BRC_Układ hamulcowy_Elektryka.PDF

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BRAKE CONTROL SYSTEM
F BRAKES
SECTION BRC B
BRAKE CONTROL SYSTEM
C
D
E
CONTENTS
BRC
ABS
TEST ITEM —ABS SOLENOID VALVE— .......... 22
TEST ITEM —ABS MOTOR— ........................... 23
CAN Communication ............................................. 24
SYSTEM DESCRIPTION ................................... 24
For Fast and Accurate Diagnosis .......................... 25
PRECAUTIONS FOR TROUBLE DIAGNOSIS ... 25
Basic Inspection .................................................... 26
BASIC INSPECTION 1: BRAKE FLUID LEVEL,
LEAK AND BRAKE PAD INSPECTION ............. 26
BASIC INSPECTION 2: INSPECTION OF
POWER SUPPLY SYSTEM TERMINAL LOOSE-
NESS AND BATTERY ........................................ 26
BASIC INSPECTION 3: ABS WARNING LAMP
AND BRAKE WARNING LAMP INSPECTION ... 26
Inspection 1 Wheel Sensor System ....................... 27
Inspection 2 Engine System .................................. 29
Inspection 3 ABS Actuatorand ElectricUnit (Control
Unit) System .......................................................... 29
Inspection 4 ABS Actuator and Electric Unit Power
and Ground System ............................................... 29
Inspection 5 Stop Lamp Switch System ................ 31
Inspection 6 CAN Communication Circuit ............. 33
Symptom 1 ABS Works Frequently. ...................... 33
Symptom 2 Unexpected Pedal Reaction ............... 34
Symptom 3 Longer Stopping Distance .................. 34
Symptom 4 ABS Does Not Work ........................... 35
Symptom 5 Pedal Vibration and ABS Operation
Noise ..................................................................... 35
WHEEL SENSORS .................................................. 36
Removal and Installation ....................................... 36
REMOVAL .......................................................... 36
INSTALLATION .................................................. 36
SENSOR ROTOR .................................................... 37
Removal and Installation ....................................... 37
FRONT ............................................................... 37
REAR ................................................................. 37
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 38
Removal and Installation ....................................... 38
REMOVAL .......................................................... 38
INSTALLATION .................................................. 38
PRECAUTIONS ......................................................... 3
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” ................................................................. 3
Precautions for Brake System ................................. 3
Precautions for Brake Control ................................. 3
Precaution for Harness Repair ................................ 4
CAN SYSTEM ...................................................... 4
PREPARATION .......................................................... 5
Special Service Tools .............................................. 5
SYSTEM DESCRIPTION ........................................... 6
System Diagram ...................................................... 6
System Components ............................................... 6
ABS Function .......................................................... 7
EBD Function .......................................................... 7
Fail-Safe Function ................................................... 7
Hydraulic Circuit Diagram ....................................... 7
TROUBLE DIAGNOSIS ............................................. 8
Diagnosis Procedure ............................................... 8
BASIC CONCEPT ................................................ 8
DIAGNOSIS FLOW .............................................. 9
QUESTIONNAIRE ............................................. 10
EXAMPLE OF DIAGNOSIS SHEET .................. 10
Component Parts Location .....................................11
Schematic ............................................................. 12
Wiring Diagram — ABS — .................................... 13
CONSULT-II Functions (ABS) ............................... 19
CONSULT-II MAIN FUNCTION .......................... 19
CONSULT-IIBASICOPERATIONPROCEDURE
... 19
Self-Diagnosis ....................................................... 19
OPERATION PROCEDURE .............................. 19
ERASE MEMORY .............................................. 19
DISPLAY ITEM LIST .......................................... 20
Data Monitor .......................................................... 21
OPERATION PROCEDURE .............................. 21
DISPLAY ITEM LIST .......................................... 21
Active Test ............................................................. 22
OPERATION PROCEDURE .............................. 22
G
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BRC-1
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ESP/TCS/ABS
For Fast and Accurate Diagnosis ...........................68
PRECAUTIONS FOR DIAGNOSIS ....................68
Basic Inspection .....................................................69
BASIC INSPECTION 1: BRAKE FLUID
AMOUNT, LEAKS, AND BRAKE PADS INSPEC-
TION ...................................................................69
BASIC INSPECTION 2: POWER SYSTEM TER-
MINAL LOOSENESS AND BATTERY INSPEC-
TION ...................................................................69
BASIC INSPECTION 3: ABS WARNING LAMP,
ESP OFF INDICATOR LAMP AND SLIP INDI-
CATOR LAMP INSPECTION ..............................70
Inspection 1: Wheel Sensor System ......................70
Inspection 2: Engine System .................................73
Inspection 3: ESP/TCS/ABS Control Unit System...73
Inspection 4: Steering Angle Sensor System .........73
Inspection 5: Yaw Rate/Side G-Sensor System .....75
Inspection 6: ABS Actuator and Electric Unit (Con-
trol Unit) Power Supply and Ground System .........77
Inspection 7: Stop Lamp Switch System ................79
Inspection 8: Brake Fluid Level Switch System .....81
Inspection 9: CAN Communication System ...........81
Component Inspection ...........................................82
ESP OFF SWITCH .............................................82
Symptom 1: Excessive ABS Function Operation
Frequency ..............................................................82
Symptom 2: Unexpected Pedal Reaction ..............82
Symptom 3: The Braking Distance Is Long ............83
Symptom 4: The ABS Function Does Not Operate...83
Symptom 5: Pedal Vibration or ABS Operation
Sound Occurs ........................................................83
Symptom 6: Vehicle Jerks During ESP/TCS/ABS
Control ...................................................................84
WHEEL SENSORS ..................................................86
Removal and Installation ........................................86
REMOVAL ...........................................................86
INSTALLATION ...................................................86
SENSOR ROTOR .....................................................87
Removal and Installation ........................................87
FRONT ................................................................87
