2005 NISSAN X-TRAIL ignition

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-90
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

BASIC INSPECTION 3 ABS WARNING LAMP, ESP OFF INDICATOR LAMP, SLIP INDICATOR
LAMP AND BRAKE WARNING LAMP INSPECTION
1. Make sure ABS warning lamp, ESP OFF indicator lamp (when ESP OFF switch is OFF), and SLIP indica-
tor lamp turns on approximately 2 second, and brake warning lamp turns on when ignition switch is turned
ON. If they do not, check ESP OFF indicator lamp and then ESP OFF switch. Refer to BRC-109, "
ESP
OFF SWITCH" . Check CAN communications. Refer to “CAN Communication Inspection”. If there are no
malfunctions with ESP OFF switch and CAN communication system, check combination meter. Refer to
DI-4, "
COMBINATION METERS" .
2. Make sure ABS warning lamp, ESP OFF indicator lamp, SLIP indicator lamp turn off approximately 2 sec-
ond after turn ignition switch ON, and brake warning lamp turns off after engine starts. If lamps do not turn
off, perform self-diagnosis.
3. With engine running, make sure ESP OFF indicator lamp turns on and off when ESP OFF switch is turned
ON and OFF. If indicator lamp status does not correspond to switch operation, check the ESP OFF switch
system. Refer to BRC-109, "
ESP OFF SWITCH" .
4. Make sure ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp turn off 2 seconds after
engine is started. If ABS warning lamp, ESP OFF indicator lamp, and SLIP indicator lamp have not turned
off 10 seconds after engine has been started, perform self-diagnosis of ESP/TCS/ABS control unit.
5. After performing the self-diagnosis, be sure to erase the diagnostic memory. Refer to BRC-28, "
SELF-
DIAGNOSIS" .
CAUTION:
Brake warning lamp turns on when parking brake is operated (switch on) and brake fluid level
switch is activated (leak of brake fluid).

TROUBLE DIAGNOSIS
BRC-91
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

Inspection 1 Wheel Sensor SystemEFS005W6
INSPECTION PROCEDURE
Check each part according to CONSULT-II self-diagnostic results, and then identify the parts to be replaced.
CAUTION:
Do not check between wheel sensor terminals.
1. CHECK TYRE
Check air pressure, wear and size.
Are air pressure, wear and size within standard?
YES >> GO TO 2.
NO >> Adjust air pressure, or replace tyre.
2. CHECK SENSOR AND SENSOR ROTOR

Check sensor and sensor rotor.

Check sensor rotor rubber for damage.

Check sensor for disconnection or looseness.
Is inspection result OK?
OK >> GO TO 3.
NG >> Repair sensor mount or replace sensor rotor.
3. CHECK SELF-DIAGNOSTIC RESULTS
Check the self-diagnostic results.
Is above displayed on self-diagnosis displayed?
YES >> GO TO 4.
NO >> INSPECTION END
4. CHECK CONNECTOR
1. Turn ignition switch OFF, disconnect connector between ESP/TCS/ABS control unit and malfunctioning
wheel sensor, and check for deformation, disconnection and looseness. Repair or replace if necessary.
2. Reconnect connectors, drive vehicle at 30 km/h or more for approximately 1 minute, and then perform
self-diagnosis.
OK or NG
OK >> Poor connection of connector terminal
NG >> GO TO 5.
Self-diagnostic results
ABS SENSOR [ABNORMAL SIGNAL]
FR RH SENSOR-1
FR RH SENSOR-2
FR LH SENSOR-1
FR LH SENSOR-2
RR RH SENSOR-1
RR RH SENSOR-2
RR LH SENSOR-1
RR LH SENSOR-2

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-99
[ESP/TCS/ABS]
C
D
E
G
H
I
J
K
L
MA
B
BRC

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)

BRC-106
[ESP/TCS/ABS]
TROUBLE DIAGNOSIS

2. SELF-DIAGNOSTIC RESULT CHECK 2
1. Disconnect 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 ESP/TCS/ABS control unit connector.
2. Turn ignition switch ON (engine not running), and check the volt-
age between ESP/TCS/ABS control unit 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 ESP/TCS/ABS control unit ground circuit.
Is inspection result OK?
YES >> Perform the ESP/TCS/ABS control unit self-diagnosis again.
NO >> Harness disconnection or improper installation of the ESP/TCS/ABS control unit.
SFIA2186E
ESP/TCS/ABS control unit
(harness connector E122)Body ground Voltage value
1 (G/R) – Battery voltage (approx. 12V)
SFIA2187E
ESP/TCS/ABS control unit
(harness connector E122)Body ground Continuity
28 (B)
–Yes
29 (B)

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