check engine NISSAN X-TRAIL 2003 Electronic Repair Manual
[x] Cancel search | Manufacturer: NISSAN, Model Year: 2003, Model line: X-TRAIL, Model: NISSAN X-TRAIL 2003Pages: 3066, PDF Size: 51.47 MB
Page 914 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-46
[4WD/ABS]
TROUBLE DIAGNOSIS
lStop the engine. Restart the engine and drive the vehicle at 20 km/h or faster for approximately 200
seconds. Confirm the 4WD warning lamp flashes slowly.
(Check if NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-46
[4WD/ABS]
TROUBLE DIAGNOSIS
lStop the engine. Restart the engine and drive the vehicle at 20 km/h or faster for approximately 200
seconds. Confirm the 4WD warning lamp flashes slowly.
(Check if](/img/5/57402/w960_57402-913.png)
BRC-46
[4WD/ABS]
TROUBLE DIAGNOSIS
lStop the engine. Restart the engine and drive the vehicle at 20 km/h or faster for approximately 200
seconds. Confirm the 4WD warning lamp flashes slowly.
(Check if the value of IMPROPER SIZE TIRE MONITOR is 8 mm or more.)
When the tire size is normal, the value of IMPROPER SIZE TIRE MONITOR will change from 8 mm or
more to 0 - 4 mm (normal condition) after the vehicle is driven 20 km/h or faster for approximately 5
seconds.
2. Tire inspection
lInspection of tire air pressure
lWear condition
lCheck size of the front and rear tires. (No excessive difference should be observed.) Refer toGI-46,
"Wheels&Tire s"
Vehicle does not enter 4WD mode even though 4WD warning lamp is off.EFS001BX
1. Check using the data monitor function of the CONSULT.
Perform inspection by the data monitor function of the CONSULT.
–Check if the vehicle operation changes to 2WD, AUTO, and LOCK modes.
–Check current supplied to the E-TS solenoid valve in AUTO mode.
2. Check using the active test function of the CONSULT.
Using active test mode of CONSULT, supply current to the E-TS solenoid valve and check that the monitor
current becomes close to this supply current.
lThe 4WD/ABS control unit is normal when the difference between E-TS solenoid valve current and the
monitor current is within±10%.
It is necessary to inspect the electronically controlled coupling assembly.
Tight-corner braking symptom occurs when the vehicle is started in AUTO
mode (4WD warning lamp remain OFF).
EFS001BY
1.THROTTLE POSITION SENSOR AND HARNESS INSPECTION
Check accelerator pedal stroke.
Is inspection result OK?
YES >> Perform self-diagnosis again.
NO >> Malfunctioning throttle position sensor harness
E-TS actuator relay (4WD solenoid actuator relay) turns ON/OFF frequently.EFS001BZ
1.SELF-DIAGNOSIS RESULT IS E-TS ACTUATOR RELAY (4WD ACTUATOR RELAY) ON ERROR
AND OFF ERROR.
Is self-diagnosis result [ON error and OFF error]?
Is inspection result OK?
YES >> GO TO 2.
NO >> Repair or replace as necessary.
2.E-TS ACTUATOR RELAY (4WD SOLENOID ACTUATOR RELAY) AND HARNESS INSPECTION
Is self-diagnosis result [ON error and OFF error]?
Is inspection result OK?
YES >> Perform self-diagnosis again.
NO >> Malfunctioning E-TS actuator relay (4WD solenoid actuator relay) harnessAccelerator pedal not depressed: Approx. 0 A
Accelerator pedal depressed: Approx. 2.8 A
Example) Monitor value becomes Approx. 1 A for E-TS solenoid current 1 A setting.
Page 920 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-52
[ESP/TCS/ABS]
PRECAUTIONS
[ESP/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS0019N
The Supplemental Restrai NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-52
[ESP/TCS/ABS]
PRECAUTIONS
[ESP/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS0019N
The Supplemental Restrai](/img/5/57402/w960_57402-919.png)
BRC-52
[ESP/TCS/ABS]
PRECAUTIONS
[ESP/TCS/ABS]PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
EFS0019N
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WAR NIN G:
lTo avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.
lImproper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.
lDo not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow harness connector.
Precautions for Brake SystemEFS0019O
lRecommended fluid is brake fluid “DOT 3” or “DOT 4”.
lNever reuse drained brake fluid.
lBe careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is splashed
on painted areas, wash it away with water immediately.
lNever use mineral oils such as gasoline or kerosene. They will ruin rubber parts of hydraulic system.
lUse flare nut wrench when removing and installing brake tubes.
lAlways torque brake lines when installing.
lBefore working, turn the ignition switch OFF and disconnect the
connectors for the ESP/TCS/ABS actuator and control unit or
the battery terminals.
lBurnish the brake contact surfaces after refinishing or replacing
drums or rotors, after replacing pads or linings, or if a soft pedal
occurs at very low mileage. Refer toBR-10, "
Brake Burnishing
Procedure".
WAR NIN G:
Clean brakes with a vacuum dust collector to minimize risk
of health hazard from powder caused by friction.
Precautions for Brake ControlEFS0019P
lDuring the EPS/TCS/ABS operation, the brake pedal vibrates lightly and its mechanical noise may be
heard. This is a normal condition.
lJust after starting the vehicle after ignition switch ON, the brake pedal may vibrate or the motor operating
noise may be heard from the engine compartment. This is a normal status of the operation check.
lThe stopping distance may be longer than that of vehicles without ABS when the vehicle drives on rough,
gravel, or snowy (fresh deep snow) road.
lIf a malfunction is indicated by the ABS warning lamp, or other warning lamps, collect the necessary infor-
mation from the customer (what symptoms are present under what conditions) and find out the possible
causes before starting the service. Besides the electrical system inspection, check the booster operation,
brake fluid level, and oil leaks.
lIf the tire size and type are used in a improper combination, or the brake pads are not NISSAN genuine
parts, the stopping distance or steering stability may deteriorate.
lIf there is a radio, antenna, or antenna lead-in wire (including wiring) near the control unit, the ESP/TCS/
ABS function may have a malfunction or error.
lIf aftermarket parts (e.g. Car stereo equipment, CD player) have been installed, check the electrical har-
nesses for pinches, open, and improper wiring.
SBR686C
Page 925 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual GENERAL INFORMATION
BRC-57
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lWhen starting the engine, or just after starting the vehicle, the brake pedal may vibrate or the
motor operating noise may be heard NISSAN X-TRAIL 2003 Electronic Repair Manual GENERAL INFORMATION
BRC-57
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lWhen starting the engine, or just after starting the vehicle, the brake pedal may vibrate or the
motor operating noise may be heard](/img/5/57402/w960_57402-924.png)
GENERAL INFORMATION
BRC-57
[ESP/TCS/ABS]
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lWhen starting the engine, or just after starting the vehicle, the brake pedal may vibrate or the
motor operating noise may be heard from the engine compartment. This is a normal status of the
operation check.
lThe stopping distance may be longer than that of vehicles without ABS when the vehicle drives on
rough, gravel, or snowy (fresh deep snow) road.
TCS FunctionsEFS0019V
1. With the wheel speed 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
controlled to the appropriate engine torque.
2. If a wheel spins, the TCS system works same as LSD (Limited Slip Differential) function applying brake
fluid pressure to the spinning wheel.
3. During TCS operation, it informs a driver of system operation by flashing SLIP indicator lamp.
CAUTION:
lDuring TCS operation, the body and the brake pedal lightly vibrate and the mechanical noise may
be heard. This is a normal condition.
lDepending on road circumstances, the driver may have a sluggish feel. This is not abnormal,
because the optimum traction has the highest priority by TCS operation.
lWhen 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.
ESP FunctionsEFS0019W
1. The Electronic Stability Program is called the ESP for short.
The ESP is indicated as the VDC (the Vehicle Dynamics Control) on the CONSULT-II screen.
2. In addition to the ABS/TCS function, ESP detects the driver's steering operation amount and brake opera-
tion amount from the steering angle sensor and pressure sensor. Using the information from the yaw rate/
side G sensor and wheel speed sensors, ESP judges the driving condition (conditions of understeer and
oversteer) to improve the stability by controlling the brake on 4 wheels and engine output.
3. During ESP operation, the SLIP indicator lamp flashes to inform the driver of the operation.
CAUTION:
lDuring ESP operation, the body and the brake pedal lightly vibrate and their mechanical noise
may be heard. This is a normal condition.
lIf the 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 the engine on a
normal road again. If the ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp
turn OFF after the restart, it is normal.
lWhen driving in a steep slope such as a bank, the 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 the
ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp turn OFF after the restart, it
is normal.
Page 939 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-71
[ESP/TCS/ABS]
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Control Unit Input/Output Signal StandardEFS001A6
STANDARDS USING A CIRCUIT TESTER AND OSCILLOSCOPE
CAUTION:
Connect the connectors fo NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-71
[ESP/TCS/ABS]
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Control Unit Input/Output Signal StandardEFS001A6
STANDARDS USING A CIRCUIT TESTER AND OSCILLOSCOPE
CAUTION:
Connect the connectors fo](/img/5/57402/w960_57402-938.png)
TROUBLE DIAGNOSIS
BRC-71
[ESP/TCS/ABS]
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Control Unit Input/Output Signal StandardEFS001A6
STANDARDS USING A CIRCUIT TESTER AND OSCILLOSCOPE
CAUTION:
Connect the connectors for the ESP/TCS/ABS control unit and actuator, and turn the ignition switch
ON.
SFIA0363E
Measure-
ment termi-
nalMeasuring point Standard value (Note 1)(Reference) Check
items for malfunc-
tion
+–
1
Body
groundPower supply Ignition switch ON Battery voltage (Approx. 12V)
Control unit power
supply circuit
2Actuator motor relay,
actuator relay power
supply and steering
angle sensor power sup-
plyIgnition switch ON Battery voltage (Approx. 12V)
7 Actuator motor relayActuator motor being driven
(²Active test²mode with CON-
SULT-II)Approx. 0V
Actuator motor,
motor relay, and
circuit
Actuator motor while the vehicle
is stoppedBattery voltage (Approx. 12V)
36 Actuator relayWhen actuator relay is active.
(the engine running)Approx. 0V
Actuator relay and
circuit
When actuator relay is inactive.
(Fail-safe, engine starts.)Battery voltage (Approx. 12V)
20 Actuator motor monitorWhen actuator relay is active.
(the engine running)Battery voltage (Approx. 12V)
Actuator motor
monitor circuit
When actuator relay is inactive.
(Fail-safe, engine starts.)Approx. 0V
Page 942 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-74
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
(Note 1): When the standard value is checked using a circuit tester for voltage measurement, the connector terminals should not extend
forcefully.
(Note 2): Chec NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-74
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
(Note 1): When the standard value is checked using a circuit tester for voltage measurement, the connector terminals should not extend
forcefully.
(Note 2): Chec](/img/5/57402/w960_57402-941.png)
BRC-74
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
(Note 1): When the standard value is checked using a circuit tester for voltage measurement, the connector terminals should not extend
forcefully.
(Note 2): Check the pressure of the tire in normal condition.
(Note 3): ON/OFF timing of the ABS warning lamp
ON: When the ignition switch is turned ON (before engine start) or a malfunction is detected.
OFF: 2 seconds after the engine started (the system is in normal condition).
(Note 4): ESP OFF indicator lamp ON/OFF timing
ON: When the ignition switch is turned ON (before engine start) or a malfunction is detected, if the ESP OFF switch is ON.
OFF: 2 seconds after the engine started (the system is in normal condition) and ESP OFF switch is OFF.67
Body
groundPressure sensorIgnition switch ON Approx. 0V
Pressure sensor
and circuit 68When ignition switch ON and
brake pedal released.Approx. 0.6V
69 Ignition switch ON Approx. 0V
18 Side G sensor Ignition switch ON Approx. 2.5VYaw rate /Side G
sensor and circuit
34
Yaw rate/Side G sensorIgnition switch ON Battery voltage (Approx. 12V)
Yaw rate /Side G
sensor and circuit 77 Ignition switch ON
78 Ignition switch ON Approx. 2.5V
79
Ya w r a t e s e n s o rIgnition switch ON
Ya w r a t e s e n s o r
and circuit
80 Ignition switch ON Approx. 0V
30 ABS warning lampABS warning lamp turns on
(Note 3)Approx. 0V
ABS warning lamp
and circuit
ABS warning lamp turns off
(note 3)Battery voltage (Approx. 12V)
70 ESP OFF indicator lampESP OFF indicator lamp turns
on (Note 4)Approx. 0V
ESP OFF warning
lamp and circuit
ESP OFF indicator lamp turns
off (note 4)Battery voltage (Approx. 12V)
83 SLIP indicator lampWhen SLIP indicator lamp is ON
(Note 5)Approx. 0V
SLIP indicator
lamp and circuit
SLIP indicator lamp turns off
(note 5)Battery voltage (Approx. 12V)
40 Brake fluid level warning
switchBrake fluid is not enough Battery voltage (Approx. 12V) Brake fluid level
warningswitchand
circuit
Brake fluid is enough Approx. 0V
76Body
groundParking brake signalApply the parking brake. Battery voltage (Approx. 12V)
Parking brake
switch and circuit
Release the parking brake. Approx. 0V Measure-
ment termi-
nalMeasuring point Standard value (Note 1)(Reference) Check
items for malfunc-
tion
+–
SFIA0150E
SFIA0151E
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![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-75
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(Note 5): ON/OFF timing of the SLIP indicator lamp
ON: When the ignition switch is turned ON (before engine start) or a malfunction is NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
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(Note 5): ON/OFF timing of the SLIP indicator lamp
ON: When the ignition switch is turned ON (before engine start) or a malfunction is](/img/5/57402/w960_57402-942.png)
TROUBLE DIAGNOSIS
BRC-75
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(Note 5): ON/OFF timing of the SLIP indicator lamp
ON: When the ignition switch is turned ON (before engine start) or a malfunction is detected.
OFF: 2 seconds after the engine started (the system is in normal condition) and the ESP/TCS function is inactive.
Flashing: ESP/TCS function is active during driving.
STANDARDS WITH 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 (Note 1)Vehicle stopped 0 [km/h (MPH)]
Wheel speed sensor cir-
cuit
During drivingAlmost 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 angle
detected by steering
angle sensorStraight-ahead condition Approx. 0 deg
Steering angle sensor
and circuit
Steering – 720 to 720deg
YAW R AT E S E NYaw 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
–24.3to24.1m/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-
pliedtotheESP/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
Page 944 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-76
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
OFF SWESP OFF SW
ON/OFF conditionESP OFF switch ON
(When ESP OFF indicator
lamp is ON.)ON
ESP OFF switch circuit
ESP OFF switch OFF
(When ESP OFF indicator
lamp NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-76
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
OFF SWESP OFF SW
ON/OFF conditionESP OFF switch ON
(When ESP OFF indicator
lamp is ON.)ON
ESP OFF switch circuit
ESP OFF switch OFF
(When ESP OFF indicator
lamp](/img/5/57402/w960_57402-943.png)
BRC-76
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
OFF SWESP OFF SW
ON/OFF conditionESP OFF switch ON
(When ESP OFF indicator
lamp is ON.)ON
ESP OFF switch circuit
ESP OFF switch OFF
(When ESP OFF indicator
lamp is OFF.)OFF
ABS WARN LAMPABS warning lamp sta-
tus (Note 2)When ABS warning lamp is
ON.ON
ABS warning lamp circuit
When ABS warning lamp is
OFF.OFF
OFF LAMPESP OFF indicator
lamp status (Note 3)When ESP OFF indicator
lamp is ON.ON
ESP OFF indicator lamp
circuit
When ESP OFF indicator
lamp is OFF.OFF
SLIP LAMPSLIP indicator lamp
status (Note 4)When SLIP indicator lamp is
ONON
SLIP indicator lamp cir-
cuit
When SLIP indicator lamp is
OFFOFF
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 SOLSolenoid valve opera-
tionActuator (solenoid valve) is
active (²Active Test²with
CONSULT-II) or actuator relay
is inactive (in fail-safe mode).ON
Solenoid valve and cir-
cuit
When the actuator (solenoid
valve) is not active and actua-
tor relay is active (ignition
switch ON).OFF
USV [FR-PL]
UISV [FL-RR]
HSV [FR-RL]
HSV [FL-RR]ESP switch-over sole-
noid valve statusWhen the actuator (switch-
over solenoid valve) is active
(²Active test²with CONSULT-
II) or the actuator relay is inac-
tive (when fail-safe mode).ON
Switch-over solenoid
valve and circuit
When the actuator (switch-
over solenoid valve) is inactive
or the actuator relay is active
(ignition switch ON).OFF
V/R OUTPUTActuator relay acti-
vated
(ON/OFF)When the actuator relay is
active (the engine is running).ON
Actuator relay and circuit When the actuator relay is not
active (before the engine get
started and in the fail-safe
mode).OFF
M/R OUTPUTActuator motor and
motor relay status (ON/
OFF)When the actuator motor and
motor relay are active (²Active
test²with CONSULT-II).ON
Actuator motor, motor
relay, and circuit
When the actuator motor and
motor relay are inactive.OFF Data monitor item ContentsData monitor
(Reference) Check items
for malfunction
ConditionReference value in
normal operation
Page 945 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-77
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(Note 1): Check the pressure of the tire in normal condition.
(Note 2): ON/OFF timing of the ABS warning lamp
ON: For approximately 0. NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
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(Note 1): Check the pressure of the tire in normal condition.
(Note 2): ON/OFF timing of the ABS warning lamp
ON: For approximately 0.](/img/5/57402/w960_57402-944.png)
TROUBLE DIAGNOSIS
BRC-77
[ESP/TCS/ABS]
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(Note 1): Check the pressure of the tire in normal condition.
(Note 2): ON/OFF timing of the ABS warning lamp
ON: For approximately 0.5 seconds after the ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 0.5 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 0.5 seconds after the ignition switch is turned ON, or when a malfunction is detected ESP OFF switch is ON.
OFF: Approximately 0.5 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 0.5 seconds after the ignition switch is turned ON, or when a malfunction is detected.
OFF: Approximately 0.5 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.
Functions of CONSULT-IIEFS001A7
CONSULT-II MAINLY FUNCTION APPLICATION TO ESP/TCS/ABS
´: Applicable
–: Not applicableFLUID LEV SWBrake fluid level warn-
ingswitchstatus.When brake fluid level warning
switch is ON.ON
Brake fluid level warning
switch, brake warning
lamp and circuit. When brake fluid lever warning
switch is OFF.OFF
EBD FAIL SIG
ABS FAIL SIG
TCS FAIL SIG
VDC FAIL SIGSystem fail signal sta-
tusMalfunctions condition
(When system failed)OFFEBD system
ABS system
TCS system
ESP system Data monitor item ContentsData monitor
(Reference) Check items
for malfunction
ConditionReference value in
normal operation
Item Self-diagnosis Data monitor Active test
Wheel speed sensors´´–
Solenoid valves´´´
Switch-over solenoid valves´´´
Stop lamp switch´´–
Ya w r a te s e n s o r´´´
Side G sensor´´´
Press sensor´´´
Steering angle sensor´´´
Actuator relay´´´
Motor relay´´´
ABS warning lamp –´´
Battery voltage´´–
ESP/TCS/ABS C/U´––
ESP/TCS/ABS actuator motor´´´
CAN communication´´–
Engine speed signal –´–
ESP OFF switch –´–
ESP OFF indicator lamp –´´
SLIP indicator lamp –´´
Throttle angle –´–
Page 946 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-78
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
SELF-DIAGNOSIS
Description
If a malfunction is detected in the system, the ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator
lamp on the meter turn on NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-78
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
SELF-DIAGNOSIS
Description
If a malfunction is detected in the system, the ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator
lamp on the meter turn on](/img/5/57402/w960_57402-945.png)
BRC-78
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
SELF-DIAGNOSIS
Description
If a malfunction is detected in the system, the ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator
lamp on the meter turn on. In this case, perform the self-diagnosis as follows:
Procedure
1. Perform aBRC-89, "Basic Inspection"using information from the customer.
2. After the ignition switch is turned OFF, connect the CONSULT-II
connector to the vehicle-side data link connector. The data link
connector is on the lower instrument cover).
3. Start the engine and drive at Approx. 30 km/h (19 MPH) for
approx. 1 minute.
4. After stopping the vehicle, with the engine still idling, touch “
START”, “ABS”, “SELF-DIAG RESULTS” on the CONSULT-II
screen in this order.
CAUTION:
Just after starting the engine, or turning the ignition switch
ON,²ABS²may not be displayed on the system selection
screen even if²START²is touched. In this case, start the
self-diagnosis again from step 2. If it cannot be shown after
several attempts, the ESP/TCS/ABS control unit may mal-
function. Repair or replace the control unit.
5. The self-diagnosis result is displayed. (If necessary, touch²PRINT²to print the self-diagnosis result.)
lWhen²NO FAILURE²is shown, check the ABS warning lamp, ESP OFF indicator lamp, SLIP indicator
lamp. Refer toBRC-88, "
For Correct and Quick Diagnosis".
lCONSULT-II self-diagnosis results are displayed without regard to occurrence timing. In some case, the
later ones (timing value is small) appear on the next screen.
6. Go to appropriate²Inspection²chart according to²Self-Diagnostic Items to Result Mode²and repair or
replace as necessary.
7. Start the engine and drive at Approx. 30 km/h (19 MPH) for Approx. 1 minute.
CAUTION:
Check again to make sure that there is NO MALFUNCTION on other parts.
8. Turn the ignition switch OFF to prepare for erasing the memory.
9. Start the engine and touch²START²,²ABS²,²SELF-DIAG RESULTS²and²ERASE²on CONSULT-II
screen in this order to ease the memory.
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![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
(note) “ACTUATOR RLY” on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator motor relay and circuit.
NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
(note) “ACTUATOR RLY” on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator motor relay and circuit.](/img/5/57402/w960_57402-948.png)
TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
(note) “ACTUATOR RLY” on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator motor relay and circuit.
DATA MONITOR
For details of the data monitor function, refer to the CONSULT-II Instruction Manual.
Procedure
1. Turn the ignition switch OFF.
2. Connect the CONSULT-II connector to the vehicle-side data link connector.
3. Turn the ignition switch ON.
4. Touch²START²on the display.
5. Touch²ABS²on the display.
CAUTION:
Just after the engine is started, or the ignition switch is
turned ON,²ABS²may not be displayed on the system
selection screen even if²START²is touched. In this case,
start the self-diagnosis again from step 2.
6. Touch²DATA MONITOR².
7. The data monitor item selection screen is displayed, and touch
one of “ECU INPUT SIGNALS” “MAIN SIGNALS”, “CAN DIAG
SUPPORT MNTR” or “SELECTION FROM MENU”. Refer to
BRC-82, "
Data Monitor Items to be Displayed".
8. Touch²START².
9. Screen of data monitor is displayed.
SIDE G-SEN CIRCUITSide G sensor is abnormal, or the signal line of side G sensor is
open or shorted.Yaw rate /Side G sensor
and circuit. Refer to
BRC-95
EMERGENCY BRAKEESP/TCS/ABS control unit malfunction (pressure increase is too
much or too little.)ESP/TCS/ABS control
unit. Refer toBRC-106
CONTROLLER FAILURE ESP/TCS/ABS internal malfunction of control unitESP/TCS/ABS control
unit. Refer toBRC-92
CAN COMM CIRCUIT
lCAN communication line is open or shorted.
lESP/TCS/ABS control unit internal malfunction.
lBattery voltage for EMC is interrupted instantaneously for
Approx. 0.5 seconds or more.Communication circuit
between ESP/TCS/ABS
control unit and units.
Refer toBRC-108
BR FLUID LEVEL LOWBrake fluid level drops or communication line between the ESP/
TCS/ABS control unit and the brake fluid level warning switch is
open or shorted.Communication circuit
between the ESP/TCS/
ABS control unit and the
brake fluid level warning
switch.
Reservoir tank fluid.
Refer toBRC-107
ENGINE SIGNAL 1-4, 6 Major engine components are abnormalEngine system. Refer to
BRC-92
Self-Diagnostic item Malfunction detecting condition Check route
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