2001 NISSAN X-TRAIL steering wheel

BRC-4
[4WD/ABS]
PRECAUTIONS
[4WD/ABS]PRECAUTIONSPFP:00001
Precautions for brake systemEFS001B6
●Recommended fluid is brake fluid “DOT 3 ”or “DOT 4”.
●Never reuse drained brake fluid.
●Be careful not to splash brake fluid on painted areas.
●To clean or wash all parts of master cylinder, disc brake caliper and wheel cylinder, use clean brake fluid.
●Never use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.
●Use flare nut wrench when removing and installing brake tube.
●Always torque brake lines when installing.
●Burnish 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 to BR-10, "
Brake Burnishing
Procedure" .
●Before working, turn OFF ignition switch. Disconnect connectors
for ABS actuator and control module or battery terminals.
WARNING:
●Clean brake pads and shoes with a waste cloth, then wipe
with a dust collector.
Precautions for brake controlEFS001B7
●If malfunction is indicated by 4WD warning lamp and/or ABS warning lamp, collect necessary information
from customer (what symptoms are present under what conditions). Find out possible causes before start-
ing service. Besides electrical system inspection, check operation of ABS actuator.
●If malfunction is detected, proceed to trouble diagnosis after checking tire pressure and tire wear.
●Stopping distance or steering stability may be deteriorated by the following conditions. Tire size and type
are in improper combination. Brake pads are not Nissan genuine parts.
●Fitting tires of different size on vehicle can be cause of longitudinal vibration. Always use tires of the same
size and brand. Exchange front and rear tires on the following conditions: Longitudinal vibration occurs in
vehicle with tires of the same size and brand. After replacement, perform trouble diagnosis. 1580|None
●4WD/ABS function may have a failure or error under following condition: There is radio, antenna, or
antenna lead-in wire (including wiring) near control module.
●If aftermarket parts (e.g. Car stereo equipment, CD player) have been installed, check electrical har-
nesses for pinches, open, and improper wiring.
SBR820BA

BRC-18
[4WD/ABS]
TROUBLE DIAGNOSIS
Trouble Diagnosis Chart by Symptom
EFS001BF
When ABS and 4WD warning lamps illuminate, perform self-diagnosis.
Symptom Condition Check items Reference page
4wd indicator lamp does not come on
for approximately 1 second when the
ignition switch is turned on.IGN-ON
●Blown drive mode indicator lamp bulb
●Blown fuse between ignition and drive mode
indicator lamp
●Open circuit of wiring between ignition and
drive mode indicator lampBRC-42
ABS warning lamp does not illuminate
with ignition ON. (ABS warning lamp
check)IGN-ON
●Blown ABS warning lamp bulb
●Blown fuse between ignition and ABS warning
lamp.
●Open circuit of wiring between ignition and
ABS warning lamp.
●Malfunction in ABS systemBRC-42
ABS warning lamp illuminates with
ignition ON, but does not illuminates
after a few seconds. (ABS warning
lamp has not illuminated.)IGN-ON●4WD/ABS control unit connector discon-
nected
●Malfunction in ABS systemBRC-42
4WD warning lamp does not illuminate
with ignition ON.IGN-ON
●Blown 4WD warning lamp bulb
●Blown fuse between ignition and 4WD warn-
ing lamp
●Open circuit in wire between ignition and 4WD
warning lamp
●Open circuit in wire between 4WD warning
lamp and 4WD actuator relay
●Disconnected 4WD actuator relay
●Open circuit in wire between 4WD actuator
relay and body groundBRC-43
4WD warning lamp does not go out
several seconds after engine is started.
(Drive mode indicator lamp goes out.)Engine running●4WD/ABS control unit connector discon-
nected
●Malfunction present in 4WD systemBRC-43
Heavy tight-corner braking symptom
occurs when vehicle is driven in the fol-
lowing conditions: AUTO mode and
steering wheel is turned fully to either
sides after engine is started (Note 1,
Note 2).●Engine run-
ning
●AUTO mode
●Steering
wheel fully
turned
●Operation is not in AUTO mode (in 2WD or
LOCK mode).
●Throttle position signal error
●Mechanical malfunction of electronically con-
trolled coupling
●Malfunction present in 4WD systemBRC-44
Drive modes cannot be switched after
engine is started.Engine running
●Drive mode change-over switch is discon-
nected.
●Open circuit between drive mode change-over
switch and 4WD /ABS control unit
●Open circuit between drive mode change-over
switch and body groundBRC-45
Vehicle running, 4WD warning lamp
flashes rapidly. (When it flashes for
Approx. One minute, then does not illu-
minate.) Rapid flashing: Two times
flashing per 1 secondEngine running
(to other than
2WD mode)Protection function was activated due to heavy
load to electronically controlled coupling. (4WD
system is not malfunctioning.)BRC-45

