NISSAN X-TRAIL 2001 Service Repair Manual

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-43
[EURO-OBD]
D
E
F
G
H
I
J
K
L
MA
B
AT
X: Applicable
—: Not applicable
*1: These malfunctions cannot be displayed by MIL if another malfunction is assigned to lamp MIL.
*2: Refer to EC-58, "
Malfunction Indicator (MI)" (QR25DE) or EC-790, "Malfunction Indicator (MI)" (QR20DE). Overrun clutch solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X P1760
OVERRUN CLUTCH
S/VO/R CLUCH SOL/
CIRC
T/C clutch solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X P0740
T/C CLUTCH SOL/V TCC SOLENOID/
CIRC
Line pressure solenoid valve
●TCM detects an improper voltage
drop when it tries to operate the
solenoid valve.X P0745
LINE PRESSURE S/
VL/PRESS SOL/CIRC
Accelerator pedal position (APP) sensor
●TCM receives an excessively low
or high voltage from the sensor.
X P1705
THROTTLE POSI
SENTP SEN/CIRC A/T
Engine speed signal
●TCM does not receive the proper
voltage signal from the ECM.X P0725
ENGINE SPEED SIG
A/T fluid temperature sensor
●TCM receives an excessively low
or high voltage from the sensor.
X P0710
BATT/FLUID TEMP
SENATF TEMP SEN/
CIRC
CAN communication
●When a malfunction is detected in
CAN communication line
X U1000
CAN COMM CIR-
CUIT—
TCM (RAM)
●TCM memory (RAM) is malfunc-
tioning.
——
CONTROL UNIT
(RAM)—
TCM (ROM)
●TCM memory (ROM) is malfunc-
tioning.
——
CONTROL UNIT
(ROM)—
TCM (EEP ROM)
●TCM memory (EEP ROM) is mal-
functioning.
——
CONT UNIT (EEP
ROM)— Detected items
(Screen terms for CONSULT-II, “SELF
DIAGNOSIS” test mode)
Malfunction is detected when...TCM self-diagnosis EURO-OBD (DTC)
Available by O/D OFF
indicator lampAvailable by malfunc-
tion indicator*2,
“ENGINE” on CON-
SULT-II or GST “A/T” “ENGINE”

AT-44
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
DATA MONITOR MODE (A/T)
Item DisplayMover to center Monitor items
Description Remarks TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu
Vehicle speed
sensor 1 (A/T)
(Revolution sen-
sor)VHCL/S SE·A/T
[km/h] or [mph]
X——
●Vehicle speed com-
puted from signal of
revolution sensor is
displayed.When racing engine in N
or P with vehicle station-
ary, CONSULT-II data
may not indicate 0 km/h
(0 mph).
Vehicle speed
sensor 2
(Meter)VHCL/S
SE·MTR
[km/h] or [mph]
X——
●Vehicle speed com-
puted from signal of
vehicle speed sensor is
displayed.Vehicle speed display
may not be accurate
under approx. 10 km/h
(6 mph). It may not indi-
cate 0 km/h (0 mph)
when vehicle is station-
ary.
Accelerator pedal
position sensorTHRTL POS
SEN
[V]X——
●Accelerator pedal posi-
tion sensor signal volt-
age is displayed.
A/T fluid tempera-
ture sensorFLUID TEMP SE
[V]
X——
●A/T fluid temperature
sensor signal voltage is
displayed.
●Signal voltage lowers
as fluid temperature
rises.
Battery voltage BATTERY VOLT
[V]X——
●Source voltage of TCM
is displayed.
Engine speed ENGINE SPEED
[rpm]
X—X
●Engine speed, com-
puted from engine
speed signal, is dis-
played.Engine speed display
may not be accurate
under approx. 800 rpm.
It may not indicate 0 rpm
even when engine is not
running.
Overdrive control
switchOVERDRIVE
SW
[ON/OFF]X——
●ON/OFF state com-
puted from signal of
overdrive control SW is
displayed.
PN position (PNP)
switchPN POSI SW
[ON/OFF]
X——
●ON/OFF state com-
puted from signal of PN
position SW is dis-
played.
R position switch R POSITION SW
[ON/OFF]
X——
●ON/OFF state com-
puted from signal of R
position SW is dis-
played.
D position switch D POSITION SW
[ON/OFF]
X——
●ON/OFF state com-
puted from signal of D
position SW is dis-
played.
2 position switch 2 POSITION SW
[ON/OFF]
X——
●ON/OFF status, com-
puted from signal of 2
position SW, is dis-
played.

