NISSAN X-TRAIL 2005 Service Repair Manual

TROUBLE DIAGNOSIS
BRC-73
[ESP/TCS/ABS]
C
D
E
G
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K
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MA
B
BRC

TFWB0091E

BRC-74
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

TFWB0092E

TROUBLE DIAGNOSIS
BRC-75
[ESP/TCS/ABS]
C
D
E
G
H
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J
K
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MA
B
BRC

TFWB0077E

BRC-76
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

TFWB0093E

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

BRC-78
[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
OFF.OFF
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 (“Active Test ”with CON-
SULT-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-RL]
USV [FL-RR]
HSV [FR-RL]
HSV [FL-RR]ESP switch-over sole-
noid valve statusWhen the actuator (switch-
over solenoid valve) is active
(“Active test” with 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 (“Active
test” with CONSULT-II).ON
Actuator motor, motor
relay, and circuit
When the actuator motor and
motor relay are inactive.OFF
FLUID LEV SWBrake fluid level warn-
ing switch status.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

TROUBLE DIAGNOSIS
BRC-79
[ESP/TCS/ABS]
C
D
E
G
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K
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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-80
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

5. Touch “ABS” in the “SELECT SYSTEM” screen.
If “ABS” is not indicated, go to GI-35, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
6. Select the required diagnostic location from the “SELECT DIAG
MODE” screen.
For further information, see CONSULT-II Operation Manual.
SFIA1816E
SFIA2436E

TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
C
D
E
G
H
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K
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MA
B
BRC

SELF-DIAGNOSIS
Description

If an malfunction is detected in the system, ABS warning lamp, ESP OFF indicator lamp and SLIP indica-
tor lamp on the combination meter turn on. In this case, perform self-diagnosis as follows:

While CONSULT-II is used, ABS warning lamp, ESP OFF indicator lamp, SLIP indicator lamp may be
turned on in a case of no malfunctioning.
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. Start engine and drive at 30 km/h (19 MPH) or more for approximately 1 minute.
5. After stopping vehicle, with the engine running, touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-
DIAG RESULTS” in order on the CONSULT-II screen.
CAUTION:
If “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on the
ignition switch, “ABS” might not be displayed in the System Selection screen. In this case, repeat
the operation from step 1. If it cannot be shown after several attempts, ESP/TCS/ABS control unit
may have malfunctioned.
6. The self-diagnostic results are displayed. (If necessary, the self-diagnostic results can be printed out by
touching “PRINT”.)

When “NO FAILURE” is displayed, check ABS warning lamp, ESP OFF indicator lamp and SLIP indica-
tor lamp.
7. Perform the appropriate inspection from the display item list, and repair or replace the malfunctioning
component.
8. Drive the vehicle at 30 km/h (19 MPH) or more for approximately 1 minute.
CAUTION:

In a case that a wheel sensor is malfunctioning, ABS warning lamp, ESP OFF indicator lamp,
SLIP indicator lamp will turn on. If vehicle is not driven at approximately 30 km/h (19 MPH) or
more for at least approximately 1 minute after repair of the wheel sensor system, ABS warning
lamp, ESP OFF indicator lamp and SLIP indicator lamp may not turn off even if everything is
normal. Check again to make sure that there is no malfunction on other parts.
9. Turn ignition switch OFF to prepare for erasing the memory.
10. Start engine and touch “START (NISSAN BASED VHCL)”, “ABS”, “SELF-DIAG RESULTS”, “ERASE
MEMORY” in order on the CONSULT-II screen to erase the diagnostic memory.
If “ABS” is not indicated, go to GI-35, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
If the diagnostic memory is not erased, re-perform the operation from step 5.
11. For the final inspection, drive at 30 km/h (19 MPH) or more for approximately 1 minute and confirm that
ABS warning lamp, ESP OFF indicator lamp and SLIP indicator lamp are OFF.

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.