2003 NISSAN X-TRAIL secure

BRC-92
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
5.SENSOR ROTOR INSPECTION
Check sensor rotor tooth for damage.
Is inspection result OK?
YES >> Check the EPS/TCS/ABS control unit connector for disconnect, loose, bent and collapse termi-
nals. Securely connect them again. Perform the ESP/TCS/ABS control unit self-diagnosis again.
NO >> Replace sensor rotor.
Inspection 2 Engine SystemEFS001AC
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Are any items other than above indicated in the self-diagnosis results?
YES >> Repair or replace affected items.
NO >> GO TO 2.
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Perform the ECM self-diagnosis and repair or replace affected items, then perform the ECM self-diagno-
sis again.
2. Perform the ESP/TCS/ABS control unit self-diagnosis again.
Is inspection result OK?
OK >> Inspection End
NG >> Repair or replace affected items. Perform the self-diagnosis again.
Inspection 3 ESP/TCS/ABS Control Unit SystemEFS001AD
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Are any items other than
²CONTROLLER FAILURE²indicated in the self-diagnosis results?
YES >> Repair or replace affected items. Perform the self-diagnosis again.
NO >> Replace the ESP/TCS/ABS control unit and perform the ESP/TCS/ABS control unit self-diagno-
sis again.Self-diagnosis results
CONSULT-II indication item
ENGINE SYSTEM 1
ENGINE SYSTEM 2
ENGINE SYSTEM 3
ENGINE SYSTEM 4
ENGINE SYSTEM 6
Self-diagnosis results
CONSULT-II indication item
CONTROLLER FAILURE

TROUBLE DIAGNOSIS
BRC-97
[ESP/TCS/ABS]
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BRC
Inspection 7 Solenoid Valve, ESP Switch-over Solenoid Valve and CircuitEFS001AI
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Are any self-diagnosis result items above indicated?
>> GO TO 2.
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect the ESP/TCS/ABS control unit connector and solenoid valve connectors. Securely connect
them again.
2. Perform the self-diagnosis again.
Are any self-diagnosis result items indicated again?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.Self-diagnosis results
CONSULT-II indication item
FR LH IN ABS SOL
FR LH OUT ABS SOL
RR RH IN ABS SOL
RR RH OUT ABS SOL
FR RH IN ABS SOL
FR RH OUT ABS SOL
RR LH IN ABS SOL
RR LH OUT ABS SOL
USVLINE[FL-RR]
USVLINE[FR-RL]
HSVLINE[FL-RR]
HSVLINE[FR-RL]

TROUBLE DIAGNOSIS
BRC-101
[ESP/TCS/ABS]
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BRC
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors for the ESP/TCS/ABS control unit and the actuator. Securely connect them again.
2. Perform the self-diagnosis again.
Are any self-diagnosis items indicated again?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3.ACTUATOR MOTOR, MOTOR RELAY POWER SUPPLY CIRCUIT INSPECTION
1. Disconnect relay box connectors.
2. Check the voltage between the vehicle-side connector and body ground.
Is inspection result OK?
OK >> GO TO 4.
NG >>
lCheck the fuse 50A.
lCheck for continuity between the battery and the relay box terminal No. 10.
4.ACTUATOR MOTOR AND MOTOR RELAY CIRCUIT CHECK
1. Disconnect connectors for the ESP/TCS/ABS control unit and
the relay box.
2. Check for continuity between the ESP/TCS/ABS control unit,
the relay, and the actuator (vehicle-side connector).
Is inspection result OK?
YES >> GO TO 5.
NO >> Harness malfunction between the ESP/TCS/
ABS control unit, the relay box and the actuator.
SFIA0379E
Relay box
(Vehicle-side connector)Body ground Voltage value
10 – Battery voltage (approx. 12V)
ESP/TCS/ABS
control unit
(Vehicle-side
connector)Relay box
(Vehicle-side
connector)Actuator
(Vehicle-side
connector)Continuity
20 4 — Yes
78—Yes
— 41 [RHD] 21 [RHD] Yes
SFIA0380E

BRC-102
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
5.MOTOR RELAY UNIT INSPECTION
Check the motor relay as a unit.
Is inspection result OK?
YES >> Check the ESP/TCS/ABS control unit power supply circuit.
NO >> Replace the motor relay.
Inspection 9 Actuator Relay and CircuitEFS001AK
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Is
²MAIN RELAY²indicated in the self-diagnosis results?
>> GO TO 2.
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect the ESP/TCS/ABS control unit connector. Securely connect them again.
2. Perform the ESP/TCS/ABS control unit self-diagnosis again.
Is the same self-diagnosis item indicated?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3.ESP/TCS/ABS CONTROL UNIT GROUND CIRCUIT INSPECTION
Check the ESP/TCS/ABS control unit ground circuit.
Is inspection result OK?
OK >> GO TO 4.
NG >> Poorly connection on the ESP/TCS/ABS control unit connector or harness disconnection.Self-diagnosis results
CONSULT-II indication item
MAIN RELAY
SFIA0381E
ESP/TCS/ABS control unit
(Vehicle-side connector)Body ground Continuity
28 – Yes
29 – Yes

