Nissan GT-R (2007-2014 year). BODY CONTROL SYSTEM. Service Manual

• In this case, cancel operation must be performed.
NOTE:
Do not cancel transit mode during storage of the vehicle. Always cancel transit mode before delivery of the
vehicle to customer.

Work Procedure

INFOID:0000000009160227

TRANSIT MODE CANCEL OPERATION

Turn ignition switch OFF.

Turn and hold front wiper switch to HI, and then operate turn signal switch to RH or LH.

>> GO TO 2.

TRANSIT MODE CANCEL CHECK

Turn front wiper switch and turn signal switch OFF.

Turn ignition switch ON.

Check that turn signal indicator on combination meter does not turn ON.

>> WORK END

Revision: 2012 November

2014 GT-R

BCS

BODY CONTROL SYSTEM

BCS-3

< SYSTEM DESCRIPTION >

SYSTEM DESCRIPTION

BODY CONTROL SYSTEM

System Description

INFOID:0000000009160228

OUTLINE

• BCM (Body Control Module) controls the various electrical components. It inputs the information required to

the control from CAN communication and the signal received from each switch and sensor.

• BCM has combination switch reading function for reading the operation status of combination switches (light,

turn signal, wiper and washer) in addition to a function for controlling the operation of various electrical com-
ponents. It also has the signal transmission function as the passed point of signal and the power saving con-
trol function that reduces the power consumption with the ignition switch OFF.

• BCM is equipped with the diagnosis function that performs the diagnosis with CONSULT and various set-

tings.

BCM control function list

System

Refer to

Combination switch reading system

BCS-5, "System Diagram"

Signal buffer system

BCS-9, "System Diagram"

Power consumption control system

BCS-10, "System Diagram"

Turn signal and hazard warning lamp system

EXL-9, "System Diagram"

Headlamp system

EXL-3, "System Diagram"

Auto light system

EXL-5, "System Diagram"

Parking, license plate and tail lamps system

EXL-11, "System Diagram"

Exterior lamp battery saver system

EXL-15, "System Diagram"

Daytime running light system

EXL-7, "System Diagram"

Interior room lamp control system

INL-2, "System Diagram"

Step lamp system

Trunk room lamp system

Interior room lamp battery saver system

INL-6, "System Diagram"

Illumination control system

INL-9, "System Diagram"

Front wiper and washer system

WW-2, "System Diagram"

Warning chime system

WCS-3, "WARNING CHIME SYSTEM : System Diagram"

Door lock system

DLK-6, "System Diagram"

Trunk open system

DLK-40, "System Diagram"

Nissan Vehicle Immobilizer System (NVIS) - NATS

SEC-9, "System Diagram"

Vehicle security system

SEC-12, "System Diagram"

Panic alarm

DLK-24, "REMOTE KEYLESS ENTRY FUNCTION : System De-
scription"

Rear window defogger system

DEF-3, "System Diagram"

Intelligent Key system/engine start system

Door lock function

DLK-10, "INTELLIGENT KEY SYSTEM : System Diagram"

Trunk open function

Remote keyless entry
function

Key reminder function

Warning function

Engine start function

Revision: 2012 November

2014 GT-R

BCS-4

< SYSTEM DESCRIPTION >

BODY CONTROL SYSTEM

Component Parts Location

INFOID:0000000009160229

Power window system

PWC-7, "System Diagram"

Retained accessory power (RAP) system

PWC-7, "System Description"

System

Refer to

BCM

Dash side lower (passenger side)

JPMIA1142ZZ

Revision: 2012 November

2014 GT-R

BCS

COMBINATION SWITCH READING SYSTEM

BCS-5

< SYSTEM DESCRIPTION >

COMBINATION SWITCH READING SYSTEM

System Diagram

INFOID:0000000009160230

NOTE:
*: TAIL LAMP switch links lighting switch 1ST position.

System Description

INFOID:0000000009160231

OUTLINE

• BCM reads the status of the combination switch (light, turn signal, wiper and washer) and recognizes the

status of each switch.

• BCM is a combination of 5 output terminals (OUTPUT 1 - 5) and 5 input terminals (INPUT 1 - 5). It reads a

maximum of 20 switch status.

