2003 NISSAN TEANA sensor

BRC-32
[ABS]
TROUBLE DIAGNOSIS FOR SYMPTOMS

2. SYMPTOM CHECK 2
Check symptoms when electrical component (headlamps, etc.) switches are operated.
Do symptoms occur?
YES >> Check if there is a radio, antenna, antenna lead wire, or wiring close to the control unit. If there is,
move it farther away.
NO >> GO TO 3. Check Wheel Sensor and Sensor Rotor. Refer to BRC-30, "
Excessive ABS Function
Operation Frequency" .

WHEEL SENSORS
BRC-33
[ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

WHEEL SENSORSPFP:47910
Removal and InstallationBFS000DH
COMPONENTS
REMOVAL
Be careful of the following:
CAUTION:
When removing the wheel sensor, do not rotate it if possible, and do not forcibly pull the wheel sensor
harness.
INSTALLATION
Note the following, and tighten bolts to the specified torque.

Check the inside of the wheel sensor mounting hole for foreign materials, the rotor surface for iron chips
and other foreign materials. Clean both the wheel sensor mounting hole and the rotor surface before
installation. Replace the wheel sensor if there is any non-standard condition.

Completely push in rubber clamp of strut bracket and body bracket until they lock when installing front
wheel sensor so that the wheel sensor harness will not be twisted. Install grommet groove onto bracket
with yellow line on the harness facing bracket opening (mounting hole). There should be no twists in the
harness when installed.

When installing the rear sensor, securely install the harness mount of the rear suspension member so that
the wheel sensor harness is not twisted. In addition, there should be no twists in the harness when
installed.
SFIA2091E

BRC-34
[ABS]
SENSOR ROTOR

SENSOR ROTORPFP:47970
Removal and InstallationBFS000DI
FRONT
Sensor rotor cannot be disassembled. Replace wheel hub and bearing assembly and sensor rotor as a set.
Refer to FA X - 5 , "
Removal and Installation" in FAX section.
REAR
Sensor rotor cannot be disassembled. Replace wheel hub and bearing assembly and sensor rotor as a set.
Refer to RAX-3, "
Removal and Installation" in RAX section.

BRC-38
[VDC/TCS/ABS]
PRECAUTIONS

size), components related to brake (Pad, Rotor, Caliper, etc.), Components related to engine (Muffler,
ECM, etc.), Components related to body reinforcement (Roll bar, Tower bar, etc.).

Driving in the condition of breakage or excessive wear of the suspension, tires or components related to
the brakes 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 carves on a freeway), the VDC may not operate normally, or the VDC OFF indicator lamp and the
SLIP indicator lamp may turn on. However, this is not a incident if normal operation can be resumed after
restarting the engine.

Sudden turns (such as spin turns, acceleration turns), drifting, etc; when VDC function is OFF (VDC OFF
switch ON), may cause that the yaw rate/side/decel G sensor system indicate a incident. However this is
not a incident if normal operation can be resumed after restarting the engine.

BRC-40
[VDC/TCS/ABS]
ON-VEHICLE SERVICE

ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionBFS000DO
In case of doing work that applies to the list below, make sure to adjust neutral position of steering angle sen-
sor before running vehicle.
×: Required
–: Not required
OPERATION PROCEDURE
1. Stop vehicle with front wheels in straight-ahead position.
2. Perform CONSULT-II Starting Procedure. Refer to GI-34, "
CONSULT-II Start Procedure" .
3. Touch the “CONSULT-II screen in the order of “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR
ADJUSTMENT”. Refer to BRC-57, "
CONSULT-II SETTING PROCEDURE" .
4. Touch “START”.
CAUTION:
Do not touch steering wheel while adjusting steering angle
sensor.
5. After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6. Turn ignition switch to OFF, then turn to the ON again.
CAUTION:
Be sure to perform above operation.
7. Run vehicle with front wheels in straight-ahead position, then
stop.
8. Select “DATA MONITOR”, “SELECTION FROM MENU”, and “STR ANGLE SIG” on CONSULT-II screen.
Then make sure “STR ANGLE SIG” is within 0 ± 3.5 °. If the value is more than the specification, repeat
steps 3 to 7.
9. Erase memory of ABS actuator and electric unit (control unit) and ECM.
10. Turn ignition switch OFF.
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ABS actuator and electric unit (control unit)−
Replacing ABS actuator and electric unit (control unit)×
Removing/Installing steering angle sensor×
Removing/Installing steering components×
Removing/Installing suspension components×
Change 4 tires to new ones–
Tire rotation–
Adjusting wheel alignment×
SFIA0793E

