2014 NISSAN TEANA steering

BRAKE BOOSTERBR-29
< REMOVAL AND INSTALLATION >
C
D E
G H
I
J
K L
M A
B
BR
N
O P
5. Remove the snap pin (1) and clevis pin (2) from the brake pedal. CAUTION:
Do not reuse snap pin or clevis pin.
6. Disconnect the harness connectors from the ASCD cancel switch and stop lamp switch.
7. Disconnect the steering column assembly pinch bolt and position the steering column shaft aside. Refer to
ST-33, "Exploded View"
.
8. Remove the brake master cylinder. Refer to BR-26, "Removal and Installation"
.
9. Disconnect the fuel line main connections. Refer to FL-5, "Quick Connector"
.
10. Remove the cowl top. Refer to EXT-24, "Removal and Installation"
.
11. Remove the strut tower bar. Refer to FSU-19, "Exploded View"
.
12. Remove the wiper drive assembly. Refer to WW-64, "Removal and Installation"
.
13. Remove the cowl top extension.
14. Disconnect the vacuum hose from the brake booster.
15. Disconnect the active boost sensor harness connector.
16. Remove brake booster nuts.
17. Remove the brake booster.
18. Remove and discard the brake booster gasket. CAUTION:
Do not reuse brake booster gasket.
INSTALLATION
Installation is in the reverse order of removal.
• Prior to installation, loosen clevis lock nut (1) and adjust input rod (2) to the specified value (B).
• After input rod adjustment (B), temporarily tighten clevis lock nut for installation of brake booster.
• Connect the battery negative terminal. Refer to PG-7, "ADDITIONAL SERVICE WHEN REMOVING BAT-
TERY NEGATIVE TERMINAL : Special Repair Requirement".
Removal and Installation - VQ35DEINFOID:0000000009463708
CAUTION:
• Do not deform or bend brake tube while removing and installing brake booster.
• Do not reuse snap pin or clevis pin.
• Do not reuse brake booster gasket.
• Do not damage brake booster stud bolt threads. If brake booster is tilted during service, the dash
panel may damage the threads.
REMOVAL
1. Release the fuel pressure from the fuel system. Refer to EC-687, "Work Procedure".
JPFIA0019ZZ
Length (B) : Refer to BR-49, "Brake Booster".
ALFIA0299ZZ
Revision: 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-2
Work Procedure ......................................................62
DTC/CIRCUIT DIAGNOSIS ...................... ...64
C1101, C1102, C1103, C1104 WHEEL SEN-
SOR ................................................................. ...
64
DTC Logic ............................................................ ...64
Diagnosis Procedure ..............................................64
C1105, C1106, C1107, C1108 WHEEL SEN-
SOR ................................................................. ...
68
DTC Logic ............................................................ ...68
Diagnosis Procedure ..............................................68
C1109 POWER AND GROUND SYSTEM .........70
DTC Logic ............................................................ ...70
Diagnosis Procedure ..............................................70
C1110, C1153, C1170 ABS ACTUATOR AND
ELECTRIC UNIT (CONTROL UNIT) .............. ...
72
DTC Logic ............................................................ ...72
Diagnosis Procedure ..............................................72
C1111 PUMP MOTOR .......................................73
DTC Logic ............................................................ ...73
Diagnosis Procedure ..............................................73
C1113, C1145, C1146 YAW RATE/SIDE/DE-
CEL G SENSOR ............................................. ...
75
DTC Logic ............................................................ ...75
Diagnosis Procedure ..............................................75
C1115 ABS SENSOR [ABNORMAL SIGNAL] ...76
DTC Logic ............................................................ ...76
Diagnosis Procedure ..............................................76
C1116 STOP LAMP SWITCH ............................78
DTC Logic ............................................................ ...78
Diagnosis Procedure ..............................................78
C1120, C1122, C1124, C1126 ABS IN VALVE
SYSTEM ............ .............................................. ...
80
DTC Logic ............................................................ ...80
Diagnosis Procedure ..............................................80
C1121, C1123, C1125, C1127 ABS OUT
VALVE SYSTEM ............................................. ...
82
DTC Logic ............................................................ ...82
Diagnosis Procedure ..............................................82
C1130 ENGINE SIGNAL ...................................84
DTC Logic ............................................................ ...84
Diagnosis Procedure ..............................................84
C1140 ACTUATOR RELAY SYSTEM ...............85
DTC Logic ............................................................ ...85
Diagnosis Procedure ..............................................85
C1142 PRESS SENSOR ...................................87
DTC Logic ............................................................ ...87
Diagnosis Procedure ..............................................87
C1143 STEERING ANGLE SENSOR ...............88
DTC Logic ............................................................ ...88
Diagnosis Procedure ...............................................88
C1144 INCOMPLETE STEERING ANGLE
SENSOR ADJUSTMENT ............................... ...
