Nissan Leaf. Manual — part 988
PCS
SYSTEM
PCS-35
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
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SYSTEM
POWER DISTRIBUTION SYSTEM
POWER DISTRIBUTION SYSTEM : System Description
INFOID:0000000010120310
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
• PDS (POWER DISTRIBUTION SYSTEM) is the system that BCM controls with the operation of power
switch and performs the power distribution to each power circuit. This system is used instead of the mechan-
ical power supply changing mechanism with the operation of the conventional key cylinder.
• Power switch (push switch) can be operated when Intelligent Key is in the following condition.
- Intelligent Key is in the detection area of the interior antenna.
- Intelligent Key backside is contacted to power switch.
• Power switch (push switch) operation is input to BCM as a signal. BCM changes the power switch position
according to the status and operates the following relays to supply power to each power circuit.
- Ignition relay-1
- Ignition relay-2
- ACC relay
• The power switch position can be confirmed with the lighting of ACC/ON indicator in power switch (push
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 12V battery discharge.
• Power switch is in the ACC position
• All doors are closed
• Shift position is in the P position
Reset Condition of Battery Saver System
If any of the following conditions are met the battery saver system is released.
• Opening any door
• Operating with request switch on door lock
• Operating with Intelligent Key on door lock
• Press power switch (push switch), and power switch will change to ACC position from OFF position.
READY SET CONDITION TABLE BY POWER SWITCH OPERATION
SEC-12, "INTELLIGENT KEY SYSTEM/READY SET FUNCTION : System Description"
.
Fail-safe
INFOID:0000000010563595
FAIL-SAFE CONTROL BY DTC
BCM performs fail-safe control when any DTC are detected.
AWMIA1408GB
PCS-36
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
SYSTEM
*: “ECM” is indicated on CONSULT display, however this means VCM on this vehicle.
REAR WIPER MOTOR PROTECTION
BCM detects the rear wiper stopping position according to the rear wiper stop position signal.
When the rear wiper stop position signal does not change for more than 5 seconds while driving the rear
wiper, BCM stops power supply to protect the rear wiper motor.
Condition of cancellation
1. More than 1 minute is passed after the rear wiper stop.
2. Turn rear wiper switch OFF.
3. Operate the rear wiper switch or rear washer switch.
FAIL-SAFE CONTROL OF COMBINATION SWITCH READING FUNCTION CAUSED BY LOW
POWER SUPPLY VOLTAGE
If voltage of battery power supply lower, BCM maintains combination switch reading to the status when input
voltage is less than approximately 9 V.
NOTE:
When voltage of battery power supply is approximately 9 V or more, combination switch reading function
returns to normal operation.
Display contents of CONSULT
Fail-safe
Cancellation
B2192: ID DISCORD BCM-ECM*
Inhibit setting the vehi-
cle to READY
Erase DTC
B2193: CHAIN OF BCM-ECM*
Inhibit setting the vehi-
cle to READY
Erase DTC
B2195: ANTI-SCANNING
Inhibit setting the vehi-
cle to READY
Power switch ON
→ OFF
B2196: DONGLE NG
Inhibit setting the vehi-
cle to READY
Erase DTC
B2198: IMMOBI ANT NG
Inhibit setting the vehi-
cle to READY
Erase DTC
B261E: FUEL MIS CONFIG
Inhibit setting the vehi-
cle to READY
When the VCM status signal is normally received from VCM.
B26F1: IGN RELAY OFF STUCK
Inhibit setting the vehi-
cle to READY
When the following conditions are fulfilled
• Power switch ON signal (CAN: Transmitted from BCM): ON
• Power switch ON signal (CAN: Transmitted from IPDM E/R): ON
B26F2: IGN RELAY ON STUCK
Inhibit setting the vehi-
cle to READY
When the following conditions are fulfilled
• Power switch ON signal (CAN: Transmitted from BCM): OFF
• Power switch ON signal (CAN: Transmitted from IPDM E/R): OFF
B26F7: LF DRIVER COMMUNI-
CATION
Inhibit setting the vehi-
cle to READY
When inside key antennas function normally
U0415: VDC CAN CIRC2
Inhibit setting the vehi-
cle to READY
When vehicle speed signal (Meter) (CAN) is received normally
PCS
DIAGNOSIS SYSTEM (BCM)
PCS-37
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
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DIAGNOSIS SYSTEM (BCM)
COMMON ITEM
COMMON ITEM : CONSULT Function (BCM - COMMON ITEM)
INFOID:0000000010563598
APPLICATION ITEM
CONSULT performs the following functions via CAN communication with BCM.
SYSTEM APPLICATION
BCM can perform the following functions.
INTELLIGENT KEY
Direct Diagnostic Mode
Description
Ecu Identification
The BCM part number is displayed.
