Nissan Versa Note. Instruction — part 613
PCS-62
< PRECAUTION >
[POWER DISTRIBUTION SYSTEM]
PRECAUTIONS
PRECAUTION
PRECAUTIONS
Precaution for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT
PRE-TENSIONER"
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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 Instruction.
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 Instruction. 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-63
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
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SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
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AWMIA1438ZZ
No.
Component
Description
1.
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.
2.
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.
3.
Push-button ignition
switch
Push-button ignition switch (push switch) is pressed, and transmits status signal to BCM and
IPDM E/R.
4.
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)
5.
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.
6.
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.
7.
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-64
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
SYSTEM
SYSTEM
POWER DISTRIBUTION SYSTEM
POWER DISTRIBUTION SYSTEM : System Description
INFOID:0000000009579000
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.
IGNITION BATTERY SAVER SYSTEM
When all the following conditions are met for 30 minutes, the ignition 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 Ignition Battery Saver System
In order to prevent the battery from discharging, the ignition 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 position for 30 minutes.
• Opening any door
• Operating door request switch on door handle
• Operating Intelligent Key
POWER SUPPLY POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION
AWMIA3150GB
PCS
SYSTEM
PCS-65
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
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The power supply position changing operation can be performed with the following operations.
NOTE:
• When an Intelligent Key is within the detection area of inside key antenna and when Intelligent Key backside
is contacted to push-button ignition switch, it is equivalent to the operations below.
• When starting the engine, the BCM monitors under the engine start conditions:
- Brake pedal operating condition
- Selector lever position
- Vehicle speed
Vehicle speed: less than 4 km/h (2.5 MPH)
Vehicle speed: 4 km/h (2.5 MPH) or more
Emergency stop operation
• Press and hold the push-button ignition switch for 2 seconds or more.
• Press the push-button ignition switch 3 times or more within 1.5 seconds.
Fail-safe
INFOID:0000000009726133
BCM performs fail-safe control when the following DTCs are detected.
Power supply position
Engine start/stop condition
Push-button
ignition switch
operation frequency
With CVT
With M/T
Selector lever position
Brake pedal condition
Clutch pedal condition
OFF
→ ACC
—
Released
Released
1
OFF
→ ACC → ON
—
Released
Released
2
OFF
→ ACC → ON →
OFF
—
Released
Released
3
OFF
→ START
ACC
→ START
ON
→ START
P (Park) or N (Neutral)
Depressed
Depressed
1
Engine is running
→ OFF
—
—
—
1
Power supply position
Engine start/stop condition
Push-button
ignition switch
operation frequency
With CVT
With M/T
Selector lever position
Brake pedal condition
Clutch pedal condition
Engine is running
→
ACC
—
—
—
Emergency stop
operation
Engine stall return opera-
tion while driving
N (Neutral)
Released
Depressed
1
CONSULT Display
Fail-safe
Cancellation
B2192: ID DISCORD BCM-ECM
Inhibit engine cranking
Erase DTC
B2193: CHAIN OF BCM-ECM
Inhibit engine cranking
Erase DTC
B2195: ANTI SCANNING
Inhibit engine cranking
Ignition switch ON
→ OFF
B2196: DONGLE NG
Inhibit engine cranking
Erase DTC
B2198: NATS ANTENNA AMP
Inhibit engine cranking
Erase DTC
B2557: VEHICLE SPEED
—
When the following CAN signal status (vehicle speed signal) becomes
consistent
• Vehicle speed signal (ABS)
• Vehicle speed signal (Meter)
B2601: SHIFT P SIGNAL
—
500 ms after the following signal reception status becomes consistent
• Park position switch signal
• P range signal (CAN)
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