Nissan Sentra. Manual - part 662

PCS

PCS-1

ELECTRICAL & POWER CONTROL

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SECTION 

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CONTENTS

POWER CONTROL SYSTEM

IPDM E/R (WITH I-KEY)

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

4

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

4

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

4

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

5

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

5

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

5

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

6

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

6

RELAY CONTROL SYSTEM : System Diagram ......

6

RELAY CONTROL SYSTEM : System Descrip-
tion ............................................................................

7

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

7

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

8

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

8

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

9

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

9

CONSULT Function (IPDM E/R) .............................

10

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

13

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

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

13

Fail-safe ..................................................................

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

20

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

21

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

21

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

21

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

26

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

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

26

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

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

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B2098 IGNITION RELAY ON STUCK  ..............

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

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

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B2099 IGNITION RELAY OFF STUCK  ............

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

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

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POWER SUPPLY AND GROUND CIRCUIT  ....

29

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

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

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IPDM E/R ...........................................................

30

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

30

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

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IPDM E/R (WITHOUT I-KEY)

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

32

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

32

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

32

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

33

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

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

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

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

34

RELAY CONTROL SYSTEM : System Diagram .....

34

PCS-2

RELAY CONTROL SYSTEM : System Descrip-
tion ..........................................................................

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POWER CONSUMPTION CONTROL SYSTEM .......

35

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

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

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

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

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CONSULT Function (IPDM E/R)  ............................

38

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

41

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

41

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

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Fail-Safe .................................................................

47

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

48

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

49

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

49

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

49

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

54

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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B2098 IGNITION RELAY ON STUCK ...............

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

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

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B2099 IGNITION RELAY OFF STUCK  .............

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

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

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POWER SUPPLY AND GROUND CIRCUIT  .....

57

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

57

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

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IPDM E/R  ...........................................................

58

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

58

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

58

POWER DISTRIBUTION SYSTEM

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

60

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

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

60

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

61

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

61

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

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Component Description  ..........................................

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

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

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POWER DISTRIBUTION SYSTEM : System Dia-
gram ........................................................................

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POWER DISTRIBUTION SYSTEM : System De-
scription ...................................................................

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

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

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

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

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

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

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BCM, IPDM E/R  .................................................

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List of ECU Reference  ............................................

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

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

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

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

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DIAGNOSIS AND REPAIR WORK FLOW ........

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Work Flow  ...............................................................

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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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B2614 ACC RELAY CIRCUIT  ...........................

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

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

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

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B2615 BLOWER RELAY CIRCUIT ...................

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

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

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

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B2616 IGNITION RELAY CIRCUIT ...................

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

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

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

87

B2618 BCM  .......................................................

88

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

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

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B261A PUSH-BUTTON IGNITION SWITCH  .....

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

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

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B26F1 IGNITION RELAY  ...................................

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

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

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B26F2 IGNITION RELAY  ...................................

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

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

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B26F6 BCM  ........................................................

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

96

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

96

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

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Component Function Check ..................................

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

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

99

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

101

PUSH-BUTTON IGNITION SWITCH DOES 
NOT OPERATE ...............................................

101

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

101

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

101

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

102

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

102

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

102

PCS-4

< PRECAUTION >

[IPDM E/R (WITH I-KEY)]

PRECAUTIONS

PRECAUTION

PRECAUTIONS

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

INFOID:0000000009755805

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.