2005 NISSAN X-TRAIL check

TROUBLE DIAGNOSIS
BRC-79
[ESP/TCS/ABS]
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(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

TROUBLE DIAGNOSIS
BRC-81
[ESP/TCS/ABS]
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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.

TROUBLE DIAGNOSIS
BRC-83
[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 CONSULT-II Instruction Manual.
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 to BRC-98
. 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 operating 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
to BRC-101
During the actuator motor operating with OFF, when the actuator
motor turns ON, or when the control line for relay is shorted to
ground.
ABS SENSOR
[ABNORMAL SIGNAL]Wheel sensor input is malfunction.Wheel sensor and cir-
cuit. Refer to BRC-91
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 to BRC-105
ST ANGLE SEN SIGNALNeutral position correction of steering angle sensor is not fin-
ished.Neutral position adjust-
ment of steering angle
sensor. Refer to BRC-
107
ST ANG SEN COM CIRCAN communication system or steering angle sensor is malfunc-
tion.Steering angle sensor
and CAN communication
circuit. Refer to BRC-109
SIDE G-SEN CIRCUITSide G sensor is malfunction, or circuit of side G sensor is open
or shorted.Yaw rate/ Side G sensor
and circuit. Refer to
BRC-97
EMERGENCY BRAKEESP/TCS/ABS control unit malfunction (pressure increase is too
much or too little.)ESP/TCS/ABS control
unit. Refer to BRC-107
CONTROLLER FAILURE ESP/TCS/ABS internal malfunction of control unitESP/TCS/ABS control
unit. Refer to BRC-93
CAN COMM CIRCUIT

CAN communication line is open or shorted.

ESP/TCS/ABS control unit internal malfunction.

Battery voltage for ECM is interrupted instantaneously for
Approx. 0.5 seconds or more.Communication circuit
between ESP/TCS/ABS
control unit and units.
Refer to BRC-109
BR FLUID LEVEL LOWBrake fluid level drops or communication line between the ESP/
TCS/ABS control unit and 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 to BRC-108

ENGINE SIGNAL 1-4, 6 Major engine components are malfunction Engine system. Refer to
BRC-93
Self-Diagnostic item Malfunction detecting condition Check route

BRC-88
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

For Fast and Accurate DiagnosisEFS005W4
PRECAUTIONS FOR DIAGNOSIS

Before performing diagnosis, always read precautions. Refer to BRC-60, "How to Proceed With Diagno-
sis" .

If ESP/TCS/ABS control unit steering angle sensor, steering system parts or suspension system parts
have been replaced, or if alignment has been adjusted, be sure to adjust neutral position of steering angle
sensor before driving. Refer to BRC-52, "
Adjustment of Steering Angle Sensor Neutral Position" .

After diagnosis is finished, be sure to erase memory. Refer to BRC-81, "SELF-DIAGNOSIS" .

When checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any malfunction is found, repair or replace connector termi-
nals.

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

To use CONSULT-II to perform self-diagnosis of ESP/TCS/ABS control unit active tests, or work support,
first stop work, then connect CONSULT-II and select “ABS”.

While self-diagnostic results of CONSULT-II shows malfunction, if CONSULT-II active test is performed,
an engine system malfunction may be indicated. In this case, start engine to resume the normal screen.

ESP/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:
ON and OFF Timing for ABS Warning Lamp, ESP OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×: ON –: OFF Symptom Symptom description Result
Motor operation noiseThis is noise of motor inside ESP/TCS/ABS control unit. Slight noise
may occur during ESP, TCS, and ABS operation.
Normal
When the vehicle speed goes over 20 km/h (12.5 MPH), motor and
valves operating noise may be heard. It happens only once after ignition
switch is ON. This is a normal status of the system operation check.
System operation check
noiseWhen engine starts, slight “click” noise may be heard from engine room.
This is normal and is part of system operation check.Normal
ESP/TCS operation
(SLIP indicator lamp blink-
ing)TCS may activate momentarily if wheel speed changes when driving
over location where friction coefficient varies, when downshifting, or
when fully depressing accelerator pedal.Normal
Cancel the ESP/TCS
function for the
inspection on a chas-
sis dynamometer. When checking speed meter etc. with a 2-wheel-drive chassis dyna-
mometer, vehicle speed is not increased by pressing down on the accel-
erator.
ABS operation (Longer stop-
ping distance)On roads with low friction coefficients, such as snowy roads or gravel
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed
sufficiently low.Normal
Insufficient feeling of accel-
erationDepending on road conditions, driver may feel that feeling of accelera-
tion is insufficient. This is because traction control, which controls
engine and brakes to achieve optimal traction, has the highest priority
(for safety). As a result, there may be times when acceleration is slightly
less than usual for the same accelerator pedal operation.Normal
ConditionABS warning
lampESP OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp [Note 1]Remarks
Ignition SW OFF. – – – – –
Approx. 2 seconds after igni-
tion switch is turned ON.×××× [Note 2] –
Approx. 2 seconds later after
ignition switch ON.–––× [Note 2]Go out 2 seconds after
ignition switch is turned
ON.