90
DTC Logic ............................................................ ...90
Diagnosis Procedure ...............................................90
C1154 PNP SWITCH .........................................91
Description ........................................................... ...91
DTC Logic ...............................................................91
Diagnosis Procedure ...............................................91
Special Repair Requirement ...................................91
C1155 BR FLUID LEVEL LOW .........................93
DTC Logic ............................................................ ...93
Diagnosis Procedure ...............................................93
Component Inspection ............................................94
C1160 DECEL G SEN SET ...............................95
DTC Logic ............................................................ ...95
Diagnosis Procedure ...............................................95
C1164, C1165, C1166, C1167 CV/SV SYS-
TEM ................................................................. ...
96
DTC Logic ............................................................ ...96
Diagnosis Procedure ...............................................96
C1197 VACUUM SENSOR ............................. ...98
DTC Logic ............................................................ ...98
Diagnosis Procedure ...............................................98
C1198 VACUUM SENSOR ............................. ..100
DTC Logic ............................................................ .100
Diagnosis Procedure .............................................100
C1199 BRAKE BOOSTER ............................. ..102
DTC Logic ............................................................ .102
Diagnosis Procedure .............................................102
C119A VACUUM SENSOR ..............................104
DTC Logic ............................................................ .104
Diagnosis Procedure .............................................104
U1000 CAN COMM CIRCUIT ...........................106
DTC Logic ............................................................ .106
Diagnosis Procedure .............................................106
U1002 SYSTEM COMM (CAN) ........................107
DTC Logic ............................................................ .107
Diagnosis Procedure .............................................107
PARKING BRAKE SWITCH .............................108
Component Function Check ................................ .108
Diagnosis Procedure .............................................108
Component Inspection ..........................................109
VDC OFF SWITCH ...........................................110
Component Function Check ................................ .110
Diagnosis Procedure .............................................110
Component Inspection ..........................................111
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BRC-3
C
D E
G H
I
J
K L
M A
B
BRC
N
O P
ABS WARNING LA MP ................................... ..112
Component Function Check ................................ ..112
Diagnosis Procedure .............................................112
BRAKE WARNING LAMP ............................. ..113
Component Function Check ................................ ..113
Diagnosis Procedure .............................................113
VDC OFF INDICATOR LAMP ..........................114
Description .......................................................... ..114
Component Function Check ..................................114
Diagnosis Procedure .............................................114
SLIP INDICATOR LAMP ..................................115
Component Function Check ................................ ..115
Diagnosis Procedure .............................................115
SYMPTOM DIAGNOSIS ............................116
VDC/TCS/ABS ................................................ ..116
Symptom Table ................................................... ..116
EXCESSIVE ABS FUNCTION OPERATION
FREQUENCY ................................................. ..
117
Diagnosis Procedure ........................................... ..117
UNEXPECTED PEDAL REACTION ................118
Diagnosis Procedure ........................................... ..118
THE BRAKING DISTANCE IS LONG ..............119
Diagnosis Procedure ........................................... ..119
ABS FUNCTION DOES NOT OPERATE .........120
Diagnosis Procedure ........................................... ..120
PEDAL VIBRATION OR ABS OPERATION
SOUND OCCURS .......................................... ..
121
Diagnosis Procedure ........................................... ..121
VEHICLE JERKS DURING VDC/TCS/ABS
CONTROL .......................................................
122
Diagnosis Procedure ........................................... ..122
NORMAL OPERATING CONDITION .............123
Description .............................................................123
REMOVAL AND INSTALLATION .............124
WHEEL SENSOR ............................................124
Exploded View - Front Wheel Sensor .................. ..124
Removal and Installation - Front Wheel Sensor ....124
Exploded View - Rear Wheel Sensor ....................125
Removal and Installation - Rear Wheel Sensor .....125
SENSOR ROTOR ............................................127
Removal and Installation - Front Sensor Rotor .....127
Removal and Installation - Rear Sensor Rotor ......127
ABS ACTUATOR AND ELECTRIC UNIT
(CONTROL UNIT) ...........................................
128
Exploded View ..................................................... ..128
Removal and Installation .......................................128
VDC OFF SWITCH ..........................................130
Removal and Installation .......................................130
YAW RATE/SIDE/DECEL G SENSOR ...........131
Removal and Installation .......................................131
STEERING ANGLE SENSOR .........................132
Exploded View .......................................................132
Removal and Installation .......................................132
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

PRECAUTIONSBRC-5
< PRECAUTION > [VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
N
O P
Precaution for Brake ControlINFOID:0000000009463736
• During ABS operation, the brake pedal may vibrate lightly and a mechanical noise may be heard. This is normal.
