Nissan Pathfinder. Manual - part 203

BCS

BCS-1

ELECTRICAL & POWER CONTROL

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SECTION 

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CONTENTS

BODY CONTROL SYSTEM

BCM

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

3

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

3

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

3

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

4

COMPONENT PARTS  ........................................

4

BODY CONTROL SYSTEM  ........................................

4

BODY CONTROL SYSTEM : Component Parts 
Location .....................................................................

4

COMBINATION SWITCH READING SYSTEM  ...........

4

COMBINATION SWITCH READING SYSTEM : 
Component Parts Location ........................................

5

POWER CONSUMPTION CONTROL SYSTEM  .........

5

POWER CONSUMPTION CONTROL SYSTEM : 
Component Parts Location ........................................

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SYSTEM ..............................................................

7

BODY CONTROL SYSTEM  ........................................

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BODY CONTROL SYSTEM : System Description ......

7

COMBINATION SWITCH READING SYSTEM  ...........

8

COMBINATION SWITCH READING SYSTEM : 
System Diagram ........................................................

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COMBINATION SWITCH READING SYSTEM : 
System Description  ...................................................

8

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

11

SIGNAL BUFFER SYSTEM : System Diagram  ......

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SIGNAL BUFFER SYSTEM : System Description ....

12

POWER CONSUMPTION CONTROL SYSTEM  .......

12

POWER CONSUMPTION CONTROL SYSTEM : 
System Diagram ......................................................

12

POWER CONSUMPTION CONTROL SYSTEM : 
System Description ..................................................

12

DIAGNOSIS SYSTEM (BCM)  ...........................

14

COMMON ITEM  .........................................................

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COMMON ITEM : CONSULT Function (BCM - 
COMMON ITEM)  .....................................................

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DOOR LOCK ..............................................................

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DOOR LOCK : CONSULT Function (BCM - 
DOOR LOCK) ..........................................................

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REAR DEFOGGER ....................................................

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REAR DEFOGGER : CONSULT Function (BCM - 
REAR DEFOGGER) ................................................

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BUZZER .....................................................................

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BUZZER : CONSULT Function (BCM - BUZZER) ....

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INT LAMP ...................................................................

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INT LAMP : CONSULT Function (BCM - INT 
LAMP) ......................................................................

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HEADLAMP ...............................................................

18

HEADLAMP : CONSULT Function (BCM - HEAD-
LAMP) ......................................................................

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WIPER ........................................................................

19

WIPER : CONSULT Function (BCM - WIPER)  .......

19

FLASHER ...................................................................

20

FLASHER : CONSULT Function (BCM - FLASH-
ER) ..........................................................................

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AIR CONDITIONER  ...................................................

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AIR CONDITIONER : CONSULT Function (BCM - 
AIR CONDITIONER)  ...............................................

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INTELLIGENT KEY ....................................................

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INTELLIGENT KEY : CONSULT Function (BCM - 
INTELLIGENT KEY)  ................................................

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COMB SW ..................................................................

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BCS-2

COMB SW : CONSULT Function (BCM - COMB 
SW) .........................................................................

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

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BCM : CONSULT Function (BCM - BCM)  ..............

24

IMMU .........................................................................

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IMMU : CONSULT Function (BCM - IMMU)  ...........

25

BATTERY SAVER  ....................................................

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BATTERY SAVER : CONSULT Function (BCM - 
BATTERY SAVER) .................................................

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TRUNK ......................................................................

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TRUNK : CONSULT Function (BCM - TRUNK)  .....

26

THEFT ALM  ..............................................................

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THEFT ALM : CONSULT Function (BCM - THEFT 
ALM) .......................................................................

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RETAINED PWR  .......................................................

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RETAINED PWR : CONSULT Function (BCM - 
RETAINED PWR)  ...................................................

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SIGNAL BUFFER ......................................................

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SIGNAL BUFFER : CONSULT Function (BCM - 
SIGNAL BUFFER) ..................................................

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AIR PRESSURE MONITOR ......................................

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AIR PRESSURE MONITOR : CONSULT Function 
(BCM-AIR PRESSURE MONITOR)  .......................

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

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

30

Reference Value .....................................................

30

Fail Safe .................................................................

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DTC Inspection Priority Chart ..............................

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DTC Index ..............................................................

52

WIRING DIAGRAM  .....................................

55

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

55

Wiring Diagram  .......................................................

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BASIC INSPECTION ...................................

64

INSPECTION AND ADJUSTMENT  ...................

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ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (BCM)  ............................................

64

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (BCM) : Description  ....................

64

ADDITIONAL SERVICE WHEN REPLACING 
CONTROL UNIT (BCM) : Work Procedure  ............

64

CONFIGURATION (BCM) .........................................

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CONFIGURATION (BCM) : Description  .................

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CONFIGURATION (BCM) : Work Procedure  .........

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CONFIGURATION (BCM) : Configuration List  .......

66

TRANSIT MODE CANCEL OPERATION  .........

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

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Work Procedure  ......................................................

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

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U1000 CAN COMM CIRCUIT ............................

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

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DTC Logic  ...............................................................

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

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U1010 CONTROL UNIT (CAN)  .........................

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DTC Logic  ...............................................................

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

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U0415 VEHICLE SPEED SIG ............................

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

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DTC Logic  ...............................................................

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

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B2562 LOW VOLTAGE .....................................

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DTC Logic  ...............................................................

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

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B259A ROOM LAMP FUSE  ..............................

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DTC Logic  ...............................................................

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

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POWER SUPPLY AND GROUND CIRCUIT .....

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

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COMBINATION SWITCH INPUT CIRCUIT .......

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

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COMBINATION SWITCH OUTPUT CIRCUIT ...

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

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SYMPTOM DIAGNOSIS  ............................

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COMBINATION SWITCH SYSTEM SYMP-
TOMS .................................................................

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Symptom Table .......................................................

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

80

BCM (BODY CONTROL MODULE) ..................

80

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

80

COMBINATION SWITCH  ..................................

81

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

81

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

81

BCS

PRECAUTIONS

BCS-3

< PRECAUTION >

[BCM]

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PRECAUTION

PRECAUTIONS

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

INFOID:0000000009726119

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 Service Manual.

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 Manual. 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.

BCS-4

< SYSTEM DESCRIPTION >

[BCM]

COMPONENT PARTS

SYSTEM DESCRIPTION

COMPONENT PARTS

BODY CONTROL SYSTEM
BODY CONTROL SYSTEM : Component Parts Location

INFOID:0000000009174862

COMBINATION SWITCH READING SYSTEM

1.

BCM (view with combination meter 
removed)

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