ABS NISSAN ALMERA 2001 Service Manual

ComponentsNJAT0107
SAT996J
CAUTION:
+Install key interlock cable in such a way that it will not be
damaged by sharp bends, twists or interference with adja-
cent parts.
+After installing key interlock cable to control device, make
sure that casing cap and bracket are firmly secured in
their positions.
SAT853J
RemovalNJAT01081. Unlock slider by squeezing lock tabs on slider from adjuster
holder and remove interlock rod from cable.
KEY INTERLOCK CABLE
Components
AT-349

Wheel Hub and Knuckle
COMPONENTS=NJAX0008
SAX007-A
1. Drive shaft
2. Knuckle
3. Baffle plate (where fitted)
4. ABS sensor5. Wheel bearing assembly
6. Snap ring
7. Hub bolt
8. Wheel hub9. Wheel bearing lock nut
10. Cotter pin
11. Brake disc
12. Wheel nut
REMOVALNJAX0009CAUTION:
Before removing the front axle assembly, disconnect the ABS
wheel sensor from the assembly. Then move it away from the
front axle assembly area.
Failure to do so may result in damage to the sensor wires and
the sensor becoming inoperative.
SFA090A
1. Remove wheel bearing lock nut.
FRONT AXLE
Wheel Hub and Knuckle
AX-5

SBR686C
Precautions
PRECAUTIONSNJAX0022+When installing each rubber part, final tightening must be
carried out under unladen condition* with tires on ground.
*: Fuel, radiator coolant and engine oil full. Spare tire, jack,
hand tools and mats in designated positions.
+Use flare nut wrench when removing or installing brake
tubes.
+After installing removed suspension parts, check wheel
alignment.
+Do not jack up at the trailing arm and lateral link.
+Always torque brake lines when installing.
Preparation
SPECIAL SERVICE TOOLSNJAX0032
Tool number
Tool nameDescription
KV40104710
Drift
NT474
Install ABS sensor rotor
a: 76.3 mm (3.004 in) dia.
b: 67.9 mm (2.673 in) dia.
ST3072000
Drift
NT115
Install ABS sensor rotor
a: 77 mm (3.03 in) dia.
b: 55.5 mm (2.185 in) dia.
COMMERCIAL SERVICE TOOLSNJAX0024
Tool name Description
1 Flare nut crowfoot
2 Torque wrench
NT360
Removing and installing brake piping
a: 10 mm (0.39 in)
REAR AXLE
Precautions
AX-22

Wheel Hub
COMPONENTSNJAX0028
SAX013-A
1. Spindle
2. Baffle plate
3. Back plate4. ABS sensor rotor
5. Wheel hub bearing
6. Wheel bearing lock nut7. Hub cap
8. ABS sensor
REMOVALNJAX0029CAUTION:
+Before removing the rear wheel hub assembly, disconnect
the ABS wheel sensor from the assembly. Then move it
away from the hub assembly. Failure to do so may result
in damage to the sensor wires and the sensor becoming
inoperative.
+Wheel hub bearing does not require maintenance. If any of
the following symptoms are noted, replace wheel hub
bearing assembly.
1) Growling noise is emitted from wheel hub bearing dur-
ing operation.
2) Wheel hub bearing drags or turns roughly. This occurs
when turning hub by hand after bearing lock nut is tight-
ened to specified torque.
REAR AXLE
Wheel Hub
AX-24

SRA711A
1. Remove brake caliper assembly.
2. Remove wheel bearing lock nut.
3. Remove brake rotor (models with disk brake) or brake drum
(models with drum brakes).
4. Remove wheel hub bearing from spindle.
CAUTION:
Do not disconnect brake hose from caliper.
+Suspend caliper assembly with wire so as not to stretch
brake hose.
+Be careful not to depress brake pedal, or piston will pop
out.
Make sure brake hose is not twisted.
ARA082
5. Remove the sensor rotor using suitable puller, drift and bea
ring replacer.
SAX014
INSTALLATIONNJAX0030+With vehicles equipped with ABS, press-fit ABS sensor rotor
into wheel hub bearing using a drift.
Do not reuse ABS sensor rotor. When installing, replace it
with a new one.
SRA734AB
+Press-fit ABS sensor rotor as far as the location shown in fig-
ure at left.
Height ªhº:
Models with disk brakes
1.5 - 2.5 mm (0.059 - 0.098 in)
Models with drum brakes
17.7 - 18.7 mm (0.697 - 0.736 in)
REAR AXLE
Wheel Hub (Cont'd)
AX-25