REAR ..................................................................87
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) ...88
Removal and Installation ........................................88
REMOVAL ...........................................................88
INSTALLATION ...................................................88
YAW RATE/SIDE G SENSOR ..................................89
Removal and Installation ........................................89
REMOVAL ...........................................................89
INSTALLATION ...................................................89
STEERING ANGLE SENSOR ..................................90
Removal and Installation ........................................90
REMOVAL ...........................................................90
INSTALLATION ...................................................90
PRECAUTIONS ........................................................ 39
Precautions for Supplemental Restraint System
(SRS)“AIRBAG”and“SEATBELTPRE-TEN-
SIONER” ................................................................ 39
Precautions for Brake System ............................... 39
Precautions for Brake Control ............................... 39
Diagnosis Precaution ............................................. 40
CAN SYSTEM .................................................... 40
Precaution for Harness Repair .............................. 40
CAN SYSTEM .................................................... 40
PREPARATION ........................................................ 41
Special Service Tools ............................................ 41
ON-VEHICLE SERVICE ........................................... 42
Adjustment of Steering Angle Sensor Neutral Posi-
tion ......................................................................... 42
OPERATION PROCEDURE ............................... 42
SYSTEM DESCRIPTION ......................................... 45
System Diagram .................................................... 45
ESP Function ......................................................... 45
TCS Function ......................................................... 45
ABS Function ......................................................... 45
EBD Function ........................................................ 46
Fail-Safe Function ................................................. 46
ESP / TCS SYSTEM .......................................... 46
ABS, EBD SYSTEM ........................................... 46
Hydraulic Circuit Diagram ...................................... 47
CAN COMMUNICATION .......................................... 48
System Description ................................................ 48
TROUBLE DIAGNOSIS ........................................... 49
How to Proceed With Diagnosis ............................ 49
BASIC CONCEPT .............................................. 49
DIAGNOSIS FLOWCHART ................................ 50
ASKING COMPLAINTS ...................................... 51
EXAMPLE OF DIAGNOSIS SHEET ................... 51
Component Installation Location ........................... 52
Schematic .............................................................. 53
Wiring Diagram — ESP — .................................... 54
CONSULT-II Functions (ABS) ................................ 62
CONSULT-II MAIN FUNCTION .......................... 62
CONSULT-IIBASICOPERATIONPROCEDURE
... 62
Self-Diagnosis ....................................................... 62
OPERATION PROCEDURE ............................... 62
ERASE MEMORY .............................................. 62
DISPLAY ITEM LIST .......................................... 63
Data Monitor .......................................................... 64
OPERATION PROCEDURE ............................... 64
DISPLAY ITEM LIST .......................................... 64
Active Test ............................................................. 66
OPERATION PROCEDURE ............................... 66
SOLENOID VALVE OPERATION CHART .......... 67
ABS MONITOR .................................................. 67
BRC-2
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PRECAUTIONS
[ABS]
PRECAUTIONS PFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
[ABS]
A
BFS0008Z
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
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.
WARNING:
l 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.
l 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.
l 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.
Precautions for Brake System
B
C
D
E
BRC
BFS00090
Recommended fluid is brake fluid “Nissan Genuine Brake Fluid or DOT 3 or DOT 4 (US FMVSS No.116)”.
l
G
Do not reuse the drained brake fluid.
l
Be careful not to splash brake fluid on painted areas such as body. If brake fluid is splashed, wipe it off
and flush area with water immediately.
l
H
Do not use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause
improper operation.
l
Using a flare nut torque wrench, securely tighten brake tube
flare nuts.
I
l
Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble malfunctioning parts. If any mal-
functioning part is found, replace the part with a new one.
l
J
Before working, turn ignition switch OFF and disconnect con-
nectors for ABS actuator and electric unit or battery terminals.
l
K
When installing brake piping, be sure to check tightening torque.
l
L
SBR820BA
Precautions for Brake Control
BFS00091
During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal.
l
M
When starting engine, or just after starting vehicle, brake pedal may vibrate or motor operating noise may
be heard from engine compartment. This is a normal status of operation check.
l
Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
l
When an error is indicated by ABS or another warning lamp, collect all necessary information from the
customer (what symptoms are present under what conditions) and check for simple causes before start-
ing diagnostic servicing. Besides the electrical system inspection, check booster operation, brake fluid
level, and oil leaks.
l
If tyre size and type are used in an improper combination, or brake pads are not Genuine Nissan parts,
stopping distance or steering stability may deteriorate.
l
If there is a radio, antenna, or antenna lead-in wire (including wiring) near the control unit, ABS system
may malfunction or return an error.
l
If aftermarket parts (e.g. car stereo equipment, CD player) have been installed, check electrical harnesses
for pinches, open, and improper wiring.
l
BRC-3
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PRECAUTIONS
[ABS]
Precaution for Harness Repair
BFS00092
CAN SYSTEM
l
Area to be repaired shall be soldered, and wrapped with a tape
(be sure that fraying of twisted wire shall be within 110 mm 4.33
in)).
PKIA0306E
Do not make a bypass connection to repaired area. (If it is done,
branch part will be removed and characteristics of twisted wire
will be lost.)
l
PKIA0307E
BRC-4
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PREPARATION
[ABS]
PREPARATION
PFP:00002
A
Special Service Tools
BFS00093
Tool number
Tool name
Description
B
C
GG94310000
Flare nut torque wrench
a: 10 mm (0.39 in)
Removing and installing each brake
piping
D
NT406
E
BRC
G
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BRC-5
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