COMBINATION SWITCH MATRIX

Combination switch circuit

NOTE:
*: TAIL LAMP switch links lighting switch 1ST position.

Combination switch INPUT-OUTPUT system list

JMMIA1045GB

JMMIA1046GB

System

OUTPUT 1

OUTPUT 2

OUTPUT 3

OUTPUT 4

OUTPUT 5

INPUT 1

—

FR WASHER

FR WIPER LOW

TURN LH

TURN RH

INPUT 2

FR WIPER HI

—

FR WIPER INT

PASSING

HEADLAMP 1

Revision: 2012 November

2014 GT-R

BCS-6

< SYSTEM DESCRIPTION >

COMBINATION SWITCH READING SYSTEM

NOTE:

Headlamp has a dual system switch.

COMBINATION SWITCH READING FUNCTION

Description

• BCM reads the status of the combination switch at 10 ms interval normally.

NOTE:
BCM reads the status of the combination switch at 60 ms interval when BCM is controlled at low power con-
sumption mode.

• BCM operates as follows and judges the status of the combination switch.
- INPUT 1 - 5 outputs the voltage waveforms of 5 systems simultaneously.
- It operates the transistor on OUTPUT side in the following order: OUTPUT 5

→

- The voltage waveform of INPUT corresponding to the formed circuit changes according to the operation of

the transistor on OUTPUT side if any (1 or more) switches are ON.

- It reads this change of the voltage as the status signal of the combination switch.

Operation Example

In the following operation example, the combination of the status signals of the combination switch is replaced
as follows: INPUT 1 - 5 to “1 - 5” and OUTPUT 1 - 5 to “A - E”.

INPUT 3

INT VOLUME 1

—

HEADLAMP 2

HI BEAM

INPUT 4

—

INT VOLUME 3

AUTO LIGHT

—

TAIL LAMP

INPUT 5

INT VOLUME 2

—

System

OUTPUT 1

OUTPUT 2

OUTPUT 3

OUTPUT 4

OUTPUT 5

JPMIA0067GB

JPMIA0068GB

Revision: 2012 November

2014 GT-R

BCS

COMBINATION SWITCH READING SYSTEM

BCS-7

< SYSTEM DESCRIPTION >

Example 1: When a switch (TURN RH switch) is turned ON

• The circuit between INPUT 1 and OUTPUT 5 is formed when the TURN RH switch is turned ON.

• BCM detects the combination switch status signal “1E” when the signal of OUTPUT 5 is input to INPUT 1.
• BCM judges that the TURN RH switch is ON when the signal “1E” is detected.

Example 2: When some switches (turn RH switch, front wiper LO switch) are turned ON

• The circuits between INPUT 1 and OUTPUT 5 and between INPUT 1 and OUTPUT 3 are formed when the

TURN RH switch and FR WIPER LOW switch are turned ON.

• BCM detects the combination switch status signal “1CE” when the signals of OUTPUT 3 and OUTPUT 5 are

input to INPUT 1.

• BCM judges that the TURN RH switch and FR WIPER LOW switch are ON when the signal “1CE” is

detected.

WIPER INTERMITTENT DIAL POSITION

BCM judges the wiper intermittent dial 1 - 7 by the status of INT VOLUME 1, 2 and 3 switches.

JMMIA1047GB

JMMIA1048GB

Wiper intermittent dial position

Switch status

INT VOLUME 1

INT VOLUME 2

INT VOLUME 3

OFF

Revision: 2012 November

2014 GT-R

BCS-8

< SYSTEM DESCRIPTION >

COMBINATION SWITCH READING SYSTEM

NOTE:

For details of wiper intermittent dial position, refer to

WW-2, "System Description"

OFF

Wiper intermittent dial position

Switch status

INT VOLUME 1

INT VOLUME 2

INT VOLUME 3

Revision: 2012 November

2014 GT-R

BCS

SIGNAL BUFFER SYSTEM

BCS-9

< SYSTEM DESCRIPTION >

SIGNAL BUFFER SYSTEM

System Diagram

INFOID:0000000009160232

System Description

INFOID:0000000009160233

OUTLINE

BCM has the signal transmission function that outputs/transmits each input/received signal to each unit.