SYSTEM DESCRIPTION
BRC-41
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

SYSTEM DESCRIPTIONPFP:00000
System DiagramBFS000DP
FunctionsBFS000DQ
VDC

In addition to the TCS/ABS function, the steering amount and brake operation amount are detected from
the steering angle sensor and brake switch, and the driving condition (amount of under-steering/over-
steering) is determined from information from the yaw rate/side/decel G sensor, vehicle speed sensor, etc.
This information is used to improve vehicle stability by controlling the braking and engine power to all four
wheels.

The SLIP indicator lamp flashes to inform the driver of VDC operation.

During VDC operation, the body and brake pedal lightly vibrate and mechanical noises may be heard.
This is normal.

ABS warning lamp, VDC OFF indicator lamp, and SLIP indicator lamp might turn on when the vehicle is
subject to strong shaking or large vibration, such as when the vehicle is on a turn table or a ship while
engine is running. In this case, restart engine on a normal road, and if ABS warning lamp, VDC OFF indi-
cator lamp, and SLIP indicator lamp turn off, there is no malfunction.
TCS

Speed signals for 4 wheels control engine output and transaxle conditions so that slip rate of the drive
wheels is optimum. ABS actuator and electric unit (control unit) detects wheelspin. Output from the control
unit controls brake fluid pressure to both LH and RH drive wheels while cutting fuel to the engine and clos-
ing the throttle valve to reduce engine torque when wheelspin is detected. Throttle position is continuously
controlled to ensure the appropriate engine torque at all times.

Depending on road conditions, the driver may have a sluggish feel. This is normal, because the optimum
traction has the highest priority by TCS operation.

TCS may be activated momentarily the vehicle suddenly accelerates, suddenly downshifts, or is driven on
a road with a varying surface friction coefficient.

During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
SFIA3329E

TROUBLE DIAGNOSIS
BRC-55
[VDC/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Control Unit Input/Output Signal SpecificationsBFS000E1
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The monitor displays the control unit calculation data. The normal values will be displayed even in the
event that the output circuit (harness) is open or shorted.
Monitor item Display itemDATA MONITOR
ConditionReference values for
normal operation
WHEEL SENSORVehicle speed calculated using sig-
nals from all four wheel sensorsVehicle stopped 0 [km/h (MPH)]
Vehicle running (Note 1)Almost in accordance
with speedometer dis-
play (within ± 10 %)
DECEL G SENSOR Decel G detected by decel G sensorWhen stopped -0.11 to +0.11 G
During acceleration Negative value
During deceleration Positive value
IN ABS S/V
OUT ABS S/VOperation condition of all solenoid
valvesWhen the actuator solenoid operates ON
When the actuator relay operates and
the actuator solenoid does not operateOFF
EBD WARN LAMP
(Note 2)Brake warning lamp ON/OFF condi-
tionWhen brake warning lamp is ON ON
When brake warning lamp is OFF OFF
STOP LAMP SW Brake pedal operation conditionBrake pedal depressed ON
Brake pedal not depressed OFF
MOTOR RELAYMotor and motor relay operation con-
ditionWhen motor relay and motor are
operatingON
When motor relay and motor are not
operatingOFF
ACTUATOR RLY Actuator relay operation conditionActuator relay activated ON
Actuator relay not activated OFF
ABS WARN LAMPABS warning lamp ON/OFF condition
(Note 3)When ABS warning lamp is ON ON
When ABS warning lamp is OFF OFF
OFF LAMPVDC OFF indicator lamp ON/OFF
condition (Note 4)When VDC OFF indicator lamp is ON ON
When VDC OFF indicator lamp is OFF OFF
OFF SW VDC OFF switch ON/OFF conditionWhen VDC OFF switch ON
(When the VDC OFF indicator lamp is
ON)ON
When VDC OFF switch OFF
(When the VDC OFF indicator lamp is
OFF)OFF
SLIP LAMPSLIP indicator lamp ON/OFF condi-
tion (Note 5)When SLIP indicator lamp is ON ON
When SLIP indicator lamp is OFF OFF
BATTERY VOLTBattery voltage supplied to ABS actu-
ator and electric unit (control unit)Ignition switch ON 10 - 16 V
GEARDetermined gearshift position from
the A/T switch signalAlways1: 1st gear
2: 2nd gear
3: 3rd gear
4: 4th gear
ENGINE SPEED Engine runningWith engine stopped 0 rpm
Engine runningAlmost in accordance
with tachometer display
YAW RATE SEN Yaw rate detected by yaw rate sensor When stopped−7.0 to +7.0 d/s

