Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Pathfinder 1999-2003 Approved Nissan Pathfinder 2003 br
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GI
BRAKE SYSTEM
MA
SECTION BR EM
LC
EC
FE
CONTENTS CL
PRECAUTIONS ...............................................................4 Installation..................................................................18
MT
Supplemental Restraint System (SRS) AIR BRAKE BOOSTER........................................................19
BAG and SEAT BELT PRE-TENSIONER...............4 On-vehicle Service.....................................................19
Precautions for SRS Air Bag and SEAT BELT OPERATING CHECK ...............................................19 AT
PRE-TENSIONER Service.........................................4 AIRTIGHT CHECK ...................................................19
Precautions for Brake System.....................................4 Removal.....................................................................19
Wiring Diagrams and Trouble Diagnoses....................5 Inspection...................................................................19 TF
PREPARATION ...............................................................6 OUTPUT ROD LENGTH CHECK ..............................19
Special Service Tools ..................................................6 Installation..................................................................20
Commercial Service Tools ...........................................6 VACUUM PIPING...........................................................21 PD
NOISE, VIBRATION AND HARSHNESS (NVH) Vacuum Hose ............................................................21
TROUBLESHOOTING .....................................................7 Removal and Installation ...........................................21
Inspection...................................................................21
AX
NVH Troubleshooting Chart.........................................7
ON-VEHICLE SERVICE ..................................................8 HOSES AND CONNECTORS ...................................21
CHECK VALVE ........................................................21 SU
Checking Brake Fluid Level.........................................8
FRONT DISC BRAKE ...................................................22
Checking Brake Line ...................................................8
Components...............................................................22
Changing Brake Fluid ..................................................8
Pad Replacement ......................................................22
Bleeding Brake System ...............................................9
Removal.....................................................................23
BRAKE HYDRAULIC LINE ...........................................10
Disassembly...............................................................24
Hydraulic Circuit.........................................................10 ST
Inspection...................................................................24
Removal.....................................................................11
CALIPER .................................................................24
Inspection...................................................................11
ROTOR ...................................................................24
Installation..................................................................11
Assembly ...................................................................25 RS
PROPORTIONING VALVE ............................................12
Installation..................................................................25
Inspection...................................................................12
Brake Burnishing Procedure......................................25 BT
Removal and Installation ...........................................12
REAR DRUM BRAKE ...................................................26
BRAKE PEDAL AND BRACKET..................................13
Components...............................................................26
Removal and Installation ...........................................13
Inspection...................................................................13
Removal.....................................................................26 HA
Inspection...................................................................27
Adjustment .................................................................13
WHEEL CYLINDER ..................................................27
MASTER CYLINDER.....................................................15 Wheel Cylinder Overhaul...........................................28 SC
Removal.....................................................................15 Inspection...................................................................28
Disassembly...............................................................16 DRUM .....................................................................28
MODELS WITHOUT VDC .........................................16 LINING ....................................................................28
EL
MODELS WITH VDC ................................................16 Installation..................................................................28
Inspection...................................................................16 PARKING BRAKE CONTROL ......................................30
Assembly ...................................................................17 IDX
Components...............................................................30
MODELS WITHOUT VDC .........................................17
Removal and Installation ...........................................30
MODELS WITH VDC ................................................17
CONTENTS (Cont'd)
Inspection...................................................................30 DIAGNOSTIC PROCEDURE .....................................56
Adjustment .................................................................31 ABS Actuator Solenoid Valve or Solenoid Valve
Relay..........................................................................59
ABS DIAGNOSTIC PROCEDURE .....................................59
Motor Relay or Motor.................................................61
DESCRIPTION ...............................................................32 DIAGNOSTIC PROCEDURE .....................................61
