2005 NISSAN X-TRAIL sensor

BRC-48
[ABS]
SENSOR ROTOR

SENSOR ROTORPFP:47970
Removal and InstallationEFS004GZ
REMOVAL
Front
1. Remove drive shaft. Refer to FAX-11, "Removal and Installation" in “FAX Front axle/Drive shaft”.
2. Remove sensor rotor from drive shaft. Refer to “FAX Front axle/Drive shaft ” FAX-13, "
Disassembly and
Assembly" .
Rear (2WD Model)
1. Remove wheel hub. Refer to RAX-6, "Removal and Installation" .
2. Remove sensor rotor from wheel hub. Refer to RAX-7, "
Disassembly and Assembly" .
Rear (4WD Model)
1. Remove drive shaft. Refer to RAX-14, "Removal and Installation" in “RAX Rear axle/Drive shaft”.
2. Remove sensor rotor from drive shaft. Refer to “RAX Rear axle/Drive shaft” RAX-15, "
Disassembly and
Assembly" .
INSTALLATION
Front
1. Install sensor rotor to drive shaft. Refer to “FAX Front axle/Drive shaft” FA X - 1 3 , "Disassembly and Assem-
bly"
2. Connect drive shaft. Refer toFAX-11, "Removal and Installation" in “FAX Front axle/Drive shaft”.
Rear (2WD Model)
1. Install sensor rotor to wheel hub. Refer to RAX-7, "Disassembly and Assembly" .
2. Install wheel hub. Refer to RAX-6, "
Removal and Installation" .
Rear (4WD Model)
1. Install sensor rotor to drive shaft. Refer to “RAX Rear axle/Drive shaft” RAX-15, "Disassembly and
Assembly"
2. Connect drive shaft. Refer to RAX-14, "Removal and Installation" in “RAX Rear axle/Drive shaft”.

BRC-52
[ESP/TCS/ABS]
ON-VEHICLE SERVICE

ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionEFS0019R
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
CAUTION:
To adjust neutral position of steering angle sensor, make sure to use CONSULT-II.
(Adjustment cannot be done without CONSULT-II.)
1. Stop vehicle with front wheels in straight-ahead position.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector on vehicle, and turn ignition
switch ON (do not start engine).
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
3. Touch “ABS”, “WORK SUPPORT” and “ST ANGLE SENSOR ADJUSTMENT” on CONSULT-II screen in
this order. Refer to BRC-79, "
CONSULT-II BASIC OPERATION 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 OFF, then turn it ON again.
CAUTION:
Be sure to carry out 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 deg. If value is more than specification, repeat steps 1
to 7.
9. Erase memory of ESP/TCS/ABS control unit and ECM.
10. Turn ignition switch OFF.
Situation Adjustment of Steering Angle Sensor Neutral Position
Removing/Installing ESP/TCS/ABS control unit−
Replacing ESP/TCS/ABS control unit−
Removing/Installing steering angle sensor×
Removing/Installing steering components×
Removing/Installing suspension components×
Change tyre to new ones–
Tyre rotation–
Adjusting wheel alignment×
SFIA0371E

SYSTEM DESCRIPTION
BRC-53
[ESP/TCS/ABS]
C
D
E
G
H
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K
L
MA
B
BRC

SYSTEM DESCRIPTIONPFP:00000
System DiagramEFS0019X
ESP FunctionEFS0019W
1. The Electronic Stability Program is called the ESP for short. ESP is indicated as ESP on CONSULT-II
screen.
2. In addition to the ABS/TCS function, ESP detects a driver's steering operation amount and brake opera-
tion amount from steering angle sensor and pressure sensor. Using the information from yaw rate/side G
sensor and wheel sensors, ESP judges the driving condition (conditions of understeer and oversteer) to
improve the stability by controlling brake on 4 wheels and engine output.
3. During ESP operation, SLIP indicator lamp flashes to inform the driver of the operation.
CAUTION:

During ESP operation, body and the brake pedal lightly vibrate and their mechanical noise may be
heard. This is a normal condition.

