check engine NISSAN X-TRAIL 2003 Electronic Owner's Guide

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-125
[EURO-OBD]
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TCM Terminals and Reference ValueECS004QV
PREPARATION
lMeasure voltage between each terminal and terminal 25 or 48
by following “TCM INSPECTION TABLE”.
A/T does not shift to “D4”whendriv-
ing with overdrive control switch
“ON”.OFF vehicle9. Brake bandAT-530,
"Band
Servo Pis-
ton Assem-
bly"
¬
10. Overrun clutchAT-512,
"Forward
and Overrun
Clutches"
¬
Engine is stopped at “R”, “D”, “2”
and “1” positions.ON vehicle1. Fluid levelAT-64,
"FLUID
LEVEL
CHECK"
¬
2. Torque converter clutch solenoid valveAT-421,
"TORQUE
CON-
VERTER
CLUTCH
SOLENOID
VA LV E"
AT-181,
"DTC P0740
TORQUE
CON-
VERTER
CLUTCH
SOLENOID
VA LV E"
3. Shift solenoid valve AAT-406,"SHIFT
SOLENOID
VA LV E A"
AT-193,
"DTC P0750
SHIFT
SOLENOID
VA LV E A"
4. Shift solenoid valve BAT-4 11 ,"SHIFT
SOLENOID
VA LV E B"
AT-198,
"DTC P0755
SHIFT
SOLENOID
VA LV E B"
5. Control valve assemblyAT-454,
"Control
Va lv e
Assembly
and Accu-
mulators"
¬ Symptom Condition Diagnostic ItemReference Page
Except for
Euro-OBDEURO-OBD
SAT216J

AT-126
[EURO-OBD]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
SCIA0712E
Te r m i -
nal No.Wire color Item ConditionJudgementstan-
dard(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.0V
2P/BLine pressure
solenoid valve
(with dropping
resistor)When releasing accelerator pedal
after warming up engine.5 - 14V
When depressing accelerator pedal
fully after warming up engine.0V
3GY/RTorque converter
clutch solenoid
valveWhen A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
5*2 B/W CAN(H) — — —
6*2 L/R CAN(L) — — —
10 BR/W Power source
orWhen turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.0V
11 L / WShift solenoid
valve AWhen shift solenoid valve A oper-
ates.
(When driving in “D
1”or“D4”.)Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2”or“D3”.)0V
12 L/YShift solenoid
valve BWhen shift solenoid valve B oper-
ates.
(When driving in “D
1”or“D2”.)Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3”or“D4”.)0V
13 R/LO/D OFF indica-
tor lampWhen setting overdrive control or A/
T check switch in “OFF” position.0V
When setting overdrive control or A/
T check switch in “ON” position.Battery voltage
19 BR/W Power source
orSame as No. 10

DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
AT-133
[EURO-OBD]
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Diagnostic ProcedureECS004QY
1.CHECK PNP SWITCH CIRCUIT (WITH CONSULT-II)
With CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out “P/N”, “R”, “D”, “2” and “1” position switches moving
selector lever to each position.
Check the signal of the selector lever position is indicated prop-
erly.
OK or NG
OK >> GO TO 3
NG >> Check the following items:
lPNP switch
Refer to “Component Inspection”,AT-135, "
Compo-
nent Inspection".
lHarness for short or open between ignition switch and
PNP switch (Main harness)
lHarness for short or open between PNP switch and
TCM (Main harness)
lIgnition switch and fuse
Refer toPG-2, "
POWER SUPPLY ROUTING", “POWER SUPPLY ROUTING”.
lDiode (P, N positions)
SAT014K
SAT701J

AT-134
[EURO-OBD]
DTC P0705 PARK/NEUTRAL POSITION (PNP) SWITCH
2.CHECK PNP SWITCH CIRCUIT (WITHOUT CONSULT-II)
Without CONSULT-II
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM terminals 26, 27, 34, 35, 36 and
ground while moving selector lever through each position.
OK or NG
OK >> GO TO 3
NG >> Check the following items:
lPNP switch
Refer to “Component Inspection”,AT - 1 3 5 , "
Component Inspection".
lHarness for short or open between ignition switch and PNP switch (Main harness)
lHarness for short or open between PNP switch and TCM (Main harness)
lIgnition switch and fuse
Refer toPG-2, "
POWER SUPPLY ROUTING", “POWER SUPPLY ROUTING”.
lDiode (P, N positions)
3.CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure,AT- 1 3 1 , "
DIAGNOSTIC TROUBLE CODE
(DTC) CONFIRMATION PROCEDURE".
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. Vo l ta g e :
B : Battery voltage
0:0V
MTBL0136
SCIA0753E

DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
AT-139
[EURO-OBD]
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Diagnostic ProcedureECS0 04 R2
1.INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >>GOTO2
No >> GO TO 3
2.CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out the value of “FLUID TEMP SE”.
OK or NG
OK >> GO TO 4
NG >> GO TO 5
SAT014K
Vo l ta g e :
Cold [20°C(68°F)]®Hot [80°C(176°F)]
Approximately 1.5V®0.5V
SAT614J

