Service Manuals, User Guides, Schematic Diagrams or docs for : . Car Manuals Nissan Micra 2003-2006 Approved 05k12e BRC
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BRAKE CONTROL SYSTEM
F BRAKES
A
SECTION
BRAKE CONTROL SYSTEM
BRC B
C
D
E
CONTENTS
ABS CAN Communication ............................................. 29 . BRC
SYSTEM DESCRIPTION ................................... 29 .
PRECAUTIONS ......................................................... 3
. CAN Communication Unit ...................................... 29 .
Precautions for Supplemental Restraint System TYPE 1/TYPE 2 .................................................. 30 . G
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- TYPE 3/TYPE 4/TYPE 5/TYPE 6 ....................... 33 .
SIONER" ................................................................. 3
. TYPE 13/TYPE 14 .............................................. 35 .
Precautions for Brake System ................................. 3 . For Fast and Accurate Diagnosis .......................... 37 .
Precautions for Brake Control ................................. 3 . H
PRECAUTIONS FOR TROUBLE DIAGNOSIS ... 37
Precaution for Harness Repair ................................ 4 . Basic Inspection .................................................... 37.
CAN SYSTEM ...................................................... 4
. BASIC INSPECTION 1: BRAKE FLUID LEVEL,
PREPARATION .......................................................... 5
. LEAK AND BRAKE PAD INSPECTION ............. 37 . I
Special Service Tools .............................................. 5
. BASIC INSPECTION 2: INSPECTION OF
SYSTEM DESCRIPTION ........................................... 6 . POWER SUPPLY SYSTEM TERMINAL LOOSE-
System Diagram ...................................................... 6
. NESS AND BATTERY ........................................ 37 . J
System Components ............................................... 6 . BASIC INSPECTION 3: ABS WARNING LAMP
ABS Function .......................................................... 7
. AND BRAKE WARNING LAMP INSPECTION ... 37
EBD Function .......................................................... 7
. Inspection 1 Wheel Sensor System ....................... 38 .
Fail-Safe Function ................................................... 7
. K
INSPECTION PROCEDURE ............................. 38 .
Hydraulic Circuit Diagram ....................................... 7 . Inspection 2 ABS Actuator and Electric Unit Power
TROUBLE DIAGNOSIS ............................................. 8 . and Ground System ............................................... 39 .
Diagnosis Procedure ............................................... 8
. INSPECTION PROCEDURE ............................. 39 . L
BASIC CONCEPT ................................................ 8 . Inspection 3 ABS Control Unit System .................. 40 .
DIAGNOSIS FLOW .............................................. 9 . Inspection 4 ABS Actuator Relay or ABS Motor
QUESTIONNAIRE ............................................. 10 . Relay Power System ............................................. 40 . M
EXAMPLE OF DIAGNOSIS SHEET .................. 10 . Inspection 5 CAN Communication System ............ 41 .
Component Parts Location .....................................11 . INSPECTION PROCEDURE ............................. 41 .
Schematic/Models with CR and HR Engine .......... 12 . Inspection 6 Stop Lamp Switch System ................ 42 .
Wiring Diagram -- ABS -- Models with CR and INSPECTION PROCEDURE ............................. 42 .
HR16 Engine ......................................................... 13
. Symptom 1 ABS Works Frequently. ...................... 42 .
Schematic/Models with K9K Engine ..................... 16 . Symptom 2 Unexpected Pedal Reaction ............... 43 .
Wiring Diagram -- ABS -- Models with K9K Engine 17 ... Symptom 3 Longer Stopping Distance .................. 44 .
Control Unit Input/Output Signal Standard ............ 21 . Symptom 4 ABS Does Not Work ........................... 44 .
STANDARDS BY CONSULT-II ........................... 21 . Symptom 5 Pedal Vibration and ABS Operation
CONSULT-II Functions .......................................... 22 . Noise ..................................................................... 44
.
CONSULT-II FUNCTION APPLICATION TABLE 22 ... WHEEL SENSORS .................................................. 45 .
CONSULT-IIBASICOPERATIONPROCEDURE Removal and Installation ....................................... 45 .
... 23 REMOVAL .......................................................... 45 .
SELF-DIAGNOSIS ............................................. 24 . INSTALLATION .................................................. 45 .
DATA MONITOR ................................................ 26 .
ACTIVE TEST .................................................... 27
.
BRC-1
SENSOR ROTOR ..................................................... 46 . CONSULT-IIBASICOPERATIONPROCEDURE
Removal and Installation ....................................... 46 . ...75
FRONT ............................................................... 46
. SELF-DIAGNOSIS ..............................................75 .