If vehicle is rotated on a turn table, or rolled and rocked on a ship, the ABS warning lamp,
ESP OFF indicator lamp, and SLIP indicator lamp may turn on. In this case, start engine on a nor-
mal road again. If the ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp turn
off after the restart, it is normal.

When driving in a steep slope such as a bank, ABS warning lamp, ESP OFF indicator lamp, and
SLIP indicator lamp may turn on. In this case, start the engine on a normal road again. If ABS
warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp turn off after the restart, it is nor-
mal.
TCS FunctionEFS0019V
1. With the wheel sensor signals from 4 wheels, the ESP/TCS/ABS control unit detects a wheel spin. If a
wheel spins, the control unit controls brake fluid pressure to the spinning wheel, and cuts the fuel to the
engine. It also closes the throttle valve to reduce the engine torque. Furthermore, throttle position is con-
trolled to the appropriate engine torque.
2. If a wheel spins, the TCS system works and function by applying brake fluid pressure to the spinning
wheel.
SFIA2012E

BRC-56
[ESP/TCS/ABS]
CAN COMMUNICATION

CAN COMMUNICATIONPFP:23710
System DescriptionEFS0067I
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communication speed and excellent error detection ability. Many elec-
tronic control units are equipped onto a vehicle, and each control unit shares information and links with other
control units during operation (not independent). In CAN communication, control units are connected with 2
communication lines (CAN H line, CAN L line) allowing a high rate of information transmission with less wiring.
Each control unit transmits/receives data but selectively reads required data only.
CAN Communication UnitEFS0067J
TYPE 4/TYPE 5
System diagram
Input/output signal chart
T: Transmit R: Receive Body typeWagon
Axle4WD 2WD
Engine YD22DDTi QR25DE YD22DDTi
Transmission M/T A/T M/T
Brake controlESP
CAN system type 4 5 6 9
ECM×× × ×
TCM×
ESP/TCS/ABS control unit×× × ×
ABS actuator and electric unit (control unit)
Steering angle sensor×× × ×
4WD control unit×× ×
Combination meter×× × ×
PKIA9634E
Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
4WD mode indicator lamp signalTR
4WD warning lamp signalTR
A/C compressor feedback signal*
2TR

CAN COMMUNICATION
BRC-57
[ESP/TCS/ABS]
C
D
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H
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L
MA
B
BRC

*1: YD engine models only
*2: QR engine models only
TYPE 6
System diagram
Input/output signal chart
T: Transmit R: Receive A/C switch signal*
1RT
ABS warning lamp signal T R
Accelerator pedal position signal T R R
Brake warning lamp signal T R
Engine coolant temperature signal TR
Engine speed signal T R R R
ESP OFF indicator lamp signal T R
Glow indicator lamp signal*1 TR
MI signal TR
Stop lamp switch signal T R
Vehicle speed signalTRR
RT
SLIP indicator lamp signal T R
Parking brake switch signalRT
Steering angle sensor signal R T
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR Signals ECMESP/TCS/ABS
control unitSteering angle
sensor4WD control
unitCombination
meter
PKIA9635E
Signals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4WD control
unitCombination
meter
4WD mode indicator lamp signalTR
4WD warning lamp signalTR
A/C compressor feedback signal TR

BRC-58
[ESP/TCS/ABS]
CAN COMMUNICATION

TYPE 9
System diagram
A/T position indicator lamp signal T R R
A/T self-diagnosis signal R T
ABS warning lamp signal T R
Accelerator pedal position signal T R R
Brake warning lamp signal T R
Closed throttle position signal T R
Engine and A/T integratedTR
RT
Engine coolant temperature signal TR
Engine speed signal T R R R
ESP OFF indicator lamp signal T R
MI signal TR
O/D OFF indicator signal T R
Output shaft revolution signal R T
Overdrive control switch signal R T
P·N range signal R T
SLIP indicator lamp signal T R
Steering angle sensor signal R T
Stop lamp switch signalRT
TR
Vehicle speed signalTRR
RT
Parking brake switch signalRT
Wide open throttle position signal T R
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR Signals ECM TCMESP/TCS/
ABS control
unitSteering
angle sensor4WD control
unitCombination
meter
PKIC0343E

