Nissan GT-R. Manual - part 230

PCS

PCS-1

ELECTRICAL & POWER CONTROL

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SECTION 

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CONTENTS

POWER CONTROL SYSTEM

IPDM E/R

SYSTEM DESCRIPTION  ..............................

3

RELAY CONTROL SYSTEM  ..............................

3

System Diagram ........................................................

3

System Description  ...................................................

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Component Parts Location ........................................

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SIGNAL BUFFER SYSTEM  ................................

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System Diagram ........................................................

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System Description  ...................................................

6

POWER CONSUMPTION CONTROL SYS-
TEM .....................................................................

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System Diagram ........................................................

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System Description  ...................................................

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Component Parts Location ........................................

8

DIAGNOSIS SYSTEM (IPDM E/R) ......................

9

Diagnosis Description  ...............................................

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DTC/CIRCUIT DIAGNOSIS  .........................

11

POWER SUPPLY AND GROUND CIRCUIT ......

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Diagnosis Procedure ...............................................

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ECU DIAGNOSIS INFORMATION ..............

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IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM)  .................

12

Wiring Diagram - IPDM E/R -  ..................................

13

PRECAUTION ..............................................

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PRECAUTIONS ..................................................

16

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

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Precaution for Procedure without Cowl Top Cover 

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16

Precaution for Battery Service  ................................

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REMOVAL AND INSTALLATION ...............

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IPDM E/R (INTELLIGENT POWER DISTRI-
BUTION MODULE ENGINE ROOM)  ................

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Exploded View .........................................................

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Removal and Installation  .........................................

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POWER DISTRIBUTION SYSTEM

SYSTEM DESCRIPTION  .............................

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POWER DISTRIBUTION SYSTEM  ...................

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System Description ..................................................

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Component Parts Location  ......................................

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DTC/CIRCUIT DIAGNOSIS  .........................

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POWER SUPPLY AND GROUND CIRCUIT  ....

22

BCM ...........................................................................

22

BCM : Diagnosis Procedure  ....................................

22

PUSH-BUTTON IGNITION SWITCH  ................

23

Description ...............................................................

23

Diagnosis Procedure  ...............................................

23

Component Inspection .............................................

24

PUSH-BUTTON IGNITION SWITCH POSI-
TION INDICATOR  .............................................

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Description ...............................................................

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Diagnosis Procedure  ...............................................

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POWER DISTRIBUTION SYSTEM  ...................

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Wiring Diagram - PDS (POWER DISTRIBUTION 
SYSTEM) -  ..............................................................

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PRECAUTION ..............................................

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PRECAUTIONS .................................................

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

29

Precaution for Procedure without Cowl Top Cover ....

29

Precautions Necessary for Steering Wheel Rota-
tion After Battery Disconnection  ..............................

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PCS-2

Precaution for Battery Service  ................................

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REMOVAL AND INSTALLATION ...............

31

PUSH-BUTTON IGNITION SWITCH  .................

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Removal and Installation .........................................

31

PCS

RELAY CONTROL SYSTEM

PCS-3

< SYSTEM DESCRIPTION >

[IPDM E/R]

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SYSTEM DESCRIPTION

RELAY CONTROL SYSTEM

System Diagram

INFOID:0000000009163841

*: With daytime running light system

System Description

INFOID:0000000009163842

IPDM E/R activates the internal control circuit to perform the relay ON-OFF control according to the input sig-
nals from various sensors and the request signals received from control units via CAN communication.

CAUTION:

IPDM E/R integrated relays cannot be removed.

NNMIB0004GB

PCS-4

< SYSTEM DESCRIPTION >

[IPDM E/R]

RELAY CONTROL SYSTEM

NOTE:

BCM controls the starter relay.

Component Parts Location

INFOID:0000000009163843

Control relay

Input/output

Transmit unit

Control part

Reference 

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• Headlamp low relay
• Headlamp high relay

• Low beam request signal
• High beam request signal

BCM (CAN)

• Headlamp low
• Headlamp high

EXL-3

Tail lamp relay

Position light request signal

BCM (CAN)

• Parking lamp
• Side marker lamp
• License plate lamp
• Tail  lamp

EXL-11

Illuminations

INL-9

• Front wiper relay
• Front wiper high relay

Front wiper request signal

BCM (CAN)

Front wiper

WW-2

Front wiper stop position sig-
nal

Front wiper motor

• Horn  relay  1
• Horn  relay  2

• Theft warning horn request 

signal

• Horn reminder signal

BCM (CAN)

• Horn (low)
• Horn (high)

SEC-12

• Starter relay

NOTE

• Starter control relay

Starter control relay signal

BCM (CAN)

Starter motor

SEC-4

Steering lock unit condition 
signal

Steering lock unit

Starter relay control signal

TCM

Steering lock relay

Steering lock relay signal

BCM (CAN)

Steering lock unit

SEC-4

Steering lock unit condition 
signal

Steering lock unit

A/T shift selector (Detention 
switch) signal

A/T shift selector
(Detention switch)

A/C relay

A/C compressor request sig-
nal

ECM (CAN)

A/C compressor
(Magnet clutch)

HAC-19

Ignition relay

Ignition switch ON signal

BCM (CAN)

Ignition relay 

—

Vehicle speed signal

Combination meter (CAN)

Push-button ignition switch 
signal

Push-button ignition switch

Daytime running light relay

Daytime running light request 
signal

BCM (CAN)

Headlamp high
(High beam at approxi-
mately half illumination)

EXL-7

NNMIA0048ZZ