2003 NISSAN X-TRAIL display

TROUBLE DIAGNOSIS
BRC-25
[4WD/ABS]
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B
BRC
Display item list
Faulty lines Malfunction detecting condition Check harness
Front RH wheel speed sensor
[OPEN]Either of following causes may be possible. Circuit of front RH
wheel speed sensor is open. Abnormally high input voltage is
caused by a short to power supply on signal lines.
Wheel speed sensor
harness Front LH wheel speed sensor
[OPEN]Circuit of front LH wheel speed sensor is open, or abnormally
high input voltage is caused by a short to power supply on signal
lines.
REAR RH wheel speed sensor
[OPEN]Either of following causes may be possible. Circuit of rear RH
wheel speed sensor is open. Abnormally high input voltage is
caused by a short to power supply on signal lines.
REAR LH wheel speed sensor
[OPEN]Either of following causes may be possible. Circuit of rear LH
wheel speed sensor is open. Abnormally high input voltage is
caused by a short to power supply on signal lines.
Front RH wheel speed sensor
[short 1]or Front RH wheel speed
sensor [short 2]
(Note 1), (Note 2)At RH front wheel speed sensor, following conditions occur:
abnormally high or low input voltage by short to power supply or
ground on signal lines, abnormal input signal
Front LH wheel speed sensor
[short 1]
or front left wheel speed sensor
[open 2]
(Note 1), (Note 2)At LH front wheel speed sensor, following conditions occur:
abnormally high or low input voltage by short to power supply or
ground on signal lines, abnormal input signal
Rear RH wheel speed sensor
[SHORT]
(Note 1), (Note 2)At RH rear wheel speed sensor, following conditions occur:
abnormally high or low input voltage by short to power supply or
ground on signal lines, abnormal input signal
Rear LH wheel speed sensor
[SHORT]
(Note 1), (Note 2)At LH rear wheel speed sensor, following conditions occur:
abnormally high or low input voltage by short to power supply or
ground on signal lines, abnormal input signal
FR RH IN ABS SOL
[OPEN] [SHORT]At RH front wheel ABS inlet solenoid valve, following conditions
occur: open circuit, output voltage is abnormally lower or higher
than control value by short to ground on control line.
ABS solenoid valve and
actuator relay harness FR LH IN ABS SOL
[OPEN] [SHORT]At LH front wheel ABS inlet solenoid valve, following conditions
occur: open circuit, output voltage is abnormally lower or higher
than control value by short to ground on control line.
RR RH IN ABS SOL
[OPEN] [SHORT]At RH rear wheel ABS inlet solenoid valve, following conditions
occur: open circuit, output voltage is abnormally lower or higher
than control value by short to ground on control line.
RR LH IN ABS SOL
[OPEN] [SHORT]At LH rear wheel ABS inlet solenoid valve, following conditions
occur: open circuit, output voltage is abnormally lower or higher
than control value by short to ground on control line.
FR RH OUT ABS SOL
[OPEN] [SHORT]At RH front wheel ABS outlet solenoid valve, following condi-
tions occur: open circuit, output voltage is abnormally lower or
higher than control value by short to ground on control line.
FR LH OUT ABS SOL
[OPEN] [SHORT]At LH front wheel ABS outlet solenoid valve, following conditions
occur: open circuit, output voltage is abnormally lower or higher
than control value by short to ground on control line.
RR RH OUT ABS SOL
[OPEN] [SHORT]At RH rear wheel ABS outlet solenoid valve, following conditions
occur: open circuit, output voltage is abnormally lower or higher
than control value by short to ground on control line.
RR LH OUT ABS SOL
[OPEN] [SHORT]At LH rear wheel ABS outlet solenoid valve, following conditions
occur: open circuit, output voltage is abnormally lower or higher
than control value by short to ground on control line.
ABS motor [ON error]ABS actuator motor turned ON when the ABS motor is con-
trolled OFF.ABS motor relay and
harness
ABS motor [OFF error]ABS actuator motor turned OFF when the ABS motor is con-
trolled ON.

