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![NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-117
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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 t NISSAN X-TRAIL 2003 Electronic Repair Manual TROUBLE DIAGNOSIS
BRC-117
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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 t](/manual-img/5/57402/w960_57402-984.png)
TROUBLE DIAGNOSIS
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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?
OK >> GO TO 5.
NG >> Connector malfunction. Repair or replace the connector.
5.SELF-DIAGNOSIS RESULT CHECK 3
Perform the 4WD control unit self-diagnosis.
Is inspection result OK?
OK >> GO TO 6.
NG >> Repair or replace the applicable part.
6.SELF-DIAGNOSIS RESULT CHECK 4
Perform the ESP/TCS/4WD 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/ABS control unit and ECM for an open/
shorted circuit.
3. Check connectors for the ESP/TCS/ABS control unit and ECM.
Is inspection result OK?
OK >> Inspection End
NG >> Repair or replace the applicable item and perform the ESP/TCS/ABS control unit self-diagnosis
again.
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BRC-118
[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
lInstallation is the reverse order of removal.
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WHEEL SPEED SENSORS
BRC-119
[ESP/TCS/ABS]
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WHEEL SPEED SENSORSPFP:47910
Removal and InstallationEFS001CD
CAUTION:
lBe careful not to damage sensor edge and rotor tooth. Before removing front or rear wheel hub,
remove wheel speed sensor to avoid sensor wiring damage. Otherwise, sensor may be deacti-
vated.
lWhen removing sensor, avoid rotating it as much as possible. Do not forcibly pull sensor harness.
lWhen 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.
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BRC-120
[ESP/TCS/ABS]
SENSOR ROTOR
SENSOR ROTOR
PFP:47970
Removal and InstallationEFS001CE
REMOVAL
Front
1. Remove drive shaft. Refer toFAX-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 toRAX-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 toFAX-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 toRAX-9, "Installation"in “RAX Rear Axle/Drive Shaft”.
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ESP/TCS/ABS ACTUATOR AND RELAY BOX
BRC-121
[ESP/TCS/ABS]
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ESP/TCS/ABS ACTUATOR AND RELAY BOXPFP:47850
Removal and InstallationEFS001CR
Be careful of the following.
CAUTION:
lBefore servicing, disconnect the battery terminals.
lTo 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.
lDo not remove and install the actuator by holding the harness.
lAfter completing the work, bleed the brake piping of air. Refer toBR-10, "Brake Burnishing Proce-
dure".
lMake sure to connect the ground terminal securely.
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BRC-122
[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 toSRS-39, "DIAGNO-
SIS SENSOR UNIT".
2. Disconnect the harness connector.
3. Remove the mounting bolts, and remove the yaw rate / side G
sensor.
CAUTION:
Do not drop or strike the yaw rate / side G sensor, because it
has little endurance against impact.
INSTALLATION
lInstallation is the reverse order of removal.
CAUTION:
Do not drop or strike the yaw rate / side G sensor, because it has little endurance against impact.
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ESP OFF SWITCH
BRC-123
[ESP/TCS/ABS]
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ESP OFF SWITCHPFP:25145
Removal and InstallationEFS001CQ
REMOVAL
1. Remove the instrument lower driver panel. Refer toIP-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.
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BRC-124
[ESP/TCS/ABS]
ESP OFF SWITCH