2005 NISSAN X-TRAIL steering

BRC-54
[ESP/TCS/ABS]
SYSTEM DESCRIPTION

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

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

Depending on road circumstances, a driver may have a sluggish feel. This is not malfunction,
because the optimum traction has the highest priority by TCS operation.

When the vehicle is passing through a road where the surface friction coefficient varies, down-
shifting or depressing the accelerator pedal fully may activate TCS temporarily.
ABS FunctionEFS0019U
1. In cases of braking suddenly or braking on slippery road (ice road), ABS functions prevent wheels from
lock, improve the stability in sudden braking, and make efficient avoidance of obstacles with steering
manipulation by detecting wheel speed and controlling brake fluid pressure.
2. EBD is integrated in ESP/TCS/ABS system.
CAUTION:

During ABS operation, brake pedal lightly vibrates and its mechanical noise may be heard. This is
a normal condition.

When starting engine, or just after starting vehicle, brake pedal may vibrate or the motor operating
noise may be heard from engine compartment. This is a normal status of the operation check.

The stopping distance may be longer than that of vehicles without ABS when vehicle drives on
rough, gravel, or snowy (fresh deep snow) road.
EBD FunctionEFS004HO

Electronic Brake Distributor is a function that detects subtle slippages between front and rear wheels dur-
ing braking, and it improves handling stability by electronically controlling the brake fluid pressure which
results in reduced rear wheel slippage.

In case of electrical system break down, the fail-safe function is activated, EBD and ABS becomes inoper-
ative, and ABS warning lamp and brake warning lamp are turned on.

Electrical System Diagnosis by CONSULT-II is available.
Fail-Safe FunctionEFS004HP
ESP/ TCS SYSTEM
In case of throttle control system trouble, ESP OFF indicator lamp and SLIP indicator lamp are turned on, and
the condition of vehicle is the same as the condition of vehicles without ESP/TCS equipment. In case of trou-
ble to the throttle control system, the ABS control continues to operate normally without ESP/TCS control.
CAUTION:
If the fail-safe function is activated, then perform the self- diagnosis for ESP/TCS/ABS control system.
ABS, EBD SYSTEM
In case of electrical malfunctions with the ABS, ABS warning lamp, ESP OFF indicator lamp and SLIP indica-
tor lamp will turn on. In case of electrical malfunctions with the EBD, brake warning lamp, ABS warning lamp,
ESP OFF indicator lamp and SLIP indicator lamp will turn on. Simultaneously, the ESP/ TCS/ABS become one
of the following conditions of the fail-safe function.
1. For ABS trouble, only the EBD is activated and the condition of vehicle is the same condition of vehicles
without ESP/TCS/ABS equipment.
2. For EBD trouble, the EBD and ABS become inoperative, and the condition of vehicle is the same as the
condition of vehicles without ESP/TCS/ABS, EBD equipment.
NOTE:
In condition 1 described above, an ABS self-diagnosis sound may be heard. That is a normal condition
because a self-diagnosis for “Ignition switch ON” and “The first starting” are being performed.

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
E
G
H
I
J
K
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