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-45
[EURO-OBD]
D
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B
AT
1 position switch 1 POSITION SW
[ON/OFF]
X——●ON/OFF status, com-
puted from signal of 1
position SW, is dis-
played.
ASCD cruise sig-
nalASCD·CRUISE
[ON/OFF]
X——
●Status of ASCD cruise
signal is displayed.
ON... Cruising state
OFF... Normal running
state●This is displayed even
when no ASCD is
mounted.
ASCD OD cut sig-
nalASCD·OD CUT
[ON/OFF]
X——
●Status of ASCD OD
release signal is dis-
played.
ON... OD released
OFF... OD not released●This is displayed even
when no ASCD is
mounted.
Kickdown switch KICKDOWN SW
[ON/OFF]
X——
●ON/OFF status, com-
puted from signal of
kick down SW, is dis-
played.●This is displayed even
when no kick down
switch is equipped.
Closed throttle
position signalCLOSED THL/
SW
[ON/OFF]X——
●ON/OFF status, com-
puted from signal of
closed throttle position
signal, is displayed.●This means closed
throttle position signal
input via CAN com-
munication line.
Wide open throttle
position signalW/O THRL/P-
SW
[ON/OFF]
X——
●ON/OFF status, com-
puted from signal of
wide open throttle posi-
tion signal, is dis-
played.●This means wide
open throttle position
signal input via CAN
communication line.
Gear position GEAR
—— X
●Gear position data
used for computation
by TCM, is displayed.
Selector lever
positionSLCT LVR POSI
—— X
●Selector lever position
data, used for compu-
tation by TCM, is dis-
played.●A specific value used
for control is displayed
if fail-safe is activated
due to error.
Vehicle speed VEHICLE
SPEED
[km/h] or [mph]—— X
●Vehicle speed data,
used for computation
by TCM, is displayed.
Torque converter
slip ratioTC SLIP
RATIO
[0.000]———
●Ratio of engine revolu-
tion to input shaft revo-
lution of torque
converter
Torque converter
slip speedTC SLIP
SPEED
[rpm]———Difference in revolution
between input shaft revo-
lution and input shaft rev-
olution of torque
converterDisplay doesn't indicate
o rpm even if engine is
stopped.
But this isn't malfunc-
tion.
CAN communica-
tionCAN COMM
[OK/NG]—X—
CAN circuit 1CAN CIRC 1
[OK/UNKWN]—X—
CAN circuit 2CAN CIRC 2
[OK/UNKWN]—X— Item DisplayMover to center Monitor items
Description Remarks TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu

AT-46
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
CAN circuit 3CAN CIRC 3
[OK/UNKWN]—X—
CAN circuit 4CAN CIRC 4
[OK/UNKWN]—X—
CAN circuit 5CAN CIRC 5
[OK/UNKWN]—X—
Throttle position THROTTLE
POSI
[/8]—— X
●Throttle position data,
used for computation
by TCM, is displayed.●A specific value used
for control is displayed
if fail-safe is activated
due to error.
Stop lamp switch BRAKE SW
[ON/OFF]
X——
●ON/OFF status is dis-
played.
ON... Brake pedal is
depressed.
OFF... Brake pedal is
released.
Line pressure duty LINE PRES DTY
[%]
—— X
●Control value of line
pressure solenoid
valve, computed by
TCM from each input
signal, is displayed.
Torque converter
clutch solenoid
valve dutyTCC S/V DUTY
[%]
—— X
●Control value of torque
converter clutch sole-
noid valve, computed
by TCM from each
input signal, is dis-
played.
Shift solenoid
valve ASHIFT S/V A
[ON/OFF]
—— X
●Control value of shift
solenoid valve A, com-
puted by TCM from
each input signal, is
displayed.Control value of sole-
noid is displayed even if
solenoid circuit is dis-
connected.
The OFF signal is dis-
played if solenoid circuit
is shorted. Shift solenoid
valve BSHIFT S/V B
[ON/OFF]
—— X
●Control value of shift
solenoid valve B, com-
puted by TCM from
each input signal, is
displayed.
Overrun clutch
solenoid valveOVERRUN/C S/
V
[ON/OFF]
—— X
●Control value of over-
run clutch solenoid
valve computed by
TCM from each input
signal is displayed.
Self-diagnosis dis-
play lamp
(O/D OFF indica-
tor lamp)SELF-D DP LMP
[ON/OFF]
—— X
●Control status of O/D
OFF indicator lamp is
displayed.
Voltage [V] — — — Value measured by voltage probe is displayed.
Frequency [Hz] — — —Value measured by pulse probe is displayed. If mea-
surement is impossible, “#” sign is displayed. “#” sign
is also displayed at the final data value until the mea-
surement result is obtained. Item DisplayMover to center Monitor items
Description Remarks TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-47
[EURO-OBD]
D
E
F
G
H
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K
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MA
B
AT
X: Applicable —: Not applicable : Option
DTC WORK SUPPORT MODE WITH CONSULT-II
CONSULT-II Setting Procedure
1. Turn ignition switch “OFF”.
2. Connect CONSULT-II to data link connector which is located in
left or right side lower dash panel.
3. Turn ignition switch “ON”.
4. Touch “START”.
DUTY-HI — — —
Duty cycle value for measurement probe is dis-
played.
DUTY-LOW — — —
PLS WIDTH-HI — — —
Measured pulse width of measurement probe is dis-
played.
PLS WIDTH-LOW — — —Item DisplayMover to center Monitor items
Description Remarks TCM
Input
signalsCAN
comm
sig-
nalsMain
signalsSelection
from
menu
SCIA0691E
SCIA0692E
SAT586J

