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)  Idle Up Switch Circuit  


DESCRIPTION

When the idle up switch is pushed, the air conditioning amplifier assembly outputs the engine idle up signal. If engine idle up does not occur when the idle up switch is pushed, there may be a problem in the circuit shown below.

Malfunction Status Factor
Engine idle up does not occur when idle up switch is pushed while engine is cold. Idle up switch circuit malfunction

WIRING DIAGRAM

E414344E01
5.417,0.885 6.031,1.083 0.615,0.198 10 false SWVC 5.115,0.885 5.333,1.083 0.219,0.198 10 false 12 4.198,0.885 4.417,1.083 0.219,0.198 10 false 5 2.271,0.885 2.49,1.083 0.219,0.198 10 false 2 2.906,1.385 3.281,1.583 0.375,0.198 10 false N11 2.906,1.542 3.906,1.74 1,0.198 10 false Idle Up Switch 5.26,1.896 5.635,2.094 0.375,0.198 10 false N42 5.25,2.073 6.813,2.604 1.563,0.531 10 false Air Conditioning Amplifier Assembly

PROCEDURE

1.READ VALUE USING GTS (IDLE UP/PWR HEAT SWITCH)
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 / Data List.


e.

Check the value(s) by referring to the table below.

Body Electrical > Air Conditioner > Data List
Tester Display Measurement Item Range Normal Condition Diagnostic Note
IDLE UP/PWR HEAT Switch Idle up switch ON or OFF ON: Idle up switch on
OFF: Idle up switch off 		-
Body Electrical > Air Conditioner > Data List
Tester Display
IDLE UP/PWR HEAT Switch
50003 121 173
OK:

The display is as specified in the normal condition column.



Result:
Proceed to
OK
NG



OK

REPLACE AIR CONDITIONING AMPLIFIER ASSEMBLY

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


NG

2.INSPECT IDLE UP SWITCH
2.INSPECT IDLE UP SWITCH
a.

Remove the idle up switch.

Click hereVehicle Interior>HEATING / AIR CONDITIONING>HEATER SWITCH>REMOVAL


b.

Inspect the idle up switch.

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


Result:
Proceed to
OK
NG



OK

3.CHECK HARNESS AND CONNECTOR (IDLE UP SWITCH - AIR CONDITIONING AMPLIFIER ASSEMBLY AND BODY GROUND)

NG

REPLACE IDLE UP SWITCH

Click hereVehicle Interior>HEATING / AIR CONDITIONING>HEATER SWITCH>REMOVAL


3.CHECK HARNESS AND CONNECTOR (IDLE UP SWITCH - AIR CONDITIONING AMPLIFIER ASSEMBLY AND BODY GROUND)
a.

Disconnect the N11 idle up switch connector.


b.

Disconnect the N42 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
N11-5 - N42-12 (SWVC) Always Below 1 Ω
N11-2 - Body ground Always Below 1 Ω
N11-5 or N42-12 (SWVC) - 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