2005 NISSAN X-TRAIL steering

TROUBLE DIAGNOSIS
BRC-83
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

(note) “ACTUATOR RLY” on the CONSULT-II self-diagnosis results indicates the malfunction of the actuator motor relay and circuit.
DATA MONITOR
For details of the data monitor function, refer to CONSULT-II Instruction Manual.
USV LINE [FL-RR]ESP switch-over solenoid valve 1 on the primary side is open cir-
cuit or shorted, or the control line is open or shorted to the power
supply or the ground.
ESP switch-over sole-
noid valve and circuit.
Refer to BRC-98
. USV LINE [FR-RL]ESP switch-over solenoid valve 1 on the secondary side is open
circuit or shorted, or the control line is open or shorted to the
power supply or the ground.
HSV LINE [FL-RR]ESP switch-over solenoid valve 2 on the primary side is open cir-
cuit or shorted, or the control line is open or shorted to the power
supply or the ground.
HSV LINE [FR-RL]ESP switch-over solenoid valve 2 on the secondary side is open
circuit or shorted, or the control line is open or shorted to the
power supply or the ground.
PUMP MOTOR
ACTUATOR RLY (note) During the actuator motor operating with ON, when the actuator
motor turns OFF, or when the control line for actuator motor relay
is open.Actuator motor, motor
relay, and circuit. Refer
to BRC-101
During the actuator motor operating with OFF, when the actuator
motor turns ON, or when the control line for relay is shorted to
ground.
ABS SENSOR
[ABNORMAL SIGNAL]Wheel sensor input is malfunction.Wheel sensor and cir-
cuit. Refer to BRC-91
BATTERY VOLTAGE
[ABNORMAL]ESP/TCS/ABS control unit battery voltage is too low.ESP/TCS/ABS control
unit battery voltage cir-
cuit and ground circuit.
Refer to BRC-105
ST ANGLE SEN SIGNALNeutral position correction of steering angle sensor is not fin-
ished.Neutral position adjust-
ment of steering angle
sensor. Refer to BRC-
107
ST ANG SEN COM CIRCAN communication system or steering angle sensor is malfunc-
tion.Steering angle sensor
and CAN communication
circuit. Refer to BRC-109
SIDE G-SEN CIRCUITSide G sensor is malfunction, or circuit of side G sensor is open
or shorted.Yaw rate/ Side G sensor
and circuit. Refer to
BRC-97
EMERGENCY BRAKEESP/TCS/ABS control unit malfunction (pressure increase is too
much or too little.)ESP/TCS/ABS control
unit. Refer to BRC-107
CONTROLLER FAILURE ESP/TCS/ABS internal malfunction of control unitESP/TCS/ABS control
unit. Refer to BRC-93
CAN COMM CIRCUIT

CAN communication line is open or shorted.

ESP/TCS/ABS control unit internal malfunction.

Battery voltage for ECM is interrupted instantaneously for
Approx. 0.5 seconds or more.Communication circuit
between ESP/TCS/ABS
control unit and units.
Refer to BRC-109
BR FLUID LEVEL LOWBrake fluid level drops or communication line between the ESP/
TCS/ABS control unit and brake fluid level warning switch is open
or shorted. Communication circuit
between the ESP/TCS/
ABS control unit and the
brake fluid level warning
switch.
Reservoir tank fluid.
Refer to BRC-108

ENGINE SIGNAL 1-4, 6 Major engine components are malfunction Engine system. Refer to
BRC-93
Self-Diagnostic item Malfunction detecting condition Check route