AT-140
[EURO-OBD]
DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
3.CHECK INPUT SIGNAL OF A/T FLUID TEMPERATURE SENSOR (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 47 and ground while warming up A/T.
3. Turn ignition switch to “OFF” position.
4. Disconnect TCM harness connector.
5. Check continuity between terminal 42 and ground.
If OK, check harness for short to ground and short to power.
OK or NG
OK >> GOTO4
NG >> GOTO5
4.CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure,AT- 1 3 7 , "
DIAGNOSTIC TROUBLE CODE
(DTC) CONFIRMATION PROCEDURE".
OK or NG
OK >>INSPECTION END
NG >> 1. Perform TCM input/output signal inspection.
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector. Vo l ta g e :
Cold [20°C(68°F)]®Hot [80°C (176°F)]
Approximately 1.5V®0.5V
SCIA0738E
Continuity should exist.
SCIA0739E

DTC P0710 A/T FLUID TEMPERATURE SENSOR CIRCUIT
AT-141
[EURO-OBD]
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5.CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminals 6 and 7 when A/T is cold.
4. Reinstall any part removed.
OK or NG
OK (With CONSULT-II)>>GOTO2
OK (Without CONSULT-II)>>GOTO3
NG >> 1. Remove oil pan.
2. Check the following items:
–A/T fluid temperature sensor
Refer to “Component Inspection”,AT-141, "
Component Inspection".
–Harness of terminal cord assembly for short or open
Component InspectionECS0 04 R3
A/T FLUID TEMPERATURE SENSOR
lFor removal, refer toAT-453, "Installation".
lCheck resistance between two terminals while changing temper-
ature as shown at left.Resistance :
Cold [20°C(68°F)]
Approximately 2.5 kW
SCIA0737E
Temperature°C(°F) Resistance
20 (68) Approximately 2.5 kW
80 (176) Approximately 0.3 kW
SAT298F

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-143
[EURO-OBD]
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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
CAUTION:
lAlways drive vehicle at a safe speed.
lBe careful not to rev engine into the red zone on the
tachometer.
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting the
next test.
After the repair, perform the following procedure to confirm the mal-
function is eliminated.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
“A/T” with CONSULT-II.
2. Drive vehicle and check for an increase of “VHCL/S SE·MTR”
value increase.
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-145, "
Diagnostic Procedure".
If the check result is OK, go to following step.
3. Select “DATA MONITOR” mode for “ENGINE” with CONSULT-II.
4. Start engine and maintain the following conditions for at least 5
consecutive seconds.
VHCL SPEED SE: 30 km/h (19 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD “ON”)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
If the check result is NG, go to “DIAGNOSTIC PROCEDURE”,
AT-145, "
Diagnostic Procedure".
If the check result is OK, go to following step.
5. Maintain the following conditions for at least 5 consecutive sec-
onds.
CMPS·RPM (REF): 3,500 rpm or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD “ON”)
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
With GST
Follow the procedure “With CONSULT-II”.
SAT014K
SAT971J
SAT014K
SAT020K

DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)
AT-145
[EURO-OBD]
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Diagnostic ProcedureECS0 04 R6
1.CHECK INPUT SIGNAL (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for
“A/T” with CONSULT-II.
3. Read out the value of “VHCL/S SE·A/T” while driving.
Check the value changes according to driving speed.
OK or NG
OK >> GOTO3
NG >> GOTO2
2.CHECK REVOLUTION SENSOR (WITH CONSULT-II)
With CONSULT-II
1. Start engine.
–Harness for short or open between TCM, ECM and revolution sensor (Main harness)
OK or NG
OK >> GOTO3
NG >> Repair or replace damaged parts.
SAT014K
SAT614J
MTBL0581

DTC P0725 ENGINE SPEED SIGNAL
AT-147
[EURO-OBD]
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DTC P0725 ENGINE SPEED SIGNALPFP:24825
DescriptionECS0 04 R7
The engine speed signal is sent from the ECM to the TCM.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DIAGNOSTIC TROUBLE CODE CONFIRMATION PROCE-
DURE” has been previously conducted, always turn ignition
switch “OFF” and wait at least 5 seconds before conducting the
next test.
After the repair, perform the following procedure to confirm the mal-
function is eliminated.
With CONSULT-II
1. Turn ignition switch “ON” and select “DATA MONITOR” mode for
“ENGINE” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 10
consecutive seconds.
VHCL SPEED SE: 10 km/h (6 MPH) or more
THRTL POS SEN: More than 1.2V
Selector lever: D position (OD “ON”)
With GST
Follow the procedure “With CONSULT-II”.
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
39 L/OREngine speed sig-
nalandRefer toEC-79, "
ECM INSPECTION TABLE",
“ECM INSPECTION TABLE”.—
Diagnostic trouble code Malfunction is detected when ... Check item (Possible cause)
: ENGINE SPEED SIG
TCM does not receive the proper voltage
signal from ECM.
lHarness or connectors
(The sensor circuit is open or shorted.)
: P0725
SAT014K
SAT020K