Qashqai J11. Defogger — part 1

The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the “SRS AIR BAG” and
“SEAT BELT” of this Service Manual.

WARNING:

Always observe the following items for preventing accidental activation.
• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision that would result in air bag inflation, all maintenance must be performed by
an authorized NISSAN/INFINITI dealer.

• Improper maintenance, including incorrect removal and installation of the SRS, can lead to personal

injury caused by unintentional activation of the system. For removal of Spiral Cable and Air Bag
Module, see “SRS AIR BAG”.

• Never use electrical test equipment on any circuit related to the SRS unless instructed to in this Ser-

vice Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or harness
connectors.

PRECAUTIONS WHEN USING POWER TOOLS (AIR OR ELECTRIC) AND HAMMERS

WARNING:

Always observe the following items for preventing accidental activation.
• When working near the Air Bag Diagnosis Sensor Unit or other Air Bag System sensors with the

ignition ON or engine running, never use air or electric power tools or strike near the sensor(s) with
a hammer. Heavy vibration could activate the sensor(s) and deploy the air bag(s), possibly causing
serious injury.

• When using air or electric power tools or hammers, always switch the ignition OFF, disconnect the

battery, and wait at least 3 minutes before performing any service.

Precautions for Removing Battery Terminal

INFOID:0000000010506263

• With the adoption of Auto ACC function, ACC power is automatically supplied by operating the intelligent key

or remote keyless entry or by opening/closing the driver side door. In addition, ACC power is supplied even
after the ignition switch is turned to the OFF position, i.e. ACC power is supplied for a certain fixed time.

• When disconnecting the 12V battery terminal, turn off the ACC

power before disconnecting the 12V battery terminal, observing
“How to disconnect 12V battery terminal” described below.
NOTE:
Some ECUs operate for a certain fixed time even after ignition
switch is turned OFF and ignition power supply is stopped. If the
battery terminal is disconnected before ECU stops, accidental DTC
detection or ECU data damage may occur.

• For vehicles with the 2-batteries, be sure to connect the main bat-

tery and the sub battery before turning ON the ignition switch.
NOTE:
If the ignition switch is turned ON with any one of the terminals of
main battery and sub battery disconnected, then DTC may be detected.

• After installing the 12V battery, always check "Self Diagnosis Result" of all ECUs and erase DTC.

NOTE:
The removal of 12V battery may cause a DTC detection error.

HOW TO DISCONNECT 12V BATTERY TERMINAL

Disconnect 12V battery terminal according to Instruction 1 or Instruction 2 described below.
For vehicles parked by ignition switch OFF, refer to Instruction 2.

INSTRUCTION 1

Open the hood.

SEF289H

DEF-4

< PRECAUTION >

PRECAUTIONS

Turn key switch to the OFF position with the driver side door opened.

Get out of the vehicle and close the driver side door.

Wait at least 3 minutes. For vehicle with the engine listed below, remove the battery terminal after a lapse
of the specified time.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

INSTRUCTION 2 (FOR VEHICLES PARKED BY IGNITION SWITCH OFF)

Unlock the door with intelligent key or remote keyless entry.
NOTE:
At this moment, ACC power is supplied.

Open the driver side door.

Open the hood.

Close the driver side door.

Wait at least 3 minutes.

CAUTION:

While waiting, never operate the vehicle such as locking, opening, and closing doors. Violation of
this caution results in the activation of ACC power supply according to the Auto ACC function.

Remove 12V battery terminal.

CAUTION:

After installing 12V battery, always check self-diagnosis results of all ECUs and erase DTC.

D4D engine

: 20 minutes

HRA2DDT

: 12 minutes

K9K engine

: 4 minutes

M9R engine

: 4 minutes

R9M engine

: 4 minutes

V9X engine

: 4 minutes

COMPONENT PARTS

DEF-5

< SYSTEM DESCRIPTION >

DEF

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000010434106

JMLIA5215ZZ

No.

Component

Function

Door mirror defogger

Refer to

DEF-6, "Door Mirror Defogger"

Front window defogger relay

Front window defogger relay is controlled by A/C control and turn OFF

⇔

ON the power

supply to front window defogger.

BCM

• Receives rear window defogger switch signal.
• Performs the timer control of rear window defogger.
Refer to

BCS-7, "BODY CONTROL SYSTEM : Component Parts Location"

for detailed in-

stallation location.

A/C auto amp.

• A/C auto amp. receives rear window defogger switch signal from A/C control and trans-

mits it to BCM via CAN communication.

• A/C auto amp. receives rear window defogger feedback signal from BCM via CAN com-

munication and transmits it to A/C control.

