NISSAN X-TRAIL 2001 Service Repair Manual

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.

BRC-118
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Symptom 7: SLIP Indicator Lamp Does Not Illuminate
EFS001AY
Inspection procedure
1. SLIP INDICATOR LAMP BURNED-OUT BULB INSPECTION
Check for continuity between the power supply terminal of meter and terminal of ABS warning lamp.
Is inspection result OK?
YES >> GO TO 2.
NO >> Circuit malfunction in SLIP indicator lamp or combination meter
2. SLIP INDICATOR LAMP POWER CIRCUIT INSPECTION
Disconnect the meter connector. Check that the voltage between the vehicle-side harness terminal and body
ground is battery voltage (Approx. 12V).
Is inspection result OK?
YES >> GO TO 3.
NO >>
●Fuse inspection
●Inspection for harness and connectors between fuse block and meter
●Check the power supply circuit (battery and ignition switch circuit).
3. SLIP INDICATOR LAMP HARNESS INSPECTION
1. Disconnect connectors for the ESP/TCS/ABS control unit and meter vehicle-side harness.
2. Check the harness between the meter and the ESP/TCS/ABS control unit for an open/shorted circuit.
Is inspection result OK?
YES >> GO TO 4.
NO >> Repair or replace the disconnected harness.
4. SLIP INDICATOR LAMP CONNECTOR INSPECTION
Check connectors for the ESP/TCS/ABS control unit and meter vehicle-side harness.
Is inspection result OK?
YES >> Connect connectors, and perform the self-diagnosis. The vehicle harness has the intermediate
connector. Refer to the vehicle wiring diagram, always check it.
NO >> Repair or replace the disconnected connector.
Symptom 8: During ESP/TCS/ABS Control, Vehicle Behavior is Jerky.EFS001AZ
Inspection procedure
1. ENGINE SPEED SIGNAL INSPECTION
Perform “DATA MONITOR” with CONSULT-II for the ESP/TCS/ABS control unit.
Is the engine speed at idle 400 rpm or higher?
YES >> Normal
NO >> GO TO 2.
2. SELF-DIAGNOSIS RESULT CHECK 1
Perform the ESP/TCS/ABS control unit self-diagnosis.
Is the self-diagnosis results displayed?
YES >> After checking and repairing the applicable item, perform the ESP/TCS/ABS control unit self-
diagnosis again.
NO >> GO TO 3.

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.

BRC-120
[ESP/TCS/ABS]
ESP/TCS/ABS CONTROL UNIT
ESP/TCS/ABS CONTROL UNIT
PFP:47660
Removal and InstallationEFS001B0
REMOVAL
1. Remove the luggage floor board (rear).
2. Remove the ESP/TCS/ABS control unit.
INSTALLATION
●Installation is the reverse order of removal.
SFIA0333E

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”.

ESP/TCS/ABS ACTUATOR AND RELAY BOX
BRC-123
[ESP/TCS/ABS]
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ESP/TCS/ABS ACTUATOR AND RELAY BOXPFP:47850
Removal and InstallationEFS001CR
Be careful of the following.
CAUTION:
●Before servicing, disconnect the battery terminals.
●To remove the brake tube, use a flare nut wrench to prevent the flare nuts and brake tube from
being damaged. To install, use a brake tube torque wrench.
●Do not remove and install the actuator by holding the harness.
●After completing the work, bleed the brake piping of air. Refer to BR-10, "Bleeding Brake System" .
●Make sure to connect the ground terminal securely.
SFIA0927E

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

ESP OFF SWITCH
BRC-125
[ESP/TCS/ABS]
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ESP OFF SWITCHPFP:25145
Removal and InstallationEFS001CQ
REMOVAL
1. Remove the instrument lower driver panel. Refer to IP-7,
"INSTRUMENT LOWER DRIVER PANEL" .
2. Push the ESP OFF switch's pawls and remove the switch from
the instrument lower driver panel.
INSTALLATION
Installation is the reverse order of removal.
SFIA0390E

BRC-126
[ESP/TCS/ABS]
ESP OFF SWITCH