BRC-84
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

Operation Procedure
1. After turning OFF ignition switch, connect CONSULT-II and CONVERTER to data link connector.
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carry out CAN communication.
2. Turn ignition switch ON.
3. Touch “START (NISSAN BASED VHCL)”, “ABS”, “DATA MONITOR” in order on the CONSULT-II screen.
If “ABS” is not indicated, go to GI-35, "
CONSULT-II Data Link Connector (DLC) Circuit" .
CAUTION:
When “START (NISSAN BASED VHCL)” is touched immediately after starting engine or turning on
ignition switch, “ABS” might not be displayed in the system selection screen. In this case, repeat
the operation from step 1.
4. Return to the Monitor Item Selection screen, and touch “ECU INPUT SIGNALS”, “MAIN SIGNALS” or
“SELECTION FROM MENU”. Refer to the following information.
5. When “START” is touched, the data monitor screen is displayed.
Display Item List
Data Monitor Item (Unit)Data Monitor item selection
Remarks
ECU INPUT
SIGNALSMAIN
SIGNALSSELECTION
FROM MENU
GEAR (A/T MODEL)×××The gear position determined
from A/T PNP switch signal is dis-
played.l
SLCT LVR POSI (A/T MODEL)×××Shift position determined from the
A/T PNP switch signal is dis-
played.
FR RH SENSOR [km/h]×××Wheel speed calculated by front
RH wheel sensor signal is dis-
played.
FR LH SENSOR [km/h]×××Wheel speed calculated by front
LH wheel sensor signal is dis-
played.
RR RH SENSOR [km/h]×××Wheel speed calculated by rear
RH wheel sensor signal is dis-
played.
RR LH SENSOR [km/h]×××Wheel speed calculated by rear
LH wheel sensor signal is dis-
played.
ACCEL POS SIG
(%)×––Throttle valve open/close status
judged by the CAN communica-
tion signal is displayed.
ENGINE RPM
(rpm)×–×Engine speed judged by the CAN
communication signal is dis-
played.
CAN COM START
(ON/OFF)––×Communication status of CAN
communication is displayed.
STR ANGLE SIG
(°)×–×Steering wheel angle detected by
the steering angle sensor is dis-
played.
YAW RATE SEN
(d/s)××–Yaw rate detected by the yaw rate
sensor is displayed.
SIDE G-SENSOR
(m/s
2 )×–×Transverse acceleration detected
by the side G sensor is displayed.
PRESS SENSOR
(bar )×–×Brake fluid pressure detected by
the pressure sensor is displayed.

BRC-88
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

For Fast and Accurate DiagnosisEFS005W4
PRECAUTIONS FOR DIAGNOSIS

Before performing diagnosis, always read precautions. Refer to BRC-60, "How to Proceed With Diagno-
sis" .

If ESP/TCS/ABS control unit steering angle sensor, steering system parts or suspension system parts
have been replaced, or if alignment has been adjusted, be sure to adjust neutral position of steering angle
sensor before driving. Refer to BRC-52, "
Adjustment of Steering Angle Sensor Neutral Position" .

After diagnosis is finished, be sure to erase memory. Refer to BRC-81, "SELF-DIAGNOSIS" .

When checking continuity and voltage between units, be sure to check for disconnection, looseness,
bend, or collapse of connector terminals. If any malfunction is found, repair or replace connector termi-
nals.

For intermittent symptoms, possible cause is malfunction in harness, harness connector, or terminals.
Move harness, harness connector, and terminals to check for poor connections.

If a circuit tester is used for the check, be careful not to forcibly extend any connector terminal.

To use CONSULT-II to perform self-diagnosis of ESP/TCS/ABS control unit active tests, or work support,
first stop work, then connect CONSULT-II and select “ABS”.

While self-diagnostic results of CONSULT-II shows malfunction, if CONSULT-II active test is performed,
an engine system malfunction may be indicated. In this case, start engine to resume the normal screen.

