Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Sentra 2000-2005 Approved Nissan Sentra 2002 BRC

<< Back | Home

Most service manuals and schematics are PDF files, so You will need Adobre Acrobat Reader to view : Acrobat Download Some of the files are DjVu format. Readers and resources available here : DjVu Resources
For the compressed files, most common are zip and rar. Please, extract files with Your favorite compression software ( WinZip, WinRAR ... ) before viewing. If a document has multiple parts, You should download all, before extracting.
Good luck. Repair on Your own risk. Make sure You know what You are doing.

Image preview - the first page of the document
BRC

>> Download BRC documenatation <<

Text preview - extract from the document

F BRAKES

B
SECTION
BRAKE CONTROL SYSTEM C

E
CONTENTS
ABS MODE ................................................................. 16
. BRC
CONSULT-II Inspection Procedure ........................ 17 .
PRECAUTIONS ......................................................... 3 . SELF-DIAGNOSIS PROCEDURE ..................... 17 .
Precautions for Supplemental Restraint System SELF-DIAGNOSTIC RESULTS MODE .............. 18 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- DATA MONITOR PROCEDURE ......................... 19 .
SIONER" ................................................................. 3
. ACTIVE TEST PROCEDURE ............................ 20 .
Precautions for Brake System ................................. 3 . DATA MONITOR MODE ..................................... 21 .
Wiring Diagrams and Trouble Diagnosis ................. 3 . H
ACTIVE TEST MODE ........................................ 21 .
PREPARATION .......................................................... 4 . TROUBLE DIAGNOSIS -- INTRODUCTION .......... 22 .
Commercial Service Tools ....................................... 4 . How to Perform Trouble Diagnoses for Quick and
DESCRIPTION ........................................................... 5 . Accurate Repair ..................................................... 22 . I
Purpose ................................................................... 5
. INTRODUCTION ................................................ 22 .
Operation ................................................................ 5
. TROUBLE DIAGNOSIS -- BASIC INSPECTION ... 23
ABS Hydraulic Circuit .............................................. 5 . Preliminary Check ................................................. 23 . J
System Components ............................................... 6 . Ground Circuit Check ............................................ 25 .
System Description ................................................. 6 . ABS ACTUATOR AND ELECTRIC UNIT
SENSOR .............................................................. 6. GROUND ........................................................... 25 .
CONTROL UNIT (BUILT-IN ABS ACTUATOR K
TROUBLE DIAGNOSIS -- GENERAL DESCRIP-
AND ELECTRIC UNIT) ........................................ 6 . TION ......................................................................... 26
.
ABS ACTUATOR AND ELECTRIC UNIT ............. 7 . Malfunction Code/Symptom Chart ......................... 26 .
Component Parts and Harness Connector Location 8 ..... WHEEL SENSOR OR ROTOR ................................ 27 . L
Schematic ............................................................... 9
. Diagnostic Procedure ............................................ 27 .
Wiring Diagram -- ABS -- .................................... 10 . ABS ACTUATOR SOLENOID VALVE AND SOLE-
ON BOARD DIAGNOSTIC SYSTEM DESCRIP- NOID VALVE RELAY ............................................... 29 . M
TION ......................................................................... 14
. Diagnostic Procedure ............................................ 29 .
Self-diagnosis ........................................................ 14
. MOTOR RELAY OR MOTOR ................................... 31 .
FUNCTION ......................................................... 14 . Diagnostic Procedure ............................................ 31 .
SELF-DIAGNOSIS PROCEDURE ..................... 14 . LOW VOLTAGE ....................................................... 33 .
HOW TO READ SELF-DIAGNOSTIC RESULTS Diagnostic Procedure ............................................ 33 .
(MALFUNCTION CODES) ................................. 15 . CONTROL UNIT ...................................................... 35 .
HOW TO ERASE SELF-DIAGNOSTIC Diagnostic Procedure ............................................ 35 .
RESULTS (MALFUNCTION CODES) ................ 15 . TROUBLE DIAGNOSES FOR SYMPTOMS ........... 36 .
CONSULT-II .......................................................... 16 . Symptom 1. ABS Works Frequently ...................... 36 .
CONSULT-II APPLICATION TO ABS ................. 16 . Symptom 2. Unexpected Pedal Action .................. 36 .
ECU (ABS CONTROL UNIT) PART NUMBER Symptom 3. Long Stopping Distance .................... 37 .
Symptom 4. ABS Does Not Work .......................... 38 .
Symptom 5. Pedal Vibration and Noise ................. 38 .
Symptom 6. Warning Lamp Does Not Come On
When Ignition Switch Is Turned On ....................... 39 .
Symptom 7. Warning Lamp Stays On When Ignition