BRC-104
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
Inspection 10 Stop Lamp Switch and Circuit
EFS001AL
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK
Check the self-diagnosis results.
Is
²STOP LAMP SW²indicated in the self-diagnosis results?
>> GO TO 2.
2.STOP LAMP INSPECTION
1. Disconnect connectors for the stop lamp switch and the ESP/TCS/ABS control unit.
2. Securely connect them again.
3. Start the engine.
4. Repeat depressing the 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 the stop lamp switch and the ESP/
TCS/ABS control unit.
2. Check for continuity between the stop lamp switch (vehicle-side
connector) and the ESP/TCS/ABS control unit (vehicle-side
connector).
Is inspection result OK?
OK >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NG >> Harness disconnection between the ESP/TCS/ABS control unit and the 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 VOLTTAGE [ABNORMAL]“indicated in the self-diagnosis results?
>> GO TO 2.Self-diagnosis results
CONSULT-II indication item
STOP LAMP SW
SFIA0384E
ESP/TCS/ABS control unit
(Vehicle-side connector)STOP LAMP SW
(Vehicle-side connector)Continuity
48 2 Yes
Self-diagnosis results
CONSULT-II indication item
BATTERY VOLTTAGE [ABNORMAL]

TROUBLE DIAGNOSIS
BRC-105
[ESP/TCS/ABS]
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BRC
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect the ESP/TCS/ABS control unit connector. Securely connect them again.
2. Perform the self-diagnosis.
Is the same self-diagnosis item indicated?
YES >> GO TO 3.
NO >> Repair or replace the poorly connected connector.
3.ESP/TCS/ABS CONTROL UNIT POWER SUPPLY CIRCUIT INSPECTION 1
1. Disconnect the ESP/TCS/ABS control unit connector.
2. Turn the ignition switch ON (engine not running), and check the
voltage between the ESP/TCS/ABS control unit (vehicle-side
connector) and body ground.
Is inspection result OK?
YES >> GO TO 4.
NO >> GO TO 5.
4.ESP/TCS/ABS CONTROL UNIT GROUND CIRCUIT INSPECTION 1
Check the ESP/TCS/ABS control unit ground circuit.
Is inspection result OK?
OK >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NG >> Harness disconnection or improper installation of the ESP/TCS/ABS control unit.
SFIA0385E
ESP/TCS/ABS control unit
(Vehicle-side connector)Body ground Voltage value
1 – Battery voltage (approx. 12V)
SFIA0386E
ESP/TCS/ABS control unit
(Vehicle-side connector)Body ground Continuity
28 – Yes
29 – Yes

TROUBLE DIAGNOSIS
BRC-107
[ESP/TCS/ABS]
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BRC
2.SELF-DIAGNOSIS RESULT CHECK 2
Turn the ignition switch OFF, and ON to erase the self-diagnosis results. And perform the ESP/TCS/ABS con-
trol unit self-diagnosis again.
Is the same self-diagnosis item indicated again?
YES >> After replacing the spiral cable (with the steering angle sensor), perform the neutral position
adjustment. Then conduct the self-diagnosis again.
NO >> Inspection End
Inspection 14 Brake Fluid Level of Reservoir Tank, Communication Circuit
between ESP/TCS/ABS Control Unit and Brake Fluid Level Warning Switch
EFS001AQ
Inspection procedure
1.SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Does the brake warning light turn on?
YES >> Check the pad for wear. Check the brake fluid for leakage.
NO >> GO TO 2.
2.SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors for the brake fluid level warning switch and the ESP/TCS/ABS control unit.
2. Securely connect connectors. Perform the ESP/TCS/ABS control unit self-diagnosis again.
Is the same self-diagnosis item indicated again?
YES >> Poor connection of connector. Repair or replace the poorly connected connector.
NO >> GO TO 3.
3.CIRCUIT CHECK BETWEEN BRAKE FLUID LEVEL WARNING SWITCH AND ESP/TCS/ABS CON-
TROL UNIT
1. Disconnect connectors for the brake fluid level warning switch
and the ESP/TCS/ABS control unit.
2. Check for continuity between the brake fluid level warning switch (vehicle-side connector) and the ESP/
TCS/ABS control unit (vehicle-side connector).
Is inspection result OK?
OK >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NG >> Repair or replace the disconnected harness.Self-diagnosis results
CONSULT-II indication item
BR FLUID LEVEL LOW
SFIA0388E
ESP/TCS/ABS control unit
(Vehicle-side connector)Brake fluid level warning switch
(Vehicle-side connector)Continuity
40 1 Yes

ESP/TCS/ABS ACTUATOR AND RELAY BOX
BRC-121
[ESP/TCS/ABS]
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BRC
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.
SFIA0332E