REAR .................................................................. 46
. DATA MONITOR .................................................77 .
ACTUATOR AND ELECTRIC UNIT (ASSEMBLY)... 47 ACTIVE TEST .....................................................81 .
Removal and Installation ....................................... 47 . For Fast and Accurate Diagnosis ...........................83 .
REMOVAL .......................................................... 47
. PRECAUTIONS FOR DIAGNOSIS ....................83 .
INSTALLATION ................................................... 47 . Basic Inspection .....................................................84.
BASIC INSPECTION 1: BRAKE FLUID
ESP/TCS/ABS AMOUNT, LEAKS, AND BRAKE PADS INSPEC-
TION ...................................................................84
.
PRECAUTIONS ........................................................ 48 . BASIC INSPECTION 2: POWER SYSTEM TER-
Precautions for Supplemental Restraint System MINAL LOOSENESS AND BATTERY INSPEC-
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN- TION ...................................................................84
.
SIONER" ................................................................ 48. BASIC INSPECTION 3: ABS WARNING LAMP,
Precautions for Brake System ............................... 48 . ESP OFF INDICATOR LAMP AND SLIP INDI-
Precautions for Brake Control ............................... 48 . CATOR LAMP INSPECTION ..............................85 .
Diagnosis Precaution ............................................. 49 . Inspection 1: Wheel Sensor System ......................85 .
CAN SYSTEM .................................................... 49 . Inspection 2: Engine System .................................88 .
Precaution for Harness Repair .............................. 49 . Inspection 3: ESP/TCS/ABS Control Unit System...89
CAN SYSTEM .................................................... 49 . Inspection 4: Steering Angle Sensor System .........89 .
PREPARATION ........................................................ 50 . Inspection 5: Yaw Rate/Side G-Sensor System .....90 .
Special Service Tools ............................................ 50 . Inspection 6: ABS Actuator and Electric Unit (Con-
ON-VEHICLE SERVICE ........................................... 51 . trol Unit) Power Supply and Ground System .........92 .
Adjustment of Steering Angle Sensor Neutral Posi- Inspection 7: Stop Lamp Switch System ................94 .
tion ......................................................................... 51
. Inspection 8: Brake Fluid Level Switch System .....96 .
OPERATION PROCEDURE ............................... 51 . Inspection 9: CAN Communication System ...........96 .
SYSTEM DESCRIPTION ......................................... 52 . Component Inspection ...........................................97 .
System Diagram .................................................... 52 . ESP OFF SWITCH .............................................97 .
ESP Function ......................................................... 52 . Symptom 1: Excessive ABS Function Operation
TCS Function ......................................................... 52 . Frequency ..............................................................97
.
ABS Function ......................................................... 52 . Symptom 2: Unexpected Pedal Reaction ..............98 .
EBD Function ........................................................ 53 . Symptom 3: The Braking Distance Is Long ............98 .
Fail-Safe Function ................................................. 53 . Symptom 4: The ABS Function Does Not Operate...99
ESP / TCS SYSTEM .......................................... 53 . Symptom 5: Pedal Vibration or ABS Operation
ABS, EBD SYSTEM ........................................... 53 . Sound Occurs ........................................................99 .
Hydraulic Circuit Diagram ...................................... 54 . Symptom 6: Vehicle Jerks During ESP/TCS/ABS
CAN COMMUNICATION .......................................... 55 . Control ...................................................................99
.
System Description ................................................ 55 . WHEEL SENSORS ................................................ 101 .
CAN Communication Unit ...................................... 55 . Removal and Installation ...................................... 101 .
TYPE 7/TYPE 8 .................................................. 56 . REMOVAL ......................................................... 101 .
TYPE 9/TYPE 10/TYPE 11/TYPE 12 ................. 59 . INSTALLATION ................................................. 101 .
TROUBLE DIAGNOSIS ........................................... 61 . SENSOR ROTOR ................................................... 102 .
How to Proceed With Diagnosis ............................ 61 . Removal and Installation ...................................... 102 .
BASIC CONCEPT .............................................. 61 . FRONT .............................................................. 102
.
DIAGNOSIS FLOWCHART ................................ 62 . REAR ................................................................ 102
.
ASKING COMPLAINTS ...................................... 63 . ACTUATOR AND ELECTRIC UNIT (ASSEMBLY) .103
EXAMPLE OF DIAGNOSIS SHEET ................... 63 . Removal and Installation ...................................... 103 .
