2014 NISSAN TEANA diagram

BCS
COMBINATION SWITCH INPUT CIRCUITBCS-75
< DTC/CIRCUIT DIAGNOSIS > [BCM]
C
D E
F
G H
I
J
K L
B
A
O P
N
COMBINATION SWITCH
INPUT CIRCUIT
Diagnosis ProcedureINFOID:0000000009462041
Regarding Wiring Diagram information, refer to BCS-55, "Wiring Diagram".
1. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM connector M18 and combination switch connector.
3. Check continuity between BCM connecto r M18 and combination switch connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness or connectors.
2. CHECK INPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT
Check continuity between BCM connector M18 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3. CHECK BCM OUTPUT VOLTAGE
1. Connect BCM connector M18 and combination switch connector.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M18 and ground.
Signal BCM Combination switch
Continuity
Connector Terminal Connector Terminal
INPUT 1
M1879
M28 11
Ye s
INPUT 2 78 9
INPUT 3 77 7
INPUT 4 76 10
INPUT 5 75 13
Signal BCM
GroundContinuity
Connector Terminal
INPUT 1
M1879
No
INPUT 2 78
INPUT 3 77
INPUT 4 76
INPUT 5 75
Signal BCM
Ground Voltage
Connector Terminal
INPUT 1
M18 79
—Refer to
BCS-31, "Ref-
erence Value".
INPUT 2 78
INPUT 3 77
INPUT 4 76
INPUT 5 75
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BCS
COMBINATION SWITCH OUTPUT CIRCUITBCS-77
< DTC/CIRCUIT DIAGNOSIS > [BCM]
C
D E
F
G H
I
J
K L
B
A
O P
N
COMBINATION SWITCH
OUTPUT CIRCUIT
Diagnosis ProcedureINFOID:0000000009462042
Regarding Wiring Diagram information, refer to BCS-55, "Wiring Diagram".
1. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR OPEN
1. Turn ignition switch OFF.
2. Disconnect BCM connector M17 and combination switch connector.
3. Check continuity between BCM connecto r M17 and combination switch connector.
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace harness or connectors.
2. CHECK OUTPUT 1 - 5 SYSTEM CIRCUIT FOR SHORT
Check continuity between BCM connector M17 and ground.
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace harness or connectors.
3. CHECK BCM INPUT VOLTAGE
1. Connect BCM connector M17 and combination switch connector.
2. Turn ignition switch ON.
3. Check voltage between BCM connector M17 and ground.
Signal BCM Combination switch
Continuity
Connector Terminal Connector Terminal
OUTPUT 1
M1714
M28 12
Ye s
OUTPUT 2 13 14
OUTPUT 3 12 5
OUTPUT 4 11 2
OUTPUT 5 10 8
Signal BCM
GroundContinuity
Connector Terminal
OUTPUT 1
M1714
No
OUTPUT 2 13
OUTPUT 3 12
OUTPUT 4 11
OUTPUT 5 10
Signal BCM
Ground Voltage
Connector Terminal
OUTPUT 1
M1714
—Refer to
BCS-31, "Ref-
erence Value".
OUTPUT 2 13
OUTPUT 3 12
OUTPUT 4 11
OUTPUT 5 10
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BRC-1
BRAKES
C
D E
G H
I
J
K L
M
SECTION BRC
A
B
BRC
N
O P
CONTENTS
BRAKE CONTROL SYSTEM
VDC/TCS/ABS
PRECAUTION ................ ...............................
4
PRECAUTIONS .............................................. .....4
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" ............................................................. ......
4
Precaution for Brake System ....................................4
Precaution for Brake Control .....................................5
Precaution for CAN System ................................ ......5
Precaution for Work ..................................................6
PREPARATION ............................................7
PREPARATION .............................................. .....7
Special Service Tool ........................................... ......7
Commercial Service Tool ..........................................7
SYSTEM DESCRIPTION ..............................8
COMPONENT PARTS ................................... .....8
Component Parts Location .................................. ......8
Component Description .............................................9
ABS Actuator and Electric Unit (Control Unit) ...........9
Wheel Sensor and Sensor Rotor ............................10
Stop Lamp Switch ...................................................10
Steering Angle Sensor ............................................10
Brake Fluid Level Switch .........................................10
Vacuum Sensor .......................................................10
Parking Brake Switch ..............................................11
VDC OFF Switch .....................................................11
SYSTEM .............................................................12
VDC/TCS/ABS ....................................................... ....12
VDC/TCS/ABS : System Diagram ...........................12
VDC/TCS/ABS : System De scription ......................12
VDC/TCS/ABS : VDC Functi on ...............................23
VDC/TCS/ABS : TCS Functi on ...............................25
VDC/TCS/ABS : ABS Function ........................... ....27
VDC/TCS/ABS : EBD Functi on ...............................28
VDC/TCS/ABS : Fail-safe ... .....................................29
DIAGNOSIS SYSTEM [ABS ACTUATOR
AND ELECTRIC UNIT (CONTROL UNIT)] .......
33
CONSULT Function (ABS) .................................. ....33
ECU DIAGNOSIS INFORMATION ..............38
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) .............................................
