Infiniti G20 (P11). Manual - part 106

 

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Infiniti G20 (P11). Manual - part 106

 

 

SRA690A

REAR WHEEL BEARING

NCAX0027

I

Check axial end play.

Axial end play:

0.05 mm (0.0020 in) or less

I

Check that wheel hub bearings operate smoothly.

I

Check tightening torque of wheel bearing lock nut.

: 186 - 255 N·m (19 - 26 kg-m, 137 - 188 ft-lb)

I

Replace wheel bearing assembly if there is axial end play or
wheel bearing does not turn smoothly. Refer to “Wheel Hub”,
“REAR AXLE”, AX-21.

Wheel Hub

COMPONENTS

NCAX0028

SRA790AB

1.

Spindle

2.

Baffle plate

3.

Wheel hub bearing

4.

Wheel bearing lock nut

5.

Cotter pin

6.

Hub cap

7.

ABS sensor

REMOVAL

NCAX0029

CAUTION:

I

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.

I

Wheel hub bearing does not require maintenance. If any of
the following symptoms are noted, replace wheel hub
bearing assembly.

GI

MA

EM

LC

EC

FE

CL

MT

AT

SU

BR

ST

RS

BT

HA

SC

EL

IDX

REAR AXLE

On-vehicle Service (Cont’d)

AX-21

I

Growling noise is emitted from wheel hub bearing during
operation.

I

Wheel hub bearing drags or turns roughly. This occurs
when turning hub by hand after bearing lock nut is tight-
ened to specified torque.

SRA711A

1.

Remove brake caliper assembly.

2.

Remove wheel bearing lock nut.

3.

Remove brake rotor.

4.

Remove wheel hub bearing from spindle.

Brake hose does not need to be disconnected from brake
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.

SRA712A

INSTALLATION

NCAX0030

I

Install wheel hub bearing.

I

Tighten wheel bearing lock nut.
Before tightening, apply oil to threaded portion of rear spindle
and both sides of plain washer.

: 186 - 255 N·m (19 - 26 kg-m, 137 - 188 ft-lb)

I

Check that wheel bearings operate smoothly.

SRA690A

I

Check wheel hub bearing axial end play.

Axial end play:

0.05 mm (0.0020 in) or less

Service Data and Specifications (SDS)

WHEEL BEARING (REAR)

NCAX0031

Wheel bearing axial end play

mm (in)

0.05 (0.0020) or less

Wheel bearing lock nut tightening torque

N·m (kg-m, ft-lb)

186 - 255 (19 - 26, 137 - 188)

REAR AXLE

Wheel Hub (Cont’d)

AX-22

BRAKE SYSTEM

SECTION

BR

CONTENTS

PRECAUTIONS ...............................................................3

Supplemental Restraint System (SRS)

AIR

BAG

and

SEAT BELT PRE-TENSIONER

...............3

Precautions for Brake System.....................................3
Wiring Diagrams and Trouble Diagnosis.....................4

PREPARATION ...............................................................5

Commercial Service Tools ...........................................5

NOISE, VIBRATION AND HARSHNESS (NVH)
TROUBLESHOOTING 
.....................................................6

NVH Troubleshooting Chart.........................................6

ON-VEHICLE SERVICE ..................................................7

Checking Brake Fluid Level.........................................7
Checking Brake Line ...................................................7
Changing Brake Fluid ..................................................7
Brake Burnishing Procedure........................................7
Bleeding Brake System ...............................................8

BRAKE HYDRAULIC LINE .............................................9

Hydraulic Circuit...........................................................9
Removal.......................................................................9
Inspection.....................................................................9
Installation..................................................................10

DUAL PROPORTIONING VALVE................................. 11

Inspection................................................................... 11

BRAKE PEDAL AND BRACKET..................................12

Removal and Installation ...........................................12
Inspection...................................................................12
Adjustment .................................................................12

MASTER CYLINDER.....................................................14

Removal.....................................................................14
Disassembly...............................................................14
Inspection...................................................................15
Assembly ...................................................................15
Installation..................................................................16

BRAKE BOOSTER........................................................17

On-vehicle Service.....................................................17

OPERATING CHECK

...............................................17

AIRTIGHT CHECK

...................................................17

Removal.....................................................................17
Inspection...................................................................17

OUTPUT ROD LENGTH CHECK

..............................17

Installation..................................................................18

VACUUM HOSE.............................................................19

Removal and Installation ...........................................19
Inspection...................................................................19

HOSES AND CONNECTORS

...................................19

CHECK VALVE

........................................................19

FRONT DISC BRAKE ...................................................20

Component ................................................................20
Pad Replacement ......................................................20
Removal.....................................................................21
Disassembly...............................................................21
Inspection...................................................................21

