2003 NISSAN X-TRAIL start

BRC-88
[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-107, "
ESP
OFF SWITCH" . Check CAN communications. Refer to “CAN Communication Inspection”. If there are no
errors 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-107, "
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 error memory. Refer to BRC-27, "
SELF-DIAGNO-
SIS" .
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-95
[ESP/TCS/ABS]
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BRC

Inspection 6 Yaw Rate/Side G sensor and the Circuit between Yaw Rate/Side G
sensor and ESP/TCS/ABS Control Unit.
EFS001AG
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
CAUTION:
When vehicle on a turn-table at an entrance of parking lot or on a moving unit, ESP OFF indicator
lamp turns ON, and the self-diagnosis with CONSULT-II may indicate that yaw rate sensor system is
malfunction. In this case, yaw rate sensor is not malfunction. Move the vehicle from the turn-table or
other moving unit, and restart the engine. This will return the status normal.
Are
“ YAW RATE SENSOR ” and “ SIDE G-SEN CIRCUIT ” indicated in the self-diagnosis results.
YES >> GO TO 2.
NO >> INSPECTION END.
2. SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors of yaw rate/side G sensor and ESP/TCS/
ABS control unit.
2. Check for continuity between ESP/TCS/ABS control unit and
yaw rate/side G sensor.
Is inspection result OK?
YES >> GO TO 3.
NO >> Repair or replace the disconnected harness.
Self-diagnosis results
YAW RATE SEN
SIDE G-SEN CIRCUIT
SFIA2180E
ESP/TCS/ABS control unit
(harness connector E122)Yaw rate/side G-sensor
(harness connector B112)Continuity
78 (L/B) 1 (L/B) Yes
77 (Y/B) 2 (Y/B) Yes
34 (OR) 3 (OR) Yes
79 (LG/R) 4 (LG/R) Yes
18 (GY/L) 5 (GY/L) Yes
80 (W/R) 6 (W/R) Yes

TROUBLE DIAGNOSIS
BRC-103
[ESP/TCS/ABS]
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Inspection 10 Stop Lamp Switch and CircuitEFS001AL
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is
“STOP LAMP SW” indicated in the self-diagnosis results?
YES >> GO TO 2.
NO >> INSPECTION END.
2. STOP LAMP INSPECTION
1. Disconnect connectors for stop lamp switch and ESP/TCS/ABS control unit.
2. Securely connect them again.
3. Start the engine.
4. Repeat depressing 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 stop lamp switch and ESP/TCS/
ABS control unit.
2. Check for the continuity between the stop lamp switch and ESP/
TCS/ABS control unit.
Is inspection result OK?
YES >> Perform ESP/TCS/ABS control unit self-diagnosis again.
NO >> The harness disconnection between ESP/TCS/ABS control unit and 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 VOLTAGE [ABNORMAL]” indicated in the self-diagnosis results?
YES >> GO TO 2.
NO >> INSPECTION END.
Self-diagnosis results
STOP LAMP SW
SFIA2185E
ESP/TCS/ABS control unit
(harness connector E122)STOP LAMP SW
(harness connector M12)Continuity
48 (P) 2 (P) Yes
Self-diagnosis results
BATTERY VOLTAGE [ABNORMAL]

BRC-110
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Actuator operation check
1. Connect 9 and 10 terminals of actuator to 40 and 41 terminals of
relay box.
2. Measure the motor voltage (No.4 terminal to body earth) with
oscilloscope. Then check the motor reverse voltage occasioned
time.
The motor reverse voltage occasioned time is more than 0.1
sec.
CAUTION:

Perform checking of motor relay unit. Then confirm that
relay functions.

Driving actuator motor is with in 4 sec. to prevent heating
up.

Standard condition of the motor reverse voltage occa-
sioned time is: Battery voltage is 12V. Temperature 20°.
when the battery voltage or temperature is lower than the
standard, the motor reverse voltage occasioned time
becomes slightly shorter.
Symptom 1: ABS Works Frequently.EFS001AS
Inspection procedure
1. INSPECTION START
Check the wheel sensor system.