Refer to

HAC-9, "AUTOMATIC AIR CONDITIONING SYSTEM : Component Parts Loca-

tion"

for detailed installation location.

A/C control
(For automatic air conditioning
models)

• Rear window defogger switch and front window defogger switch are installed.
• Turns the indicator lamp ON when detecting the operation of rear window defogger and

front window defogger.

• A/C control controls front window defogger relay.
Refer to

HAC-9, "AUTOMATIC AIR CONDITIONING SYSTEM : Component Parts Loca-

tion"

for detailed installation location.

A/C amp.
(Except for automatic air condi-
tioning models)

• Rear window defogger switch is installed.
• A/C amp. transmits rear window defogger switch signal to BCM via CAN communication.
• A/C amp. receives rear window defogger feedback signal from BCM via CAN communi-

cation.

• Turns the indicator lamp ON when detecting the operation of rear window defogger.
Refer to

HAC-141, "MANUAL AIR CONDITIONING SYSTEM : Component Parts Location"

(For manual A/C models) or

HAC-233, "MANUAL HEATER SYSTEM : Component Parts

Location"

(For manual heater models) for detailed installation location.

DEF-6

< SYSTEM DESCRIPTION >

COMPONENT PARTS

*: With front window defogger

Rear Window Defogger

INFOID:0000000010434107

Heats the heating wire with the power supply from the rear window
defogger relay to prevent the rear window from fogging up.

Door Mirror Defogger

INFOID:0000000010434108

Heats the heating wire with the power supply from the rear window
defogger relay to prevent the door mirror from fogging up.

Front Window Defogger

INFOID:0000000010434109

Heats the heating wire in heated area with the power supply from the
front window defogger relay to prevent the front window from fogging
up.

Rear window defogger

Refer to

DEF-6, "Rear Window Defogger"

Front window defogger*

Refer to

DEF-6, "Front Window Defogger"

No.

Component

Function

JMLIA2595GB

JMLIA2596GB

JMLIA5218GB

SYSTEM

DEF-7

< SYSTEM DESCRIPTION >

DEF

SYSTEM

System Description

INFOID:0000000010434110

SYSTEM DIAGRAM

Automatic Air Conditioning System

Except Automatic Air Conditioning System

REAR WINDOW DEFOGGER FUNCTION

• Turn rear window defogger switch ON when the ignition switch turns ON. Then integral switch (rear window

defogger switch) transmits rear window defogger switch signal to display control unit via communication line.
Display control unit transmits rear window defogger switch signal to BCM via CAN communication.

• BCM turns rear window defogger relay ON and transmits rear window defogger control signal to IPDM E/R

via CAN communication when rear window defogger switch signal is received.

• Rear window defogger and door mirror defogger are supplied with power and operate when rear window

defogger relay turns ON.

• IPDM E/R transmits rear window defogger control signal to display control unit via CAN communication.
• Display control unit transmit rear window defogger feedback signal to integral switch (rear window defogger

switch) via communication line, then rear window defogger indicator is illuminated.

REAR WINDOW DEFOGGER AND DOOR MIRROR DEFOGGER TIMER FUNCTION

• BCM turns rear window defogger relay ON for approximately 15 minutes when rear window defogger switch

turns ON. It makes rear window defogger, door mirror defogger.

• Timer is canceled after pressing rear window defogger switch again during timer operation. Then BCM turns

rear window defogger relay OFF. The same reaction also occurs during timer operation, if the ignition switch
is turned OFF.

FRONT WINDOW DEFOGGER FUNCTION

JMLIA5216GB

JMLIA5217GB

DEF-8

< SYSTEM DESCRIPTION >

SYSTEM

• Turns ON front window defogger switch (Front window defogger switch is on A/C control) while ignition

switch is ON, then front window defogger relay is controlled by A/C control to turn front window defogger
ON.

• Front window defogger turns OFF when any of the following condition is detected.
- Battery voltage is under 6 V (Front window defogger turns ON when battery voltage is 10 V or more).
- Electrical power cut freeze signal (permission) is not received from ECM.
- Vehicle power consumption is large.
• Front window defogger turns OFF when vehicle power consumption is large while front window defogger is

operating.

• Front window defogger turns OFF temporarily when rear window defogger is turned ON.
• Front window defogger turns ON again when rear window defogger timer is 4 minutes left. At this time when

vehicle power consumption is large, front window defogger relay LH and RH may turns ON alternately each
10 seconds.

• Front window defogger turns OFF when rear window defogger timer is expired

DIAGNOSIS SYSTEM (BCM)

DEF-9

< SYSTEM DESCRIPTION >

DEF

DIAGNOSIS SYSTEM (BCM)

COMMON ITEM

COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)

INFOID:0000000010434112

APPLICATION ITEM

CONSULT 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.

