Nissan Titan A60. Manual - part 583

AUTOMATIC AIR CONDITIONER SYSTEM

HAC-15

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

C

D

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F

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HAC

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O

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MAGNET CLUTCH CONTROL

When A/C switch or DEF switch is pressed, front air control inputs compressor ON signal to BCM.

BCM sends compressor ON signal to ECM and front air control, via CAN communication line.

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.

Discharge Air Flow

INFOID:0000000006164678

WJIA2197E

Mode door position

Air outlet/distribution

Vent

Foot

Defroster

95%

5%

—

60%

40%

—

—

70%

30%

—

60%

40%

—

10%

90%

WJIA0540E

HAC-16

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

AUTOMATIC AIR CONDITIONER SYSTEM

Switches And Their Control Function

INFOID:0000000006164679

AWIIA0572GB

AWIIA0359GB

DIAGNOSIS SYSTEM (HVAC)

HAC-17

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

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HAC

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DIAGNOSIS SYSTEM (HVAC)

CONSULT-III Function (HVAC)

INFOID:0000000006164680

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 DIAGNOSTIC RESULT 

Displays Front air control self-diagnosis results.

DATA MONITOR

Displays Front air control input/output data in real time.

CAN DIAG SUPPORT MNTR

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

ECU IDENTIFICATION

Front air control part number can be read.

DTC

Description

Reference page

B2573

Battery voltage out of range

CHG-4, "Work Flow"

B2578

In-vehicle sensor circuit out of range (low)

HAC-59, "In-Vehicle Sensor Diagnosis Procedure"

B2579

In-vehicle sensor circuit out of range (high)

B257B

Ambient sensor circuit short

HAC-57, "Ambient Sensor Component Inspection"

B257C

Ambient sensor circuit open

B257F

Optical sensor (Driver) circuit open or short

HAC-62, "Optical Sensor Diagnosis Procedure"

.

B2580

Optical sensor (Passenger) circuit open or short

B2581

Intake sensor circuit short

HAC-65, "Intake Sensor Component Inspection"

B2582

Intake sensor circuit open

B2587

Stuck button

VTL-8, "Removal and Installation"

U1000

CAN bus fault

LAN-14, "Trouble Diagnosis Flow Chart"

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"

Displays ambient sensor signal.

EVAP TEMP SEN

"

°C"

Displays intake sensor signal.

INCAR TMP SEN

"

°C"

Displays in-vehicle sensor 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.

DEF FDBCK

"V"

Displays defroster door motor feedback signal.

RECIRC

"ON/OFF"

Displays recirculation switch signal.

DEFROST

"ON/OFF"

Displays defroster switch signal.

AUTO

"ON/OFF"

Displays AUTO switch signal.

A/C

"ON/OFF"

Displays A/C switch signal.

HAC-18

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (HVAC)

L TEMP UP

"ON/OFF"

Displays driver side temperature control dial (temp increase) signal.

L TEMP DOWN

"ON/OFF"

Displays driver side temperature control dial (temp decrease) signal.

R TEMP UP

"ON/OFF"

Displays passenger temperature control dial (temp increase) signal.

R TEMP DOWN

"ON/OFF"

Displays passenger temperature control dial (temp decrease) signal.

RR DEFOG

"ON/OFF"

Displays rear defroster request signal.

FAN UP

"ON/OFF"

Displays blower motor (blower speed increase) signal.

FAN DOWN

"ON/OFF"

Displays blower motor (blower speed decrease) signal.

MODE SELECT

"DTNT"

Displays selected mode position.

DUAL MODE 

"ON/OFF"

Displays dual mode status.

MODE D STATUS 

"V"

Displays mode d status signal.

Monitor item

Value

Contents