Index Infiniti Infiniti Q45 - service repair manual 2006 year
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Content .. 257 258 259 260 ..
Infiniti Q45. Manual - part 259
BRC-1
BRAKE CONTROL SYSTEM
F BRAKES
CONTENTS
C
D
E
G
H
I
J
K
L
M
SECTION
BRC
A
B
VDC/TCS/ABS
PRECAUTIONS .......................................................... 3
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT BELT PRE-TEN-SIONER” .................................................................. 3Precautions for Brake System .................................. 3Precautions for Brake Control .................................. 3
PREPARATION ........................................................... 5
Special Service Tools ............................................... 5Commercial Service Tools ........................................ 5
ON-VEHICLE SERVICE ............................................. 6
Adjustment of Steering Angle Sensor Neutral Posi-tion ........................................................................... 6
SYSTEM DESCRIPTION ............................................ 7
System Diagram ....................................................... 7
COMPONENTS FUNCTION DESCRIPTION ....... 7
Functions .................................................................. 7
VDC ....................................................................... 7TCS ....................................................................... 8ABS ....................................................................... 8EBD ....................................................................... 8
Operation that is not “System Error” ........................ 8
VDC ....................................................................... 8TCS ....................................................................... 8ABS ....................................................................... 8
Hydraulic Circuit Diagram ........................................ 9CAN Communication ................................................ 9
SYSTEM DESCRIPTION ...................................... 9
TROUBLE DIAGNOSIS ............................................ 10
Fail-Safe Function .................................................. 10
VDC/TCS SYSTEM ............................................. 10ABS, EBD SYSTEM ............................................ 10
How to Perform Trouble Diagnosis For Quick and Accurate Repair ..................................................... 10
INTRODUCTION ................................................. 10DIAGNOSIS FLOW CHART ................................11ASKING COMPLAINTS ...................................... 12EXAMPLE OF DIAGNOSIS SHEET ................... 12
Component Installation Location ............................ 13Schematic .............................................................. 14
Wiring Diagram — VDC — ..................................... 15Control Unit Input/Output Signal Standard ............. 22
VDC/TCS/ABS CONTROL UNIT INSPECTION TABLE ................................................................. 22
CONSULT-II Functions (VDC) ................................ 23
CONSULT-II MAIN FUNCTION ........................... 23CONSULT-II SETTING PROCEDURE ................ 24SELF-DIAG RESULT MODE ............................... 24DATA MONITOR MODE ...................................... 27ACTIVE TEST ..................................................... 30VDC/TCS/ABS CONTROL UNIT PART NUM-BER ..................................................................... 32
Trouble Diagnosis Chart for Symptoms .................. 32For Fast and Accurate Diagnosis ........................... 34
PRECAUTIONS FOR DIAGNOSIS ..................... 34
Basic Inspection ..................................................... 34
BRAKE FLUID LEVEL, LEAKAGE AND BRAKE PAD ..................................................................... 34POWER SUPPLY CIRCUIT TERMINAL LOOSE-NESS AND BATTERY ......................................... 35ABS WARNING LAMP, VDC OFF INDICATOR LAMP, AND SLIP INDICATOR LAMP ................. 35
TROUBLE DIAGNOSIS FOR SYSTEM .................... 36
Wheel Sensor ......................................................... 36
INSPECTION PROCEDURE .............................. 36
Engine System Control Signal ................................ 38
INSPECTION PROCEDURE .............................. 38
VDC/TCS/ABS Control Unit .................................... 38
Pressure Sensor ..................................................... 39
INSPECTION PROCEDURE .............................. 39
Steering Angle Sensor ............................................ 40
INSPECTION PROCEDURE .............................. 40
Yaw Rate/Side G Sensor ........................................ 42
INSPECTION PROCEDURE .............................. 42
Solenoid and VDC Switching Valve ........................ 44
INSPECTION PROCEDURE .............................. 44
Actuator Motor and Motor Relay ............................. 46
INSPECTION PROCEDURE .............................. 46
Actuator Relay ........................................................ 48