Nissan Qashqai J11. Manual - part 464

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"