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)
INFOID:0000000003935879
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
< FUNCTION DIAGNOSIS >
[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
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
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
"
°
C/
°
F"
Displays ambient sensor signal.
EVAP TEMP SEN
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°
C/
°
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)
INFOID:0000000004364429
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
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
< FUNCTION DIAGNOSIS >
[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
INFOID:0000000003935884
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
INFOID:0000000003935885
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
< FUNCTION DIAGNOSIS >
[AUTOMATIC AIR CONDITIONER]
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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
INFOID:0000000003935886
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
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"
40
Ambient sensor circuit short
HAC-78, "Ambient Sensor Diagnosis Procedure"
41
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
INFOID:0000000003935887
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
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