RM36D0EC _58 Vehicle Interior _083104 HEATING / AIR CONDITIONING _0402828 AIR CONDITIONING SYSTEM(for Gasoline Model) J

HEATING / AIR CONDITIONING  AIR CONDITIONING SYSTEM(for Gasoline Model)  ECO Switch Circuit  


DESCRIPTION

The ECO drive mode control is activated for the air conditioning system by operating the integration control and panel assembly (ECO switch).

When the air conditioning system control cannot be performed while in ECO drive mode due to a malfunction etc., the following causes are possible.

Malfunction Status Factor
·

Even if ECO drive mode is selected, the air vent cannot be controlled

·

Even if ECO drive mode is not selected, the air vent cannot be controlled


·

Air conditioning amplifier assembly malfunction

·

Integration control and panel assembly (ECO switch) malfunction

·

Harness or connector



WIRING DIAGRAM

E261769E49
4.542,1.833 4.99,2.083 0.448,0.25 10 false G46 4.542,2 6.885,2.292 2.344,0.292 10 false Air Conditioning Amplifier Assembly 4.74,0.573 4.99,0.76 0.25,0.188 10 false 11 5.021,0.688 5.438,0.833 0.417,0.146 10 false ECOS 2.24,0.573 2.458,0.844 0.219,0.271 10 false 7 1.823,0.573 2.188,0.76 0.365,0.188 10 false ECU 2.24,1.198 2.479,1.427 0.24,0.229 10 false 13 1.823,1.208 2.188,1.406 0.365,0.198 10 false GND 0.708,2 2.531,2.521 1.823,0.521 10 false Integration Control and Panel Assembly (ECO Switch) 0.708,1.844 1.208,2.156 0.5,0.313 10 false G32

PROCEDURE

1.READ VALUE USING GTS (ECO SWITCH)
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
ECO Switch Integration control and panel assembly (ECO switch) OFF or ON ON: Integration control and panel assembly (ECO switch) being turned and held at ECO position
OFF: Integration control and panel assembly (ECO switch) not turned 		-
Body Electrical > Air Conditioner > Data List
Tester Display
ECO Switch
50003 450 282
OK:

Integration control and panel assembly (ECO switch) condition displayed on the GTS changes with the actual switch operation.


Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

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


NG

2.INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY (ECO SWITCH)
2.INSPECT INTEGRATION CONTROL AND PANEL ASSEMBLY (ECO SWITCH)

Click hereVehicle Interior>HEATING / AIR CONDITIONING>COMBINATION SWITCH>INSPECTION

Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY AND BODY GROUND)

NG

REPLACE INTEGRATION CONTROL AND PANEL ASSEMBLY (ECO SWITCH)

for K121:Drivetrain>K121 (CVT)>COMBINATION SWITCH>REMOVAL

for K121F:Drivetrain>K121F (CVT)>COMBINATION SWITCH>REMOVAL



3.CHECK HARNESS AND CONNECTOR (INTEGRATION CONTROL AND PANEL ASSEMBLY - AIR CONDITIONING AMPLIFIER ASSEMBLY AND BODY GROUND)
a.

Disconnect the G32 integration control and panel assembly (ECO switch) connector.


b.

Disconnect the G46 air conditioning amplifier assembly connector.


c.

Measure the resistance according to the value(s) in the table below.

Standard Resistance:
Tester Connection Condition Specified Condition
G32-7 (ECU) - G46-11 (ECOS) Always Below 1 Ω
G32-13 (GND) - Body ground Always Below 1 Ω
G32-7 (ECU) or G46-11 (ECOS) - Other terminals and body ground Always 10 kΩ or higher



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

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


NG

REPAIR OR REPLACE HARNESS OR CONNECTOR