Sensor mounting inspection

Sensor pick-up inspection for iron chips

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

Sensor connector engagement inspection
Is inspection result OK?
YES >> GO TO 2.
NO >> Refer to wheel sensor and rotor lines.
2. LOOSENESS INSPECTION
Check front axle for looseness.
Is inspection result OK?
YES >>BRC-110, "Symptom 2: Unexpected Pedal Action"
NO >> Axle inspection and repair
Symptom 2: Unexpected Pedal ActionEFS001AT
Inspection procedure
1. BRAKE PEDAL STROKE INSPECTION
Check the brake pedal stroke.
Is the stroke excessively long?
YES >> Check the bleeding and brake system.
NO >> GO TO 2.
SFIA1824E

TROUBLE DIAGNOSIS
BRC-111
[ESP/TCS/ABS]
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BRC

2. PEDAL FORCE INSPECTION
Check that brake is effective with the pedal depressed.
Is the pedal force heavy, but effective?
YES >> Normal
NO >> GO TO 3.
3. CONNECTOR AND PERFORMANCE INSPECTION
Disconnect the actuator relay unit connector to deactivate the ABS function. Check that brake is effective.
Is brake effective?
YES >> GO TO 4.
NO >> Brake line inspection
4. ABS WARNING LAMP INDICATOR INSPECTION
Check that ABS warning lamp illuminates.
Does ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 5.
5. WHEEL SENSOR INSPECTION
Check the wheel sensor system.

Sensor mounting inspection

Sensor pick-up inspection for iron chips

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

Sensor connector engagement inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 3: Longer Stopping DistanceEFS001AU
Inspection procedure
1. INSPECTION START
Check that the stopping distance when braking becomes longer only on a snowy or gravel road.
Does the stopping distance when braking become longer only on a snowy or gravel road?
YES >> It may be longer than that of vehicle without ABS.
NO >> GO TO 2.
2. PERFORMANCE CHECK
Disconnect the actuator relay box to deactivate the ABS function.
Is the stopping distance still longer?
YES >>
Brake line air bleeding

Brake line inspection
NO >> GO TO 3.
3. ABS WARNING LAMP INDICATOR INSPECTION
Check that ABS warning lamp illuminates.
Does ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 4.

BRC-112
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

4. WHEEL SENSOR INSPECTION
Check the wheel sensor system.

Sensor mounting inspection

Sensor pick-up inspection for iron chips

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

Sensor connector engagement inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 4: ABS Does Not Work.EFS001AV
Inspection procedure
1. ABS WARNING LAMP INDICATOR INSPECTION
Check that the ABS warning lamp illuminates.
Does the ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 2.
2. WHEEL SENSOR INSPECTION
Check the wheel sensor system.

Sensor mounting inspection

Sensor pick-up inspection for iron chips

Sensor rotor inspection (e.g. Number of teeth, damaged teeth)

Sensor connector engagement inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 5: Pedal Vibration and NoiseEFS001AW
Inspection procedure
1. SYMPTOM CHECK
Check the brake system for pedal vibration or noise when engine starts.
Is inspection result OK?
YES >> Perform the self-diagnosis.
NO >> GO TO 2.
2. SYMPTOM CHECK 2
Check the brake system for pedal vibration or noise when pedal is depressed lightly (just put a foot on).
CAUTION:
Under the following driving conditions, the wheel speed will fluctuates, resulting in ABS activation.

When shifting gears

High speed cornering

When a gust of wind
Is inspection result OK?
YES >> GO TO 3.
NO >> Normal

PS-6
POWER STEERING FLUID

POWER STEERING FLUIDPFP:KLF20
Checking Fluid LevelEGS0004B

Check the fluid level with the engine OFF.

Check that fluid level is between MAX and MIN marks on tank.
Fluid level should not exceed MAX mark. Excessive fluid will
cause fluid to leak from cap.

Note that fluid level can change depending on temperature of
fluid. HIGH and LOW marks are shown on tank to indicate the
proper level at high temperature and low temperature respec-
tively.
CAUTION:

Never reuse drained power steering fluid.

