Nissan Pathfinder (2010 year). Manual — part 457
HAC-132
< FUNCTION DIAGNOSIS >
[MANUAL AIR CONDITIONER]
MANUAL AIR CONDITIONER SYSTEM
Discharge Air Flow
INFOID:0000000005256985
Switches And Their Control Function
INFOID:0000000005256986
SWITCHES AND THEIR CONTROL FUNCTION
Mode door position
Air outlet/distribution
Vent
Foot
Defroster
95%
5%
—
60%
40%
—
20%
55%
25%
15%
50%
35%
7%
15%
78%
Airflow always present at driver and passenger side demisters
WJIA1296E
AWIIA0271GB
2010 Pathfinder
MANUAL AIR CONDITIONER SYSTEM
HAC-133
< FUNCTION DIAGNOSIS >
[MANUAL AIR CONDITIONER]
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WJIA1497E
2010 Pathfinder
HAC-134
< FUNCTION DIAGNOSIS >
[MANUAL AIR CONDITIONER]
DIAGNOSIS SYSTEM (BCM)
DIAGNOSIS SYSTEM (BCM)
CONSULT-III Function (BCM - COMMON ITEM)
INFOID:0000000005483706
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
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
THEFT ALM
×
×
×
Panic alarm
PANIC ALARM
×
2010 Pathfinder
DIAGNOSIS SYSTEM (BCM)
HAC-135
< FUNCTION DIAGNOSIS >
[MANUAL AIR CONDITIONER]
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CONSULT-III Function (BCM - AIR CONDITIONER)
INFOID:0000000005483707
DATA MONITOR
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
2010 Pathfinder
HAC-136
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
MODE DOOR MOTOR
COMPONENT DIAGNOSIS
MODE DOOR MOTOR
System Description
INFOID:0000000005256989
SYSTEM DESCRIPTION
Component Parts
Mode door control system components are:
• Front air control
• Mode door motor
• PBR (built into mode door motor)
• Intake sensor
System Operation
The mode door position (vent, B/L, foot, D/F, and defrost) is set by the front air control by means of the mode
door motor. When a mode door position is selected on the front air control, voltage is applied to one circuit of
the mode door motor while ground is applied to the other circuit, causing the mode door motor 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 front air control monitors the mode door position by measuring the voltage signal on the PBR circuit.
COMPONENT DESCRIPTION
Mode Door Motor
The mode door motor is attached to the heater and cooling unit
assembly. It rotates so that air is discharged from the outlet as indi-
cated by the front air control. Motor rotation is conveyed to a link
which activates the mode door.
Mode Door Motor (Front) Component Function Check
INFOID:0000000005256990
SYMPTOM:
• Air outlet does not change.
• Mode door motor does not operate normally.
WJIA1314E
WJIA1484E
2010 Pathfinder
MODE DOOR MOTOR
HAC-137
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
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INSPECTION FLOW
1.
CONFIRM SYMPTOM BY PERFORMING OPERATIONAL CHECK - DISCHARGE AIR
1. Turn blower control dial to 4.
2. Turn the mode dial and check all positions.
3. Confirm that discharge air comes out according to the air distribution table. Refer to
.
NOTE:
Confirm that the compressor clutch is engaged (visual inspection) and intake door position is at FRESH
when DEF (
) or D/F (
) is selected.
Can a symptom be duplicated?
YES
>> Inspection End.
NO
>> Go to diagnosis procedure. Refer to
HAC-137, "Mode Door Motor (Front) Diagnosis Procedure"
.
Mode Door Motor (Front) Diagnosis Procedure
INFOID:0000000005256991
Regarding Wiring Diagram information, refer to
MODE DOOR MOTOR DIAGNOSTIC PROCEDURE
1.
CHECK POWER SUPPLY AND GROUND CIRCUITS FOR MODE DOOR MOTOR
1. Turn ignition switch OFF.
2. Disconnect front air control connector and mode door motor
connector.
3. Check continuity between front air control harness connector
M52 terminal 1 and mode door motor harness connector M144
terminal 1 and between front air control harness connector M52
terminal 14 and mode door motor harness connector M144 ter-
minal 6.
Is inspection result normal?
YES
>> GO TO 2.
NO
>> Repair or replace harness as necessary.
2.
CHECK PBR REFERENCE SIGNAL VOLTAGE
1. Reconnect the front air control connector.
2. Turn ignition switch ON.
3. Check voltage between mode door motor harness connector
M144 terminal 3 and ground.
Is inspection result normal?
YES
>> GO TO 4.
NO
>> GO TO 3.
3.
CHECK PBR REFERENCE VOLTAGE CIRCUIT BETWEEN MODE DOOR AND FRONT AIR CONTROL
1 - 1
: Continuity should exist.
14 - 6
: Continuity should exist.
WJIA1241E
3 - Ground
: Approx. 5V
WJIA1242E
2010 Pathfinder
HAC-138
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
MODE DOOR MOTOR
1. Turn ignition switch OFF.
2. Disconnect the front air control connector.
3. Check continuity between mode door motor harness connector
M144 terminal 3 and front air control harness connector M52 ter-
minal 23.
Is inspection result normal?
YES
>> Replace front air control. Refer to
NO
>> Repair or replace harness as necessary.
4.
CHECK PBR GROUND REFERENCE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the front air control connector.
3. Check continuity between mode door motor harness connector
M144 terminal 2 and front air control harness connector M52 ter-
minal 26.
Is inspection result normal?
YES
>> GO TO 5.
NO
>> Repair or replace harness as necessary.
5.
CHECK PBR FEEDBACK SIGNAL
1. Reconnect the front air control connector and mode door motor
connector.
2. Turn ignition switch ON.
3. Check voltage between front air control harness connector M52
terminal 21 and ground.
4. Press mode switch through all modes.
Is inspection result normal?
YES
>> Replace front air control. Refer to
NO
>> GO TO 6.
6.
CHECK PBR FEEDBACK CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the mode door motor connector and front air control
harness connector.
3. Check continuity between mode door motor harness connector
M144 terminal 4 and front air control harness connector M52 ter-
minal 21.
Is inspection result normal?
YES
>> Replace mode door motor. Refer to
.
NO
>> Repair or replace harness as necessary.
3 - 23
: Continuity should exist.
WJIA1085E
2 - 26
: Continuity should exist.
WJIA1087E
21 - Ground
: Approx. 0 - 5V
WJIA1088E
4 - 21
: Continuity should exist.
WJIA1089E
2010 Pathfinder
AIR MIX DOOR MOTOR
HAC-139
< COMPONENT DIAGNOSIS >
[MANUAL AIR CONDITIONER]
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AIR MIX DOOR MOTOR
System Description
INFOID:0000000005256992
SYSTEM DESCRIPTION
Component Parts
Air mix door control system components are:
• Front air control
• Air mix door motor
• PBR (built into air mix door motor)
• Intake sensor
System Operation
The front air control receives data from the temperature selected by the driver. The front air control then
applies a voltage to one circuit of the air mix door motor, while ground is applied to the other circuit, causing
the air mix door motor 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 front air control monitors the air mix door positions by measur-
ing the voltage signal on the PBR circuits of each door.
Air Mix Door Control Specification
COMPONENT DESCRIPTION
Air Mix Door Motors
WJIA1316E
WJIA0435E
2010 Pathfinder
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