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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%

—

60%

40%

—

20%

55%

25%

15%

50%

35%

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]

HAC

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

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

Door lock

DOOR LOCK

Rear window defogger

REAR DEFOGGER

Warning chime

BUZZER

Interior room lamp timer

INT LAMP

Remote keyless entry system

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

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]

HAC

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]

HAC

INSPECTION FLOW

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

HAC-132, "Discharge

Air Flow"

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.

>> 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

HAC-165, "Wiring Diagram"

MODE DOOR MOTOR DIAGNOSTIC PROCEDURE

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.

>> Repair or replace harness as necessary.

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.

>> GO TO 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

VTL-7, "Removal and

Installation"

>> Repair or replace harness as necessary.

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.

>> Repair or replace harness as necessary.

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

VTL-7, "Removal and

Installation"

>> GO TO 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

VTL-28, "Removal

and Installation"

>> 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]

HAC

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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