Nissan Pathfinder (2009 year). Manual - part 453

AUTOMATIC AIR CONDITIONER SYSTEM

HAC-19

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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Switches And Their Control Function (Front) 

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WJIA1680E

AWIIA0236GB

2009 Pathfinder

HAC-20

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

AUTOMATIC AIR CONDITIONER SYSTEM

Switches And Their Control Function (Rear)

INFOID:0000000003935880

AWIIA0239GB

AWIIA0240GB

2009 Pathfinder

DIAGNOSIS SYSTEM (HVAC)

HAC-21

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[AUTOMATIC AIR CONDITIONER]

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DIAGNOSIS SYSTEM (HVAC)

CONSULT-III Function (HVAC)

INFOID:0000000003935882

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

SELF-DIAGNOSIS

Display Item List

DATA MONITOR

Display Item List

Diagnostic mode

Description

SELF-DIAG RESULTS 

Displays A/C auto amp. self-diagnosis results.

DATA MONITOR

Displays A/C auto amp. input/output data in real time.

CAN DIAG SUPPORT MNTR

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

ECU PART NUMBER

A/C auto amp. part number can be read.

DTC

Description

Reference page

B2573

Battery voltage out of range

CHG-5, "Work Flow"

B2578

In-vehicle sensor circuit out of range (low)

HAC-81, "In-Vehicle Sensor Diagnosis Procedure"

B2579

In-vehicle sensor circuit out of range (high)

B257B

Ambient sensor circuit short

HAC-78, "Ambient Sensor Diagnosis Procedure"

B257C

Ambient sensor circuit open

B257F

Optical sensor (Driver) circuit open or short

HAC-84, "Optical Sensor Diagnosis Procedure"

.

B2580

Optical sensor (Passenger) circuit open or short

B2581

Intake sensor circuit short

HAC-86, "Intake Sensor Diagnosis Procedure"

B2582

Intake sensor circuit open

U1000

CAN bus fault

LAN-4, "System Description"

Monitor item

Value

Contents

BATT VIA CAN

"V"

Displays battery voltage signal.

IGN VIA CAN 

"ON/OFF"

Displays ignition switch signal.

DVR SUNLD SEN

"w/m2"

Displays optical sensor (driver) signal.

PAS SUNLD SEN

"w/m2"

Displays optical sensor (passenger) signal.

AMB TEMP SEN

"

°

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°

F"

Displays ambient sensor signal.

EVAP TEMP SEN

"

°

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°

F"

Displays intake sensor signal.

INCAR TMP SEN

"

°

C/

°

F"

Displays in-vehicle sensor signal.

RR TEMPSET FR

"V"

Displays air mix door (front) set point signal.

RR TEMPSET RR

"V"

Displays air mix door (rear) set point signal.

MODE FDBCK

"V"

Displays mode door motor feedback signal.

DVR MIX FDBCK

"V"

Displays air mix door motor (driver) feedback signal.

PAS MIX FDBCK

"V"

Displays air mix door motor (passenger) feedback signal.

RR FDBCK

"V"

Displays air mix door motor (rear) feedback signal.

2009 Pathfinder

HAC-22

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (BCM)

DIAGNOSIS SYSTEM (BCM)

CONSULT-III Function (BCM - COMMON ITEM)

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APPLICATION ITEM

CONSULT-III performs the following functions via CAN communication with BCM.

SYSTEM APPLICATION

BCM can perform the following functions for each system.
NOTE:
It can perform the diagnosis modes except the following for all sub system selection items.

1: With remote keyless entry system

2: With Intelligent Key

CONSULT-III Function (BCM - AUTO AIR CONDITIONER)

INFOID:0000000004364430

DATA MONITOR

Diagnosis mode

Function Description

WORK SUPPORT

Changes the setting for each system function.

SELF-DIAG RESULTS

Displays the diagnosis results judged by BCM. Refer to 

BCS-54, "DTC Index"

.

CAN DIAG SUPPORT MNTR

Monitors the reception status of CAN communication viewed from BCM.