BRC-26
[4WD/ABS]
TROUBLE DIAGNOSIS
(Note 1): When vehicle was stuck on slippery road, and spin its wheels for Approx. 10 - 80 seconds (the period depends on vehicle
speed). ABS warning lamp may come on. However, this is not abnormal.
(Note 2): Repair short circuit in sensor. ABS warning lamp will come on when ignition switch is turned ON. According to self-diagnosis
operation procedure, drive vehicle at Approx. 30 km/m (19 MPH). Then check ABS warning lamp goes out in about one minute.
CAUTION:
If “ALL MODE 4WD” is not displayed on system selection screen, check the following: 4WD actuator and control unit, data link
connector harness, and No. Of CONSULT-II program card
DATA MONITOR
lFor details of data monitor function, refer to CONSULT -II Instruction Manual.
Operation procedure
1. Turn the ignition switch to OFF.
2. Connect CONSULT-II connector to data link connector on vehicle.
3. Turn ignition switch ON.
4. Touch “START” on the display.
5. Touch “ALL MODE 4WD” on display.
CAUTION:
“ALL MODE 4WD” may not be displayed on the system selection screen in the following case:
When “START” was touched just after engine is started or ignition switch is turned to ON. In this
case, repeat procedure from step 2.
ABS actuator relay [ON error] ABS actuator relay turned ON wheel it is controlled OFF.
ABS actuator relay and
harness ABS ACTUATOR RELAY
[OFF abnormal]ABS actuator relay turned OFF wheel it is controlled ON.
BATTERY VOLTAGE [VB-HIGH] 4WD control module power voltage is excessively high.
Control unit power sup-
ply circuit
BATTERY VOLTAGE [VB-LOW] 4WD control module power voltage is excessively low.
DECEL G-SENSOR Longitudinal G -sensor output voltage is outside specification.
G -sensor harness
G-SENSOR VOLTAGEPower voltage of longitudinal G -sensor remains abnormally
high or low for a certain period of time.
ETS SOLENOID
(4WD solenoid valve) (OPEN)4WD solenoid valve control terminal is not supplied with proper
voltage due to open circuit in 4WD solenoid valve.
4WD actuator relay,
solenoid, and harness ETS SOLENOID
(4WD solenoid valve) (Short)4WD solenoid valve control terminal is not supplied with proper
voltage due to short circuit in 4WD solenoid valve.
ETS SOLENOID
(4WD solenoid valve)
(CURRENT FAILURE)
DECEL G-SEN MONICurrent supplied to 4WD solenoid valve is abnormally high or
low compared with the specification.
CONTROL UNIT Processing function of 4WD/ABS control unit is malfunctioning.4WD/ABS control unit,
power and ground cir-
cuits
DECEL G-SEN MONI Output voltage of longitudinal G -sensor is outside specification G -sensor harness
DECEL G-SEN IN Output voltage of longitudinal G -sensor is outside specification G -sensor harness
3 V POWER SUPPLY CHECK4WD/ABS control unit internal 3V power supply is malfunction-
ingControl unit power sup-
ply circuit
4WD A/R CHECK 4WD actuator relay turned ON while it is controlled OFF.
4WD actuator relay,
4WD solenoid and har-
ness. 4WD SOL/V CHECK4WD solenoid not supplied with proper voltage due to open cir-
cuit in 4WD solenoid valve.
CAN COMM
lCAN communication function of 4WD control units is not mal-
functoning.
lCAN communication function of EPS control unit, ECM is mal-
functioning.CAN communication
system of 4WD control
unit.
ABS 4WD COMM4WD/ABS control unit internal 3V power supply is malfunction-
ingEPS control unit
and harness Faulty lines Malfunction detecting condition Check harness

TROUBLE DIAGNOSIS
BRC-27
[4WD/ABS]
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6. Touch “DATA MONITOR”.
7. Return to monitor item selection screen. Touch any of “ECU INPUT SIGNALS”, “MAIN SIGNALS”,
“CAN DIG SUPPORT MINTR” or “SELECTION FROM MENU”.
Refer to following “Data monitor item chart”.
8. Touch “MONITOR START”.
9. Screen of data monitor is displayed.
Display item list
Item (Unit)Monitor item selection
Remarks
Control module input
itemMain item Item menu selection
FR RH SENSOR (km/
h)´´´Wheel speed calcu-
lated by front RH wheel
speed sensor signal is
displayed.
FR LH SENSOR (km/h)´´´Wheel speed calcu-
lated by front LH wheel
speed sensor signal is
displayed. (Note 1)
RR RH SENSOR (km/
h)´´´Wheel speed calcu-
lated by rear RH wheel
speed sensor signal is
displayed. (Note 1)
RR LH SENSOR (km/
h)´´´Wheel speed calcu-
lated by rear LH wheel
speed sensor signal is
displayed.
DECEL G-SENSOR´´´Condition of G -sensor
is displayed.
THRTL POS SEN´´´Indicates throttle posi-
tion sensor signal volt-
age
STOP LAMP SW´´´Operating condition of
ABS warning lamp by
control unit is dis-
played.
ENGINE SPEED SIG
(STOP/RUN)´´´Condition of stop lamp
switch (ON/OFF) is dis-
played.
FR RH IN SOL -´´Operating condition
(ON/OFF) of rear RH
ABS inlet solenoid
valve is displayed.
FR RH OUT SOL -´´Operating condition
(ON/OFF) of rear RH
ABS outlet solenoid
valve is displayed.
FR LH IN SOL -´´Operating condition
(ON/OFF) of rear RH
ABS inlet solenoid
valve is displayed.
FR LH OUT SOL (ON/
OFF)-´´Operating condition
(ON/OFF) of rear RH
ABS outlet solenoid
valve is displayed.