BRC-1
Switch Is Turned On .............................................. 41
. REMOVAL AND INSTALLATION .............................44 .
Removal and Installation ........................................44
.
FRONT WHEEL SENSOR ..................................44 .
REAR WHEEL SENSOR (REAR DRUM) ...........44 .
REAR WHEEL SENSOR (REAR DISC) .............45 .
SENSOR ROTOR ...............................................45.
ACTUATOR ........................................................46
.

BRC-2
PRECAUTIONS
[ABS]
PRECAUTIONS PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS002RU

The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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 SRS and SB section of
this Service Manual. C
WARNING:
q 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 per-
formed by an authorized NISSAN/INFINITI dealer. D
q Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section. E
q 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 harness connec-
tors. BRC

Precautions for Brake System EFS002RV

q Recommended fluid is brake fluid "DOT 3". G
q Never reuse drained brake fluid.
q Be careful not to splash brake fluid on painted areas.
q To clean or wash all parts of master cylinder, disc brake cal- H
iper and wheel cylinder, use clean brake fluid.
q Never use mineral oils such as gasoline or kerosene. They
will ruin rubber parts of the hydraulic system. I
q Use flare nut wrench when removing and installing brake
tube.
q Always torque brake lines when installing. SBR686C J
q Burnish the brake contact surfaces after refinishing or
replacing drums or rotors, after replacing pads or linings, or if a soft pedal occurs at very low mile-
age. K
Refer to BR-6, "Brake Burnishing Procedure".
WARNING:
q Clean brake pads and shoes with a waste cloth, then wipe with a dust collector. L
Wiring Diagrams and Trouble Diagnosis EFS002RW

When you read wiring diagrams, refer to the following:
M
q GI-13, "How to Read Wiring Diagrams"
q PG-2, "POWER SUPPLY ROUTING"
When you perform trouble diagnosis, refer to the following:
q GI-10, "HOW TO FOLLOW TEST GROUPS IN TROUBLE DIAGNOSES"
q GI-26, "How to Perform Efficient Diagnosis for an Electrical Incident"

BRC-3
PREPARATION
[ABS]
PREPARATION PFP:00002

Commercial Service Tools EFS002RX

Tool name Description
1 Flare nut crowfoot Removing and installing brake piping
2 Torque wrench a: 10 mm (0.39 in)

S-NT360

BRC-4
DESCRIPTION
[ABS]
DESCRIPTION PFP:00000
A
Purpose EFS001EN

The Anti-Lock Brake System (ABS) consists of electronic and hydraulic components. It allows for control of
braking force so locking of the wheels can be avoided. B
1. Improves proper tracking performance through steering wheel operation.
2. Eases obstacle avoidance through steering wheel operation.
3. Improves vehicle stability. C

Operation EFS001EO

q When the vehicle speed is less than 10 km/h (6 MPH), this system does not work. D
q The Anti-Lock Brake System (ABS) has a self-test function. The system turns on the ABS warning lamp
for 1 second each time the ignition switch is turned "ON". After the engine is started, the ABS warning
lamp turns off. The system performs a test the first time the vehicle reaches 6 km/h (4 MPH). A mechani- E
cal noise may be heard as the ABS performs this self-test. This is a normal part of the self-test feature. If
a malfunction is found during this check, the ABS warning lamp will stay on.
q While driving, a mechanical noise may be heard during ABS operation. This is a normal condition.
BRC
ABS Hydraulic Circuit EFS001EP

