Qashqai J11. Engine control system (R9M)

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.

Precaution for Procedure without Cowl Top Cover

INFOID:0000000010308912

When performing the procedure after removing cowl top cover, cover
the lower end of windshield with urethane, etc to prevent damage to
windshield.

Precautions for Removing Battery Terminal

INFOID:0000000010505549

• 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.

PIIB3706J

EC9-10

< PRECAUTION >

[R9M]

PRECAUTIONS

• 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.

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.

Precaution for Stop/Start System Service

INFOID:0000000010308914

CAUTION:

SEF289H

D4D engine

: 20 minutes

HRA2DDT

: 12 minutes

K9K engine

: 4 minutes

M9R engine

: 4 minutes

R9M engine

: 4 minutes

V9X engine

: 4 minutes

PRECAUTIONS

EC9-11

< PRECAUTION >

[R9M]

EC9

When performing an inspection and its related work with the engine at idle, always turn the stop/start
OFF switch ON or open the hood to release the stop/start system.

On Board Diagnostic (OBD) System of Engine

INFOID:0000000010308915

The ECM has an on board diagnostic system. It will light up the malfunction indicator (MI) to warn the driver of
a malfunction causing emission deterioration.

CAUTION:

• Be sure to turn the ignition switch OFF and disconnect the negative battery cable before any repair

or inspection work. The open/short circuit of related switches, sensors, solenoid valves, etc. will
cause the MI to light up.

• Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will

cause the MI to light up due to the open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

• Certain systems and components, especially those related to OBD, may use a new style slide-lock-

ing type harness connector. For description and how to disconnect, refer to

PG-5, "Harness Connec-

tor"

• Be sure to route and secure the harnesses properly after work. The interference of the harness with

a bracket, etc. may cause the MI to light up due to the short circuit.

• Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube

may cause the MI to light up due to the malfunction of the fuel injection system, etc.

• Be sure to erase the unnecessary malfunction information (repairs completed) from the ECM before

returning the vehicle to the customer.

EC9-12

< SYSTEM DESCRIPTION >

[R9M]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000010308916

ENGINE ROOM COMPARTMENT

Battery mounting bracket assembly

JSBIA4742ZZ

No.

Component parts

Function

IPDM E/R

IPDM E/R activates the internal control circuit to perform the
relay ON-OFF control according to the input signals from vari-
ous sensors and the request signals received from control
units via CAN communication.
Refer to

PCS-5, "Component Parts Location"

for detailed in-

stallation location.

Mass air flow (MAF) sensor (with intake air temperature sen-
sor 1)

•

EC9-16, "Mass Air Flow Sensor"

•

EC9-16, "Intake Air Temperature Sensor 1"

Fuel heater and water in fuel level sensor

EC9-18, "Fuel Heater With Water In Fuel Level Sensor"

Fuel pressure sensor

EC9-18, "Fuel Pressure Sensor"

COMPONENT PARTS

EC9-13

< SYSTEM DESCRIPTION >

[R9M]

EC9

ENGINE COMPARTMENT

Alternator

CHG-6, "Alternator"

Hood switch

EC9-23, "Hood Switch"

Reverse / neutral position switch (M/T models)

It detects that the transmission is in reverse and neutral.

ECM

EC9-16, "ECM"

Engine restart bypass relay

EC9-23, "Engine Restart Bypass Relay"

No.

Component parts

Function

JSBIA4743ZZ

No.

Component parts

Function

Fuel injector

EC9-18, "Fuel Injector"

Fuel temperature sensor

EC9-18, "Fuel Temperature Sensor"

Glow plug

EC9-21, "Glow Plug"

Engine coolant bypass control solenoid valve

EC9-22, "Engine Coolant Bypass Valve Control Solenoid
Valve"

Electric throttle control actuator

EC9-19, "Electric Throttle Control Actuator"

Intake valve runner control valve

EC9-19, "Intake Manifold Runner Control Valve"

High pressure EGR volume control valve

EC9-19, "High Pressure EGR Volume Control Valve"

Turbocharger boost sensor (with intake air temperature sen-
sor 2)

•

EC9-17, "Turbocharger Boost Sensor"

•

EC9-17, "Intake Air Temperature Sensor 2"

Fuel rail pressure sensor

EC9-18, "Fuel Rail Pressure Sensor"

Camshaft position sensor

EC9-16, "Camshaft Position Sensor"

Engine oil level sensor

—

Engine oil pressure sensor

—

Engine coolant temperature sensor

EC9-17, "Engine Coolant Temperature Sensor"

EC9-14

< SYSTEM DESCRIPTION >

[R9M]

COMPONENT PARTS

EXHAUST COMPARTMENT

BODY COMPARTMENT

Crankshaft position sensor

EC9-16, "Crankshaft Position Sensor"

Fuel flow actuator

EC9-17, "High Pressure Fuel Pump"

Turbocharger boost control solenoid valve

EC9-18, "Turbocharger Boost Control Solenoid Valve"