Component Installation Location ........................... 64 . REMOVAL ......................................................... 103 .
Schematic .............................................................. 65. INSTALLATION ................................................. 103 .
Wiring Diagram -- ESP -- .................................... 66 . YAW RATE/SIDE G SENSOR ................................ 104 .
Control Unit Input/Output Signal Standard ............. 71 . Removal and Installation ...................................... 104 .
REFERENCE VALUE FROM CONSULT-II ........ 71 . REMOVAL ......................................................... 104 .
CONSULT-II Functions .......................................... 74 . INSTALLATION ................................................. 104 .
CONSULT-II FUNCTION APPLICATION TABLE STEERING ANGLE SENSOR ................................ 105 .
(MAIN ITEMS) .................................................... 74 . Removal and Installation ...................................... 105 .
BRC-2
PRECAUTIONS
[ABS]
PRECAUTIONS
[ABS] PFP:00001
A
Precautions for Supplemental Restraint System (SRS) "AIR BAG" and "SEAT
BELT PRE-TENSIONER" EFS004LN
The Supplemental Restraint System such as "AIR BAG" and "SEAT BELT PRE-TENSIONER", used along B
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. C
WARNING:
q 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. D
q 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. E
q 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. BRC
Precautions for Brake System EFS004LO
q Recommended fluid is brake fluid "DOT 3" or "DOT 4". G
q Do not reuse the drained brake fluid.
q 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. H
q Do not use mineral oils such as gasoline or kerosene to clean. They will ruin rubber parts and cause
improper operation.
q Using a flare nut torque wrench, securely tighten brake tube I
flare nuts.
q Brake system is an important safety part. If a brake fluid leak is
detected, always disassemble malfunctioning parts. If any mal- J
functioning part is found, replace the part with a new one.
q Before working, turn ignition switch OFF and disconnect con-
nectors for ABS actuator and electric unit or battery terminals.
K
q When installing brake piping, be sure to check tightening torque.
SBR820BA L
Precautions for Brake Control EFS004LP
q During ABS operation, brake pedal lightly vibrates and a mechanical noise may be heard. This is normal. M
q 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.
q Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel,
or snow-covered (fresh, deep snow) roads.
q 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.
q 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.
q 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.
q If aftermarket parts (e.g. car stereo equipment, CD player) have been installed, check electrical harnesses
for pinches, open, and improper wiring.
BRC-3
PRECAUTIONS
[ABS]
Precaution for Harness Repair EFS005VW
CAN SYSTEM
q 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
q 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.)
PKIA0307E
BRC-4
PREPARATION
[ABS]
PREPARATION PFP:00002
A
Special Service Tools EFS004LQ
Tool number
Description
Tool name B
GG94310000 C
Removing and installing each brake
Flare nut torque wrench
piping
a: 10 mm (0.39 in)
D
NT406
E
BRC
G
H
I
J
K
L
M
BRC-5
SYSTEM DESCRIPTION
[ABS]
SYSTEM DESCRIPTION PFP:00000
System Diagram EFS004LR
SFIA1173E
System Components EFS004LS
SFIA1174E
BRC-6
SYSTEM DESCRIPTION
[ABS]
ABS Function EFS004LT
A
q Anti-lock Brake System monitors wheel rotation in braking and electronically controls braking force (brake
fluid pressure) to prevent wheel locking. Thus, it improves vehicle stability in abrupt braking and allows
driver to clear obstacles more easily.
q In the event of an electric system malfunction, the fail-safe function will operate, the vehicle will enter the B
ABS non-operation state, and ABS warning lamp will come on.
q CONSULT-II can be used to diagnose the electrical system.
C
EBD Function EFS004LU
q The electronically controlled braking force distribution unit detects the minute slips that occur in front and
rear wheels during braking and uses electronic control to control rear wheel braking force (brake hydraulic D
pressure) to suppress rear wheel slipping as much as possible to improve stability during braking.
q In the event an electrical system malfunction occurs, the fail-safe function will operate and EBD and ABS
will enter non-operational states, and ABS warning lamp and brake warning lamp will come on. E
q CONSULT-II can be used to diagnose the electrical system.
Fail-Safe Function EFS004LV
BRC
q If a malfunction occurs in ABS system, "ABS warning lamp" turns ON.
q If a malfunction occurs in EBD, brake warning lamp and ABS warning lamp turn ON.