TROUBLE DIAGNOSIS
BRC-79
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

(Note 1): Check the pressure of the tyre in normal condition.
(Note 2): ON/OFF timing of the ABS warning lamp
ON: For approximately 2 seconds after the ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 2 seconds after the ignition switch is turned ON (when the system is in normal operation).
(Note 3): ON/OFF timing of the ESP OFF indicator lamp
ON: For approximately 2 seconds after the ignition switch is turned ON, or when a malfunction is detected ESP OFF switch is ON.
OFF: Approximately 2 seconds after the ignition switch is turned ON (when the system is in normal operation) or when ESP OFF switch
is OFF.
(Note 4): SLIP indicator lamp ON/OFF timing
ON: For approximately 2 seconds after the ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 2 seconds after the ignition switch is turned ON (when the system is in normal operation) and ESP/TCS function is
not activated.
Flashing: ESP/TCS function is active during driving.
CONSULT-II Functions EFS005W3
CONSULT-II MAIN FUNCTION
In a diagnosis function (main function), there are “WORK SUPPORT”, “SELF-DIAG RESULTS”, “DATA MONI-
TOR”, “CAN DIAG SUPPORT MNTR”, “ACTIVE TEST”, “FUNCTION TEST”, “ECU PART NUMBER”.
CONSULT-II BASIC OPERATION PROCEDURE
1. Turn ignition switch OFF.
2. Connect CONSULT-II and CONSULT-II CONVERTER to data link connector.
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. Turn ignition switch ON.
4. Touch “START (NISSAN BASED VHCL)”.
Diagnostic
test modeFunction Reference
WORK SUP-
PORTThis mode enables a technician to adjust some devices faster and more accurately
by following the indications on CONSULT-II.BRC-52, "
Adjustment of
Steering Angle Sensor Neu-
tral Position"
SELF-DIAG
RESULTSSelf-diagnostic results can be read and erased quickly.BRC-81, "SELF-DIAGNOSIS"
DATA MONI-
TORInput/Output data in the ESP/TCS/ABS control unit can be read.BRC-83, "DATA MONITOR"
CAN DIAG
SUPPORT
MNTRThe results of transmit/receive diagnosis of communication can be read. —
ACTIVE TESTDiagnostic Test Mode in which CONSULT-II drives some actuators apart from the
ESP/TCS/ABS control unit and also shifts some parameters in a specified range.BRC-86, "
ACTIVE TEST"
FUNCTION
TESTConducted by CONSULT-II instead of a technician to determine whether each sys-
tem is “OK” or “NG”.—
ECU PART
NUMBERESP/TCS/ABS control unit part number can be read. —
SKIA3098E

BRC-82
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Display Item List
Self-Diagnostic item Malfunction detecting condition Check route
FR LH SENSOR – 1 Circuit of front LH wheel sensor is open.
Wheel sensor and cir-
cuit. Refer to BRC-91
RR RH SENSOR – 1 Circuit of rear RH wheel sensor is open.
FR RH SENSOR – 1 Circuit of front RH wheel sensor is open.
RR LH SENSOR – 1 Circuit of rear LH wheel sensor is open.
FR LH SENSOR – 2 Front LH wheel sensor is shorted or input signal is malfunction.
RR RH SENSOR – 2 Rear RH wheel sensor is shorted or input signal is malfunction.
FR RH SENSOR – 2 Front RH wheel sensor is shorted or input signal is malfunction.
RR LH SENSOR – 2 Rear LH wheel sensor is shorted or input signal is malfunction.
MAIN RELAYDuring the actuator relay operating with OFF, when the actuator
relay turns ON. Or when the control line for the relay is shorted to
the ground.Actuator relay and cir-
cuit. Refer to BRC-103
During the actuator relay operating with ON, when the actuator
relay turns OFF, or when the control line for the relay is open.
STOP LAMP SW Stop lamp switch circuit is open.Stop lamp switch and cir-
cuit. Refer to BRC-105
PRESS SEN CIRCUIT Pressure sensor signal line is open or shorted, or pressure sen-
sor is malfunction.Pressure sensor and cir-
cuit. Refer to BRC-93
ST ANGLE SEN CIRCUIT Neutral position of steering angle sensor is dislocated, or the
steering angle sensor is malfunction.Steering angle sensor
and circuit. Refer to
BRC-95
YAW RATE SENOR Yaw rate sensor is malfunction, or the yaw rate sensor signal line
is open or shorted.Yaw rate/side G sensor
and circuit. Refer to
BRC-97
FR LH IN ABS SOLCircuit of front LH wheel inlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
Solenoid valve and cir-
cuit. Refer to BRC-98
FR LH OUT ABS SOLCircuit of front LH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
RR RH IN ABS SOLCircuit of rear RH wheel inlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
RR RH OUT ABS SOLCircuit of rear RH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
FR RH IN ABS SOLCircuit of front RH wheel inlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
FR RH OUT ABS SOLCircuit of front RH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.
RR LH IN ABS SOLCircuit of rear LH wheel inlet solenoid valve is open or shorted, or
the control line is open or shorted to the power supply or the
ground.
RR LH OUT ABS SOLCircuit of rear LH wheel outlet solenoid valve is open or shorted,
or the control line is open or shorted to the power supply or the
ground.