2001 NISSAN X-TRAIL sensor

TROUBLE DIAGNOSIS
BRC-115
[ESP/TCS/ABS]
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2.PEDAL FORCE INSPECTION
Check that the brake is effective with the pedal depressed.
Is the pedal 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 the brake is effective.
Is the brake effective?
YES >> GO TO 4.
NO >> Brake line inspection
4.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 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 the ABS warning lamp illuminates.
Does the ABS warning lamp illuminate?
YES >> Perform the self-diagnosis.
NO >> GO TO 4.

BRC-116
[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 at the engine start.
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 the pedal 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

TROUBLE DIAGNOSIS
BRC-117
[ESP/TCS/ABS]
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3.SYMPTOM CHECK 3
Does the symptom appear during normal braking operation?
CAUTION:
ABS may work in following driving conditions even if there is no sudden brake.
●When road friction is low.
●High speed cornering
●When a gust of wind
Is inspection result OK?
YES >> GO TO 4.
NO >> Normal
4.SYMPTOM CHECK 4
Check that the symptom is reproduce when the engine speed is increased with the vehicle stopped.
Is inspection result OK?
YES >> GO TO 5.
NO >>
●Normal.
CAUTION:
This symptom may appear with vehicle stopped.
5.SYMPTOM CHECK 5
Check that the symptom is reproduce when any switch of electrical equipment is operated.
Is inspection result OK?
YES >> Check that there are no radio, antenna, and antenna lead-in wires (including wiring) near control
unit.
NO >> GO TO 6.
6.ABS WARNING LAMP INSPECTION
Check that the ABS warning lamp turns on.
Is inspection result OK?
YES >> Perform the self-diagnosis.
NO >> GO TO 7.
7.WHEEL SENSOR INSPECTION
Check the wheel sensor system.
●Sensor mounting inspection
●Sensor pick-up inspection for iron chips (e.g. Number of teeth, damaged teeth)
●Sensor connector engagement inspection
●Wheel sensor path harness and connector inspection
Is inspection result OK?
YES >> Normal
NO >> Wheel sensor and rotor lines repair
Symptom 6: ESP OFF Indicator Lamp Does Not IlluminateEFS001AX
Inspection procedure
1.ESP OFF INDICATOR LAMP INSPECTION
Disconnect the ESP/TCS/ABS control unit connector.
Does the ABS warning lamp and ESP OFF indicator lamp illuminate?
YES >> ESP/TCS/ABS control unit malfunction. Repair or replace the control unit.
NO >> Combination meter system malfunction. Check the combination meter.

TROUBLE DIAGNOSIS
BRC-119
[ESP/TCS/ABS]
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3.ECM SELF-DIAGNOSIS RESULT CHECK
Perform the ECM self-diagnosis.
Is the self-diagnosis results indicated?
YES >> Repair or replace the camshaft position sensor system.
NO >> GO TO 4.
4.SELF-DIAGNOSIS RESULT 2
Disconnect connectors for the ESP/TCS/ABS control unit and ECM, and reconnect them correctly to perform
the self-diagnosis again.
Is inspection result OK?
YES >> GO TO 5.
NO >> Connector malfunction. Repair or replace the connector.
5.SELF-DIAGNOSIS RESULT CHECK 3
Perform the 4WD control unit self-diagnosis.
Is inspection result OK?
YES >> GO TO 6.
NO >> Repair or replace the applicable part.
6.SELF-DIAGNOSIS RESULT CHECK 4
Perform the ESP/TCS/ABS control unit self-diagnosis again.
Is the self-diagnosis results displayed?
YES >> Repair or replace the applicable item.
NO >> GO TO 7.
7.CIRCUIT CHECK BETWEEN ESP/TCS/ABS CONTROL UNIT AND ECM
1. Disconnect connectors for the ESP/TCS/ABS control unit and ECM.
2. Check the engine speed signal harness between the ESP/TCS/ABScontrol unit and ECM for an open/
shorted circuit.
3. Check connectors for the ESP/TCS/ABS control unit and ECM.
Is inspection result OK?
YES >> Inspection End
NO >> Repair or replace the applicable item and perform the ESP/TCS/ABS control unit self-diagnosis
again.

