Nissan Altima HL32 Hybrid. Manual - part 499

AUTOMATIC AIR CONDITIONER SYSTEM

HAC-17

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

Component

Reference

Air mix door motor (driver side)

HAC-47, "Description"

Air mix door motor (passenger side)

HAC-50, "Description"

Ambient sensor

HAC-37, "Description"

Blower motor

HAC-81, "Description"

Electric compressor

HAC-88, "Description"

Intake door motor

HAC-56, "Description"

Intake sensor

HAC-40, "Description"

In-vehicle sensor

HAC-34, "Description"

Mode door motor

HAC-53, "Description"

Refrigerant pressure sensor

HAC-90, "Component Inspection"

Sunload sensor

HAC-43, "Description"

Controller (Auto amp.)

HAC-86, "Description"

Heater pump

HAC-84, "Description"

HAC-18

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

CAN COMMUNICATION SYSTEM

CAN COMMUNICATION SYSTEM

System Description

INFOID:0000000004215300

CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-

tiplex communication line with high data communication speed and excellent error detection ability. Many elec-

tronic control units are equipped onto a vehicle, and each control unit shares information and links with other

control units during operation (not independent). In CAN communication, control units are connected with 2

communication lines (CAN-H line, CAN-L line) allowing a high rate of information transmission with less wiring.

Each control unit transmits/receives data but selectively reads required data only. For details, refer to 

LAN-27,

"CAN System Specification Chart"

.

DIAGNOSIS SYSTEM (AUTO AMP.)

HAC-19

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

C

D

E

F

G

H

J

K

L

M

A

B

HAC

N

O

P

DIAGNOSIS SYSTEM (AUTO AMP.)

CONSULT-III Function

INFOID:0000000004215301

FUNCTION

WORK SUPPORT MODE

Work Item

*: Initial setting

Blower Fan Set

*: Initial setting

NOTE:

When low voltage battery cable is disconnected or battery voltage is below 10 V, trimmer operation is can-

celed. Work items becomes that of initial setting.

SELF-DIAG RESULTS MODE

Display Item List

Reading items of DTC. Refer to 

HAC-148, "DTC Index"

.

DATA MONITOR MODE

Monitor Item

Diagnostic test mode

Function

Work support

Change the setting for each system function.

Self-diagnostic results

Display the diagnosis result judged by auto amp.

Data monitor

The auto amp. Input/Output signals are displayed.

CAN diagnostic support 
monitor

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

Active test

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

ECU part number

Auto amp. part number can be read.

Work Item

Setting Item

Setting

TEMP SET CORRECT

—

The temperature setting correction compensates for difference in range of 

±3°C (±6°F)

REC MEMORY SET

MODE 1*

Manual REC status is 
memorized

When ignition switch is turned OFF to ON, inlet port can 
be set to AUTO or manual.

MODE 2

Auto control

FRE MEMORY SET

MODE 1*

Manual FRE status is 
memorized

MODE 2

Auto control

BLOWER FAN SET

MODE 1

Distribution ratio in FOOT mode can be set. Discharge air flow is shown in the table 
below.

MODE 2*

MODE 3

MODE 4

Work Item

Discharge air flow

Automatically controls the mode door

Manually controls the mode door

VENT

FOOT

DEF

VENT

FOOT

DEF

Front

Rear

Front

Rear

Front

Rear

Front

Rear

MODE 1

15%

16%

34%

15%

20%

15%

16%

34%

15%

20%

MODE 2* 

19%

20%

42%

19%

—

15%

16%

34%

15%

20%

MODE 3

19%

20%

42%

19%

—

19%

20%

42%

19%

—

MODE 4

15%

16%

34%

15%

20%

19%

20%

42%

19%

—

HAC-20

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (AUTO AMP.)

×: Applicable

Monitor item

Unit

Description

AMB TEMP SEN

°C/°F

Indicate value of the ambient temperature signal received from ambient sensor.

IN-VEH TEMP

°C/°F

Indicate value of the in-vehicle temperature signal received from in-vehicle sensor.

IN TEMP SEN

°C/°F

Indicate value of the evaporator temperature signal received from intake sensor.

SUNLOAD SEN

W/m

2

Indicate value of the sunload signal received from sunload sensor.

AMB SEN CAL

°C/°F

Indicate the ambient temperature computed from ambient sensor signal.

IN-VEH CAL

°C/°F

Indicate the in-vehicle temperature computed from in-vehicle sensor signal.

INT TEMP CAL

°C/°F

Indicate the evaporator temperature computed from intake sensor signal.

SUNL SEN CAL

W/m

2

Indicate the amount of sunload computed from sunload sensor signal.

COMP REQ SIG

On/Off

Indicate the status of the electric compressor ON request signal from auto amp. to HV ECU.

FAN REQ SIG

On/Off

Indicate the status of the blower fan request signal.

FAN DUTY

%

Indicate value of the blower motor signal received blower motor.

XM

°C/°F

DR SIDE TARGET TEMPERATURE

ENG COOL TEMP

°C/°F

Indicate value of the engine coolant temperature signal received from ECM via CAN com-
munication.

VEHICLE SPEED

km/h/MPH

Indicate value of the vehicle speed signal received from HV ECU via CAN communication.

COMP RPM

rpm

Indicate value of the electric compressor speed signal received from HV ECU via CAN com-
munication.

AC INV VOLT

W

AC INVERTER INPUT VOLTAGE SIGNAL

AC INV CRNT

A

AC INVERTER CURRENT DIRECTION

AC INV TEMP

°C/°F

AC INVERTER TEMPERATURE SENSOR SIGNAL (Alternate between motor housing tem-
perature and inverter temperature.)

AC INV VOLT

V

AC INVERTER VOLTAGE SENSOR SIGNAL

USE POWER

W

USEABLE POWER

PWR SUPP FAIL

—

MAIN POWER SUPPLY FAILURE

OUTPUT FAIL

—

OUTPUT FAILURE

LOAD FAIL

—

LOAD FAILURE

NETWORK FAIL

—

NETWORK FAILURE

START UP FAIL

—

START UP FAILURE

CONTROL FAIL

—

CONTROL FAILURE

STB SHORT

—

STB (electric compressor stand-by signal line) SHORT

STB STATUS

On/Off

STB (electric compressor stand-by signal line) STATUS

INV OVERHEAT

—

INVERTER OVERHEAT 

STB REQUEST

On/Off

STB (electric compressor stand-by signal line) ON/OFF REQUEST

HTR WTR PUMP

On/Off

Indicate the status of the heater pump ON request signal transmitted to HV ECU via CAN 
communication.

ENG ON REQ

On/Off

Indicate the status of the engine ON request signal transmitted to HV ECU via CAN commu-
nication.

NETWRK STAT

—

NETWORK STATUS SIGNAL

STB OPEN

—

STB (electric compressor stand-by signal line) OPEN DETECTION

STB STAT ANS

On/Off

STB (electric compressor stand-by signal line) STATUS ANSWER

A/C PD CUT

On/Off

A/C PD CUT FLAG

CLIM COOL REQ

On/Off

Indicate the status of the electric compressor ON request signal from auto amp. to HV ECU.

NE HEATER

rpm

Indicate value of the target engine speed signal transmitted to HV ECU via CAN communi-
cation.

HEATER NUP

On/Off

Indicate the status of the target engine speed up request signal to HV ECU via CAN com-
munication.