Nissan Qashqai (2007-2010). Manual - part 918

HAC-32

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (AUTO AMP.)

DATA MONITOR

Display Item List (ECM)
With Gasoline Engine 

With Diesel Engine

Display Item List (BCM)

System part

Check item, diagnosis mode

Description

ECM

Data monitor

Displays ECM input data in real time.

BCM

Data monitor

Displays BCM input data in real time.

Monitor Item

Condition

Value/Status

AC PRESS SEN

• Engine is running
• Warm-up condition
• Both A/C switch and blower fan motor switch: ON (Compressor 

operates.)

1.0 - 4.0 V

Monitor Item

Condition

Value/Status

RFRGERNT PRSS

• Engine is running
• Warm-up condition
• Air conditioner switch: OFF
• Shift lever: Neutral position
• No  load

Approximately 5.7 bar

Monitor Item

Condition

Value/Status

IGN ON SW

Ignition switch OFF 

→

 ON

Off 

→

 On

FAN ON SIG

Ignition switch ON

Blower fan motor switch ON

On

Blower fan motor switch OFF

Off

AIR COND SW

Ignition switch ON

Compressor ON

On

Compressor OFF

Off

DIAGNOSIS SYSTEM (BCM)

HAC-33

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT-III Function (BCM - COMMON ITEM)

INFOID:0000000001096692

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.

AIR CONDITIONER

AIR CONDITIONER : CONSULT-III Function (BCM - AUTO AIR CONDITIONER)

INFOID:0000000001096693

DATA MONITOR

Display Item List

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-61, "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

×

×

×

Trunk open

TRUNK

×

Vehicle security system

THEFT ALM

×

×

×

Signal buffer system

SIGNAL BUFFER

×

×

PTC heater system

PTC HEATER

×

×

HAC-34

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

DIAGNOSIS SYSTEM (BCM)

PTC HEATER

PTC HEATER : CONSULT-III Function (BCM - PTC HEATER)

INFOID:0000000001096694

DATA MONITOR

Display Item List

ACTIVE TEST

Test item

Monitor Item [Unit]

Contents

IGN SW

[On/Off]

Display [ignition switch position (On)/(Off), ACC position (Off)] status as judged form 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.

Monitor Item

[Unit]

Description

ELEC PWR CUT

[OFF/FREEZ/INHBT]

Indicate [OFF/FREEZ/INHBT] condition of the PTC heater states.

FAN ON SIG

[On/Off]

Displays [FAN (ON)/FAN (OFF)] status as judged from blower fan motor signal.

ENGINE STATUS

[STOP/STAL/RUN/CRA]

Indicate [STOP/STALL/RUN/CRA] condition of the engine states.

ENG COOLNT T

[

°

C]

The engine coolant temperature (determined by the signal voltage of the engine coolant tem-
perature sensor) is displayed.

BATTERY VOLT

[V]

The power supply voltage of BCM is displayed.

ENGINE RPM

[rpm]

Indicates the engine speed computed from the signal of the crankshaft position sensor.

OUTSIDE TEMP

[

°

C]

The outside air temperature (determined by the signal voltage of the OAT sensor) is displayed.

Test Item

Operation

Description

PTC HEATER

OFF

PTC 1
PTC 2
PTC 3

This test is able to check PTC heater operation.

MODE DOOR CONTROL SYSTEM

HAC-35

< FUNCTION DIAGNOSIS >

[AUTOMATIC AIR CONDITIONER]

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MODE DOOR CONTROL SYSTEM

Description

INFOID:0000000000954638

SYSTEM DESCRIPTION

Component Parts

Mode door control system components are:

• Auto amp.
• Mode door motor (LCU)
• A/C LAN system (PBR built-in mode door motor, high-level ventilator door motor, air mix door motor and

intake door motor)

• In-vehicle sensor
• OAT sensor
• Sunload sensor
• Intake sensor

System Operation

• The auto amp. receives data from each of the sensors.
• The auto amp. sends air mix door, mode door, high-level ventilator door and intake door opening angle data

to the air mix door motor LCUs, mode door motor LCU, high-level ventilator door motor LCU and intake door
motor LCU.

• The air mix door motors, mode door motor, high-level ventilator door motor and intake door motor read their

respective signals according to the address signal. Opening angle indication signals received from the auto
amp. and each of the motor position sensors are compared by the LCUs in each door motor with the existing
decision and opening angles.

• Subsequently, HOT/COLD, DEF/VENT, OPEN/SHUT and FRE/REC operation is selected. The new selec-

tion data are returned to the auto amp.

JPIIA0164GB