CAN COMMUNICATION
BRC-59
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Input/output signal chart
T: Transmit R: Receive
Signals ECM ESP/TCS/ABS control unit Steering angle sensor Combination meter
A/C switch signal RT
ABS warning lamp signal T R
Accelerator pedal position signal T R
Brake warning lamp signal T R
Engine coolant temperature signal TR
Engine speed signal T R R
ESP OFF indicator lamp signal T R
Glow indicator lamp signal TR
MI signal TR
Vehicle speed signalTR
RT
SLIP indicator lamp signal T R
Steering angle sensor signal R T
ASCD SET lamp signal TR
ASCD CRUISE lamp signal TR

TROUBLE DIAGNOSIS
BRC-77
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Control Unit Input/Output Signal StandardEFS005W2
REFERENCE VALUE FROM CONSULT-II
CAUTION:
The displayed item is the data calculated by the control unit, so it may indicate a normal value even if
an output circuit (harness) is open or shorted.
Data monitor item ContentsData monitor
(Reference) Check items
for malfunction
ConditionReference value in
normal operation
FR RH SENSOR
FR LH SENSOR
RR RH SENSOR
RR LH SENSORWheel speed Vehicle stopped 0 [km/h]
Wheel sensor circuit
During driving (Note 1)Almost in accor-
dance with the
speedometer dis-
play (within ±10%)
ACCEL POS SIGOpen/close condition
of throttle valve (linked
with accelerator pedal)Accelerator pedal not
depressed (ignition switch is
ON)0%Control unit communica-
tion circuit between the
ESP/TCS/ABS control
unit and ECM Accelerator pedal depressed
(ignition switch is ON)0 – 100%
ENG RPMWith the engine run-
ningWith the engine stopped 0rpm
Engine speed signal cir-
cuit
Engine runningAlmost in accor-
dance with
tachometer display
STR ANGLE SIGSteering wheel angle
detected by steering
angle sensorStraight-ahead condition Approx. 0 °
Steering angle sensor
and circuit
Steering – 720 to 720°
YAW RATE SENYaw rate detected by
yaw rate sensorVehicle stopped Approx. 0 d/s
Yaw rate sensor and cir-
cuit
During driving – 70 to 70d/s
SIDE G-SENSORTransverse accelera-
tion detected by side G
sensorVehicle stopped
Approx. 0 m/s
2
Side G sensor and circuit
During driving
– 24.3 to 24.1m/s2
PRESS SENSORBrake fluid pressure
detected by pressure
sensorWith the ignition switch
turned ON and brake pedal
released.Approx. 0 bar
Pressure sensor and cir-
cuit
With the ignition switch
turned ON and brake pedal
depressed.– 40 to 300bar
BATTERY VOLTBattery voltage sup-
plied to the ESP/TCS/
ABS control unitIgnition switch ON 10 – 16VESP/TCS/ABS control
unit power supply circuit
and ground circuit
MOTOR RELAYMotor relay
ON/OFF conditionABS not activated. OFF
Motor relay and circuit
ABS activated. ON
ACTUATOR RLYActuator relay
ON/OFF conditionIgnition ON and Vehicle
stopped.OFF
Actuator relay and circuit
Engine running and Vehicle
stopped.ON
STOP LAMP SWOperating status of
brake pedalDepress brake pedal. ON
Stop lamp switch circuit
Release the brake pedal. OFF
PARK BRAKE SW Parking brake statusParking brake activated ON
Parking brake switch cir-
cuit
Parking brake not activated OFF