Purpose......................................................................32 Low Voltage ...............................................................63
Operation ...................................................................32 DIAGNOSTIC PROCEDURE .....................................63
ABS Hydraulic Circuit ................................................32 G Sensor and Circuit .................................................65
System Components .................................................33 DIAGNOSTIC PROCEDURE .....................................65
System Description....................................................33 Control Unit................................................................67
SENSOR .................................................................33 DIAGNOSTIC PROCEDURE .....................................67
CONTROL UNIT (BUILT-IN ABS ACTUATOR AND TROUBLE DIAGNOSES FOR SYMPTOMS .................68
ELECTRIC UNIT) .....................................................33 1. ABS Works Frequently ..........................................68
ABS ACTUATOR AND ELECTRIC UNIT ....................33 2. Unexpected Pedal Action ......................................68
G SENSOR (4WD MODELS ONLY) ..........................34 3. Long Stopping Distance ........................................70
Component Parts and Harness Connector 4. ABS Does Not Work..............................................70
Location .....................................................................35 5. Pedal Vibration and Noise.....................................71
Schematic ..................................................................36 6. Warning Lamp Does Not Come On When
Wiring Diagram - ABS - .............................................37 Ignition Switch Is Turned On .....................................72
ON BOARD DIAGNOSTIC SYSTEM 7. Warning Lamp Stays On When Ignition Switch
DESCRIPTION ...............................................................41 Is Turned On..............................................................74
Self-diagnosis ............................................................41 8. Vehicle Vibrates Excessively When ABS Is
FUNCTION ..............................................................41 Operating ...................................................................77
SELF-DIAGNOSIS PROCEDURE ..............................41
REMOVAL AND INSTALLATION .................................80
HOW TO READ SELF-DIAGNOSTIC RESULTS
Front Wheel Sensor...................................................80
(MALFUNCTION CODES) ........................................42
HOW TO ERASE SELF-DIAGNOSTIC RESULTS
Rear Wheel Sensor ...................................................80
(MALFUNCTION CODES) ........................................42 Front Sensor Rotor ....................................................81
CONSULT-II ...............................................................43 REMOVAL ...............................................................81
CONSULT-II APPLICATION TO ABS..........................43 INSTALLATION........................................................81
ECU (ABS CONTROL UNIT) PART NUMBER Rear Sensor Rotor.....................................................81
MODE .....................................................................43 REMOVAL ...............................................................81
CONSULT-II Inspection Procedure............................44 INSTALLATION........................................................81
SELF-DIAGNOSIS PROCEDURE ..............................44 G Sensor....................................................................81
SELF-DIAGNOSTIC RESULTS MODE.......................45 ABS Actuator and Electric Unit..................................82
DATA MONITOR PROCEDURE ................................46 REMOVAL ...............................................................82
ACTIVE TEST PROCEDURE ....................................47 INSTALLATION........................................................82
DATA MONITOR MODE ...........................................48
ACTIVE TEST MODE ...............................................48 VDC/TCS/ABS
TROUBLE DIAGNOSIS - INTRODUCTION..................49
How to Perform Trouble Diagnoses for Quick PRECAUTIONS .............................................................83
and Accurate Repair ..................................................49 Supplemental Restraint System (SRS) AIR
INTRODUCTION ......................................................49 BAG and SEAT BELT PRE-TENSIONER.............83
TROUBLE DIAGNOSIS - BASIC INSPECTION ...........50 Precautions for SRS Air Bag and SEAT BELT
Preliminary Check......................................................50 PRE-TENSIONER Service.......................................83
Ground Circuit Check ................................................53 Precautions for Brake System...................................83
ABS ACTUATOR AND ELECTRIC UNIT GROUND.....53 Precautions for Brake Control ...................................84
TROUBLE DIAGNOSIS - GENERAL Diagnosis Precaution.................................................84
DESCRIPTION ...............................................................54 CAN SYSTEM .........................................................84
Malfunction Code/Symptom Chart.............................54 Precaution for Harness Repair ..................................84
TROUBLE DIAGNOSES FOR SELF-DIAGNOSTIC CAN SYSTEM .........................................................84
ITEMS.............................................................................56 PREPARATION .............................................................86
Wheel Sensor or Rotor..............................................56 Commercial Service Tools .........................................86
ON-VEHICLE SERVICE ................................................87
BR-2
CONTENTS (Cont'd) GI
Adjustment of Steering Angle Sensor Neutral Inspection 7 Solenoid Valve, VDC Switch-over
Position ......................................................................87 Solenoid Valve and Circuit ......................................126 MA
Calibration of Decel G Sensor...................................87 Inspection 8 ABS Actuator Relay or ABS Motor
