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Nissan Note E12. Manual - part 476

PCS

IPDM E/R

PCS-31

< REMOVAL AND INSTALLATION >

[IPDM E/R]

3. Release pawls, then lift IPDM E/R (1) as shown and position

aside.

:Pawl

4. Disconnect the harness connectors from the IPDM E/R (1) and

remove.

INSTALLATION

Installation is in the reverse order of removal.

ALMIA0655ZZ

PCS-32

< PRECAUTION >

[POWER DISTRIBUTION SYSTEM]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"

INFOID:0000000009607420

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 SR and SB section of

this Service Manual.

WARNING:

• To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death in

the event of a collision which 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 the SR section.

• Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this

Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or har-

ness connectors.

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

WARNING:

• When working near the Airbag Diagnosis Sensor Unit or other Airbag System sensors with the Igni-

tion ON or engine running, DO NOT 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 three minutes before performing any service.

PCS

COMPONENT PARTS

PCS-33

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

SYSTEM DESCRIPTION

COMPONENT PARTS

Component Parts Location

INFOID:0000000009567585

AWMIA1438ZZ

No.

Component

Description

Accessory relay-2

• Accessory relay-2 is controlled by BCM.
• Accessory relay-2 supplies accessory power supply or ignition switch ACC signal to each ECU

when ignition switch is turned to ACC or ON.

• BCM compares status of accessory relay-2 control signal, and ignition switch position judged

by BCM.

BCM

• BCM controls power distribution system.
• BCM judges ignition switch position by push-button ignition switch (push switch) and vehicle

condition.

• BCM checks ignition switch position internally.

Push-button ignition
switch

Push-button ignition switch (push switch) is pressed, and transmits status signal to BCM and
IPDM E/R.

IPDM E/R

• IPDM E/R detects push-button ignition switch (push switch) status, and transmits push-button

ignition switch status signal (CAN) to BCM.

• IPDM E/R receives ignition relay-1 (IPDM E/R) control signal and ignition switch ON signal

(CAN) from BCM, and controls ignition relay-1 (built into IPDM E/R)

Blower relay (in fuse
block)

• Blower relay is controlled by BCM.
• Blower relay supplies ignition switch ON power supply or ignition switch ON signal to air con-

ditioning system when ignition switch is turned ON.

• BCM compares status of blower relay control signal and ignition switch position judged by

BCM.

Accessory relay-1 (in
fuse block)

• Accessory relay-1 is controlled by BCM.
• Accessory relay-1 supplies accessory power supply or ignition switch ACC signal to each ECU

when ignition switch is turned ACC or ON.

• BCM compares status of accessory relay-1 control signal, and ignition switch position judged

by BCM.

Ignition relay-2 (in fuse
block)

• Ignition relay-2 is controlled by BCM.
• Ignition relay-2 supplies ignition switch ON power supply or ignition switch ON signal to each

ECU and system when ignition switch is turned ON.

• BCM compares status of ignition relay-2 control signal and ignition switch position judged by

BCM.

• BCM monitors ignition relay-2 operating status by ignition relay feedback signal.

PCS-34

< SYSTEM DESCRIPTION >

[POWER DISTRIBUTION SYSTEM]

SYSTEM

SYSTEM

POWER DISTRIBUTION SYSTEM
POWER DISTRIBUTION SYSTEM : System Description

INFOID:0000000009567588

SYSTEM DIAGRAM

SYSTEM DESCRIPTION

• PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the operation of the push-

button ignition switch and performs the power distribution to each power circuit. This system is used instead

of the mechanical power supply changing mechanism with the operation of the conventional key cylinder.

• The push-button ignition switch can be operated when Intelligent Key is in the following condition.

- Intelligent Key is in the detection area of the inside key antenna.

- Intelligent Key backside is contacted to push-button ignition switch.

• The push-button ignition switch operation is input to BCM as a signal. BCM changes the power supply posi-

tion according to the status and operates the following relays to supply power to each power circuit.

- Ignition relay-1

- Ignition relay-2

- Accessory relay-1

- Accessory relay-2

- Blower motor relay

NOTE:

The engine switch operation changes due to the conditions of brake pedal, selector lever and vehicle speed.

• The power supply position can be confirmed with the lighting of the indicators in the push-button ignition

switch.

BATTERY SAVER SYSTEM

When all the following conditions are met for 30 minutes, the battery saver system will cut off the power supply

to prevent battery discharge.

• The ignition switch is in the ACC or ON position

• All doors are closed

• Selector lever is in the P (park) position

Reset Condition of Battery Saver System

In order to prevent the battery from discharging, the battery saver system will cut off the power supply when all

doors are closed, the selector lever is in P (park) position and the ignition switch is left in the ACC or ON posi-

tion for 30 minutes. If any of the following conditions are met the battery saver system is released and the

steering will change automatically to lock position from OFF position.

• Opening any door

• Operating door request switch on door handle

• Operating Intelligent Key

POWER SUPPLY POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-

ALMIA0602GB

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