TROUBLE DIAGNOSIS
BRC-19
[4WD/ABS]
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CAUTION:
1. Light tight-corner braking symptom may occur depending on driving conditions in AUTO mode.
This is not malfunction.
2. Heavy tight-corner braking symptom occurs when vehicle is driven in the following conditions:
LOCK mode, steering wheel is turned fully to either sides, and accelerator pedal was depressed.
4WD/ABS Control Unit Input/Output Signal StandardEFS001BG
4WD/ABS CONTROL UNIT CONNECTOR TERMINAL ARRANGEMENT
CAUTION:
When ignition switch is turned to ON with connectors of 4WD/ABS control unit and actuator con-
nected.
REFERENCE STANDARD TABLE
Specifications defined by circuit tester
Vehicle running, 4WD warning lamp
flashes slowly. (When it flashes for
Approx. One minute, then does not illu-
minate.) slow flashing: One flashing
per 2 seconds●Engine run-
ning
●Driving at
vehicle speed
30km/h (19
MPH)Tire size is different for front and rear of vehicle.BRC-45
Vehicle does not enter 4WD mode
even though 4WD warning lamp is off.Engine runningMechanical malfunction of electronically con-
trolled coupling (Mechanical engagement of
clutch is not possible.)BRC-46
Symptom Condition Check items Reference page
SFIA0351E
Te r m i n a l N o .
Location Standard (note 1)(Note) Check
points when result
was malfunctioning +–
3.
109Power supply Ignition switch ONB a t t e ry v o lta g e ( A p p ro x .
12V)Control unit power
supply circuit

TROUBLE DIAGNOSIS
BRC-39
[4WD/ABS]
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4WD WARNING LAMP DOES NOT ILLUMINATE WITH IGNITION ON
1.INSPECTION OF BLOWN FUSE BETWEEN IGNITION SWITCH AND COMBINATION METER
Check blown fuse between ignition switch and combination meter.
OK or NG
OK >> GO TO 2 (No blown fuse)
NG >> Replace the fuse and perform the inspection again.
2.COMBINATION METER POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect combination meter connector.
2. Check voltage between the combination meter harness connector M46 terminal No. LHD models: 46 (W/
L) RHD models: 59 (W/L) and body ground.
OK or NG
OK >> Malfunctioning combination meter.
NG >> Check fuse 10A [#11] to combination meter harness and connector.
4WD WARNING LAMP DOES NOT GO OUT SEVERAL SECONDS AFTER ENGINE
STARTED.(4WD MODE INDICATOR LAMP GOES OUT)
1.PERFORM SELF-DIAGNOSIS
Using CONSULT-II perform self-diagnosis.
OK or NG
OK >> No malfunction detected. Perform inspection again.
NG >>
●Determine the location of the malfunction according to the result of Self-diagnosis using CON-
SULT-II. (Malfunction is present in the 4WD system.)
●CONSULT-II does not display 4WD system-related trouble codes. GO TO 2.
2.4WD CONTROL UNIT CONNECTOR CONNECTION INSPECTION
●Check 4WD/ABS control unit connector for proper connection.
OK or NG
OK >> Reconnect the 4WD/ABS control unit connector properly and perform inspection again.
NG >> Repair or replace the connector.
HEAVY TIGHT-CORNER BRAKING SYMPTOM OCCURS WHEN THE VEHICLE IS DRIVEN IN
AUTO MODE AND THE STEERING WHEEL IS TURNED FULLY TO EITHER SIDE AFTER THE
ENGINE IS STARTED
1.PERFORM SELF-DIAGNOSIS
Using CONSULT-II perform self-diagnosis.
OK or NG
OK >> GO TO 2. (No self-diagnosis malfunction indicated.)
NG >> Determine the location of the malfunction according to the result of Self-diagnosis using CON-
SULT-II. (Malfunction is present in the 4WD system.)

BRC-44
[4WD/ABS]
TROUBLE DIAGNOSIS
2. 4WD/ABS CONTROL UNIT CONNECTOR CONNECTION INSPECTION
●Remove glove box on the passenger side and check 4WD/ABS control unit connector for proper connec-
tion.
Is inspection result OK?
YES >> 4WD/ABS control unit connector is properly connected.
NO >> Reconnect the 4WD/ABS control module connector properly and perform inspection again.
Heavy Tight-corner Braking Symptom Occurs When The Vehicle Is Driven In
Auto Mode And The Steering Wheel Is Turned Fully To Either Side After The
Engine Is Started.
EFS001BT
1. USING CONSULT, PERFORM OR SELF-DIAGNOSIS
Heavy tight-corner braking symptom occurs when the vehicle is driven in AUTO mode and the steering wheel
is turned fully to either side after the engine is started.
Is inspection result OK?
YES >> GO TO 2. (No self-diagnosis malfunction indicated.)
NO >> Determine the location of the malfunction according to the result of self-diagnosis using CON-
SULT-II. (Malfunction is present in the 4WD system.)
2. CHECK USING THE DATA MONITOR FUNCTION OF THE CONSULT-II
●Perform inspection by the data monitor function of the CONSULT-II.
●Check that the operation is in AUTO mode.
●Measure voltage when the accelerator pedal is not depressed. (Accelerator pedal not depressed: Approx.
0.5V or lower)
●Measure the current supplied to the E-TS solenoid valve. (Accelerator pedal not depressed: Approx. 0A)
Is inspection result OK?
YES >> GO TO 3. (No self-diagnosis malfunction indicated.)
NO >>
●Not in AUTO mode. GO TO 3.
●Voltage when accelerator pedal is not depressed is higher than approximately 0.5V.
●E-TS solenoid valve current when accelerator pedal is not depressed is other than 0A.
●Countermeasure: Keep the vehicle idling for approximately 15 minutes before checking again.
(Voltage when accelerator pedal is not depressed will be automatically reset to zero during this
period.)

