2005 NISSAN X-TRAIL sensor

TROUBLE DIAGNOSIS
BRC-93
[ESP/TCS/ABS]
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B
BRC

Inspection 2 Engine SystemEFS005W7
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic 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-DIAGNOSTIC 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 SystemEFS005W8
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK
Check the self-diagnostic 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.
EFS005W9
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Is
“ PRESS SEN CIRCUIT” indicated in the self-diagnosis results?
>> GO TO 2.
Self-diagnostic results
ENGINE SYSTEM 1
ENGINE SYSTEM 2
ENGINE SYSTEM 3
ENGINE SYSTEM 4
ENGINE SYSTEM 6
Self-diagnostic results
CONTROLLER FAILURE
Self-diagnostic results
PRESS SEN CIRCUIT

BRC-94
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSTIC 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)
Ye s 68 (L/OR) 31 (L/OR)
67 (G/B) 32 (G/B)
Condition PRESS SENSOR (Data monitor)
Brake pedal depressed Positive value
Brake pedal released Approx. 0 bar

TROUBLE DIAGNOSIS
BRC-95
[ESP/TCS/ABS]
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BRC

Inspection 5 Steering Angle Sensor and Circuit between Steering Angle Sensor
and ESP/TCS/ABS Control Unit.
EFS005WA
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Perform the inspection 15.
Refer to BRC-109, "
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-DIAGNOSTIC 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-diagnostic results
ST ANGLE SEN CIRCUIT

BRC-96
[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-52, "
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 °

TROUBLE DIAGNOSIS
BRC-97
[ESP/TCS/ABS]
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MA
B
BRC

Inspection 6 Yaw Rate/Side G sensor and the Circuit between Yaw Rate/Side G
sensor and ESP/TCS/ABS Control Unit.
EFS005WB
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic 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-DIAGNOSTIC 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-diagnostic 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)
Ye s 77 (Y/B) 2 (Y/B)
34 (OR) 3 (OR)
79 (LG/R) 4 (LG/R)
18 (GY/L) 5 (GY/L)
80 (W/R) 6 (W/R)

BRC-98
[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 CircuitEFS005WC
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Are any self-diagnosis result items above indicated?
YES >> GO TO 2.
NO >> INSPECTION END
2. SELF-DIAGNOSTIC 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-diagnostic 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]

TROUBLE DIAGNOSIS
BRC-107
[ESP/TCS/ABS]
C
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MA
B
BRC

5. ESP/TCS/ABS CONTROL UNIT POWER SUPPLY CIRCUIT INSPECTION 2
1. Check the fuse 10A.
2. Check for continuity between the battery positive terminal and
ESP/TCS/ABS control unit.
Is inspection result OK?
YES >> Check battery for a loose terminal and low voltage or malfunction.
NO >>

Replace the fuse 10A.

Harness disconnection
Inspection 12 When “EMERGENCY BRAKE” is indicated in the Self-Diagnostic
Results
EFS005WH
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK
Check the self-diagnostic results.
When any items other than “EMERGENCY BRAKE” is displayed in the self-diagnosis results, follow the
instructions below.
CAUTION:
“EMERGENCY BRAKE” is indicated when the control unit itself is detected internal malfunction. If this
display item was indicated, replace the control unit.
Is
“EMERGENCY BRAKE” is indicated in the self-diagnosis results?
YES >> Replace ESP/TCS/ABS control unit, and perform the self-diagnosis again.
NO >> INSPECTION END
Inspection 13 When “ST ANG SEN SIGNAL” is Indicated in the Self-Diagnostic
Results
EFS005WI
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
When any items other than
“ST ANGLE SEN SIGNAL” is displayed in the self-diagnosis results:
YES >> Check and repair the applicable items. Perform the self-diagnosis again.
NO >> Perform the steering angle sensor neutral position adjustment. GO TO 2.
SFIA2188E
ESP/TCS/ABS control unit
(harness connector E122)Battery terminal Continuity
1 (G/R) positive Yes
Self-diagnostic results
EMERGENCY BRAKE
Self-diagnostic results
ST ANGLE SEN SIGNAL

BRC-108
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSTIC RESULT CHECK 2
Turn ignition switch OFF, and ON to erase the self-diagnosis results. And perform the ESP/TCS/ABS control
unit self-diagnosis again.
Is the same self-diagnosis item indicated again?
YES >> After replacing spiral cable (with the steering angle sensor), perform the neutral position adjust-
ment. 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
EFS005WJ
INSPECTION PROCEDURE
1. SELF-DIAGNOSTIC RESULT CHECK 1
Check the self-diagnostic results.
Does the brake warning lamp turn on?
YES >> Check the pad for wear. Check the brake fluid for leakage.
NO >> GO TO 2.
2. SELF-DIAGNOSTIC RESULT CHECK 2
1. Disconnect connectors for the brake fluid level switch and 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 >> GO TO 3.
NO >> Poor connection of connector. Repair or replace the poorly connected connector.
3. CIRCUIT CHECK BETWEEN BRAKE FLUID LEVEL WARNING SWITCH AND ESP/TCS/ABS CON-
TROL UNIT
1. Disconnect connectors for brake fluid level switch and ESP/
TCS/ABS control unit.
2. Check for the continuity between the brake fluid level switch and the ESP/TCS/ABS control unit.
Is inspection result OK?
YES >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NO >> Repair or replace the disconnected harness.
Self-diagnostic results
BR FLUID LEVER LOW
SFIA2196E
ESP/TCS/ABS control unit
(harness connector E122)Brake fluid level switch
(harness connector E19)Continuity
40 (Y/B) 1 (Y/B) Yes