GENERAL INFORMATION ...........................................89 Relay Power System ...............................................128
Fail-Safe.....................................................................89 Inspection 9 Stop Lamp Switch and Circuit ............129 EM
ABS SYSTEM ..........................................................89 Inspection 10 ABS Actuator and Electric Unit
VDC/TCS SYSTEM ..................................................89 (Control Unit) Power Circuit.....................................130
Hydraulic Circuit Diagram..........................................89 Inspection 11 When SHIFT POSITION ERROR
LC
ABS Function.............................................................89 Appears in Self-Diagnosis Results Display .............132
TCS Function.............................................................90 Inspection 12 When ST ANG SEN COM CIR EC
VDC Function ............................................................90 Appears on Self-Diagnosis Results Display............133
System Diagram ........................................................90 Inspection 13 Brake Fluid Level of Reservoir
CAN COMMUNICATION ...............................................91 Tank .........................................................................133 FE
System Description....................................................91 Inspection 14 CAN Communications System .........134
CAN Communication Unit..........................................91 Inspecting Components ...........................................134
TYPE 1 (ALL-MODE 4WD MODELS) .........................91 VDC OFF SWITCH ................................................134
CL
TYPE 2 (EXCEPT ALL-MODE 4WD MODELS) ...........93 Symptom 1 ABS Works Frequently. ........................135
TROUBLE DIAGNOSES................................................94 Symptom 2 Unexpected Pedal Reaction ................135
How to Proceed with Diagnosis ................................94 MT
Symptom 3 Long Stopping Distance.......................136
BASIC CONCEPT ....................................................94 Symptom 4 ABS Does Not Work. ...........................137
DIAGNOSIS FLOWCHART .......................................95
ASKING COMPLAINTS ............................................96
Symptom 5 Pedal Vibration and Noise ...................137 AT
Symptom 6 VDC OFF Indicator Lamp Does Not
EXAMPLE OF DIAGNOSIS SHEET ...........................96
Illuminate..................................................................138
Component Installation Location ...............................97 TF
Symptom 7 SLIP Indicator Lamp Does Not
Schematic ..................................................................98
Illuminate..................................................................139
Wiring Diagram - VDC - ............................................99
Symptom 8 Vehicle Behaves Jerkily During VDC/
Control Unit Input/Output Signal Standard..............104
TCS/ABS Operation.................................................140
PD
STANDARDS BY CONSULT-II ................................104
CONSULT-II Functions ............................................106 WHEEL SENSORS......................................................142
CONSULT-II MAIN FUNCTION ................................106 Removal and Installation .........................................142 AX
SELF-DIAGNOSIS .................................................108 REMOVAL .............................................................142
DATA MONITOR.................................................... 111 INSTALLATION......................................................142
ACTIVE TEST ........................................................114 SENSOR ROTOR ........................................................144 SU
For Fast and Accurate Diagnosis ............................116 Removal and Installation .........................................144
PRECAUTIONS FOR DIAGNOSIS ..........................116 REMOVAL .............................................................144
Basic Inspection.......................................................118 INSTALLATION......................................................144
BASIC INSPECTION 1: BRAKE FLUID LEVEL VDC/TCS/ABS ACTUATOR........................................145
AND LEAK INSPECTION........................................118 Removal and Installation .........................................145
BASIC INSPECTION 2: INSPECTION FOR G SENSOR ..................................................................146 ST
LOOSENESS OF POWER SYSTEM TERMINALS ....118 Removal and Installation .........................................146
BASIC INSPECTION 3: INSPECTION OF ABS REMOVAL .............................................................146
RS
WARNING LAMP, VDC OFF INDICATOR LAMP INSTALLATION......................................................146
AND SLIP INDICATOR LAMP .................................118
Inspection 1 Wheel Sensor System ........................119 SERVICE DATA AND SPECIFICATIONS (SDS) .......147 BT
INSPECTION PROCEDURE ...................................119 General Specifications.............................................147
Inspection 2 Engine System....................................121 Disc Brake ...............................................................147
Inspection 3 VDC/TCS/ABS Control Unit System...121 Drum Brake..............................................................147 HA
Inspection 4 VDC Pressure Sensor System ...........122 Brake Pedal .............................................................147
Inspection 5 Steering Angle Sensor System...........123 Parking Brake Control .............................................148
Inspection 6 Yaw Rate/Side/Decel G Sensor SC
System .....................................................................124
EL
IDX
BR-3
PRECAUTIONS
Supplemental Restraint System (SRS) "AIR BAG" and "SEAT BELT PRE-TENSIONER"
Supplemental Restraint System (SRS) "AIR
BAG" and "SEAT BELT PRE-TENSIONER" NABR0206
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER" used along with
a seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain types of
collision. The SRS composition which is available to NISSAN MODEL R50 is as follows (The composition
varies according to optional equipment.):
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