• Just after starting vehicle, the brake pedal may vibrate or a motor operating noise may be heard from engine
compartment. This is a normal status of operation check.
• Stopping distance may be longer than that of vehicles without ABS when vehicle drives on rough, gravel, or
snow-covered (fresh, deep snow) roads.
• When an error is indicated by ABS or another warning lamp, collect all necessary information from customer
(what symptoms are present under what conditions) and check for simple causes before starting diagnosis.
Besides electrical system inspection, check boos ter operation, brake fluid level, and fluid leaks.
• If incorrect tire sizes or types are installed on the vehicle or brake pads are not Genuine NISSAN parts, stop-
ping distance or steering stability may deteriorate.
• If there is a radio, antenna or related wiring near control module, ABS function may have a malfunction or
error.
• If aftermarket parts (car stereo, CD player, etc.) have been installed, check for incidents such as harness pinches, open circuits or improper wiring.
• If the following components are replaced with non-genuine components or modified, the VDC OFF indicator
lamp and SLIP indicator lamp may turn on or the VDC system may not operate properly. Components
related to suspension (shock absorbers, struts, springs , bushings, etc.), tires, wheels (exclude specified
size), components related to brake system (pads, roto rs, calipers, etc.), components related to engine (muf-
fler, ECM, etc.), components related to body reinforcement (roll bar, tower bar, etc.).
• Driving with broken or excessively worn suspensi on components, tires or brake system components may
cause the VDC OFF indicator lamp and the SLIP indicator lamp to turn on, and the VDC system may not
operate properly.
• When the TCS or VDC is activated by sudden acceleration or sudden turn, some noise may occur. The
noise is a result of the normal operation of the TCS and VDC.
• When driving on roads which have extreme slopes (such as mountainous roads) or high banks (such as sharp curves on a freeway), the VDC may not operate no rmally, or the VDC warning lamp and the SLIP indi-
cator lamp may turn on. This is not a problem if normal operation can be resumed after restarting the engine.
• Sudden turns (such as spin turns, acceleration turns), drifting, etc. with VDC turned off may cause the yaw rate/side/decel G sensor to indicate a problem. This is not a problem if normal operation can be resumed
after restarting the engine.
Precaution for CAN SystemINFOID:0000000009463737
• Do not apply voltage of 7.0V or higher to terminal to be measured.
• Maximum open terminal voltage of tester in use must be less than 7.0V.
• Before checking harnesses, turn ignition switch OFF and disconnect battery negative cable.
• Area to be repaired must be soldered and wrapped with tape. Make sure that fraying of twisted wire is within 110 mm (4.33 in).
PKIA0306E
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

COMPONENT PARTSBRC-9
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
N
O P
Component DescriptionINFOID:0000000009463742
ABS Actuator and Electric Unit (Control Unit)INFOID:0000000009463743
Electric unit (control unit) is integrated with actuator and comprehensively controls VDC function, TCS func-
tion, ABS function and EBD function.
ELECTRIC UNIT (CONTROL UNIT)
• Brake fluid pressure is controlled according to signals from each sensor.
• If malfunction is detected, t he system enters fail-safe mode.
ACTUATOR
The following components are integrated with ABS actuator.
Pump
Returns the brake fluid reserved in reservoir to master cylinder by reducing pressure.
Motor
Activates the pump according to signals from ABS actuator and electric unit (control unit).
Motor Relay
Operates the motor ON/OFF according to signals fr om ABS actuator and electric unit (control unit).
Actuator Relay (Main Relay)
Operates each valve ON/OFF according to signals fr om ABS actuator and electric unit (control unit).
ABS IN Valve
Switches the fluid pressure line to increase or hold according to signals from control unit.
ABS OUT Valve
Switches the fluid pressure line to increase, hold or decrease according to signals from control unit.
Cut Valve 1, Cut Valve 2
Shuts off the ordinary brake line from master cylinder, when VDC function and TCS function are activated.
7. Rear wheel sensor LH (RH similar) 8. VDC OFF switch 9. Steering angle sensor
(view with steering wheel removed)
10. Parking brake switch 11. Stop lamp switch 12. Combination meter
Component Reference/Function
ABS actuator and electric unit (control unit) BRC-9, "ABS Actuator and Electric Unit (Control Unit)"
Wheel sensorBRC-10, "Wheel Sensor and Sensor Rotor"
Stop lamp switchBRC-10, "Stop Lamp Switch"
Steering angle sensorBRC-10, "Steering Angle Sensor"
Vacuum sensorBRC-10, "Vacuum Sensor"
VDC OFF switchBRC-11, "VDC OFF Switch"
Brake fluid level switchBRC-10, "Brake Fluid Level Switch"
Parking brake switchBRC-11, "Parking Brake Switch"
ABS warning lamp
BRC-12, "VDC/TCS/ABS : System Description"
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
ECM Transmits the following signals to ABS actuator and electric unit (control unit) via CAN
communication.