BRC-28
[4WD/ABS]
TROUBLE DIAGNOSIS
RR RH IN SOL (ON/
OFF)-´´Operating condition
(ON/OFF) of rear RH
ABS inlet solenoid
valve is displayed.
RR RH OUT SOL (ON/
OFF)-´´Operating condition
(ON/OFF) of rear RH
ABS outlet solenoid
valve is displayed.
RR LH IN SOL (ON/
OFF)-´´Operating condition
(ON/OFF) of rear RH
ABS inlet solenoid
valve is displayed.
RR LH OUT SOL (ON/
OFF)-´´Operating condition
(ON/OFF) of rear RH
ABS outlet solenoid
valve is displayed.
E-TS SOLENOID (A) -´´CurrentsuppliedtoE-
TS solenoid valve
ACTUATOR RLY (ON/
OFF)-´´Condition of ABS actu-
ator relay (ON/OFF) is
displayed.
MOTER RLY (ON/OFF) -´´Condition of ABS motor
relay(ON/OFF)isdis-
played.
E-TS ACTUATOR -´´E-TS actuator relay
ON/OFF condition
WARN ING LAM P (ON /
OFF)-´´Indicates ABS warning
lamp operating condi-
tion
G-SEN VOLT (V)´-´Condition of G -sensor
(ON/OFF) is displayed.
BATTERY VOLT´-´Indicates voltage sup-
plied by 4WD/ABS con-
trol unit
4WD WARNING LAMP -´´Indicates 4WD warn-
ing lamp operating con-
dition
4WD MODE SW -´´4WD mode recognized
by control module
4WD MODE MON -´´Output condition of
drive mode indicator
lamp signal
DISTIREMONI(mm) -´´Improper size tire
installed condition
PA R K B R A K E S W
(ON/OFF)-´´Indicates parking brake
switch ON/OFF condi-
tion
SPEED MTR O/P (km/
h)-´´Indicates vehicle speed
recognized by meter
control unit Item (Unit)Monitor item selection
Remarks
Control module input
itemMain item Item menu selection

TROUBLE DIAGNOSIS
BRC-29
[4WD/ABS]
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´: Applicable
–: Not applicable
ACTIVE TEST
Operation procedure
CAUTION:
lDo not perform active test wheel running.
lBe sure completely bleed air from brake system.
lActive test cannot be performed with ABS warning lamp on.
1. Connect CONSULT-II to data link connector and start engine.
2. Touch “START” on the display.
3. Touch “ABS”.
4. Touch “ACTIVE TEST”.
5. Test item selection screen is displayed.
6. Touch test item.
7. Touch “START” with “MAIN SIGNALS” line inverted.
8. Active test screen is displayed.
Display item list
ABS solenoid valve
Touch “UP,” “KEEP,” and “DOWN”. Check ABS solenoid valves
(inlet/outlet) operate as the following chart using screen monitor.
*: ON for 1 to 2 seconds after touch, and then OFFVo l ta g e - -´Displays values mea-
sured by voltage probe
FREQUENCY - -´Refer to CONSULT
operation manual. Item (Unit)Monitor item selection
Remarks
Control module input
itemMain item Item menu selection
SFIA0394E
Operation Up Keep Down
ABS inlet S/V OFF ON ON
ABS outlet S/V OFF OFF ON*
SFIA0395E

BRC-30
[4WD/ABS]
TROUBLE DIAGNOSIS
NOTE:
lIf active test is performed with brake pedal depressed, pedal
stroke may be changed. This is a normal condition.
l“TEST STOP” is displayed 10 seconds later from the operation
start.
lTo perform test again after “TEST STOP” is displayed, repeat
step 6 of operation procedure.
ABS motor
Touch “ON” and “OFF” on screen. Check ABS motor relay operates
as shown in the following chart.
NOTE:
lIf active test is performed with brake pedal depressed, pedal
stroke may be changed. This is a normal condition.
l“TEST STOP” is displayed 10 seconds later from the operation
start.
Active test
4WD solenoid valve
Under the vehicle stopped with engine running, touch UP, DOWN on
screen. Adjust 4WD solenoid command current.
Check the monitor current at that time. If monitor current is within
Approx.±10%, light switch is normal.
CAUTION:
Do not continuously energize solenoid for long period of time.
Component InspectionEFS001BJ
ABS ACTUATOR
lDisconnect each ABS actuator E69, E70, E71 connector. Con-
firm continuity and resistance value between each pair of ABS
actuator-side terminal.
CAUTION:
Be sure ABS motor is securely grounded.
SFIA0396E
Operation ON OFF
ABS actuator ON ON
ABS motor ON OFF
SFIA0397E
SDIA0626E
SFIA0352E