TROUBLE DIAGNOSIS
BRC-89
[ESP/TCS/ABS]
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NOTE:
1. Brake warning lamp will turn on in case of operating parking brake (switch turned ON) or of actuating
brake fluid level switch (brake fluid is insufficient).
2. After starting engine, turn off.
Basic InspectionEFS005W5
BASIC INSPECTION 1 BRAKE FLUID AMOUNT, LEAKS, AND BRAKE PADS INSPECTION
1. Check fluid level in the brake reservoir tank. If fluid level is low, refill brake fluid.
2. Check brake piping and around ESP actuator for leaks. If there is leaking or oozing fluid, check the follow-
ing items.

If ESP actuator connection is loose, tighten piping to the specified torque and re-perform the leak
inspection to make sure there are no leaks.

If there is damage to the connection flare nut or ESP actuator screw, replace the damaged part and re-
perform the leak inspection to make sure there are no leaks.

When there is fluid leaking or oozing from a part other than ESP actuator connection, if fluid is just ooz-
ing out, use a clean cloth to wipe off the oozing fluid and re-check for leaks. If fluid is still oozing out,
replace the damaged part.
CAUTION:
ESP actuator body cannot be disassembled.
3. Check brake pad degree of wear. Refer to BR-27, "
PAD THICKNESS" in “Front Disc Brake” and BR-32,
"PAD WEAR INSPECTION" in “Rear Disc Brake”
BASIC INSPECTION 2 POWER SYSTEM TERMINAL LOOSENESS AND BATTERY INSPECTION
Make sure battery positive cable, negative cable and ground connection are not loose. If looseness is
detected, tighten the cables. In addition, check the battery voltage to make sure it has not dropped and alter-
nator is normal.
ESP OFF SW is turned ON.
(ESP/TCS function is OFF.)–×–– –
ESP/TCS/ABS malfunction.×××–There is an ESP/TCS/
ABS control unit mal-
function. (Power,
ground or system mal-
function)
When ESP/TCS is not func-
tioning normally.–××––
EBD malfunction.××××– ConditionABS warning
lampESP OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp [Note 1]Remarks

BRC-90
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

BASIC INSPECTION 3 ABS WARNING LAMP, ESP OFF INDICATOR LAMP, SLIP INDICATOR
LAMP AND BRAKE WARNING LAMP INSPECTION
1. Make sure ABS warning lamp, ESP OFF indicator lamp (when ESP OFF switch is OFF), and SLIP indica-
tor lamp turns on approximately 2 second, and brake warning lamp turns on when ignition switch is turned
ON. If they do not, check ESP OFF indicator lamp and then ESP OFF switch. Refer to BRC-109, "
ESP
OFF SWITCH" . Check CAN communications. Refer to “CAN Communication Inspection”. If there are no
malfunctions with ESP OFF switch and CAN communication system, check combination meter. Refer to
DI-4, "
COMBINATION METERS" .
2. Make sure ABS warning lamp, ESP OFF indicator lamp, SLIP indicator lamp turn off approximately 2 sec-
ond after turn ignition switch ON, and brake warning lamp turns off after engine starts. If lamps do not turn
off, perform self-diagnosis.
3. With engine running, make sure ESP OFF indicator lamp turns on and off when ESP OFF switch is turned
ON and OFF. If indicator lamp status does not correspond to switch operation, check the ESP OFF switch
system. Refer to BRC-109, "
ESP OFF SWITCH" .
4. Make sure ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp turn off 2 seconds after
engine is started. If ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp have not turned
off 10 seconds after engine has been started, perform self-diagnosis of ESP/TCS/ABS control unit.
5. After performing the self-diagnosis, be sure to erase the diagnostic memory. Refer to BRC-28, "
SELF-
DIAGNOSIS" .
CAUTION:
Brake warning lamp turns on when parking brake is operated (switch on) and brake fluid level
switch is activated (leak of brake fluid).

TROUBLE DIAGNOSIS
BRC-91
[ESP/TCS/ABS]
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Inspection 1 Wheel Sensor SystemEFS005W6
INSPECTION PROCEDURE
Check each part according to CONSULT-II self-diagnostic results, and then identify the parts to be replaced.
CAUTION:
Do not check between wheel sensor terminals.
1. CHECK TYRE
Check air pressure, wear and size.
Are air pressure, wear and size within standard?
YES >> GO TO 2.
NO >> Adjust air pressure, or replace tyre.
2. CHECK SENSOR AND SENSOR ROTOR

Check sensor and sensor rotor.

Check sensor rotor rubber for damage.

Check sensor for disconnection or looseness.
Is inspection result OK?
OK >> GO TO 3.
NG >> Repair sensor mount or replace sensor rotor.
3. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis displayed?
YES >> GO TO 4.
NO >> INSPECTION END
4. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect connector between ESP/TCS/ABS control unit and malfunctioning
wheel sensor, and check for deformation, disconnection and looseness. Repair or replace if necessary.
2. Reconnect connectors, drive vehicle at 30 km/h or more for approximately 1 minute, and then perform
self-diagnosis.
OK or NG
OK >> Poor connection of connector terminal
NG >> GO TO 5.
Self-diagnostic results
ABS SENSOR [ABNORMAL SIGNAL]
FR RH SENSOR-1
FR RH SENSOR-2
FR LH SENSOR-1
FR LH SENSOR-2
RR RH SENSOR-1
RR RH SENSOR-2
RR LH SENSOR-1
RR LH SENSOR-2