Nissan Maxima. Manual - part 233

BCS

BCM (BODY CONTROL MODULE)

BCS-79

< REMOVAL AND INSTALLATION >

[BCM]

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REMOVAL AND INSTALLATION

BCM (BODY CONTROL MODULE)

Removal and Installation

INFOID:0000000009467084

REMOVAL

CAUTION:

Before replacing BCM, perform "READ CONFIGURATION" to save or print current vehicle specifica-

tion. Refer to 

BCS-5, "ADDITIONAL SERVICE WHEN REPLACING CONTROL UNIT (BCM) : Work Proce-

dure"

.

1. Remove the combination meter. Refer to 

MWI-122, "Removal and Installation"

.

2. Remove the BCM screws (A) using a suitable tool and pull out

the BCM (1).

3. Disconnect the harness connector from the BCM (1) and

remove.

INSTALLATION

Installation is in the reverse order of removal.

CAUTION:

• When replacing BCM, perform "WRITE CONFIGURATION". Refer to 

BCS-5, "ADDITIONAL SERVICE

WHEN REPLACING CONTROL UNIT (BCM) : Work Procedure"

.

• When replacing BCM, perform the system initialization (NATS). Refer to the CONSULT immobilizer

mode and follow the on-screen instructions. 

• When replacing BCM, if new BCM does not come with keyfobs attached, all existing keyfobs must be

re-registered. Refer to the CONSULT immobilizer mode and follow the on-screen instructions.

ALMIA0485ZZ

BR-1

BRAKES

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SECTION 

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CONTENTS

BRAKE SYSTEM

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

3

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

3

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

3

Precaution for Procedure without Cowl Top Cover ......

3

Precaution for Brake System  ....................................

3

PREPARATION ............................................

5

PREPARATION ...................................................

5

Special Service Tool  .................................................

5

Commercial Service Tool  ..........................................

5

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

6

NOISE, VIBRATION AND HARSHNESS 
(NVH) TROUBLESHOOTING  .............................

6

NVH Troubleshooting Chart  ......................................

6

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

7

FRONT DISC BRAKE .........................................

7

BRAKE PAD ................................................................

7

BRAKE PAD : Inspection of Pad ...............................

7

DISC ROTOR ...............................................................

7

DISC ROTOR : Inspection of Rotor  ..........................

7

REAR DISC BRAKE ...........................................

8

BRAKE PAD ................................................................

8

BRAKE PAD : Inspection of Pad ...............................

8

DISC ROTOR ...............................................................

8

DISC ROTOR : Inspection of Rotor  ..........................

8

BRAKE BOOSTER  .............................................

9

Inspection ..................................................................

9

VACUUM LINES .................................................

10

Inspection ................................................................

10

BRAKE MASTER CYLINDER  ..........................

11

Inspection ................................................................

11

BRAKE TUBE AND HOSE  ...............................

12

Hydraulic Circuit  ......................................................

12

FRONT BRAKE  .........................................................

12

FRONT BRAKE : Inspection ....................................

12

REAR BRAKE ............................................................

13

REAR BRAKE : Inspection  ......................................

13

PERIODIC MAINTENANCE  ........................

14

BRAKE PEDAL .................................................

14

Inspection and Adjustment  ......................................

14

BRAKE FLUID  ..................................................

16

Inspection ................................................................

16

Drain and Refill  ........................................................

16

Bleeding Brake System  ...........................................

16

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

18

BRAKE PEDAL .................................................

18

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

18

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

18

BRAKE TUBE AND HOSE  ...............................

20

Hydraulic Circuit  ......................................................

20

Removal and Installation of Front Brake Piping 
and Brake Hose .......................................................

20

Removal and Installation of Rear Brake Piping 
and Brake Hose .......................................................

21

Inspection After Installation  .....................................

22

BRAKE MASTER CYLINDER  ..........................

24

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

24

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

24

BRAKE BOOSTER  ...........................................

26

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

26

Removal and installation  .........................................

26

BR-2

VACUUM LINES  ................................................

28

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

28

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

28

FRONT DISC BRAKE ........................................

30

Exploded View of Brake Pads  ................................

30

Removal and Installation of Brake Pads .................

30

Brake Burnishing Procedure ...................................

31

Exploded View of Brake Caliper  .............................

32

Removal and Installation of Brake Caliper and Ro-
tor ...........................................................................

32

REAR DISC BRAKE ..........................................

34

Exploded View of Brake Pads  ................................

34

Removal and Installation of Brake Pads .................

34

Brake Burnishing Procedure ...................................

35

Exploded View of Brake Caliper  .............................

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Removal and Installation of Brake Caliper and Ro-
tor ...........................................................................

36

UNIT DISASSEMBLY AND ASSEMBLY ...

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FRONT DISC BRAKE  .......................................

39

Disassembly and Assembly  ....................................

39

REAR DISC BRAKE ..........................................

42

Disassembly and Assembly  ....................................

42

SERVICE DATA AND SPECIFICATIONS 
(SDS) ..........................................................

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SERVICE DATA AND SPECIFICATIONS 
(SDS) .................................................................

45

General Specifications  ............................................

45

Brake Pedal  ............................................................

45

Check Valve ............................................................

46

Brake Booster  .........................................................

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Front Disc Brake  .....................................................

46

Rear Disc Brake ......................................................

46

PRECAUTIONS

BR-3

< PRECAUTION >

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PRECAUTION

PRECAUTIONS

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

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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. This system includes seat belt switch inputs and dual stage front air bag modules. The SRS

system uses the seat belt switches to determine the front air bag deployment, and may only deploy one front

air bag, depending on the severity of a collision and whether the front occupants are belted or unbelted.

Information necessary to service the system safely is included in the SR and SB section of this Service Man-

ual.

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 3 minutes before performing any service.

Precaution for Procedure without Cowl Top Cover

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When performing the procedure after removing cowl top cover, cover

the lower end of windshield with urethane, etc.

Precaution for Brake System

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• Always use recommended brake fluid. Refer to 

MA-15, "FOR USA AND CANADA : Fluids and Lubricants"

(for United States and Canada) or 

MA-16, "FOR MEXICO : Fluids and Lubricants"

 (for Mexico).

• Do not reuse drained brake fluid.

• Do not spill or splash brake fluid on painted surfaces. Brake fluid may seriously damage paint. Wipe it off

immediately and wash with water if it gets on a painted surface.

• Always confirm the specified tightening torque when installing the brake pipes.

• After pressing the brake pedal more deeply or harder than normal driving, such as air bleeding, check each

item of brake pedal. Adjust brake pedal if it is outside the standard value.

• Do not use mineral oils such as gasoline or light oil to clean. They may damage rubber parts and cause

improper operation.

• Always loosen the brake tube flare nut with a flare nut wrench.

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