TROUBLE DIAGNOSIS
BRC-35
[4WD/ABS]
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B
BRC
3.G -SENSOR CIRCUIT CONNECTOR INSPECTION
1. Disconnect connectors and remove G -sensor from vehicle.
2. Check the voltage under following condition with ignition switch
ON: G sensor harness-side connector terminal M57 No.1 (W) -
Body ground
Is inspection result OK?
YES >> GO TO 4.
NO >> Replace 4WD/ABS control unit.
4.G -SENSOR UNIT INSPECTION
1. Using a test harness, connect 8.0V from the G -sensor harness
connector terminal M57 No.1 (W) to the G -sensor connector
terminal M57 No.1 (W).
2. Using a test harness, connect a ground from the G -sensor har-
ness connector terminal M57 No.3 (B) to the G -sensor connec-
tor terminal M57 No. 3 (B).
3. With ignition switch ON, when the G sensor is in horizontal,
check the output voltage under following condition with tilted for-
ward and backward by 90°and 0°: terminal M57 No.2 (LHD
models: R or RHD models: OR) - terminal M57 No.3 (B)
4. After inspection, install the G sensor. Erase diagnosis trouble code of the 4WD/ABS control unit.
Is inspection result OK?
YES >> GO TO 5.
NO >> Replace G -sensor.
5.WARNING LAMP DISPLAY CODE INSPECTION
1. Connect the connector and perform self-diagnosis again.
2. Follow self-diagnosis procedure. After diagnosis, be sure to drive the vehicle at 30 km/m (19 MPH) for 1
minute or longer and be sure that the ABS warning lamp does not come on.
>> Diagnosis completed
4WD SOLENOID, ACTUATOR RELAY SYSTEMEF S0 01 CA
Checking procedure
1.INSPECTION START
Use CONSULT-II and perform self-diagnosis.
OK or NG
OK >> Drive at 30 km/h (19 MPH) for at least 1 minute. Check that 4WD warning lamp does not turn ON.
NG >> GO TO 2.No.1 - Body ground :Approx. 8.0 V
SDIA0631E
No. 2 to No. 3 output voltage (V):
Horizontal :2.3-2.7
Tilted forward by 90°:0.80-0.86
Tilted rearward by 90°:3.87-4.47SDIA0632E

TROUBLE DIAGNOSIS
BRC-37
[4WD/ABS]
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BRC
7.CHECK 4WD ACTUATOR RELAY GROUND CIRCUIT
1. Disconnect the 4WD actuator relay connector.
2. Check continuity between the 4WD actuator relay harness connector E10 terminal No.3 (B) and body
ground.
OK or NG
OK >> 1. Connect the connector and perform self-diagnosis again.
2. Follow self-diagnosis procedure and, at the end, be sure to drive the vehicle at 30 km/h (19
MPH) for at least 1 minute and check that the 4WD warning lamp does not turn ON.
NG >> Repair or replace harness.
4WDMODESWITCHSYSTEMEF S0 01 CB
1.INPUT SIGNAL CHECK
Check using the data monitor function of the CONSULT-II. While monitoring the 4WD mode switch items,
press 2WD mode switch. Check the display changes from ## to 2WD. Check the display for AUTO and LOCK
just the same. (## indicates when mode SW is not pressed.)
OK or NG
OK >>l4WD/ABS control unit input/output signal inspection
lRecheck 4WD/ABS control unit connector terminals and connection.
NG >> GO TO 3.
2.INSPECTION OF 4WD MODE SWITCH POWER SUPPLY
lDisconnect 4WD mode switch connector.
lTurn ignition switch ON.
lMeasure voltage between 4WD mode change and over switch harness connector M39 terminal No.26 (L),
No.27 (BR).
OK or NG
OK >> GO TO 4.
NG >> Harness malfunction or connector malfunction between ignition switch and 4WD mode switch
connector or connector malfunction.
3.HARNESS CONTINUITY INSPECTION
lTurn ignition switch OFF.
lConfirm the continuity between the following terminals.
–4WD/ABS control unit harness connector E122 terminal No. 26 (L) and 4WD mode switch harness con-
nector M39 terminal No. 2 (L)
–4WD control unit harness connector E122 terminal No. 27 (BR) and 4WD mode switch harness connector
M39 terminal No. 1 (BR)
OK or NG
OK >> GO TO 5.
NG >> Malfunctioning harness or connector.3 (B) - Body ground :Continuity should exist.
26 (L), 27 (BR) - Body ground : 4 V or more.
26 (L) - 2 (L) : Continuity should exist.
27 (BR) - 1 (BR) : Continuity should exist.