Infiniti FX35 / FX45. Manual - part 108

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< SERVICE INFORMATION >

AIR CONDITIONER CONTROL

• When pressing AUTO switch, air inlet, air outlet, fan speed, and discharge air temperature are automatically

controlled.

TEMPERATURE CONTROL SWITCH (POTENTIO TEMPERATURE CONTROL) (DRIVER SIDE)

The set temperature is increased or decreased with this switch.

TEMPERATURE CONTROL SWITCH (POTENTIO TEMPERATURE CONTROL) (PASSENGER
SIDE)

• The set temperature is increased or decreased with this switch.
• When the temperature switch is pressed, the DUAL switch indicator will automatically illuminate.

INTAKE SWITCH

• When intake switch is ON, REC LED turns ON, and air inlet is fixed to REC.
• When press intake switch again, FRE LED turns ON, and air inlet is fixed to FRE.
• When intake switch is pressed for approximately 1.5 seconds or longer, FRE and REC LEDs blink twice.

Then, automatic control mode is entered. Inlet status is displayed by LED even during automatic controlled.

• When FRE LED is turned ON, shifting mode position to D/F or DEF, or when compressor is turned from ON

to OFF, intake switch is automatically turned OFF (fixed to FRE mode). REC mode can be re-entered by
pressing intake switch again, and then compressor is turned ON. (Except D/F or DEF position)

DEFROSTER (DEF) SWITCH

Mode doors are set to the defrost position with this switch. Also, intake doors are set to the outside air position,
and compressor turns ON.

REAR WINDOW DEFOGGER SWITCH

When illumination is ON, rear window is defogged.

OFF SWITCH

Compressor and blower are OFF, the intake doors and the mode doors are automatically controlled.

A/C SWITCH

Compressor is ON or OFF with this switch.
(Pressing the A/C switch when the A/C switch is ON will turn OFF the A/C switch and compressor.)

MODE SWITCH

The air discharge outlets is controlled with this switch.

FAN SWITCH

The blower speed is manually controlled with this switch. Seven speeds are available for manual control (as
shown on the display screen).

DUAL SWITCH 

• When the DUAL switch indicator is illuminated, the driver side and passenger side temperature can each be

set independently.

• When the DUAL switch indicator is not illuminated, the driver side setting temperature is applied to both

sides.

Fail-Safe Function

INFOID:0000000001328171

If a communication error exists between the unified meter and A/C amp., and the A/C and AV switch for 30
seconds or longer, air conditioner is controlled under following conditions:

Compressor

: ON

Air outlet

: AUTO

Air inlet

: FRE (Fresh)

Blower fan speed

: AUTO

Set temperature

: Setting before communication error occurs

Display

: OFF

AIR CONDITIONER CONTROL

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Discharge Air Flow

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SJIA1568E

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AIR CONDITIONER CONTROL

System Description

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SWITCHES AND THEIR CONTROL FUNCTION

CAN Communication System Description

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CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-

SJIA1610E

SJIA1890E

AIR CONDITIONER CONTROL

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tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only. For details, refer to 

LAN-43,

"CAN System Specification Chart"

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