Use DEXRONTM III or equivalent. Never use Nissan Power Steering Fluid Special, Nissan Matic
Fluid C, or D.
Checking Fluid LeakageEGS0004C
Check hydraulic connections for any leakage, crack, damage, loose-
ness, or wear.
1. Run engine until fluid temperature reaches 50 to 80°C (122 to
176°F) in reservoir tank. Keep engine speed at idle.
2. Turn steering wheel several times from stop to stop.
3. Turn the steering wheel clockwise or counter clockwise until it
reaches the stop and hold it for five seconds. Check for fluid
leak.
CAUTION:
Do not hold steering wheel at stop for 15 seconds or longer.
Otherwise, pump may be damaged.
4. If any leak is found on joint, loosen and retighten flair nut. Excessive tightening may damage O-ring,
washer, or connector.
Bleeding Hydraulic SystemEGS0004D
1. Lift vehicle.
2. Fill tank up to MAX mark. Turn steering wheel several times from stop to stop. Add fluid if fluid level goes
down. Repeat this step until there is no fluid decrease and no bubble in tank.
3. Start engine and repeat step above with engine at idle. Continue step until no decrease in fluid happens.
If bleeding is not complete, following symptoms can be observed.

Bubbles are created in reservoir tank.

Rattling noise can be heard from oil pump.

Whining noise can be heard from oil pump.
Turn steering wheel slowly or stop vehicle. Sound of fluid movement may be heard from gear valve and
pump. This sound has nothing to do with steering performance or durability.HOT : Oil temperature 50 to 80°C (122 to 176°F)
COLD : Oil temperature 0 to 30°C (32 to 86°F)
STC0996D
SST836C

STEERING WHEEL
PS-7
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PS

STEERING WHEELPFP:48430
On-Vehicle Inspection and ServiceEGS0004E
PLAY INSPECTION
1. Turn steering wheel to straight-ahead position. Start engine and lightly turn steering wheel clockwise and
counter clockwise until front wheels start moving. Measure travel to starting point on circumference of
steering wheel.
2. If play is outside specifications, check following parts for proper installation: steering gear assembly, front
suspension, axles, and steering column.

Check steering wheel for vertical, horizontal, or axial play.

Lift vehicle and check steering gear mounting bolts and nuts for looseness.
NEUTRAL POSITION INSPECTION

After the wheel alignment inspection, carry out the neutral position inspection. Refer to FSU-6, "Wheel
Alignment" .

Before removing steering wheel, check steering gear neutral position.
1. Set vehicle to straight-ahead position, and check that steering wheel is in neutral position.
2. If it is not in neutral position, remove steering wheel, and install again in properly.
3. If it is not adjusted within two teeth from center of gear, loosen tie rod lock nut. Then turn it to opposite
direction to adjust until amount of left and right becomes equal.
STEERING TORQUE CHECK
1. Stop vehicle on a dry flat paved road and apply parking brake.
2. Start engine and wait until power steering fluid warms up. Using
a preload gauge (SST), check rotating torque of steering wheel.
3. If torque is outside specifications, check rack sliding torque and
oil pump relief pressure.
STEERING ANGLE INSPECTION

After toe-in inspection, check steering angle. Place front wheels
on turning radius gauges and rear wheels on stands. Level the
vehicle. Check maximum inner and outer wheel steering angles
for LH and RH road wheels.Steering wheel play inspection standard : 0 - 35 mm (0 - 1.38 in)
Steering wheel axial endplay : 0 mm (0 in)
Tightening torque : 140 - 160 N·m (15 - 16 kg-m, 104 - 118 ft-lb)
Steering torque:
706 N·cm (72 kg-cm, 62 in-lb) or less
Rack sliding torque:
153 - 240 N (15.5 - 24.5 kg, 34.3 - 54.2 lb)
Oil pump relief hydraulic pressure:
8,000 - 8,800 kPa (81.4 - 87.3 bar, 83 - 89 kg/cm
2 , 1,180 - 1,266 psi)
STA0005D
FAA0016D