Signal transmission function list

JPMIA1141GB

Signal name

Input

Output

Description

Ignition switch ON signal

Push-button ignition switch
(push switch)

IPDM E/R (CAN)

Inputs the push-button ignition
switch (push switch) signal and
transmits the ignition switch sta-
tus judged with BCM via CAN
communication.

Door switch signal

Any door switch

• Combination meter (CAN)
• IPDM E/R (CAN)

Inputs the door switch signal
and transmits it via CAN com-
munication.

Trunk switch signal

Trunk room lamp switch

Combination meter (CAN)

Inputs the trunk room lamp
switch signal and transmits the
trunk switch signal via CAN
communication.

Low tire pressure warning lamp
signal

Low tire pressure warning con-
trol unit (CAN)

Combination meter (CAN)

Transmits the received low tire
pressure warning lamp signal
via CAN communication.

Run-flat tire warning display sig-
nal

Low tire pressure warning con-
trol unit (CAN)

Combination meter (CAN)

Transmits the received run flat
tire warning display signal via
CAN communication.

Buzzer request signal

Low tire pressure warning con-
trol unit (CAN)

Combination meter (CAN)

Transmits the received buzzer
request signal via CAN commu-
nication.

Revision: 2012 November

2014 GT-R

BCS-10

< SYSTEM DESCRIPTION >

POWER CONSUMPTION CONTROL SYSTEM

POWER CONSUMPTION CONTROL SYSTEM

System Diagram

INFOID:0000000009160234

System Description

INFOID:0000000009160235

OUTLINE

• BCM incorporates a power saving control function that reduces the power consumption according to the

vehicle status.

• BCM switches the status (control mode) by itself with the power saving control function. It performs the sleep

request to each unit (IPDM E/R and combination meter) that operates with the ignition switch OFF.

Normal mode (wake-up)

- CAN communication is normally performed with other units
- Each control with BCM is operating properly

CAN communication sleep mode (CAN sleep)

- CAN transmission is stopped
- Control with BCM only is operating

Low power consumption mode (BCM sleep)

- Low power consumption control is active
- CAN transmission is stopped

LOW POWER CONSUMPTION CONTROL WITH BCM

BCM reduces the power consumption with the following operation in the low power consumption mode.
• The reading interval of the each switches changes from 10 ms interval to 60 ms interval.

Sleep mode activation

• BCM receives the sleep-ready signal (ready) from IPDM E/R and combination meter via CAN communica-

tion.

• BCM transmits the sleep wake up signal (sleep) to each unit when all of the CAN sleep conditions are ful-

filled.

• Each unit stops the transmission of CAN communication with the sleep wake up signal. BCM is in CAN com-

munication sleep mode.

• BCM is in the low power consumption mode and perform the low power consumption control when all of the

BCM sleep conditions are fulfilled with CAN sleep condition.

JSMIA0050GB

Revision: 2012 November

2014 GT-R

BCS

POWER CONSUMPTION CONTROL SYSTEM

BCS-11

< SYSTEM DESCRIPTION >

Sleep condition

Wake-up operation

• BCM changes from the low power consumption mode to the CAN communication sleep mode when the any

of the BCM wake-up conditions is fulfilled. Only the control with BCM is activated.

• BCM transmits the sleep wake up signal (wake up) to each unit when any of the CAN wake-up conditions is

fulfilled. It changes from the low power consumption mode or the CAN communication sleep mode to the
normal mode.

• Each unit starts the transmission of CAN communication with the sleep wake up signal. In addition, the com-

bination meter transmits the wake up signal to BCM via CAN communication to report the CAN communica-
tion start.