WHEEL SPEED SENSORS
BRC-121
[ESP/TCS/ABS]
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WHEEL SPEED SENSORSPFP:47910
Removal and InstallationEFS001CD
CAUTION:
●Be careful not to damage sensor edge and rotor tooth. Before removing front or rear wheel hub,
remove wheel sensor to avoid sensor wiring damage. Otherwise, sensor may be deactivated.
●When removing sensor, avoid rotating it as much as possible. Do not forcibly pull sensor harness.
●When installing, check sensor pick-up and mounting hole for foreign material such as iron chips.
Check no foreign material has been caught in sensor rotor. Remove any foreign material found.
Tighten mounting bolts and nuts to the specified torque.
SFIA0926E

BRC-122
[ESP/TCS/ABS]
SENSOR ROTOR
SENSOR ROTOR
PFP:47970
Removal and InstallationEFS001CE
REMOVAL
Front
1. Remove drive shaft. Refer to FAX-11, "REMOVAL" in “FAX Front Axle”.
2. Remove sensor rotor from drive shaft. Refer to “FAX Front axle/Drive shaft ” FAX-13, "
DISASSEMBLY"
Rear
1. Remove drive shaft. Refer to RAX-9, "Removal" in “RAX Rear Axle/Drive Shaft”.
2. Remove sensor rotor from drive shaft. Refer to “RAX Rear axle/Drive shaft” RAX-10, "
DISASSEMBLY"
INSTALLATION
Front
1. Install sensor rotor to drive shaft. Refer to “FAX Front axle/Drive shaft” FAX-15, "ASSEMBLY"
2. Connect drive shaft. Refer to FAX-12, "INSTALLATION" in “FAX Front Axle/Drive Shaft”.
Rear
1. Install sensor rotor to drive shaft. Refer to RAX Rear axle/Drive shaft” RAX-12, "ASSEMBLY"
2. Connect drive shaft. Refer to RAX-9, "Installation" in “RAX Rear Axle/Drive Shaft”.

BRC-124
[ESP/TCS/ABS]
YAW RATE/SIDE G SENSOR
YAW RATE/SIDE G SENSOR
PFP:47931
Removal and InstallationEFS001CS
REMOVAL
1. Remove the diagnosis sensor unit. Refer to SRS-40, "DIAGNO-
SIS SENSOR UNIT" .
2. Disconnect the harness connector.
3. Remove the mounting bolts, and remove the yaw rate and side
G sensor.
CAUTION:
Do not drop or strike the yaw rate and side G sensor, because it
has little endurance against impact.
INSTALLATION
●Installation is the reverse order of removal.
CAUTION:
Do not drop or strike the yaw rate and side G sensor, because it has little endurance against impact.
SFIA0928E

PREPARATION
FAX-3
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PREPARATIONPFP:00002
Special Service ToolsEDS0005Q
Tool number
Tool nameDescription
HT7252000
Ball joint removerRemoving tie-rod outer end and lower ball
joint
KV38107800
Protector
a: 29 mm (1.14 in) dia.
KV38105500
Protector
a: 40 mm (1.57 in) dia.Installing the drive shaft
ST17130000
Drift
a: 32 mm (1.26 in) dia.
b: 60 mm (1.57 in) dia.Disassembling support bearings
ST35271000
Drift
a: 72 mm (2.83 in) dia.
b: 63 mm (2.48 in) dia.Assembling support bearings
Installing wheel bearings
ST33252000
Drift
a: 82 mm (3.23 in) dia.
b: 60 mm (2.36 in) dia.Assembling support bearings
KV38100500
Drift
a: 80 mm (3.15 in) dia.
b: 60 mm (2.36 in) dia.Installing ABS sensor rotors
KV40101840
Collar
a: 67 mm (2.64 in) dia.
b: 85 mm (3.35 in) dia.Installing ABS sensor rotors
S-NT146
ZZA0835D
ZZA0836D
ZZA0837D
ZZA0838D
ZZA0701D
Z Z A 111 3 D