2003 NISSAN X-TRAIL Service Repair Manual

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Page 2865 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual ON-VEHICLE SERVICE
BRC-51
[ESP/TCS/ABS]
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ON-VEHICLE SERVICEPFP:00000
Adjustment of Steering Angle Sensor Neutral PositionEFS0019R
In case of doing work that applies to the

ON-VEHICLE SERVICE
BRC-51
[ESP/TCS/ABS]
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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-77, "
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 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 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 4 tires to new ones –
Tire rotation–
Adjusting wheel alignment×
SFIA0371E

Page 2866 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual BRC-52
[ESP/TCS/ABS]
SYSTEM DESCRIPTION

SYSTEM DESCRIPTIONPFP:00000
System DiagramEFS0019X
ESP FunctionEFS0019W
1. The Electronic Stability Program is called the ESP for short.
ESP is indicated as E

Page 2867 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual SYSTEM DESCRIPTION
BRC-53
[ESP/TCS/ABS]
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3. During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
CAUTION:
During TCS operation, b

SYSTEM DESCRIPTION
BRC-53
[ESP/TCS/ABS]
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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 abnormal,
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.

Page 2868 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual BRC-54
[ESP/TCS/ABS]
SYSTEM DESCRIPTION

Hydraulic Circuit DiagramEFS0019T
SFIA1663E

Page 2869 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CAN COMMUNICATION
BRC-55
[ESP/TCS/ABS]
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CAN COMMUNICATIONPFP:23710
System DescriptionEFS0055T
CAN (Controller Area Network) is a serial communication line for real time app

Page 2870 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual BRC-56
[ESP/TCS/ABS]
CAN COMMUNICATION

Input/output signal chart
T: Transmit R: Receive
*1: YD engine models only
*2: QR engine models only
TYPE 5
System diagram
Input/output signal chart
T: Trans

Page 2871 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual CAN COMMUNICATION
BRC-57
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A/T position indicator lamp signal T R R
O/D OFF indicator signal T R
Overdrive control switch signal R T
Engine speed signal T R R

Page 2872 of 4179

NISSAN X-TRAIL 2003 Service Repair Manual BRC-58
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

TROUBLE DIAGNOSISPFP:00004
How to Proceed With DiagnosisEFS004HQ
BASIC CONCEPT
Most important point to perform diagnosis is to understand systems (control and

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