ABR752

1. Inlet solenoid valve 2. Outlet solenoid valve 3. Pump
4. Motor 5. Bypass check valve 6. Damper
7. Solenoid valve relay actuator

BRC-5
DESCRIPTION
[ABS]
System Components EFS001EQ

WBR035

System Description EFS001ER

SENSOR
The sensor unit consists of a gear-shaped sensor rotor and a sensor
element. The element contains a bar magnet around which a coil is
wound. The front sensors are installed on the front spindles and the
rear sensors are installed on the rear spindles. As the wheel rotates,
the sensor generates a sine-wave pattern. The frequency and volt-
age increase(s) as the rotating speed increases.

SBR124B

CONTROL UNIT (BUILT-IN ABS ACTUATOR AND ELECTRIC UNIT)
The control unit computes the wheel rotating speed by the signal
current sent from the sensor. Then it supplies a DC current to the
actuator solenoid valve. It also controls ON-OFF operation of the
valve relay and motor relay. If any electrical malfunction should be
detected in the system, the control unit causes the warning lamp to
light up. In this condition, the ABS will be deactivated by the control
unit, and the vehicle's brake system reverts to normal operation. (For
control unit layout, refer to BRC-7, "ABS ACTUATOR AND ELEC-
TRIC UNIT" .)

WBR039

BRC-6
DESCRIPTION
[ABS]
ABS ACTUATOR AND ELECTRIC UNIT
The ABS actuator and electric unit contains: A
q An electric motor and pump
q Two relays
B
q Eight solenoid valves, each inlet and outlet for
-- LH front
-- RH front
-- LH rear C
-- RH rear
q ABS control unit
This component controls the hydraulic circuit and increases, holds or WBR040
D
decreases hydraulic pressure to all or individual wheels. The ABS
actuator and electric unit is serviced as an assembly.
ABS Actuator Operation E

Inlet solenoid Outlet solenoid
valve valve
BRC
Master cylinder brake fluid pressure is directly trans-
Normal brake operation OFF (Open) OFF (Closed)
mitted to caliper via the inlet solenoid valve.
Hydraulic circuit is shut off to hold the caliper brake
Pressure hold ON (Closed) OFF (Closed) G
fluid pressure.
Caliper brake fluid is sent to reservoir via the outlet
Pressure
ABS operation ON (Closed) ON (Open) solenoid valve. Then it is pushed up to the master
decrease
cylinder by pump. H
Pressure Master cylinder brake fluid pressure is transmitted to
OFF (Open) OFF (Closed)
increase caliper.
I

BRC-7
DESCRIPTION
[ABS]
Component Parts and Harness Connector Location EFS001ES

WFIA0039E

BRC-8
DESCRIPTION
[ABS]
Schematic EFS001ET

BRC

WFWA0001E

BRC-9
DESCRIPTION
[ABS]
Wiring Diagram -- ABS -- EFS001EU

WFWA0002E

LBR071

BRC-10
DESCRIPTION
[ABS]

BRC

WFWA0004E

LBR072

BRC-11
DESCRIPTION
[ABS]

WFWA0006E

BRC-12
DESCRIPTION
[ABS]
ABS ACTUATOR AND ELECTRIC UNIT (CONTROL UNIT)
TERMINALS AND REFERENCE VALUE MEASURED BETWEEN EACH TERMINAL AND GROUND
A
TERMINAL WIRE
ITEM CONDITION DATA (APPROX.)
NO. COLOR

