEPTED EVEN IF AIR CONDITIONING SWITCH IS OPERATED

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


5.PERFORM ACTIVE TEST USING GTS (SERVO PULSE)
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Body Electrical / Air Conditioner / Active Test.


e.

Check the operation by referring to the table below.

Body Electrical > Air Conditioner > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Rear Air Mix Servo Targ Pulse No. 1 rear cooling unit damper servo motor sub-assembly (rear air mix) pulse Min.: 128
Max.: 383 		Operates between 254 and 299 pulses
OK:

Damper servo motor is operated.


Body Electrical > Air Conditioner > Active Test
Tester Display
Rear Air Mix Servo Targ Pulse
50004 121 36

Result:
Proceed to
OK
NG



OK

GO TO ON-VEHICLE INSPECTION

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System)>ON-VEHICLE INSPECTION


NG

GO TO DIAGNOSTIC TROUBLE CODE CHART (FOR SERVO MOTOR OF APPLICABLE ABNORMAL OPERATION (DTC B1447))

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Automatic Air Conditioning System)>B1447