BRAKE SYSTEM
SECTION
BR
CONTENTS
PRECAUTIONS...............................................................4
Supplemental Restraint System (SRS)²AIR
BAG²and²SEAT BELT PRE-TENSIONER²...............4
Precautions for Brake System .....................................4
Precautions When Working On ABS ...........................5
Wiring Diagrams and Trouble Diagnosis .....................5
PREPARATION...............................................................6
Commercial Service Tools ...........................................6
NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING.....................................................7
NVH Troubleshooting Chart.........................................7
ON-VEHICLE SERVICE..................................................8
Checking Brake Fluid Level.........................................8
Checking Brake Line ...................................................8
Changing Brake Fluid ..................................................8
Brake Burnishing Procedure........................................8
Bleeding Brake System ...............................................9
BRAKE HYDRAULIC LINE...........................................10
Hydraulic Circuit.........................................................10
Removal .....................................................................10
Inspection................................................................... 11
Installation .................................................................. 11
BRAKE PEDAL AND BRACKET..................................12
Removal and Installation ...........................................12
Inspection...................................................................12
Adjustment .................................................................12
MASTER CYLINDER (TOKICO)...................................14
Removal .....................................................................14
Disassembly...............................................................15
Inspection...................................................................15
Assembly ...................................................................15
Installation ..................................................................16
MASTER CYLINDER [BOSCH (NABCO)]...................17
Removal .....................................................................17
Disassembly...............................................................17
Inspection...................................................................18
Assembly ...................................................................18
Installation ..................................................................19BRAKE BOOSTER........................................................20
On-vehicle Service.....................................................20
OPERATING CHECK...............................................20
AIRTIGHT CHECK...................................................20
Removal .....................................................................20
Inspection...................................................................20
OUTPUT ROD LENGTH CHECK..............................20
Installation ..................................................................21
VACUUM HOSE.............................................................22
Removal and Installation ...........................................22
Inspection...................................................................22
HOSES AND CONNECTORS...................................22
CHECK VALVE........................................................22
VACUUM PUMP............................................................23
Removal .....................................................................23
Installation ..................................................................24
Inspection...................................................................24
Component ................................................................25
Disassembly...............................................................25
Assembly ...................................................................25
FRONT DISC BRAKE...................................................27
Component ................................................................27
Pad Replacement ......................................................27
Removal .....................................................................28
Disassembly...............................................................28
Inspection...................................................................28
CALIPER.................................................................28
ROTOR...................................................................29
Assembly ...................................................................30
Installation ..................................................................30
REAR DRUM BRAKE...................................................31
Components...............................................................31
Removal .....................................................................31
Inspection - Wheel Cylinder ......................................32
Wheel Cylinder Overhaul...........................................33
Inspection - Drum ......................................................33
Inspection - Lining .....................................................33
Installation ..................................................................33

