Nissan Qashqai J11. Manual — part 1950
PCS-72
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
COMPONENT PARTS
SYSTEM DESCRIPTION
COMPONENT PARTS
Component Parts Location
INFOID:0000000010434039
JMMIA1776ZZ
No.
Component
Description
CVT shift selector (deten-
tion switch) (CVT models)
CVT shift selector (detention switch) detects shift lever status, transmits detention switch signal to
BCM.
Refer to
TM-430, "CVT CONTROL SYSTEM : Component Parts Location"
for detailed installation
location.
Push-button ignition
switch
Refer to
PCS-73, "Push-button Ignition Switch"
Stop lamp switch
Stop lamp switch detects that brake pedal is depressed, and transmits the signal to BCM.
Refer to
BRC-8, "Component Parts Location"
TCM
Transmits shif position signal to BCM via CAN communication line.
Refer to
PCS
COMPONENT PARTS
PCS-73
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
Push-button Ignition Switch
INFOID:0000000010434040
Push-button ignition switch is pressed, and transmits the status sig-
nal to BCM and IPDM E/R.
IPDM E/R
IPDM E/R detects push-button ignition switch (push switch) status, and transmits push-button igni-
tion switch status signal (CAN) to BCM.
Refer to
PCS-5, "Component Parts Location"
for detailed installation location.
BCM
• BCM controls power distribution system.
• BCM judges ignition switch position by push-button ignition switch (push switch) and vehicle con-
dition
• BCM checks the ignition switch position internally.
Refer to
BCS-7, "BODY CONTROL SYSTEM : Component Parts Location"
location.
Key switch
Key switch detects that ignition key is inserted into the ignition key cylinder, and then transmits the
signal to BCM.
Door request switch
Door request switch detects door lock/unlock operation and transmits door request switch signal to
BCM
Door switch
Detects door open/close condition.
No.
Component
Description
JMMIA1374ZZ
PCS-74
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
SYSTEM
SYSTEM
POWER DISTRIBUTION SYSTEM
POWER DISTRIBUTION SYSTEM : System Description
INFOID:0000000010434041
SYSTEM DIADRAM
SYSTEM DESCRIPTION
• POWER DISTRIBUTION SYSTEM is the system that BCM controls with the operation of push-button igni-
tion 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.
• 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.
• Push-button ignition switch operation is input to BCM as a signal. BCM changes the ignition switch position
according to the status and operates the following relays to supply power to each power circuit.
- Ignition relay (IPDM E/R)
- Ignition relay [fuse block (J/B)]
- Accessory relay
- Blower relay
• The ignition switch position can be confirmed with the lighting of the ACC/ON indicator lamp in push-button
ignition switch.
IGNITION BATTERY SAVER SYSTEM
When all the following conditions are met for 10 minutes, the battery saver system will cut off the power supply
(ignition switch position ACC/ON
→
OFF) to prevent battery discharge.
• Ignition switch is in the ACC/ON position
• Turn signal lamp is not in operation
• Selector lever is in the P position (A/T models)
NOTE:
For one minute after thirty minutes have passed or three minutes after twenty-seven minutes are passed, the
following display is indicated on information display in combination meter and sounds buzzer in combination
meter.
Reset Condition of Ignition Battery Saver System
If any of the following conditions are met the battery saver system is released.
• Ignition switch is not in the ACC/ON position.
JMMIA1781GB
Combination meter
Time
Information display
Buzzer
Power turned off to save the battery
Pipi-Pipi
(two seconds)
For one minute after thirty minutes have passed
three minutes after twenty-seven minutes are passed
PCS
SYSTEM
PCS-75
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
C
D
E
F
G
H
I
J
K
L
B
A
O
P
N
• Turn signal lamp is operation.
• Selector lever is not in the P position.
NOTE:
The ignition battery saver system can be temporarily disabled, without using CONSULT, to prevent it from
functioning when performing trouble diagnosis. Refer to
.
IGNITION SWITCH POSITION CHANGE TABLE BY PUSH-BUTTON IGNITION SWITCH OPERA-
TION
PCS-75, "AUTO ACC FUNCTION : System Description"
AUTO ACC FUNCTION
AUTO ACC FUNCTION : System Description
INFOID:0000000010507066
SYSTEM DIAGRAM
MODELS WITH INTELLIGENT KEY SYSTEM
MODELS WITHOUT INTELLIGENT KEY SYSTEM
DESCRIPTION
In conventional vehicles, power is supplied to the accessories of the vehicle after the ignition switch is turned
to the ACC position.
The AUTO ACC function is a function that bypasses the ignition switch ACC position and automatically distrib-
utes the accessory power supply to each switch and unit by door unlock operation, etc. using the Intelligent
Key (models with Intelligent Key) or the remote controller key (models without Intelligent Key).
JMMIA1782GB
JMMIA1783GB
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