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Nissan Rogue. Manual - part 750

HAC-22

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

DIAGNOSIS SYSTEM (A/C AUTO AMP.)

DIAGNOSIS SYSTEM (A/C AUTO AMP.)

Description

INFOID:0000000011276575

Air conditioning system performs self-diagnosis, operation check, function diagnosis, and various settings

using diagnosis function of each control unit.

CONSULT Function (HVAC)

INFOID:0000000011276576

CONSULT can display each diagnosis item using the diagnosis test modes as shown.

CONSULT application items

SELF DIAGNOSTIC RESULT

Refer to

HAC-33, "DTC Index"

Display Item List

ECU

Diagnostic item

(CONSULT)

A/C auto amp.

HVAC

Self Diagnostic Result

Data Monitor

Active Test

Work support

ECM

ENGINE

Self Diagnostic Result

Data Monitor

IPDM E/R

Self Diagnostic Result

Data Monitor

Diagnosis mode

Description

Self Diagnostic Result

Displays the diagnosis results judged by A/C auto amp.

Data Monitor

Displays A/C auto amp. input/output data in real time.

Work support

Changes the setting for each system function.

Active Test

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

ECU Identification

Displays the A/C auto amp. number.

DTC

Items

(CONSULT screen terms)

Diagnostic item is detected when...

Possible cause

U1000

CAN COMM CIRCUIT

When A/C auto amp. is not transmitting
or receiving CAN communication signal
for 2 or more seconds.

CAN communication system

U1010

CONTROL UNIT (CAN)

When detecting error during the initial
diagnosis of CAN controller of A/C auto
amp.

A/C auto amp.

B24A0

A/C AUTO AMP.

A/C auto amp. EEPROM system is mal-
functioning.

A/C auto amp.

B24A1

A/C AUTO AMP. POWER SUPPLY

Detected power supply voltage is out of
range.

• A/C auto amp.
• Harness and connector

(Power supply circuit is open, or
there is a short in the circuit)

B24A6

IN-CAR SENSOR

Detected temperature at in-vehicle sen-
sor is out of range.

• In-vehicle sensor
• A/C auto amp.
• Harness and connector

(In-vehicle sensor circuit is open,
or there is a short in the circuit)

DIAGNOSIS SYSTEM (A/C AUTO AMP.)

HAC-23

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

HAC

*: Perform self-diagnosis under sunshine. When performing indoors, aim a light (more than 60 W) at sunload sensor, otherwise self-diag-
nosis reports an error even though the sunload sensor is functioning normally.

DATA MONITOR

Display item list

B24A4

EVAP TEMP SEN

Detected temperature at intake sensor
is out of range.

• Intake sensor
• A/C auto amp.
• Harness and connector

(Intake sensor circuit is open, or
there is a short in the circuit)

B24A9

SUNLOAD SEN

Detected calorie at sunload sensor
1395 w/m

(1200 kcal/m

·h).

• Sunload sensor
• A/C auto amp.
• Harness and connector

(Sunload sensor circuit is open,
or there is a short in the circuit)

B24BB

DR AIRMIX ACTR

Short or open circuit of air mix door mo-
tor drive signal.

• Air mix door motor LH
• A/C auto amp.
• Harness and connector

(Air mix door motor is open or
shorted)

B24BD

AS AIRMIX ACTR

Short or open circuit of air mix door mo-
tor drive signal.

• Air mix door motor RH
• A/C auto amp.
• Harness and connector

(Air mix door motor is open or
shorted)

B24B4

A/C CONTROL

Short or open circuit of A/C switch com-
munication.

• A/C switch
• A/C auto amp.
• Harness and connector

(A/C switch is open or shorted)

B24B6

B24B7

INTAKE ACTR

Short or open circuit of intake door mo-
tor drive signal.

• Intake door motor
• A/C auto amp.
• Harness and connector

(Intake door motor is open or
shorted)

B24B9

MODE DOOR ACTR

Short or open circuit of mode door mo-
tor drive signal.

• Mode door motor
• A/C auto amp.
• Harness and connector

(Mode door motor is open or
shorted)

B24C3

BLOWER MOTOR FEEDBACK

Short or open circuit.

• Front blower motor
• Front blower motor relay
• Variable blower control
• A/C auto amp.
• Harness and connector

B24C6

BLOWER MOTOR CONTROL

B24D4

A/C CONTROL COMMUNICATION

Short or open circuit.

• A/C switch
• A/C auto amp.
• Harness and connector

(A/C switch is open or shorted)

DTC

Items

(CONSULT screen terms)

Diagnostic item is detected when...