ON-VEHICLE SERVICE
BRC-57
[ESP/TCS/ABS]
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ON-VEHICLE SERVICEPFP:00000
Adjustment of Neutral Position of Steering Wheel Angle SensorEFS0019R
●After removing/installing or replacing the ESP/TCS/ABS control unit, steering wheel angle sensor, steer-
ing components, suspension components, and tires, or after adjusting the wheel alignment, make sure to
adjust the neutral position of the steering wheel angle sensor before running the vehicle.
CAUTION:
To adjust the neutral position of the steering wheel angle sensor, make sure to use CONSULT-II.
(Adjustment cannot be done other than CONSULT-II.)
1. Stop the vehicle with the front wheels in the straight-ahead position.
2. Connect CONSULT-II to data link connector on the vehicle, and
turn the ignition switch to ON position (engine not running).
3. Touch “START”, “ABS”, “WORK SUPPORT” and “ST ANGLE
SENSOR ADJUSTMENT” on the CONSULT-II screen in this
order.
PBIB0196E
SFIA0364E
SFIA0365E
SFIA0370E

BRC-58
[ESP/TCS/ABS]
ON-VEHICLE SERVICE
4. Touch “START”.
CAUTION:
Do not touch the steering wheel while adjusting the steer-
ing wheel angle sensor.
5. After approximately 10 seconds, touch “END”. (After approxi-
mately 60 seconds, it ends automatically.)
6. Turn the ignition switch OFF, then turn it ON again.
CAUTION:
Make sure to carry out the above operation.
7. Run the vehicle with the front wheels in the straight-ahead posi-
tion, then stop.
8. Select “DATA MONITOR“, “ECU INPUT SIGNALS” on the CON-
SULT-II screen. Then check that the “ST ANGLE SIG” is within
0±2.5deg. If the value is more than the specification, repeat
steps 1 to 5.
9. Erase the memory of ESP/TCS/ABS control unit and ECM.
10. Turn the ignition switch OFF.
SFIA0371E
SFIA0365E

GENERAL INFORMATION
BRC-59
[ESP/TCS/ABS]
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GENERAL INFORMATIONPFP:00000
Fail-SafeEFS0019S
ABS SYSTEM
If a malfunction occurs in the electrical system, the ABS warning lamp, ESP OFF indicator lamp, and SLIP
indicator lamp in the meter will turn ON. In this condition, the ESP/TCS/ABS and EBD become one of the fol-
lowing conditions by the fail-safe function.
1. Only EBD operates. The same condition as that of models without ESP/TCS/ABS
2. ESP/TCS/ABS and EBD do not operate. Only normal brake operates on 4 wheels.
NOTE:
In the step 1 shown above, the self-diagnosis is carried out at the ignition switch is turned ON and when the
vehicle initial starts. ABS self-diagnosis noise may be heard as usual.
ESP/TCS SYSTEM
If a malfunction occurs in the electrical system, the ESP OFF indicator lamp and SLIP indicator lamp in the
meter turn on. In this condition, ESP/TCS will be deactivated and it becomes equal to that of models without
ESP/TCS. However, ABS is controlled normally.
If a malfunction occurs in the throttle control system, ESP/TCS control does not operate. Only ABS control
operates normally.
CAUTION:
If the fail-safe function operates, carry out the self-diagnosis for ESP/TCS/ABS control system.
Hydraulic Circuit EFS0019T
CAUTION:
●When installing, check for twist and fracture.
●Make sure that there is no interference with other parts when turning the steering clockwise or
counter clockwise.
●The brake piping is an important safety part. If a brake fluid leak is detected, always disassemble
and replace with a new one, if necessary.
ABS FunctionsEFS0019U
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 4-wheel speed and controlling 4-wheel brake fluid pressure.
2. EBD is integrated in ESP/TCS/ABS system.
CAUTION:
●During ABS operation, the brake pedal lightly vibrates and its mechanical noise may be heard.
This is a normal condition.
SFIA0346E