DPF (diesel particulate filter) differential pressure sensor

EC9-20, "DPF Differential Pressure Sensor"

Low pressure EGR volume control valve

EC9-19, "Low Pressure EGR Volume Control Valve"

Low pressure EGR temperature sensor

EC9-19, "Low Pressure EGR Temperature Sensor"

Exhaust gas temperature sensor 2

EC9-21, "Exhaust Gas Temperature Sensor 2"

Exhaust gas temperature sensor 1

EC9-20, "Exhaust Gas Temperature Sensor 1"

Turbocharger

EC9-28, "TURBOCHARGER BOOST CONTROL : System
Description"

A/F sensor 1

EC9-17, "Air Fuel Ratio (A/F) Sensor"

Exhaust gas pressure sensor

EC9-20, "Exhaust Gas Pressure Sensor"

No.

Component parts

Function

JSBIA4744ZZ

No.

Component parts

Function

DPF (diesel particulate filter)

EC9-20, "DPF (Diesel Particulate Filter)"

Exhaust electric throttle control actuator

EC9-19, "Exhaust Electric Throttle Control Actuator"

COMPONENT PARTS

EC9-15

< SYSTEM DESCRIPTION >

[R9M]

EC9

Behind luggage side finisher RH

Radiator assembly

Behind front fender protector LH

Instrument lower panel

Periphery of pedals

Behind of glove upper box assembly

JSBIA4745ZZ

No.

Component parts

Function

Refrigerant pressure sensor

EC9-22, "Refrigerant Pressure Sensor"

Active grille shutter

EXT-12, "ACTIVE GRILLE SHUTTER SYSTEM : Active grille
shutter"

Cooling fan resistor

EC9-21, "Cooling Fan Resistor"

ASCD steering switch

EC9-22, "ASCD Steering Switch"

Combination meter

MWI-9, "METER SYSTEM : System Description"

Fuel pump control module (FPCM)

EC9-18, "FPCM (Fuel Pump Control Module)"

Cooling fan resistor

EC9-21, "Cooling Fan Resistor"

Cooling fan motor

EC9-21, "Cooling Fan"

Thermoplunger control unit

EC9-21, "Thermoplunger Control Unit"

Thermoplunger unit

EC9-21, "Thermoplunger"

Glow control unit

EC9-21, "Glow Control Unit"

Relay box

—

Fuse block (J/B)

—

EC9-16

< SYSTEM DESCRIPTION >

[R9M]

COMPONENT PARTS

ECM

INFOID:0000000010308918

The ECM consists of a microcomputer and connectors for signal input and output and for power supply. The
ECM controls the engine.

Camshaft Position Sensor

INFOID:0000000010308919

The camshaft position (CMP) sensor senses the retraction with camshaft to identify a particular cylinder. The
camshaft position (CMP) sensor senses the piston position. When the crankshaft position (CKP) sensor sys-
tem becomes inoperative, the camshaft position (CMP) sensor provides various controls of engine parts
instead, utilizing timing of cylinder identification signals. The sensor consists of a permanent magnet and Hall
IC.

Crankshaft Position Sensor

INFOID:0000000010308920

Crankshaft position (CKP) sensor detects engine speed and crank-
shaft position. The size difference of gear tooth placed on signal
plate changes the gap between signal plate and sensor, and mag-
netic field change around the sensor induces sensor output voltage
change. ECM detects engine speed and crankshaft position based
on this voltage change.

Mass Air Flow Sensor

INFOID:0000000010308921

The mass air flow sensor (1) is installed in the passage of intake air
and measures the intake flow rate. The mass air flow sensor controls
the temperature of the hot wire to a certain amount. The heat gener-
ated by the hot wire is reduced as the intake air flows around it. The
greater air flow, the greater the heat loss.
Therefore, the electric current supplied to hot wire is changed to
maintain the temperature of the hot wire as air flow increases. The
ECM detects the air flow by means of this current change.

Intake Air Temperature Sensor 1

INFOID:0000000010308922

The intake air temperature (IAT) sensor 1 is built-into the mass air flow sensor. The sensor detects intake air
temperature and transmits a signal to the ECM.
The temperature sensing unit uses a thermistor which is sensitive to the change in temperature. Electrical
resistance of the thermistor decreases in response to the rise in temperature.

Stop/start OFF switch

EC9-24, "Stop/Start OFF Switch"

Clutch interlock switch (M/T models)

EC9-22, "Clutch Interlock Switch & Clutch Pedal Position
Switch"

Clutch pedal position switch (M/T models)

Accelerator pedal position sensor

EC9-22, "Accelerator Pedal Position Sensor"

Stop lamp switch

EC9-22, "Stop Lamp Switch"

Brake pedal position switch (CVT models)

EC9-22, "Stop Lamp Switch"

DC/DC converter

EC9-23, "DC/DC Converter"

No.

Component parts

Function

JSBIA0442ZZ

MBIB1523E