DATA MONITOR

The BCM input/output signals are displayed.

ACTIVE TEST

The signals used to activate each device are forcibly supplied from BCM.

ECU IDENTIFICATION

The BCM part number is displayed.

CONFIGURATION

• Enables to read and save the vehicle specification.
• Enables to write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

WORK SUPPORT

DATA MONITOR

ACTIVE TEST

BCM

BCM

×

Door lock

DOOR LOCK

×

×

×

Rear window defogger

REAR DEFOGGER

×

Warning chime

BUZZER

×

×

Interior room lamp timer

INT LAMP

×

×

×

Remote keyless entry system

1

MULTI REMOTE ENT

×

×

×

Exterior lamp

HEAD LAMP

×

×

×

Wiper and washer

WIPER

×

×

×

Turn signal and hazard warning lamps

FLASHER

×

×

Air conditioner

AIR CONDITONER

×

Intelligent Key system

2

INTELLIGENT KEY

×

Combination switch

COMB SW

×

Immobilizer

IMMU

×

×

Interior room lamp battery saver

BATTERY SAVER

×

×

×

Back door open

TRUNK

×

×

RAP (retained accessory power)

RETAINED PWR

×

×

×

Signal buffer system

SIGNAL BUFFER

×

×

TPMS (tire pressure monitoring sys-
tem)

AIR PRESSURE MONITOR 

×

×

×

Vehicle security system

PANIC ALARM

×

2009 Pathfinder

DIAGNOSIS SYSTEM (BCM)

HAC-23

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[AUTOMATIC AIR CONDITIONER]

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Monitor Item

[Unit]

Contents

IGN ON SW [ON/OFF]

Display [ignition switch position (On)/(Off), ACC position (Off)] status as judged from ignition 
switch signal

FAN ON SIG [ON/OFF]

Display [FAN (On)/FAN (Off)] status as judged form blower fan motor switch signal

AIR COND SW [ON/OFF]

Display [COMP (On)/COMP (Off)] status as judged form air conditioner switch signal

2009 Pathfinder

HAC-24

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

SELF-DIAGNOSIS FUNCTION

SELF-DIAGNOSIS FUNCTION

A/C Auto Amp. Self-Diagnosis

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A/C SYSTEM SELF-DIAGNOSIS FUNCTION

The self-diagnosis function is built into the A/C auto amp. to quickly locate the cause of malfunctions.

DESCRIPTION

The self-diagnostic system diagnoses sensors, CAN system, and battery voltage on A/C auto amp. Refer to
applicable sections (items) for details. Fault codes (if any are present) will be displayed in the ambient temper-
ature display area. Refer to 

HAC-25, "A/C System Self-Diagnosis Code Chart"

.

SELF-DIAGNOSTIC MODE

NOTE:
Radio must be OFF.

1.

Turn the ignition switch ON.

2.

On the A/C and AV switch assembly, press the "SETTING" but-
ton and twist the volume knob clockwise and counterclockwise
until the Self-Diagnosis screen shows on the display. 

3.

Scroll down to "Confirmation/Adjustment" and press the
"ENTER" button.

4.

Scroll down to "Climate Control" and press the "ENTER" button.

5.

The fan bars will flash on the display during the self-test, and
then the fault codes will display in the ambient temperature area.
They will continue scrolling until diagnostic mode is exited.

6.

Exit by pressing the "BACK" button on A/C and AV switch
assembly until display returns to its normal operation screen.
HVAC system will be OFF or by turning the ignition switch OFF.

The self-diagnostic system diagnoses sensors, CAN system, and battery voltage on A/C auto amp. Refer to
applicable sections (items) for details. Fault codes (if any are present) will be displayed in the ambient temper-
ature display area. Refer to 

HAC-25, "A/C System Self-Diagnosis Code Chart"

.

A/C and AV Switch Assembly Self-Diagnosis

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A/C and AV switch assembly self-diagnosis function

The ON/OFF operation (continuity) of each switch in the A/C and AV switch assembly can be checked.