38
Reference Value .................................................. ....38
Fail-safe ...................................................................41
DTC Inspection Priority Chart ..................................44
DTC Index ...............................................................45
WIRING DIAGRAM ......................................47
BRAKE CONTROL SYSTEM ...........................47
Wiring Diagram .................................................... ....47
BASIC INSPECTION ...................................55
DIAGNOSIS AND REPAIR WORK FLOW .......55
Work Flow ............................................................ ....55
Diagnostic Work Sheet ............................................56
ADDITIONAL SERVICE WHEN REPLACING
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) .............................................
57
Description ........................................................... ....57
ADJUSTMENT OF STEERING ANGLE SEN-
SOR NEUTRAL POSITION ...............................
58
Description ........................................................... ....58
Work Procedure .......................................................58
CONFIGURATION [ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT)] ................
60
Work Procedure ................................................... ....60
CALIBRATION OF DECEL G SENSOR ...........62
Description ...............................................................62
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BRC-12
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
SYSTEM
VDC/TCS/ABS
VDC/TCS/ABS : System DiagramINFOID:0000000009463751
VDC/TCS/ABS : System DescriptionINFOID:0000000009463752
• The system switches fluid pressure of each brake caliper to increase, to hold, or to decrease according to
signals from control unit in ABS actuator and electric unit (control unit). This control system is applied to
VDC, TCS, ABS and EBD functions.
• Fail-safe function is available for each function and is activated by each function when system malfunction
occurs.
INPUT SIGNAL AND OUTPUT SIGNAL
Major signal transmission between each unit via communication lines is shown in the following table.
ALFIA0294GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMBRC-23
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
N
O P
VDC/TCS/ABS : VDC FunctionINFOID:0000000009463753
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
• Side slip or tail slip may occur while driving on a slippery road or intending an urgent evasive driving maneu- ver. VDC function detects side slip status using each s ensor when side slip or tail slip is about to occur and
improves vehicle stability by brake c ontrol and engine output control during driving.
• In addition to ABS function, EBD function and TCS functi on, target side slip amount is calculated according
to steering operation amount from steering angle sensor. By comparing this information with vehicle side slip
amount that is calculated from information from yaw rate/side G sensor and wheel sensor, vehicle driving
conditions (conditions of understeer or oversteer) are judged and vehicle stability is improved by brake force
control on all 4 wheels and engine output control.
• VDC function can be switched to non-operational status (OFF) by operating VDC OFF switch. In this case,
VDC OFF indicator lamp turns ON.
• Control unit portion automatically improves driving st ability by performing brake force control as well as
engine output control, by transmitting drive signal to actuator portion according to difference between target
side slip amount and vehicle side slip amount
Brake limited slip differential (BLSD) function
is malfunctioning OFF OFF
VDC function is operating OFF OFF
TCS function is operating OFF OFF Condition (status) ABS warnin
g lamp Brake warning lamp
ALFIA0298GB
JSFIA0672GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMBRC-25
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
N
O P
VDC Function That Prevents Understeer Tendency
• During cornering, brake force (brake fluid pressure) is applied on front wheel and rear wheel on the inner
side of turn. Momentum is generated di recting the vehicle toward the inner side of the turn. Understeer is
prevented.
• Applying brakes during cornering on a slippery road, when there may be a tendency to understeer, engine output is controlled as well as brake force (bra ke fluid pressure) of 4 wheels. Understeer tendency
decreases.
VDC/TCS/ABS : TCS FunctionINFOID:0000000009463754
SYSTEM DIAGRAM
SYSTEM DESCRIPTION
JPFIC0137GB
ALFIA0341GB
ALFIA0298GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMBRC-27
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
N
O P
VDC/TCS/ABS : ABS FunctionINFOID:0000000009463755
SYSTEM DIAGRAM
• By preventing wheel lock through brake force (brake flui d pressure) control that is electronically controlled by
detecting wheel speed during braking, stability during em ergency braking is improved so that obstacles can
be avoided by steering operation.
• During braking, control units calculate wheel speeds , and transmit pressure increase, hold or decrease sig-
nals to actuator portion according to wheel slip status.
• The following effects are obtained by preventing wheel lock during braking.
- Vehicle tail slip is prevented during braking when driving straight.
- Understeer and oversteer tendencie s are moderated during brak-
ing while cornering.
- Obstacles may be easily bypassed by steering operation during
braking.
• CONSULT can be used to diagnose the system.
• Fail-safe function is adopted. When a malfunction occurs in ABS
function, the control is suspended for VDC function, TCS function
and ABS function. However, EBD function operates normally.
Refer to BRC-29, "VDC/TCS/ABS : Fail-safe"
.
INPUT SIGNAL AND OUTPUT SIGNAL
ALFIA0297GB
JPFIC0140GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BRC-28
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
SYSTEM
Major signal transmission between each unit via communication lines is shown in the following table.
VDC/TCS/ABS : EBD FunctionINFOID:0000000009463756
SYSTEM DIAGRAM
• By preventing rear wheel slip increase through rear wheel
brake force (brake fluid pressure) control that is
electronically controlled when slight skip on front and r ear wheels are detected during braking, stability dur-
ing braking is improved.
• EBD function is expanded and developed from conventi onal ABS function and corrects rear wheel brake
force to appropriate level by electronic control according to load weight (number of passengers).
Component Signal description
Combination meter Receives the following signals from ABS actuator
and electric unit (control unit) via CAN com-
munication.
• VDC warning lamp signal
• ABS warning lamp signal
ALFIA0297GB
JPFIC0142GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM