battery 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 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](/img/5/57402/w960_57402-941.png "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")
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
Page 943 of 3066
![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](/img/5/57402/w960_57402-942.png "NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-75
[ESP/TCS/ABS]
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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")
TROUBLE DIAGNOSIS
BRC-75
[ESP/TCS/ABS]
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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 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.](/img/5/57402/w960_57402-944.png "NISSAN X-TRAIL 2003 Electronic Repair Manual 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.")
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 948 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-80
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
FR LH IN ABS SOLCircuit of the 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.](/img/5/57402/w960_57402-947.png "NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-80
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
FR LH IN ABS SOLCircuit of the 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.")
BRC-80
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
FR LH IN ABS SOLCircuit of the 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 toBRC-97
FR LH OUT ABS SOLCircuit of the 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 the 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 the 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 the 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 the 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 the 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 the 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.
USV LINE [FL-RR]ESP switch-over solenoid valve 1 on the primary side is open cir-
cuit or shorted, or the control line is open or shorted to the power
supply or the ground.
ESP switch-over sole-
noid valve and circuit.
Refer toBRC-97
. USV LINE [FR-RL]ESP switch-over solenoid valve 1 on the secondary side is open
circuit or shorted, or the control line is open or shorted to the
power supply or the ground.
HSV LINE [FL-RR]ESP switch-over solenoid valve 2 on the primary side is open cir-
cuit or shorted, or the control line is open or shorted to the power
supply or the ground.
HSV LINE [FR-RL]ESP switch-over solenoid valve 2 on the secondary side is open
circuit or shorted, or the control line is open or shorted to the
power supply or the ground.
PUMP MOTOR
ACTUATOR RLY (note)During the actuator motor operation with ON, when the actuator
motor turns OFF. Or when the control line for actuator motor relay
is open.Actuator motor, motor
relay, and circuit. Refer
toBRC-100
During the actuator motor operation with OFF, when the actuator
motor turns ON. Or when the control line for relay is shorted to
ground.
ABS SENSOR
[ABNORMAL SIGNAL]Wheel speed sensor input is abnormal.Wheel speed sensor and
circuit. Refer toBRC-90
BATTERY VOLTAGE
[ABNORMAL]ESP/TCS/ABS control unit battery voltage is too low.ESP/TCS/ABS control
unit battery voltage cir-
cuit and ground circuit.
Refer toBRC-104
ST ANGLE SEN SIGNALNeutral position correction of steering angle sensor is not fin-
ished.Neutral position adjust-
ment of steering angle
sensor. Refer toBRC-
106
ST ANG SEN COM CIRCAN communication system or steering angle sensor is abnor-
mal.Steering angle sensor
and CAN communication
circuit. Refer toBRC-108
Self-Diagnostic item Malfunction detecting condition Check route
Page 949 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-81
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(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 "NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
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(note) “ACTUATOR RLY” on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator motor relay and circuit.")
TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
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(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
SFIA0364E
SFIA0365E
Page 950 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-82
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Data Monitor Items to be Displayed
Data Monitor Item (Unit)Data Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM
MENUCAN DIAG
SUPPORT
M](/img/5/57402/w960_57402-949.png "NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-82
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Data Monitor Items to be Displayed
Data Monitor Item (Unit)Data Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM
MENUCAN DIAG
SUPPORT
M")
BRC-82
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Data Monitor Items to be Displayed
Data Monitor Item (Unit)Data Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM
MENUCAN DIAG
SUPPORT
MNTR
GEAR´´´– “1” is displayed.
SLCT LVR POSI´´´– “##” is displayed.
FR RH SENSOR
(km/h,MPH)´´´–Wheel speed calculated by
front RH wheel speed sensor
signal is displayed.
FR LH SENSOR
(km/h, MPH)´´´–Wheel speed calculated by
front LH wheel speed sensor
signal is displayed.
RR RH SENSOR
(km/h, MPH)´´´–Wheel speed calculated by
rear RH wheel speed sensor
signal is displayed.
RR LH SENSOR
(km/h, MPH)´´´–Wheel speed calculated by
rear LH wheel speed sensor
signal is displayed.
ACCEL POS SIG
(%)´´´–Throttle valve open/close sta-
tus judged by the CAN com-
munication signal is
displayed.
ENGINE RPM
(rpm)´´´–Engine speed judged by the
CAN communication signal is
displayed.
CAN COM START
(ON/OFF)–´´–Communication status of CAN
communication is displayed.
STR ANGLE SIG
(deg)´´´–Steering angle detected by
the steering angle sensor is
displayed.
YAW R AT E S E N
(d/s)´´´–Yaw rate detected by the yaw
rate sensor is displayed.
SIDE G-SENSOR
(m/s
2)´´´–Transverse acceleration
detected by the side G sensor
is displayed.
PRESS SENSOR
(bar )´´´–Brake fluid pressure detected
by the pressure sensor is dis-
played.
BATTERY VOLT
(V )´´´–Voltage supplied to ESP/TCS/
ABS control unit is displayed.
MOTOR RELAY
(ON/OFF )–´´–Motor relay signal (ON/OFF)
status is displayed.
ACTUATOR RLY
(ON/OFF )–´´–Actuator relay signal (ON/
OFF) status is displayed.
STOP LAMP SW
(ON/OFF)´´´–Stop lamp switch (ON/OFF)
status is displayed.
PARK BRAKE SW
(ON/OFF)´´´–Parking brake switch (ON/
OFF) status is displayed.
OFF SW
(ON/OFF)´´´–ESP OFF switch (ON/OFF)
status is displayed.
ABS WARN LAMP
(ON/OFF)–´´–ABS warning lamp (ON/OFF)
status is displayed.
OFF LAMP
(ON/OFF)–´´–ESP OFF indicator lamp (ON/
OFF) status is displayed.
Page 957 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-89
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ABS Warning Lamp, ESP OFF Indicator Lamp, SLIP Indicator Lamp ON/OFF Timing
´:ON –: Lamp OFF
´: Applicable
–: Not applicable
Bas](/img/5/57402/w960_57402-956.png "NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-89
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ABS Warning Lamp, ESP OFF Indicator Lamp, SLIP Indicator Lamp ON/OFF Timing
´:ON –: Lamp OFF
´: Applicable
–: Not applicable
Bas")
TROUBLE DIAGNOSIS
BRC-89
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ABS Warning Lamp, ESP OFF Indicator Lamp, SLIP Indicator Lamp ON/OFF Timing
´:ON –: Lamp OFF
´: Applicable
–: Not applicable
Basic InspectionEFS001A9
PRELIMINARY CHECK 1: (BRAKE FLUID LEVEL AND LEAK INSPECTION)
1. Check the fluid level in the brake reservoir tank. If the fluid level is low, refill the brake fluid.
2. Check the area around the brake piping, ESP/TCS/ABS actuator for leaks. If a leak or oozing is detected,
checkasfollows:
lIf the connections at the ESP/TCS/ABS actuator are loose, tighten the piping to the specified torque.
Then check again for leaks, and make sure that there is no fluid leak.
lIf the flare nuts at the connections and the threads of the ESP/TCS/ABS actuator are damaged, replace
the damaged parts. Then check again for leaks, and make sure that there is no fluid leak.
lIf a leak or oozing is detected on other parts than the ESP/TCS/ABS actuator connections, wipe the
applicable part with a clean cloth. Then check again for leaks, and if there is still a leak or oozing,
replace the damaged part.
lIf a leak or oozing is detected on the ESP/TCS/ABS actuator body, wipe the applicable part with a clean
cloth. Then check again for leaks, and if there is still a leak or oozing, replace the ESP/TCS/ABS actua-
tor body.
CAUTION:
Do not disassemble the actuator body.
3. Check the brake disc rotor and pads.
PRELIMINARY CHECK 2: (INSPECTION FOR LOOSE POWER SUPPLY TERMINAL)
Check the battery for looseness on the battery positive/negative terminals and ground connection. If loose-
ness is detected, tighten the piping to the specified torque. Check that the battery voltage does not drop and
the alternator is normal.
PRELIMINARY CHECK 3: (INSPECTION FOR ABS WARNING LAMP, ESP OFF INDICATOR
LAMP, AND SLIP INDICATOR LAMP)
1. Check that the ABS warning lamp is ON for Approx. 0.5 seconds when the ignition switch is turned ON. If
it does not turn on, check the ABS warning lamp and the circuit, and the combination meter.
2. Check that ESP OFF indicator lamp is ON for Approx. 0.5 seconds when the ignition switch is turned ON.
If it does not turn ON, check the ESP OFF indicator lamp and the circuit, and the combination meter.
3. Check that the SLIP indicator lamp is ON for Approx. 0.5 seconds when the ignition switch is turned ON. If
it does not turn ON, check the SLIP indicator lamp and the circuit.
Condition ABS warning lampESP OFF
indicator lampSLIP indicator lamp Remarks
When the ignition switch is
OFF––– –
After the ignition switch is
turned ON
For Approx. 0.5 seconds´´´–
Ignition switch ON
Approx. 0.5 seconds later––– –
When the ESP OFF switch
turns ON (ESP/TCS function
OFF).–´–Lamp goes off after Approx. 2
seconds when the engine re-start.
ESP/TCS/ABS
malfunction´´´–
´´–When the ESP/TCS/ABS control
unit is abnormal (power supply or
ground malfunction).
When the ESP/TCS ism
abnormal.–´´–
Page 969 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-101
[ESP/TCS/ABS]
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2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors for the ESP/TCS/ABS control unit and the actuator. Securely connect them aga](/img/5/57402/w960_57402-968.png "NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-101
[ESP/TCS/ABS]
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BRC
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors for the ESP/TCS/ABS control unit and the actuator. Securely connect them aga")
TROUBLE DIAGNOSIS
BRC-101
[ESP/TCS/ABS]
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BRC
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors for the ESP/TCS/ABS control unit and the actuator. Securely connect them again.
2. Perform the self-diagnosis again.
Are any self-diagnosis items indicated again?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3.ACTUATOR MOTOR, MOTOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect relay box connectors.
2. Check the voltage between the vehicle-side connector and body ground.
Is inspection result OK?
OK >> GO TO 4.
NG >>
lCheck the fuse 50A.
lCheck for continuity between the battery and the relay box terminal No. 10.
4.ACTUATOR MOTOR AND MOTOR RELAY CIRCUIT CHECK
1. Disconnect connectors for the ESP/TCS/ABS control unit and
the relay box.
2. Check for continuity between the ESP/TCS/ABS control unit,
the relay, and the actuator (vehicle-side connector).
Is inspection result OK?
YES >> GO TO 5.
NO >> Harness malfunction between the ESP/TCS/
ABS control unit, the relay box and the actuator.
SFIA0379E
Relay box
(Vehicle-side connector)Body ground Voltage value
10 – Battery voltage (approx. 12V)
ESP/TCS/ABS
control unit
(Vehicle-side
connector)Relay box
(Vehicle-side
connector)Actuator
(Vehicle-side
connector)Continuity
20 4 — Yes
78—Yes
— 41 [RHD] 21 [RHD] Yes
SFIA0380E
Page 971 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-103
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
4.ACTUATOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect relay box connectors.
2. Check the voltage between the vehicle-side co](/img/5/57402/w960_57402-970.png "NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-103
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
4.ACTUATOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect relay box connectors.
2. Check the voltage between the vehicle-side co")
TROUBLE DIAGNOSIS
BRC-103
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC
4.ACTUATOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect relay box connectors.
2. Check the voltage between the vehicle-side connector and body
ground.
Is inspection result OK?
YES >> GO TO 5.
NO >>
lCheck the fuse 30A.
lCheck for continuity between the battery and the relay box terminal No. 9. If it is not OK,
replace the fuse or harness.
5.ACTUATOR RELAY POWER CIRCUIT CHECK
1. Disconnect connectors for the ESP/TCS/ABS control unit and
the relay box.
2. Check for continuity between the ESP/TCS/ABS control unit
and the relay box (vehicle-side connector).
Is inspection result OK?
OK >> GO TO 6.
NG >> Harness disconnection between the ESP/TCS/ABS control unit and the relay box.
6.ACTUATOR RELAY UNIT INSPECTION
Check the actuator relay as a unit.
Is inspection result OK?
OK >> Check the ESP/TCS/ABS control unit power supply circuit.
NG >> Replace the actuator relay.
SFIA0382E
RELAY BOX
(Vehicle-side connector)Body ground Voltage value
9 – Battery voltage (approx. 12V)
SFIA0383E
ESP/TCS/ABS control unit
(Vehicle-side connector)Relay box
(Vehicle-side connector)Continuity
25Yes
36 7 Yes
Page 972 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-104
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Inspection 10 Stop Lamp Switch and Circuit
EFS001AL
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is
²STOP LAMP SW²indi](/img/5/57402/w960_57402-971.png "NISSAN X-TRAIL 2003 Electronic Repair Manual BRC-104
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Inspection 10 Stop Lamp Switch and Circuit
EFS001AL
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is
²STOP LAMP SW²indi")
BRC-104
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Inspection 10 Stop Lamp Switch and Circuit
EFS001AL
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is
²STOP LAMP SW²indicated in the self-diagnosis results?
>> GO TO 2.
2.STOP LAMP INSPECTION
1. Disconnect connectors for the stop lamp switch and the ESP/TCS/ABS control unit.
2. Securely connect them again.
3. Start the engine.
4. Repeat depressing the brake pedal carefully several times, then perform the self-diagnosis again.
Is the same self-diagnosis item indicated?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3.STOP LAMP SWITCH CIRCUIT CHECK
1. Disconnect connectors for the stop lamp switch and the ESP/
TCS/ABS control unit.
2. Check for continuity between the stop lamp switch (vehicle-side
connector) and the ESP/TCS/ABS control unit (vehicle-side
connector).
Is inspection result OK?
OK >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NG >> Harness disconnection between the ESP/TCS/ABS control unit and the stop lamp switch.
Inspection 11 ESP/TCS/ABS Control Unit Power Supply CircuitEFS001AM
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Is
“BATTERY VOLTTAGE [ABNORMAL]“indicated in the self-diagnosis results?
>> GO TO 2.Self-diagnosis results
CONSULT-II indication item
STOP LAMP SW
SFIA0384E
ESP/TCS/ABS control unit
(Vehicle-side connector)STOP LAMP SW
(Vehicle-side connector)Continuity
48 2 Yes
Self-diagnosis results
CONSULT-II indication item
BATTERY VOLTTAGE [ABNORMAL]