: Applicable item

NOTE:
*: This item is displayed, but not used.

FREEZE FRAME DATA (FFD)

The BCM records the following vehicle condition at the time a particular DTC is detected, and displays on
CONSULT.

Diagnosis mode

Function Description

Work Support

Changes the setting for each system function.

Self Diagnostic Result

Displays the diagnosis results judged by BCM.

CAN Diag Support Monitor

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

• Read and save the vehicle specification.
• Write the vehicle specification when replacing BCM.

System

Sub system selection item

Diagnosis mode

Work Support

Data Monitor

Active Test

Door lock

DOOR LOCK

Trunk lid open

TRUNK

Rear window defogger

REAR DEFOGGER

Warning chime

BUZZER

Interior room lamp timer

INT LAMP

Interior room lamp battery saver

BATTERY SAVER

Wiper and washer

WIPER

Turn signal and hazard warning lamps

FLASHER

IVIS - NATS

IMMU

Exterior lamp

HEAD LAMP

Combination switch

COMB SW

RAP

RETAINED PWR

—

AIR CONDITONER*

Signal buffer system

SIGNAL BUFFER

Vehicle security

THEFT ALM

TPMS

AIR PRESSURE MONITOR

• Intelligent Key system
• Engine start system

INTELLIGENT KEY

Body control system

BCM

DEF-10

< SYSTEM DESCRIPTION >

DIAGNOSIS SYSTEM (BCM)

REAR WINDOW DEFOGGER

REAR WINDOW DEFOGGER : CONSULT Function (BCM - REAR DEFOGGER)

INFOID:0000000010434113

WORK SUPPORT

: Factory setting

DATA MONITOR

CONSULT screen item

Indication/Unit

Description

Vehicle Speed

km/h

Vehicle speed of the moment a particular DTC is detected

Odo/Trip Meter

Total mileage (Odometer value) of the moment a particular DTC is detected

Vehicle Condition

SLEEP>LOCK

Power position status of
the moment a particular
DTC is detected

While turning BCM status from low power consumption mode to
normal mode (Power supply position is “LOCK”)

SLEEP>OFF

While turning BCM status from low power consumption mode to
normal mode (Power supply position is “OFF”.)

LOCK>ACC

While turning power supply position from “LOCK” to “ACC”

ACC>ON

While turning power supply position from “ACC” to “IGN”

RUN>ACC

While turning power supply position from “RUN” to “ACC” (Vehicle
is stopping and selector lever is except P position.)

CRANK>RUN

While turning power supply position from “CRANKING” to “RUN”
(From cranking up the engine to run it)

RUN>URGENT

While turning power supply position from “RUN“ to “ACC” (Emer-
gency stop operation)

ACC>OFF

While turning power supply position from “ACC” to “OFF”

OFF>LOCK

While turning power supply position from “OFF” to “LOCK”

OFF>ACC

While turning power supply position from “OFF” to “ACC”

ON>CRANK

While turning power supply position from “IGN” to “CRANKING”

OFF>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “OFF”.) to low power consumption mode

LOCK>SLEEP

While turning BCM status from normal mode (Power supply posi-
tion is “LOCK”.) to low power consumption mode

LOCK

Power supply position is “LOCK” (Ignition switch OFF with steer-
ing is locked.)

OFF

Power supply position is “OFF” (Ignition switch OFF with steering
is unlocked.)

ACC

Power supply position is “ACC” (Ignition switch ACC)

Power supply position is “IGN” (Ignition switch ON with engine
stopped)

ENGINE RUN

Power supply position is “RUN” (Ignition switch ON with engine
running)

CRANKING

Power supply position is “CRANKING” (At engine cranking)

IGN Counter

0 - 39

The number of times that ignition switch is turned ON after DTC is detected
• The number is 0 when a malfunction is detected now.
• The number increases like 1

→

3...38

→

39 after returning to the normal condition

whenever ignition switch OFF

→

ON.

• The number is fixed to 39 until the self-diagnosis results are erased if it is over 39.

Service item

Setting item

Description

SET R-DEF TIMER

MODE1

NOTE:
Do not use this function.

MODE2

MODE3

DIAGNOSIS SYSTEM (BCM)

DEF-11

< SYSTEM DESCRIPTION >

DEF

NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.

ACTIVE TEST

Monitor Item

Description

PUSH SW

Indicates [On/Off] condition of push switch

REAR DEF SW

Displays “Press (On)/other (Off)” status determined with the rear window defogger switch

Test Item

Description

REAR DEFOGGER

Rear window defogger operates when “On” on CONSULT screen is touched