RM3660EC _58 Vehicle Interior _080733 HEATING / AIR CONDITIONING _0591216 AIR CONDITIONING SYSTEM(for Gasoline Model (NR Series) with Manual Air Conditioning System for Mechanical Control Type) J

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Gasoline Model (NR Series) with Manual Air Conditioning System for Mechanical Control Type)  No Warm Air Comes Out  


DESCRIPTION

If cool 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 warm air comes out

(Blower control is normal)

·

Outlet air temperature does not increase

(Blower control is normal)


·

Engine coolant temperature (low)

·

Warm-up control

·

Blockage in heater radiator unit sub-assembly

·

Quick heater assembly malfunction

·

Heater radiator unit sub-assembly malfunction



PROCEDURE

1.READ VALUE USING GTS
a.

Connect the GTS to the DLC3.


b.

Turn the ignition switch to ON.


c.

Turn the GTS on.


d.

Enter the following menus: Powertrain / Engine / Data List.


e.

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

Powertrain > Engine > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Coolant Temperature Engine coolant temperature Min.: -40°C (-40°F), Max.: 140°C (284°F) 75 to 100°C (167 to 212°F): After warming up This is the engine coolant temperature.
HINT:
·

After warming up the engine, the engine coolant temperature will be 75 to 100°C (167 to 212°F).

·

After a long soak, the engine coolant temperature, intake air temperature and ambient air temperature will be approximately equal.

·

If the value is -40°C (-40°F), or higher than 135°C (275°F), the sensor circuit is open or shorted.

·

Check if the engine overheats if the value indicated is higher than 135°C (275°F).



Powertrain > Engine > Data List
Tester Display
Coolant Temperature
50003 372 205
OK:

After warming up the engine, the temperature value displayed is within the range specified in the normal condition column.



Result:
Proceed to
OK
NG



OK

2.PERFORM ACTIVE TEST USING GTS

NG

GO TO COOLING SYSTEM

Click hereEngine / Hybrid System>NR Series (COOLING)>COOLING SYSTEM>ON-VEHICLE INSPECTION


2.PERFORM ACTIVE TEST USING GTS
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 / Heater Active Level / Data List / Electric Heater Active Level.

Body Electrical > Air Conditioner > Active Test
Tester Display Measurement Item Control Range Diagnostic Note
Heater Active Level Quick heater assembly Min.: 0
Max.: 3 		-
Body Electrical > Air Conditioner > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
Electric Heater Active Level Actual electric heater operation level Min.: 0
Max.: 3 		Actual operation level of electric heater displayed PTC heater circuit malfunction
Body Electrical > Air Conditioner > Active Test
Active Test Display
Heater Active Level
Data List Display
Electric Heater Active Level
50004 121 33 164

e.

Check that the value of the Data List item Electric Heater Active Level changes in accordance with the set value of the Active Test item Heater Active Level.

OK:
GTS Operation Data List (Electric Heater Active Level)
0 to 3 0 to 3



Result:
Proceed to
OK
NG



OK

REPLACE HEATER RADIATOR UNIT SUB-ASSEMBLY

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING UNIT (for Gasoline Model)>DISASSEMBLY


NG

GO TO PTC HEATER CIRCUIT

Click hereVehicle Interior>HEATING / AIR CONDITIONING>AIR CONDITIONING SYSTEM (for Gasoline Model (NR Series) with Manual Air Conditioning System for Mechanical Control Type)>PTC Heater Circuit