Possible cause

Monitor item [Unit]

Description

AMB TEMP SEN

[

°C]

Ambient sensor value converted from ambient sensor signal received from ambient
sensor

IN-VEH TEMP

[

°]

In-vehicle sensor value converted from in-vehicle sensor signal received from in-vehi-
cle sensor

INT TEMP SEN

[

°C] Intake sensor value converted from intake sensor signal received from intake sensor

SUNLOAD SEN

[w/m

]

Sunload sensor value converted from sunload sensor signal received from sunload
sensor

AMB SEN CAL

[

°] Ambient sensor value calculated by A/C auto amp.

HAC-24

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

DIAGNOSIS SYSTEM (A/C AUTO AMP.)

WORK SUPPORT

NOTE:
When the battery cable is disconnected from the negative terminal or when the battery voltage becomes 10V or less, the setting of
WORK SUPPORT may be cancelled.

ACTIVE TEST

HVAC TEST

IN-VEH CAL

[

°C] In-vehicle sensor value calculated by A/C auto amp.

INT TEMP CAL

[

°C] Intake sensor value calculated by A/C auto amp.

SUNL SEN CAL

[w/m

] Sunload sensor value calculated by A/C auto amp.

COMP REQ SIG

[On/Off] Displays A/C switch ON/OFF status transmitted to other units via CAN communication

COMP ECV DUTY

[%] Duty ratio of ECV (electrical control valve) judged by A/C auto amp.

FAN REQ SIG

[On/Off]

Displays blower switch ON/OFF status transmitted to other units via CAN communica-
tion

FAN DUTY

[%] Duty ratio of blower motor judged by A/C auto amp.

Target discharge air temperature judged by A/C auto amp. according to the tempera-
ture setting and the value from each sensor

ENG COOL TEMP

[

°C] Water temperature signal value received from ECM via CAN communication

VEHICLE SPEED

[km/h

(mph)]

Vehicle speed signal value received from meter via CAN communication

Monitor item [Unit]

Description

Work item

Description

Reference

TEMP SET CORRECT
(Setting of difference between tem-
perature setting and control tempera-
ture)

If the temperature felt by the customer is different than the airflow
temperature controlled by the temperature setting, the auto ampli-
fier control temperature can be adjusted to compensate for the
temperature setting.

HAC-50, "Temperature
Setting Trimmer"

REC MEMORY SET
(REC memory function setting)

• If the ignition switch is turned to the OFF position while the REC

switch is set to ON (recirculation), “With” or “Without” of the REC
switch ON (recirculation) condition can be selected.

• If “With” was set, the REC switch will be ON (recirculation) when

turning the ignition switch to the ON position again.

• If “Without” was set, the air inlets will be controlled automatically

when turning the ignition switch to the ON position again.

HAC-51, "Inlet Port
Memory Function (REC)"

FRE MEMORY SET
(FRE memory function setting)

• If the ignition switch is turned to the OFF position while the FRE

switch is set to ON (fresh air intake), “With” or “Without” of the
FRE switch ON (fresh air intake) condition can be selected.

• If “With” was set, the FRE switch will be ON (fresh air intake)

when turning the ignition switch to the ON position again.

• If “Without” was set, the air inlets will be controlled automatically

when turning the ignition switch to the ON position again.

HAC-50, "Inlet Port
Memory Function (FRE)"

BLOW SET

Setting change of foot position setting trimmer can be performed.

HAC-50, "Foot Position
Setting Trimmer"

Door Motor Starting Position Reset

Starting position reset of air mix door motor and mode door motor
can be performed.

HAC-52, "Work Proce-
dure"

TARGET EVAPORATOR TEMP UP-
PER LIMIT SETTING

Set the target evaporator upper temperature limit.

HAC-51, "Target Evapo-
rator Temp Upper Limit"

Test item

Description

HVAC TEST

The operation check of A/C system can be performed by selecting the mode. Refer to the fol-
lowing table for the conditions of each mode.

ALL SEG

All switch indicator and display indication are turned ON.

DIAGNOSIS SYSTEM (A/C AUTO AMP.)

HAC-25

< SYSTEM DESCRIPTION >

[AUTOMATIC AIR CONDITIONING]

HAC

NOTE:
Perform the inspection of each output device after starting the engine, because the A/C compressor has been operating.

Test item

MODE 1

MODE 2

MODE 3

MODE 4

MODE 5

MODE 6

MODE 7

Mode door position

VENT

B/L

D/F1

D/F2

DEF

Intake door position

REC

20%FRE

FRE

Air mix door position
(driver & passenger
side)

FULL COLD

FULL HOT

Blower motor (Applied
voltage)

35%

60%

90%

35%

A/C compressor (Mag-
net clutch)

OFF

ECV duty

80%

40%

90%

Content .. 748 749 750 751 ..