ESP/TCS/ABS system electronically controls brake operation and engine output. The following symptoms
may be caused by normal operations:
ON and OFF Timing for ABS Warning Lamp, ESP OFF Indicator Lamp, SLIP Indicator Lamp,
Brake Warning Lamp
×: ON –: OFF Symptom Symptom description Result
Motor operation noiseThis is noise of motor inside ESP/TCS/ABS control unit. Slight noise
may occur during ESP, TCS, and ABS operation.
Normal
When the vehicle speed goes over 20 km/h (12.5 MPH), motor and
valves operating noise may be heard. It happens only once after ignition
switch is ON. This is a normal status of the system operation check.
System operation check
noiseWhen engine starts, slight “click” noise may be heard from engine room.
This is normal and is part of system operation check.Normal
ESP/TCS operation
(SLIP indicator lamp blink-
ing)TCS may activate momentarily if wheel speed changes when driving
over location where friction coefficient varies, when downshifting, or
when fully depressing accelerator pedal.Normal
Cancel the ESP/TCS
function for the
inspection on a chas-
sis dynamometer. When checking speed meter etc. with a 2-wheel-drive chassis dyna-
mometer, vehicle speed is not increased by pressing down on the accel-
erator.
ABS operation (Longer stop-
ping distance)On roads with low friction coefficients, such as snowy roads or gravel
roads, vehicles with ABS may require a longer stopping distance. There-
fore, when driving on such roads, avoid overconfidence and keep speed
sufficiently low.Normal
Insufficient feeling of accel-
erationDepending on road conditions, driver may feel that feeling of accelera-
tion is insufficient. This is because traction control, which controls
engine and brakes to achieve optimal traction, has the highest priority
(for safety). As a result, there may be times when acceleration is slightly
less than usual for the same accelerator pedal operation.Normal
ConditionABS warning
lampESP OFF indi-
cator lampSLIP indicator
lampBrake warning
lamp [Note 1]Remarks
Ignition SW OFF. – – – – –
Approx. 2 seconds after igni-
tion switch is turned ON.×××× [Note 2] –
Approx. 2 seconds later after
ignition switch ON.–––× [Note 2]Go out 2 seconds after
ignition switch is turned
ON.

BRC-92
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

5. CHECK WHEEL SENSOR HARNESS
1. Turn ignition switch OFF and disconnect malfunctioning wheel
sensor connector and ESP/TCS/ABS control unit connector.
2. Check continuity between terminals. (Also check continuity
when the steering wheel is turned right and left and when the
sensor harness inside the wheel house is moved.)
Is inspection result OK?
OK >> GO TO 6.
NG >> Repair or replace harness and connector that have malfunction.
6. CHECK WHEEL SENSOR
1. Replace wheel sensor that resulted in malfunction by self-diagnosis.
2. Reconnect connectors, drive vehicle at 30 km/h (19 MPH) or more for approximately 1 minute, and then
perform self-diagnosis.
Is above displayed on self-diagnosis display?
OK >> Wheel sensor has malfunction.
NG >>

Replace ESP/TCS/ABS control unit.

Perform to self-diagnosis again, and make sure that the result shows “NO DTC IS DETECTED.
FURTHER TESTING MAY BE REQUIRED.”
SFIA2200E
Power supply circuit Signal circuit Ground circuit
WheelESP/TCS/ABS
control unit
(harness con-
nector E122)Wheel sen-
sor (harness
connector)ESP/TCS/
ABS con-
trol unit
(harness
connector
E122)Wheel sen-
sor (harness
connector)ESP/TCS/ABS
control unit
(harness con-
nector E122)
(Signal)Ground
Front RH
(E17)16 (W) 1 (W) 15 (B) 2 (B) 15 (B), 16 (W)
— Front LH
(E59)10 (L/W) 1 (L/W) 8 (L/Y) 2 (L/Y)8 (L/Y), 10 (L/
W)
Rear RH
(B130)12 (B/W) 1 (B/W) 11 (L/R) 2 (L/R)11 (L/R), 12 (B/
W)
Rear LH
(B126)14 (BR) 1 (BR) 13 (BR/W) 2 (BR/W)13 (BR/W), 14
(BR)
Power supply circuit : Continuity should exist.
Signal circuit : Continuity should exist.
Ground circuit : Continuity should not exist.

TROUBLE DIAGNOSIS
BRC-95
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
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-107
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
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