ABS WARNING LAMP IN WHEN ABS LAMP IS ACTIVE 0V
10 L/B B
COMBINATION METER WHEN ABS LAMP IS NOT ACTIVE BATTERY VOLTAGE
11 GY/L DATA LINK CONNECTOR -- --
12 OR/B DATA LINK CONNECTOR -- -- C
WHEN BRAKE PEDAL IS DEPRESSED BATTERY VOLTAGE
14 R/G STOP LAMP SWITCH
WHEN BRAKE PEDAL IS RELEASED 0V
D
22 G/B DATA LINK CONNECTOR -- --

BRC

BRC-13
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[ABS]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION PFP:00000

Self-diagnosis EFS001EV

FUNCTION
q When a problem occurs in the ABS, the warning lamp on the instrument panel comes on. To start the self-
diagnostic results mode, ground the self-diagnostic (check) terminal located on Data Link Connector. The
location of the malfunction is indicated by the warning lamp flashing.
SELF-DIAGNOSIS PROCEDURE
1. Drive vehicle over 30 km/h (19 MPH) for at least one minute.
2. Turn ignition switch OFF.
3. Ground terminal 9 of Data Link Connector with a suitable har-
ness.
4. Turn ignition switch ON while grounding terminal 9.
Do not depress brake pedal.

WBR045

5. After 3.0 seconds, the warning lamp starts flashing to indicate
the malfunction code No. (See NOTE.)
6. Verify the location of the malfunction with the malfunction code
chart. Refer to BRC-26, "Malfunction Code/Symptom Chart" .
Then make the necessary repairs following the diagnostic pro-
cedures.
7. After the malfunctions are repaired, erase the malfunction codes
stored in the control unit. Refer to BRC-15, "HOW TO ERASE
SELF-DIAGNOSTIC RESULTS (MALFUNCTION CODES)" .
8. Rerun the self-diagnostic results mode to verify that the malfunc-
tion codes have been erased. WBR039

9. Disconnect the check terminal from the ground. The self-diag-
nostic results mode is now complete.
10. Check warning lamp for deactivation after driving vehicle over
30 km/h (19 MPH) for at least one minute.
11. After making certain that warning lamp does not come on, test
the ABS in a safe area to verify that it functions properly.
NOTE:
The indication terminates after 5 minutes.
However, when the ignition switch is turned from OFF to ON, the
indication starts flashing again.
WBR045

BRC-14
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[ABS]
HOW TO READ SELF-DIAGNOSTIC RESULTS (MALFUNCTION CODES)
1. Determine the code No. by counting the number of times the warning lamp flashes on and off. A
2. When several malfunctions occur at one time, up to three code numbers can be stored; the latest mal-
function will be indicated first.
3. The indication begins with the start code 12. After that a maximum of three code numbers appear in the B
order of the latest one first. The indication then returns to the start code 12 to repeat (the indication will
stay on for five minutes at most).
4. Refer to BRC-26, "Malfunction Code/Symptom Chart" for a list of malfunction codes. C

BRC

SBR457D

G
HOW TO ERASE SELF-DIAGNOSTIC RESULTS (MALFUNCTION CODES)
1. Disconnect the check terminal from ground (ABS warning lamp
will stay lit).
H
2. Within 12.5 seconds, ground the check terminal three times.
Each terminal ground must last more than 1 second. The ABS
warning lamp goes out after the erase operation has been com-
pleted. I
3. Perform self-diagnosis again. Refer to BRC-14, "SELF-DIAG-
NOSIS PROCEDURE" . Only the start code should appear, no
malfunction codes. J

ABR256

BRC-15
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
[ABS]
CONSULT-II EFS001EW

CONSULT-II APPLICATION TO ABS
SELF-DIAGNOSTIC
ITEM DATA MONITOR ACTIVE TEST
RESULTS
Front right wheel sensor

◦ Jabse Service Manual Search 2024 ◦ Jabse Pravopis ◦ onTap.bg ◦ Other service manual resources online : Fixya ◦ eServiceinfo