REAR DISC BRAKE (CAM & STRUT TYPE)..............35
Component ................................................................35
Pad Replacement ......................................................35
Removal .....................................................................37
Disassembly...............................................................37
Inspection...................................................................38
CALIPER.................................................................38
ROTOR...................................................................39
Assembly ...................................................................39
Installation ..................................................................42
REAR DISC BRAKE (BALL & RAMP TYPE)..............43
Component ................................................................43
Pad Replacement ......................................................43
Removal .....................................................................45
Disassembly...............................................................45
Inspection...................................................................45
CALIPER.................................................................45
ROTOR...................................................................46
Installation ..................................................................46
PARKING BRAKE CONTROL......................................47
Components...............................................................47
Removal and Installation ...........................................47
Inspection...................................................................47
Adjustment .................................................................48
ABS
DESCRIPTION...............................................................49
Purpose......................................................................49
ABS (Anti-Lock Brake System) Operation ................49
ABS Hydraulic Circuit ................................................49
System Components .................................................50
System Description ....................................................50
SENSOR.................................................................50
CONTROL UNIT......................................................50
ABS ACTUATOR AND ELECTRIC UNIT....................50
Component Parts and Harness Connector
Location .....................................................................52
Schematic/Sedan .......................................................53
Wiring Diagram - ABS -/Sedan..................................54
Schematic/Hatchback ................................................58
Wiring Diagram - ABS -/Hatchback ...........................59
MODELS WITH SELF-DIAGNOSIS FUNCTION
(DATA LINK CONNECTOR TERMINAL NO. 9)
...........59
MODELS WITHOUT SELF-DIAGNOSIS
FUNCTION (DATA LINK CONNECTOR TERMINAL
NO. 9)
.....................................................................60
ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION...............................................................63
Self-diagnosis (Only Models with Data Link
Connector Terminal No. 9) ........................................63
FUNCTION..............................................................63
SELF-DIAGNOSIS PROCEDURE..............................63
HOW TO READ SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)
........................................64
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)
........................................64
CONSULT-II ...............................................................65
CONSULT-II APPLICATION TO ABS..........................65
ECU (ABS CONTROL UNIT) PART NUMBER
MODE
.....................................................................65
CONSULT-II Inspection Procedure............................65
SELF-DIAGNOSIS PROCEDURE..............................65
SELF-DIAGNOSTIC RESULTS MODE.......................67
DATA MONITOR PROCEDURE................................68
ACTIVE TEST PROCEDURE....................................69
DATA MONITOR MODE...........................................70
ACTIVE TEST MODE...............................................70
TROUBLE DIAGNOSIS - INTRODUCTION..................71
How to Perform Trouble Diagnoses for Quick
and Accurate Repair ..................................................71
INTRODUCTION......................................................71
TROUBLE DIAGNOSIS - BASIC INSPECTION...........72
Preliminary Check......................................................72
Ground Circuit Check ................................................75
ABS ACTUATOR AND ELECTRIC UNIT GROUND.....75
TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION...............................................................76
Malfunction Code/Symptom Chart.............................76
MODELS WITH SELF-DIAGNOSIS FUNCTION
(DATA LINK CONNECTOR TERMINAL NO. 9)
...........76
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC
ITEMS.............................................................................78
Wheel Sensor or Rotor ..............................................78
DIAGNOSTIC PROCEDURE.....................................78
ABS Actuator Solenoid Valve or Solenoid Valve
Relay ..........................................................................81
DIAGNOSTIC PROCEDURE.....................................81
Motor Relay or Motor.................................................84
DIAGNOSTIC PROCEDURE.....................................84
Low Voltage ...............................................................86
DIAGNOSTIC PROCEDURE.....................................86
Control Unit ................................................................88
DIAGNOSTIC PROCEDURE.....................................88
TROUBLE DIAGNOSES FOR SYMPTOMS.................89
1. ABS Works Frequently ..........................................89
2. Unexpected Pedal Action ......................................89
3. Long Stopping Distance ........................................90
4. ABS Does Not Work ..............................................91
5. Pedal Vibration and Noise.....................................92
6. ABS Warning Lamp Does Not Come On
When Ignition Switch Is Turned On...........................93
7. ABS Warning Lamp Stays On When Ignition
Switch Is Turned On ..................................................95
REMOVAL AND INSTALLATION.................................97
Wheel Sensors ..........................................................97
ABS Actuator and Electric Unit..................................98
CONTENTS(Cont'd)
BR-2

PrecautionsWhe nWorkin gOn ABS
Precautions When Working On ABS

pressure such that vehicle stopping time equals 3 to 5 sec-
onds.
3. To cool the brake system, drive the vehicle at 50 km/h (31
MPH) for 1 minute without stopping.
4. Repeat steps 1 to 3, 10 times or more to complete the burnish-
ing procedure.
SBR995
Bleeding Brake SystemNJBR0009CAUTION:
+Carefully monitor brake fluid level at master cylinder dur-
ing bleeding operation.
+Fill reservoir with new brake fluid ªDOT 4º. Make sure it is
full at all times while bleeding air out of system.
+Place a container under master cylinder to avoid spillage
of brake fluid.
+For models with ABS, turn ignition switch OFF and dis-
connect ABS actuator connectors or battery ground cable.
SBR419C
+Bleed air in the following order.
Right rear brake®Left front brake®Left rear brake®Right
front brake
1. Connect a transparent vinyl tube to air bleeder valve.
2. Fully depress brake pedal several times.
3. With brake pedal depressed, open air bleeder valve to release
air.
4. Close air bleeder valve.
5. Release brake pedal slowly.
6. Repeat steps 2. through 5. until clear brake fluid comes out of
air bleeder valve.
ON-VEHICLE SERVICE
Brake Burnishing Procedure (Cont'd)
BR-9

PurposeNJBR0082The ABS consists of electronic and hydraulic components. It allows for control of braking force so that lock-
ing of the wheels can be avoided.
The ABS:
1) Ensures proper tracking performance through steering wheel operation.
2) Enables obstacles to be avoided through steering wheel operation.
3) Ensures vehicle stability by preventing flat spins.
ABS (Anti-Lock Brake System) OperationNJBR0083+When the vehicle speed is less than 10 km/h (6 MPH) this system does not work.
+The Anti-Lock Brake System (ABS) has self-test capabilities. The system turns on the ABS warning lamp
for 1 second after turning the ignition switch ON. The system performs another test the first time the vehicle
reaches 6 km/h (4 MPH). A mechanical noise may be heard as the ABS performs a 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
come on.
+During ABS operation, a mechanical noise may be heard. This is a normal condition.
ABS Hydraulic CircuitNJBR0084
SBR757E
1. Inlet solenoid valve
2. Outlet solenoid valve
3. Reservoir4. Pump
5. Motor6. Bypass check valve
7. Damper
DESCRIPTIONABS
Purpose
BR-49