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![NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
BRC-91
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Inspection 2 Engine SystemEFS001AC
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Are any i NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
BRC-91
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Inspection 2 Engine SystemEFS001AC
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Are any i](/manual-img/5/57404/w960_57404-2904.png)
TROUBLE DIAGNOSIS
BRC-91
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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?
YES >> Inspection end
NO >> 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
“CONTROLLER FAILURE” indicated in the self-diagnosis results?
YES >> Repair or replace affected items. Perform the self-diagnosis again.
NO >> Replace ESP/TCS/ABS control unit and perform ESP/TCS/ABS control unit self-diagnosis again.
Inspection 4 Pressure Sensor and the Circuit between Pressure Sensor and
ESP/TCS/ABS Control Unit.
EFS001AE
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Is
“ PRESS SEN CIRCUIT” indicated in the self-diagnosis results?
>> GO TO 2.
Self-diagnosis results
ENGINE SYSTEM 1
ENGINE SYSTEM 2
ENGINE SYSTEM 3
ENGINE SYSTEM 4
ENGINE SYSTEM 6
Self-diagnosis results
CONTROLLER FAILURE
Self-diagnosis results
PRESS SEN CIRCUIT
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![NISSAN X-TRAIL 2003 Service Repair Manual BRC-92
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
2. SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors of pressure sensor and ESP/TCS/ABS control unit, and connect them again cor-
rectly.
2. Perform ESP/T NISSAN X-TRAIL 2003 Service Repair Manual BRC-92
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
2. SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors of pressure sensor and ESP/TCS/ABS control unit, and connect them again cor-
rectly.
2. Perform ESP/T](/manual-img/5/57404/w960_57404-2905.png)
BRC-92
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
2. SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect connectors of pressure sensor and ESP/TCS/ABS control unit, and connect them again cor-
rectly.
2. Perform ESP/TCS/ABS control unit self-diagnosis again.
Is inspection result OK?
YES >> Repair or replace the poorly connected connector, then perform the self-diagnosis again.
NO >> GO TO 3.
3. PRESSURE SENSOR CIRCUIT INSPECTION
1. Disconnect connectors of pressure sensor and ESP/TCS/
ABS control unit.
2. Check for continuity between ESP/TCS/ABS control unit and
pressure sensor (harness connector E67).
Is inspection result OK?
YES >> GO TO 4.
NO >> Repair or replace the disconnected harness.
4. PRESSURE SENSOR INSPECTION
Check the “PRESS SENSOR” value in “DATA MONITOR”.
Is inspection result OK?
YES >> Perform ESP/TCS/ABS control unit self-diagnosis again.
NO >> Pressure sensor malfunction. Replace ESP actuator (with the pressure sensor).
SFIA2192E
ESP/TCS/ABS control unit
(harness connector E122)Pressure sensor
(ESP actuator harness connector E67)Continuity
69 (P/L) 30 (P/L) Yes
68 (L/OR) 31 (L/OR) Yes
67 (G/B) 32 (G/B) Yes
Condition PRESS SENSOR (Data monitor)
Brake pedal depressed Positive value
Brake pedal released Approx. 0 bar
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TROUBLE DIAGNOSIS
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Inspection 5 Steering Angle Sensor and Circuit between Steering Angle Sensor
and ESP/TCS/ABS Control Unit.
EFS001AF
Inspection procedure
1. SELF-DIAGNOSIS RESULT CHECK 1
Check the self-diagnosis results.
Perform the inspection 15.
Refer to BRC-107, "
Inspection 15 CAN Communication Circuit, ESP/TCS/ABS Control Unit and Steering
Angle Sensor" .
Is
“ST ANG SEN CIRCUIT” indicated in the self-diagnosis results.
>> GO TO 2.
2. SELF-DIAGNOSIS RESULT CHECK 2
1. Repair or replace the poorly connected connector
–Check connector housing for disconnect, loose, bent and collapse terminals
If any malfunction are detected, repair or replace the applicable part.
2. Perform the ESP/TCS/ABS control unit self-diagnosis again.
Is inspection result OK?
YES >> Inspection END
NO >> GO TO 3.
Self-diagnosis results
ST ANGLE SEN CIRCUIT
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![NISSAN X-TRAIL 2003 Service Repair Manual BRC-94
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
3. STEERING ANGLE SENSOR CIRCUIT CHECK
1. Disconnect ESP/TCS/ABS control unit connector and steering angle sensor connector.
2. Check for continuity between ES NISSAN X-TRAIL 2003 Service Repair Manual BRC-94
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
3. STEERING ANGLE SENSOR CIRCUIT CHECK
1. Disconnect ESP/TCS/ABS control unit connector and steering angle sensor connector.
2. Check for continuity between ES](/manual-img/5/57404/w960_57404-2907.png)
BRC-94
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
3. STEERING ANGLE SENSOR CIRCUIT CHECK
1. Disconnect ESP/TCS/ABS control unit connector and steering angle sensor connector.
2. Check for continuity between ESP/TCS/ABS control unit and
steering angle sensor (harness connector M81).
3. Check for the continuity between the steering angle sensor and
ground.
Is inspection result OK?
YES >> GO TO 4.
NO >> Repair or replace the disconnected harness.