CALIPER

.................................................................21

ROTOR

...................................................................22

Assembly ...................................................................23
Installation..................................................................23

REAR DISC BRAKE......................................................24

Component ................................................................24
Pad Replacement ......................................................24
Removal.....................................................................26
Disassembly...............................................................27
Inspection...................................................................28

CALIPER

.................................................................28

ROTOR

...................................................................28

Assembly ...................................................................29
Installation..................................................................31

PARKING BRAKE CONTROL ......................................32

Components...............................................................32
Removal and Installation ...........................................32
Inspection...................................................................33
Adjustment .................................................................33

ABS

DESCRIPTION ...............................................................34

Purpose......................................................................34
ABS (Anti-Lock Brake System) Operation ................34
ABS Hydraulic Circuit ................................................34
System Components .................................................35

GI

MA

EM

LC

EC

FE

CL

MT

AT

AX

SU

ST

RS

BT

HA

SC

EL

IDX

System Description....................................................35

SENSOR

.................................................................35

CONTROL UNIT

......................................................35

ABS ACTUATOR AND ELECTRIC UNIT

....................35

Component Parts and Harness Connector
Location 
.....................................................................37
Schematic ..................................................................38
Wiring Diagram - ABS - .............................................39

ON BOARD DIAGNOSTIC SYSTEM
DESCRIPTION 
...............................................................42

Self-diagnosis ............................................................42

FUNCTION

..............................................................42

SELF-DIAGNOSIS PROCEDURE

..............................42

HOW TO READ SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)

........................................42

HOW TO ERASE SELF-DIAGNOSTIC RESULTS
(MALFUNCTION CODES)

........................................43

CONSULT-II ...............................................................44

CONSULT-II APPLICATION TO ABS

..........................44

ECU (ABS CONTROL UNIT) PART NUMBER
MODE

.....................................................................44

CONSULT-II Inspection Procedure............................44

SELF-DIAGNOSIS PROCEDURE

..............................44

SELF-DIAGNOSTIC RESULTS MODE

.......................46

DATA MONITOR PROCEDURE

................................47

ACTIVE TEST PROCEDURE

....................................48

DATA MONITOR MODE

...........................................49

ACTIVE TEST MODE

...............................................49

TROUBLE DIAGNOSIS - INTRODUCTION..................50

How to Perform Trouble Diagnoses for Quick
and Accurate Repair 
..................................................50

INTRODUCTION

......................................................50

TROUBLE DIAGNOSIS - BASIC INSPECTION ...........51

Preliminary Check......................................................51
Ground Circuit Check ................................................54

ABS ACTUATOR AND ELECTRIC UNIT GROUND

.....54

TROUBLE DIAGNOSIS - GENERAL
DESCRIPTION 
...............................................................55

Malfunction Code/Symptom Chart.............................55

TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC
ITEMS
.............................................................................
56

Wheel Sensor or Rotor..............................................56

DIAGNOSTIC PROCEDURE

.....................................56

ABS Actuator Solenoid Valve or Solenoid Valve
Relay
..........................................................................59

DIAGNOSTIC PROCEDURE

.....................................59

Motor Relay or Motor.................................................62

DIAGNOSTIC PROCEDURE

.....................................62

Low Voltage ...............................................................64

DIAGNOSTIC PROCEDURE

.....................................64

Control Unit................................................................66

DIAGNOSTIC PROCEDURE

.....................................66

TROUBLE DIAGNOSES FOR SYMPTOMS .................67

1. ABS Works Frequently ..........................................67
2. Unexpected Pedal Action ......................................67
3. Long Stopping Distance ........................................68
4. ABS Does Not Work..............................................69
5. Pedal Vibration and Noise.....................................70
6. ABS Warning Lamp Does Not Come On
When Ignition Switch Is Turned On
...........................71
7. ABS Warning Lamp Stays On When Ignition
Switch Is Turned On 
..................................................73

REMOVAL AND INSTALLATION .................................75

Front Wheel Sensors.................................................75
Rear Wheel Sensors .................................................76
ABS Actuator and Electric Unit..................................77

REMOVAL

...............................................................77

INSTALLATION

........................................................77

Sensor Rotor..............................................................78

REMOVAL

...............................................................78

INSTALLATION

........................................................78

SERVICE DATA AND SPECIFICATIONS (SDS) .........79

General Specifications...............................................79
Disc Brake .................................................................79
Brake Pedal ...............................................................79
Parking Brake ............................................................79

CONTENTS

(Cont’d)

BR-2

 

 

 

 

 

 

 

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