Hydraulic Circuit Diagram EFS004LW
G
H
I
J
K
L
M
SBR984D
1. Inlet solenoid valve 2. Outlet solenoid valve 3. Reservoir
4. Pump 5. Motor 6. Inlet valve
7. Outlet valve 8. Bypass check valve 9. Damper
BRC-7
TROUBLE DIAGNOSIS
[ABS]
TROUBLE DIAGNOSIS PFP:00004
Diagnosis Procedure EFS004LX
BASIC CONCEPT
q The most important point in performing trouble diagnosis is to thoroughly understand the vehicle systems
(both control and mechanical).
q It is also important to clarify customer concerns before starting
the inspection.
First of all, reproduce the symptom, and understand it fully.
Ask the customer about his/her complaints carefully. In some
cases, it will be necessary to check the symptoms by driving the
vehicle with the customer.
CAUTION:
Customers are not professional. It is dangerous to make an
easy guess like "maybe the customer means that...," or
"maybe the customer mentions this symptom".
EFJ0028D
q It is essential to check symptoms right from the beginning in
order to repair a error completely.
For an intermittent error, it is important to reproduce the symp-
tom based on an interview with the customer and past exam-
ples. Do not perform an inspection on an ad hoc basis. Most
intermittent errors are caused by poor contacts. In this case, it
will be effective to shake the suspected harness or connector by
hand. When repairs are performed without any symptom diag-
nosis, no one can judge if the error has actually been eliminated.
q After completing trouble diagnosis, be sure to perform "erase
memory". Refer to BRC-24, "SELF-DIAGNOSIS" . SEF233G
q For an intermittent error, move the harness or harness connec-
tor by hand to check for poor contact or false open circuit.
q Always read the GI section to be aware of the general precautions. Refer to GI-4, "General Precautions" .
BRC-8
TROUBLE DIAGNOSIS
[ABS]
DIAGNOSIS FLOW
A
B
C
D
E
BRC
G
H
I
J
K
L
M
SFIA0953E
BRC-9
TROUBLE DIAGNOSIS
[ABS]
QUESTIONNAIRE
q Complaints against a malfunction vary depending on each per-
son. It is important to clarify the customer complaints.
q Ask the customer about what symptoms are present and under
what conditions. Use the information to reproduce the symptom
while driving.
q It is also important to use the diagnosis sheet so as not to miss
the information.
SBR339B
EXAMPLE OF DIAGNOSIS SHEET
SFIA0791E
BRC-10
TROUBLE DIAGNOSIS
[ABS]
Component Parts Location EFS004LY
A
B
C
D
E
BRC
G
H
I
J
K
L
M
SFIA1175E
BRC-11
TROUBLE DIAGNOSIS
[ABS]
Schematic/Models with CR and HR Engine EFS004LZ
MFWA0034E
BRC-12
TROUBLE DIAGNOSIS
[ABS]
Wiring Diagram -- ABS -- Models with CR and HR16 Engine EFS004M0
A
B
C
D
E
BRC
G
H
I
J
K
L
M
MFWA0141E
BRC-13
TROUBLE DIAGNOSIS
[ABS]
MFWA0018E
BRC-14
TROUBLE DIAGNOSIS
[ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
MFWA0126E
BRC-15
TROUBLE DIAGNOSIS
[ABS]
Schematic/Models with K9K Engine EFS006DS
MFWA0156E
BRC-16
TROUBLE DIAGNOSIS
[ABS]
Wiring Diagram -- ABS -- Models with K9K Engine EFS005YH
A
B
C
D
E
BRC
G
H
I
J
K
L
M
MFWA0153E
BRC-17
TROUBLE DIAGNOSIS
[ABS]
MFWA0157E
BRC-18
TROUBLE DIAGNOSIS
[ABS]
A
B
C
D
E
BRC
G
H
I
J
K
L
M
MFWA0154E
BRC-19
TROUBLE DIAGNOSIS
[ABS]
MFWA0155E
BRC-20
TROUBLE DIAGNOSIS
[ABS]
Control Unit Input/Output Signal Standard EFS004M1
STANDARDS BY CONSULT-II A
CAUTION:
The displayed item is the calculated data by the control unit, so it may indicate a normal value even if
an output circuit (harness) is open or shorted. B
Data monitor
Reference values Note: Error inspection
Monitor item Display content
Condition for normal opera- checklist C
tion
Vehicle stopped 0 (km/h)
FR LH SENSOR
Almost in accor- D
FR RH SENSOR BRC-38, "Inspection 1
Vehicle wheel speed dance with the
RR LH SENSOR While driving (Note 1) Wheel Sensor System"
RR RH SENSOR speedometer dis-
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