BRC-56
[VDC/TCS/ABS]
TROUBLE DIAGNOSIS

Note 1: Confirm tire pressure is the standard value.
Note 2: Warning lamp can be used as both EBD warning lamp and brake warning.N POSI SIGShift position determined by the A/T
switch signalWhen in N position ON
Other than N position OFF
P POSI SIGShift position determined by the A/T
switch signalWhen in P position ON
Other than P position OFF
FR LH IN SOL
FR LH OUT SOL
FR RH IN SOL
FR RH OUT SOL
RR LH IN SOL
RR LH OUT SOL
RR RH IN SOL
RR RH OUT SOLOperation condition of all solenoid
valvesActuator (solenoid) is active (“ACTIVE
TEST” with CONSULT-II) and actuator
relay is active (ignition switch ON)ON
When actuator (solenoid) is not active
or actuator relay is not active (in fail-
safe mode)OFF
STOP LAMP SW2 Brake pedal operation conditionBrake pedal depressed ON
Brake pedal not depressed OFF
ACCEL POS SIGAccelerator open/close condition
(linked to the accelerator pedal)Do not step on the accelerator pedal
(When ignition switch is on)0 %
Step on the accelerator pedal
(When ignition switch is on)0 - 100 %
SIDE G SENSOR Side G detected by side G sensorWhen stopped
−1.1 to +1.1 m/s
2
Right turn Negative value
Left turn Positive value
STR ANGLE SIGSteering angle detected by steering
angle sensorStraight-ahead position -3.5° to 3.5°
Steering wheel turned right 0° to 756°
Steering wheel turned left 0° to -756°
EBD SIGNAL EBD operation conditionEBD activated ON
EBD not activated OFF
ABS SIGNAL ABS operation conditionABS activated ON
ABS not activated OFF
TCS SIGNAL TCS operation conditionTCS activated ON
TCS not activated OFF
VDC SIGNAL VDC operation conditionVDC activated ON
VDC not activated OFF
EBD FAIL SIG EBD fail-safe signal conditionIn EBD fail-safe ON
EBD is normal OFF
ABS FAIL SIG ABS fail-safe signal conditionIn ABS fail-safe ON
ABS is normal OFF
TCS FAIL SIG TCS fail-safe signal conditionIn TCS fail-safe ON
TCS is normal OFF
VDC FAIL SIG VDC fail-safe signal conditionIn VDC fail-safe ON
VDC is normal OFF
CRANKING SIG Cranking conditionAt cranking ON
Other than at cranking OFF
FLUID LEV SWBrake fluid level switch ON/OFF con-
ditionWhen brake fluid level switch is ON ON
When brake fluid level switch is OFF OFF Monitor item Display itemDATA MONITOR
ConditionReference values for
normal operation