4. DATA MONITOR CHECK
Perform the “STR ANGLE SIG” value in “DATA MONITOR” and check that it is in normal condition.
Is inspection result OK?
YES >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NO >> Replace the spiral cable (with the steering angle sensor) and adjust the neutral position of steer-
ing angle sensor. BRC-51, "
Adjustment of Steering Angle Sensor Neutral Position" .
SFIA2032E
ESP/TCS/ABS control unit
(harness connector E122)Steering angle sensor
(harness connector M81)Continuity
2 (Y/R) 3 (Y/R) Yes
SFIA2033E
Steering angle sensor
(harness connector M81)ground Continuity
2 (B/R) — Yes
Steering condition STR ANGLE SIG (Data monitor)
Straight-ahead – 5 ° to + 5 °
Turn the wheel to the right by 90°Approx. + 90 °
Turn the wheel to the left by 90°Approx. – 90 °
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Inspection 6 Yaw Rate/Side G sensor and the Circuit between Yaw Rate/Side G
sensor and ESP/TCS/ABS Control Unit.
EFS001AG
Inspectio NISSAN X-TRAIL 2003 Service Repair Manual TROUBLE DIAGNOSIS
BRC-95
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Inspection 6 Yaw Rate/Side G sensor and the Circuit between Yaw Rate/Side G
sensor and ESP/TCS/ABS Control Unit.
EFS001AG
Inspectio](/manual-img/5/57404/w960_57404-2908.png)
TROUBLE DIAGNOSIS
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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
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![NISSAN X-TRAIL 2003 Service Repair Manual BRC-96
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
3. YAW RATE SENSOR/SIDE G SENSOR CIRCUIT CHECK
Check that “YAW RATE SEN” and “SIDE G-SENSOR” are in normal operation in “DATA MONITOR”.
Is inspecti NISSAN X-TRAIL 2003 Service Repair Manual BRC-96
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
3. YAW RATE SENSOR/SIDE G SENSOR CIRCUIT CHECK
Check that “YAW RATE SEN” and “SIDE G-SENSOR” are in normal operation in “DATA MONITOR”.
Is inspecti](/manual-img/5/57404/w960_57404-2909.png)
BRC-96
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
3. YAW RATE SENSOR/SIDE G SENSOR CIRCUIT CHECK
Check that “YAW RATE SEN” and “SIDE G-SENSOR” are in normal operation in “DATA MONITOR”.
Is inspection result OK?
YES >> Perform ESP/TCS/ABS control unit self-diagnosis again.
NO >> The yaw rate/side G sensor malfunction. After replacing the sensor, perform the self-diagnosis of
ESP/TCS/ABS control unit again.
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?
YES >> GO TO 2.
NO >> INSPECTION END.
2. SELF-DIAGNOSIS RESULT CHECK 2
1. Disconnect 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.Vehicle statusYAW R AT E S E N
(DATA MONITOR) SIDE G-SENSOR
(DATA MONITOR)
While the vehicle is stopped
– 4 to + 4 °/s
–1.1 to + 1.1 m/s
2
Right turn Negative value Negative value
Left turn Positive value Positive value
Self-diagnosis results
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
USV LINE [FL-RR]
USV LINE [FR-RL]
HSV LINE [FL-RR]
HSV LINE [FR-RL]
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TROUBLE DIAGNOSIS
BRC-97
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3. SOLENOID VALVE INPUT SIGNAL CHECK.
1. Disconnect ESP/TCS/ABS control unit connector.
2. Turn ignition switch ON and check the voltage between ESP/
TCS/ABS control unit and body ground.
Is inspection result OK?
YES >> Check ESP/TCS/ABS control unit power supply circuit.
NO >> GO TO 4.
SFIA2193E
ESP/TCS/ABS control unit
(harness connector E122)Body ground Voltage
26 (W/G) –
Battery voltage (approx.12V) 5 (G/OR) –
6 (PU/W) –
53 (P) –
55 (R/Y) –
3 (Y/G) –
4 (GY/R) –
25 (LG) –
49 (B/W) –
50 (R/G) –
54 (W/L) –
52 (PU) –
Page 2912 of 4179
BRC-98
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS
4. SOLENOID VALVE LINE CHECK
1. Disconnect connectors for ESP/TCS/ABS control unit and ESP actuator.
2. Check for continuity between ESP/TCS/ABS control unit and
ESP actuator (harness connector E67and E68).
Is inspection result OK?
YES >> GO TO 5.
NO >> Harness disconnection between ESP/TCS/ABS control unit and the actuator
SFIA2194E
ESP/TCS/ABS control unit
(harness connector E122)ESP Actuator
(harness connector E67 and E68)Continuity
26 (W/G) 3 (W/G) Yes
5 (G/OR) 1 (G/OR) Yes
6 (PU/W) 7 (PU/W) Yes
53 (P) 5 (P) Yes
55 (R/Y) 15 (R/Y) Yes
3 (Y/G) 14 (Y/G) Yes
4 (GY/R) 17 (GY/R) Yes
25 (LG) 16 (LG) Yes
49 (B/W) 26 (B/W) Yes
50 (R/G) 25 (R/G) Yes
54 (W/L) 28 (W/L) Yes
52 (PU) 27 (PU) Yes