Wake-up condition

CAN sleep condition

BCM sleep condition

• Receiving the sleep-ready signal (ready) from all units
• Ignition switch: OFF
• Vehicle security system and panic alarm: Not operation
• Warning chime: Not operation
• Intelligent Key system buzzer: Not operation
• Trunk room lamp switch status: No change
• Stop lamp switch: OFF
• Key slot (card switch) status: No change
• Turn signal indicator lamp: Not operation
• Exterior lamp: OFF
• Door lock status: No change
• CONSULT communication status: Not communication
• Meter display signal: Non-transmission
• Door switch status: No change
• Rear window defogger: OFF

• Interior room lamp battery saver: Time out
• RAP system: OFF
• Push-button ignition switch illumination: OFF
• Nissan Vehicle Immobilizer System (NVIS) - NATS: Not opera-

tion

• Remote keyless entry receiver communication status: No com-

munication

• LOCK indicator lamp: OFF
• ACC indicator lamp: OFF
• ON indicator lamp: OFF

BCM wake-up condition

CAN wake-up condition

• Trunk lid opener switch: OFF

→

• Remote keyless entry receiver: Receiving
• Door lock and unlock switch:

NEUTRAL

→

LOCK, NEUTRAL

→

UNLOCK

• Receiving the sleep-ready signal (Not-ready) from any units
• Key slot (key switch): OFF

→

ON, ON

→

OFF

• Push-button ignition switch (push switch): OFF

→

• Hazard switch: OFF

→

• PASSING switch: OFF

→

ON, ON

→

OFF

• TAIL LAMP switch: OFF

→

• Driver door switch: OFF

→

ON, ON

→

OFF

• Passenger door switch: OFF

→

ON, ON

→

OFF

• Trunk room lamp switch: OFF

→

ON, ON

→

OFF

• Driver door request switch: OFF

→

• Passenger door request switch: OFF

→

• Trunk lid request switch: OFF

→

• Stop lamp switch signal: ON

Revision: 2012 November

2014 GT-R

BCS-12

< SYSTEM DESCRIPTION >

POWER CONSUMPTION CONTROL SYSTEM

Component Parts Location

INFOID:0000000009160236

Combination meter

BCM

IPDM E/R

Dash side lower (passenger side)

Engine room dash panel (RH)

JPMIA1144ZZ

Revision: 2012 November

2014 GT-R

BCS

POWER SUPPLY AND GROUND CIRCUIT

BCS-13

< DTC/CIRCUIT DIAGNOSIS >

DTC/CIRCUIT DIAGNOSIS

POWER SUPPLY AND GROUND CIRCUIT

Diagnosis Procedure

INFOID:0000000009160266

CHECK FUSE AND FUSIBLE LINK

Check that the following fuse and fusible link are not blown.

Is the fuse fusing?

YES

>> Replace the blown fuse or fusible link after repairing the affected circuit if a fuse or fusible link is

blown.

>> GO TO 2.

CHECK POWER SUPPLY CIRCUIT

Turn ignition switch OFF.

Disconnect BCM connectors.

Check voltage between BCM harness connector and ground.

Is the measurement value normal?

YES

>> GO TO 3.

>> Repair harness or connector.

CHECK GROUND CIRCUIT

Check continuity between BCM harness connector and ground.

Does continuity exist?

YES

>> INSPECTION END

>> Repair harness or connector.

Signal name

Fuse and fusible link No.

Battery power supply

Terminals

Voltage

(Approx.)

(+)

(

−

)

BCM

Ground

Connector

Terminal

M118

Battery voltage

M119

BCM

Ground

Continuity

Connector

Terminal

M119

Existed

Revision: 2012 November

2014 GT-R

BCS-14

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

ECU DIAGNOSIS INFORMATION

BCM (BODY CONTROL MODULE)

Wiring Diagram - BCM -

INFOID:0000000009160270

For connector terminal arrangements, harness layouts, and alphabets in a

(option abbreviation; if not

described in wiring diagram), refer to

GI-12, "Connector Information"

JRMWC6657GB

Revision: 2012 November

2014 GT-R

BCS

BCM (BODY CONTROL MODULE)

BCS-15

< ECU DIAGNOSIS INFORMATION >

JRMWC6658GB

Revision: 2012 November

2014 GT-R

BCS-16

< ECU DIAGNOSIS INFORMATION >

BCM (BODY CONTROL MODULE)

JRMWC6659GB

Revision: 2012 November

2014 GT-R

Content .. 1 2 ..

///////////////////////////////////////

Nissan GT-R (2007-2014 year). BODY CONTROL SYSTEM. Service Manual - part 1