• Accelerator pedal position signal
• Engine speed signal
• Target throttle position signal
TCM Transmits the current gear position signal
to ABS actuator and electric unit (control
unit) via CAN communication.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

BRC-10
< SYSTEM DESCRIPTION >[VDC/TCS/ABS]
COMPONENT PARTS
Suction Valve 1, Suction Valve 2
Supplies the brake fluid from master cylinder to t
he pump, when VDC function and TCS function are activated.
Return Check Valve
Returns the brake fluid from brake caliper and wheel cy linder to master cylinder by bypassing orifice of each
valve when brake is released.
Reservoir
Temporarily reserves the brake fluid drained from brake caliper, so that pressure efficiently decreases when
decreasing pressure of brake caliper and wheel cylinder.
Yaw rate/side/decel G sensor
Calculates the following information that affects the vehicle, and transmits a signal to ABS actuator and elec-
tric unit (control unit) via communication lines.
• Vehicle rotation angular velocity (yaw rate signal)
• Vehicle lateral acceleration (side G signal) and longitudinal acceleration (decel G signal)
Pressure Sensor
Detects the brake fluid pressure and transmits signal to ABS actuator and electric unit (control unit).
Wheel Sensor and Sensor RotorINFOID:0000000009463744
NOTE:
• Wheel sensor of front wheel is installed on steering knuckle.
• Sensor rotor of front wheel is integrated in wheel hub assembly.
• Wheel sensor of rear wheel is installed on back plate of rear brake.
• Sensor rotor of rear wheel is installed on rear brake drum.
• Never measure resistance and voltage value using a tester because sensor is active sensor.
• Downsize and weight reduction is aimed. IC for detection portion and magnet for sensor rotor are adopted.
• Power supply is supplied to detection portion so that magnetic field line is read. Magnetic field that is detected is converted to current
signal.
• When sensor rotor rotates, magnetic field changes. Magnetic field change is converted to current signals (rectangular wave) and is
transmitted to ABS actuator and el ectric unit (control unit). Change
of magnetic field is proportional to wheel speed.
Stop Lamp SwitchINFOID:0000000009463745
Detects the operation status of brake pedal and transmits converted electric signal to ABS actuator and elec-
tric unit (control unit).
Steering Angle SensorINFOID:0000000009463746
Detects the following information and transmits steering angl e signal to ABS actuator and electric unit (control
unit) via CAN communication.
• Steering wheel rotation amount
• Steering wheel rotation angular velocity
• Steering wheel rotation direction
Brake Fluid Level SwitchINFOID:0000000009463747
Detects the brake fluid level in reservoir tank and transmi ts converted electric signal from combination meter to
ABS actuator and electric unit (control unit) via CAN communication.
Vacuum SensorINFOID:0000000009463748
Detects the vacuum in brake booster and transmits conver ted electric signal to ABS actuator and electric unit
(control unit).
JPFIC0131GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

SYSTEMBRC-13
< SYSTEM DESCRIPTION > [VDC/TCS/ABS]
C
D E
G H
I
J
K L
M A
B
BRC
N
O P
VALVE OPERATION (VDC AND TCS FUNCTIONS)
The control unit built in the ABS actuator and electric unit (control unit) controls fluid pressure of the brake cal-
ipers by operating each valve.
VDC and TCS Functions are Operating (Pressure Increases)
Component Signal description
Steering angle sensor Transmits the steering an
gle sensor signal to ABS actuator an d electric unit (control unit) via
CAN communication.
ECM Transmits the following signals to ABS actuator and electric unit (control unit) via CAN commu-
nication.
• Accelerator pedal position signal
• Engine speed signal
• Target throttle position signal
TCM Transmits the current gear positi
on signal to ABS actuator and electric unit (control unit) via
CAN communication.
Combination meter Transmits the following signals to ABS actuator and electric unit (control unit) via CAN commu-
nication.
• Brake fluid level switch signal
• Parking brake switch signal
Receives the foll owing signals from ABS actuator and elec tric unit (control unit) via CAN com-
munication.
• ABS warning lamp signal
• Brake warning lamp signal
• VDC OFF indicator lamp signal
• SLIP indicator lamp signal
ALFIA0309GB
Name Not activated Pressure increases
Cut valve 1 Power supply is not supplied (open) Power supply is supplied (close)
Cut valve 2 Power supply is not supplied (open) Power supply is supplied (close)
Suction valve 1 Power supply is not supplied (close) Power supply is supplied (open)
Suction valve 2 Power supply is not supplied (close) Power supply is supplied (open)
ABS IN valve Power supp ly is not supplied (open) Power supp ly is not supplied (open)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM