Nissan Pathfinder (2007 year). Manual - part 322

AIR CONDITIONER CONTROL

MTC-23

MTC

2007 Pathfinder

ECM judges whether compressor can be turned ON, based on each sensor status (refrigerant pressure sen-
sor signal, throttle angle sensor, etc.). If it judges compressor can be turned ON, it sends compressor ON sig-
nal to IPDM E/R, via CAN communication line.
Upon receipt of compressor ON signal from ECM, IPDM E/R turns air conditioner relay ON to operate com-
pressor.

MTC-24

AIR CONDITIONER CONTROL

2007 Pathfinder

Description of Control System

EJS004RA

The control system consists of input sensors, switches, the front air control (microcomputer) and outputs.
The relationship of these components is shown in the figure below:

WJIA1294E

AIR CONDITIONER CONTROL

MTC-25

MTC

2007 Pathfinder

Control Operation

EJS004RB

Front air control

TEMPERATURE CONTROL DIAL (TEMPERATURE CONTROL)

Increases or decreases the set temperature.

RECIRCULATION () SWITCH

●

When REC switch is ON, REC switch indicator turns ON, and air inlet is set to REC.

●

When REC switch is turned OFF, or when compressor is turned from ON to OFF, REC switch is automati-
cally turned OFF. REC mode can be re-entered by pressing REC switch again.

●

REC switch is not operated when DEF switch is turned ON, or at the D/F position.

DEFROSTER () SWITCH

Positions the air outlet doors to the defrost position. Also positions the intake doors to the outside air position.

REAR WINDOW DEFOGGER SWITCH

When switch is ON, rear window is defogged.

OFF SWITCH (BLOWER SPEED SET TO 0)

The compressor and blower are OFF.

A/C SWITCH

The compressor is ON or OFF.
(Pressing the A/C switch when the AUTO switch is ON will turn off the A/C switch and compressor.)

MODE DIAL

Controls the air discharge outlets.

FRONT BLOWER CONTROL DIAL

Manually controls the four blower speeds.

WJIA1510E

Temperature control dial

Blower control dial

A/C switch

Rear window defogger switch

Recirculation switch

Mode dial

MTC-26

AIR CONDITIONER CONTROL

2007 Pathfinder

Discharge Air Flow

EJS004RC

FRONT

Mode door position

Air outlet/distribution

Vent

Foot

Defroster

95%

—

60%

40%

—

20%

55%

25%

15%

50%

35%

15%

78%

Airflow always present at driver and passenger side demisters

WJIA1296E

AIR CONDITIONER CONTROL

MTC-27

MTC

2007 Pathfinder

System Description

EJS004RD

SWITCHES AND THEIR CONTROL FUNCTION

WJIA1496E

WJIA1497E

MTC-28

AIR CONDITIONER CONTROL

2007 Pathfinder

CAN Communication System Description

EJS004RE

Refer to

LAN-4, "SYSTEM DESCRIPTION"

TROUBLE DIAGNOSIS

MTC-29

MTC

2007 Pathfinder

TROUBLE DIAGNOSIS

PFP:00004

CONSULT-II Function (BCM)

EJS004RF

CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.

CONSULT-II START PROCEDURE

Refer to

GI-38, "CONSULT-II Start Procedure"

DATA MONITOR
Display Item List

How to Perform Trouble Diagnosis for Quick and Accurate Repair

EJS004RG

WORK FLOW

SYMPTOM TABLE

BCM diagnostic

test item

Diagnostic mode

Description

Inspection by part

WORK SUPPORT

Supports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.

DATA MONITOR

Displays BCM input/output data in real time.

ACTIVE TEST

Operation of electrical loads can be checked by sending drive signal to them.

SELF-DIAG RESULTS

Displays BCM self-diagnosis results.

CAN DIAG SUPPORT MNTR

The result of transmit/receive diagnosis of CAN communication can be read.

ECU PART NUMBER

BCM part number can be read.

CONFIGURATION

Performs BCM configuration read/write functions.