Self-diagnosis mode

AWNIA0098ZZ

AWIIA0081ZZ

2009 Pathfinder

SELF-DIAGNOSIS FUNCTION

HAC-25

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• Press the “BACK” switch and the “UP” switch within 10 seconds

after turning the ignition switch from OFF to ACC and hold them for
3 seconds or more. Then the buzzer sounds, all indicators of the
preset switch illuminate, and the self-diagnosis mode starts.

• The continuity of each switch and control dials (A/C and AV switch

assembly only) at the ON position can be checked by pressing
each switch and turning each control dial. The buzzer sounds and
LED's will illuminate if the switch is normal.

Finishing self-diagnosis mode

Self-diagnosis mode is canceled when turning the ignition switch OFF.

A/C System Self-Diagnosis Code Chart

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SELF-DIAGNOSTIC CODE CHART

AWIIA0171GB

Code No.

Reference page

02

EE changed by calibration

VTL-7, "Removal and Installation"

03

Battery voltage out of range

CHG-9, "Inspection Procedure"

12

Passenger air mix door open/short/out of limits

HAC-38, "Air Mix Door Motor (Passenger) Diagnosis Proce-
dure"

 

22

Driver air mix door open/short

HAC-34, "Air Mix Door Motor (Driver) Diagnosis Procedure"

30

In-vehicle sensor circuit out of range (low)

HAC-81, "In-Vehicle Sensor Diagnosis Procedure"

31

In-vehicle sensor circuit out of range (high)

38

Air mix door motor (rear) circuit failure

HAC-62, "Rear Air Control Component Function Check"

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Ambient sensor circuit short

HAC-78, "Ambient Sensor Diagnosis Procedure"

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Ambient sensor circuit open

44

Intake door motor open

HAC-44, "Intake Door Motor Diagnosis Procedure"

46

Intake door motor short

50

Optical sensor (Driver) circuit open or short

HAC-84, "Optical Sensor Diagnosis Procedure"

52

Optical sensor (Passenger) circuit open or short

56

Intake sensor circuit short

HAC-161, "Intake Sensor Diagnosis Procedure"

57

Intake sensor circuit open

80

CAN bus fault

LAN-14, "Trouble Diagnosis Flow Chart"

81

BCM message missing

82

Intake door motor circuit malfunction

HAC-44, "Intake Door Motor Diagnosis Procedure"

90

Stuck button

VTL-7, "Removal and Installation"

92

Mode door motor circuit malfunction

HAC-27, "Mode Door Motor (Front) Component Function 
Check"

2009 Pathfinder

HAC-26

< COMPONENT DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

MODE DOOR MOTOR

COMPONENT DIAGNOSIS

MODE DOOR MOTOR

System Description

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SYSTEM DESCRIPTION

Component Parts

Mode door control system components are:

• A/C auto amp.
• A/C and AV switch assembly
• Mode door motor (front)
• PBR (built into mode door motor)
• In-vehicle sensor
• Ambient sensor
• Optical sensor
• Intake sensor

System Operation

The mode door position (vent, B/L, foot, D/F, and defrost) is set by the A/C auto amp. by means of the mode
door motor (front). When a mode door position is selected on the A/C auto amp., voltage is applied to one cir-
cuit of the mode door motor (front) while ground is applied to the other circuit, causing the mode door motor
(front) to rotate. The direction of rotation is determined by which circuit has voltage applied to it, and which one
has ground applied to it. The A/C auto amp. monitors the mode door position by measuring the voltage signal
on the PBR circuit.
In AUTO mode the mode door position is set by the A/C auto amp. which determines the proper position
based on inputs from the in-vehicle sensor, ambient sensor, optical sensor, intake sensor, and the temperature
selected by the driver or passenger.

Mode Door Control Specification

COMPONENT DESCRIPTION

Mode Door Motor (Front)

AWIIA0092GB

AWIIA0093GB

2009 Pathfinder