Self Diagnostic Result
The BCM self diagnostic results are displayed.
Data Monitor
The BCM input/output data is displayed in real time.
Active Test
The BCM activates outputs to test components.
Work support
The settings for BCM functions can be changed.
Configuration
• The vehicle specification can be read and saved.
• The vehicle specification can be written when replacing BCM.
CAN Diag Support Mntr
The result of transmit/receive diagnosis of CAN communication is displayed.
System
Sub System
Direct Diagnostic Mode
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N Diag
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Door lock
DOOR LOCK
×
×
×
×
Rear window defogger
REAR DEFOGGER
×
×
Warning chime
BUZZER
×
×
Interior room lamp timer
INT LAMP
×
×
×
Exterior lamp
HEADLAMP
×
×
×
Wiper and washer
WIPER
×
×
×
Turn signal and hazard warning lamps FLASHER
×
×
×
Air conditioner
AIR CONDITIONER
×
×
Intelligent Key system
INTELLIGENT KEY
×
×
×
×
Combination switch
COMB SW
×
BCM
BCM
×
×
×
×
×
Immobilizer
IMMU
×
×
×
×
Interior room lamp battery saver
BATTERY SAVER
×
×
×
Trunk open
TRUNK
×
Vehicle security system
THEFT ALM
×
×
×
RAP system
RETAINED PWR
×
Signal buffer system
SIGNAL BUFFER
×
TPMS
AIR PRESSURE MONITOR
×
×
×
×
PCS-38
< SYSTEM DESCRIPTION >
[POWER DISTRIBUTION SYSTEM]
DIAGNOSIS SYSTEM (BCM)
INTELLIGENT KEY : CONSULT Function (BCM - INTELLIGENT KEY)
INFOID:0000000010563599
SELF DIAGNOSTIC RESULT
DATA MONITOR
ACTIVE TEST
Monitor Item [Unit]
Main
Description
REQ SW -DR [On/Off]
×
Indicates condition of door request switch LH.
REQ SW -AS [On/Off]
×
Indicates condition of door request switch RH.
REQ SW -BD/TR [On/Off]
×
Indicates condition of back door request switch.
PUSH SW [On/Off]
Indicates condition of power switch.
BRAKE SW 1 [On/Off]
×
Indicates condition of brake switch.
BRAKE SW 2 [On/Off]
Indicates condition of brake switch.
DETE/CANCL SW [On/Off]
×
Indicates condition of P (park) position.
SFT PN/N SW [On/Off]
×
Indicates condition of P (park) or N (neutral) position.
UNLK SEN -DR [On/Off]
×
Indicates condition of door unlock sensor.
PUSH SW -IPDM [On/Off]
Indicates condition of power switch received from IPDM E/R on CAN commu-
nication line.
IGN RLY1 -F/B [On/Off]
Indicates condition of ignition relay 1 received from IPDM E/R on CAN commu-
nication line.
DETE SW -IPDM [On/Off]
Indicates condition of detent switch received from TCM on CAN communication
line.
SFT P -MET [On/Off]
Indicates condition of P (park) position from TCM on CAN communication line.
SFT N -MET [On/Off]
Indicates condition of N (neutral) position from IPDM E/R on CAN communica-
tion line.
ENGINE STATE [Stop/Start/Crank/Run]
×
Indicates condition of engine state from ECM on CAN communication line.
VEH SPEED 1 [mph/km/h]
×
Indicates condition of vehicle speed signal received from ABS on CAN commu-
nication line.
VEH SPEED 2 [mph/km/h]
×
Indicates condition of vehicle speed signal received from combination meter on
CAN communication line.
DOOR STAT -DR [LOCK/READY/UNLK]
×
Indicates condition of driver side door status.
DOOR STAT -AS [LOCK/READY/UNLK]
×
Indicates condition of passenger side door status.
ID OK FLAG [Set/Reset]
Indicates condition of Intelligent Key ID.
PRMT ENG STRT [Set/Reset]
Indicates condition of engine start possibility.
RKE OPE COUN1 [0-19]
×
When remote keyless entry receiver receives the signal transmitted while oper-
ating the Intelligent Key, the numerical value starts changing.
RKE-LOCK [On/Off]
Indicates condition of lock signal from Intelligent Key.
RKE-UNLOCK [On/Off]
Indicates condition of unlock signal from Intelligent Key.
RKE-PANIC [On/Off]
Indicates condition of panic signal from Intelligent Key.
RKE-MODE CHG [On/Off]
Indicates condition of mode change signal from Intelligent Key.
Test Item
Description
INSIDE BUZZER
This test is able to check combination meter warning chime operation [Off/Take Out/Knob/
Key].
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