AT-48
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
5. Touch “A/T”.
If “A/T” is not indicated, go to GI-34, "
CONSULT-II Data Link
Connector (DLC) Circuit" .
6. Touch “DTC WORK SUPPORT”.
7. Touch select item menu (1ST, 2ND, etc.).
8. Touch “START”.
9. Perform driving test according to “DTC CONFIRMATION PRO-
CEDURE” in “TROUBLE DIAGNOSIS FOR DTC”.
SAT014K
SAT971J
SAT018K
SAT589J
SAT019K

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-49
[EURO-OBD]
D
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B
AT
●When testing conditions are satisfied, CONSULT-II screen
changes from “OUT OF CONDITION” to “TESTING”.
10. Stop vehicle. If “NG” appears on the screen, malfunction may
exist. Go to “DIAGNOSTIC PROCEDURE”.
11. Perform test drive to check gear shift feeling in accordance with
instructions displayed.
12. Touch “YES” or “NO”.
SAT591J
SAT592J
SAT593J
SAT594J
SAT595J

AT-50
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
13. CONSULT-II procedure ended.
If “NG” appears on the screen, a malfunction may exist. Go to “DIAGNOSTIC PROCEDURE”.
DTC WORK SUPPORT MODE
Diagnostic Procedure Without CONSULT-IIECS004QN
EURO-OBD SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-104, "Generic Scan Tool (GST) Function" (QR25DE) or EC-836, "Generic Scan Tool (GST) Func-
tion" (QR20DE).
EURO-OBD SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
Refer to EC-58, "Malfunction Indicator (MI)" (QR25DE) or EC-790, "Malfunction Indicator (MI)" (QR20DE).
SAT596J
SAT593J
DTC work support item Description Check items (Possible cause)
1ST GR FNCTN P0731Following items for “A/T 1st gear function (P0731)” can be con-
firmed.
●Self-diagnosis status (whether the diagnosis is being conducted
or not)
●Self-diagnosis result (OK or NG)
●Shift solenoid valve A
●Shift solenoid valve B
●Each clutch
●Hydraulic control circuit
2ND GR FNCTN P0732Following items for “A/T 2nd gear function (P0732)” can be con-
firmed.
●Self-diagnosis status (whether the diagnosis is being conducted
or not)
●Self-diagnosis result (OK or NG)
●Shift solenoid valve B
●Each clutch
●Hydraulic control circuit
3RD GR FNCTN P0733Following items for “A/T 3rd gear function (P0733)” can be con-
firmed.
●Self-diagnosis status (whether the diagnosis is being conducted
or not)
●Self-diagnosis result (OK or NG)
●Shift solenoid valve A
●Each clutch
●Hydraulic control circuit
4TH GR FNCTN P0734Following items for “A/T 4th gear function (P0734)” can be con-
firmed.
●Self-diagnosis status (whether the diagnosis is being conducted
or not)
●Self-diagnosis result (OK or NG)
●Shift solenoid valve A
●Shift solenoid valve B
●Overrun clutch solenoid valve
●Line pressure solenoid valve
●Each clutch
●Hydraulic control circuit

ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
AT-51
[EURO-OBD]
D
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B
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TCM SELF-DIAGNOSTIC PROCEDURE (NO TOOLS)
1.CHECK O/D OFF INDICATOR LAMP
1. Start engine and warm it up to normal operating temperature.
2. Turn ignition switch to “OFF” position.
Wait 5 seconds.
3. Turn ignition switch to “ACC” position.
4. Set overdrive control switch to “ON” position.
5. Move selector lever to “P” position.
6. Turn ignition switch to “ON” position. (Do not start engine.)
7. Does O/D OFF indicator lamp come on for about 2 seconds?
Ye s o r N o
Ye s > > G O T O 2 .
No >> Go to AT- 2 0 9 , "
O/D OFF Indicator Lamp Does Not
Come On" .
2.JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch to “OFF” position.
2. Turn ignition switch to “ACC” position.
3. Move selector lever to “D” position.
4. Set overdrive control switch to “OFF” position.
5. Turn ignition switch to “ON” position. (Do not start engine.)
–Wait more than 2 seconds after turning ignition switch “ON”.
>> GO TO 3.
SAT774B
SCIA0693E
SAT653E

AT-52
[EURO-OBD]
ON BOARD DIAGNOSTIC SYSTEM DESCRIPTION
3. JUDGEMENT PROCEDURE STEP 2
1. Move selector lever to “2” position.
2. Set overdrive control switch to “ON” position.
>> GO TO 4.
4. JUDGEMENT PROCEDURE STEP 3
1. Move selector lever to “1” position.
2. Set overdrive control switch to “OFF” position.
>> GO TO 5.
5. JUDGEMENT PROCEDURE STEP 4
1. Depress accelerator pedal fully and release it.
>> GO TO 6.
6. CHECK SELF-DIAGNOSIS CODE
Check O/D OFF indicator lamp. Refer to AT- 5 3 , "
JUDGEMENT OF
SELF-DIAGNOSIS CODE" .
>>DIAGNOSIS END
SAT780B
SAT781B
SAT981F
SCIA0693E