oil NISSAN X-TRAIL 2003 Electronic Owner's Manual

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 P0725 ENGINE SPEED SIGNAL
AT-149
[EURO-OBD]
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Diagnostic ProcedureECS0 04 R9
1.CHECK DTC WITH ECM
Perform diagnostic test mode II (self- diagnostic results) for engine control. Check ignition signal circuit condi-
tion.
OK or NG
OK (With CONSULT-II)>>GOTO2
OK (Without CONSULT-II)>>GOTO3
NG >> Check ignition signal circuit for engine control. Refer toEC-334, "
IGNITION SIGNAL",“IGNITION
SIGNAL”.
2.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 “ENGINE SPEED”.
Check engine speed changes according to throttle position.
OK or NG
OK >> GOTO4
NG >> Check the following items:
lHarness for short or open between TCM and ECM
lResistor and ignition coil Refer toEC-334, "IGNITION
SIGNAL", “IGNITION SIGNAL”.
3.CHECK INPUT SIGNAL (WITHOUT CONSULT-II)
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM terminal 39 and ground.
OK or NG
OK >> GOTO4
NG >> Check the following items:
lHarness for short or open between TCM and ECM
lResistor and ignition coilEC-334, "IGNITION SIG-
NAL", “IGNITION SIGNAL”.
SAT014K
SAT645J
Voltage (Idle speed) : Refer toEC-30, "Idle Speed and
Ignition Timing Check","Idle
Speed and Ignition Timing".
SCIA0740E

AT-172
[EURO-OBD]
DTC P0734 A/T 4TH GEAR FUNCTION
DTC P0734 A/T 4TH GEAR FUNCTION
PFP:31940
DescriptionECS0 04 RM
lThis is an OBD-II self-diagnostic item and not available in TCM self-diagnosis.
lThis malfunction will not be detected while the O/D OFF indicator lamp is indicating another self-diagnosis
malfunction.
lThis malfunction is detected when the A/T does not shift into fourth gear position or the torque converter
clutch does not lock up as instructed by the TCM. This is not caused by electrical malfunction (circuits
open or shorted) but by mechanical malfunction such as control valve sticking, improper solenoid valve
operation, malfunctioning oil pump or torque converter clutch, etc.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSTIC LOGIC
This diagnosis monitors actual gear position by checking the torque converter slip ratio calculated by TCM as
follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from revolution sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Monitor item Condition Specification
Line pressure solenoid valve dutySmall throttle opening
(Low line pressure)
¯
Large throttle opening
(High line pressure)Approximately 24%
¯
Approximately 95%
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
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
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

AT-184
[EURO-OBD]
DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS004RS
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector in engine compartment.
3. Check resistance between terminal 5 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove oil pan. Refer toAT-454, "
ON-VEHICLE
SERVICE".
2. Check the following items:
–Torque converter clutch solenoid valve
Refer to “Component Inspection”,AT-185, "
Compo-
nent Inspection".
–Harness of terminal cord assembly for short or open
2.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Disconnect TCM harness connector.
3. Check continuity between terminal 5 and TCM harness connector terminal 3.
If OK, check harness for short to ground and short to power.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 3
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
3.CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure,AT- 1 8 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. Resistance : 5 - 20W
SCIA0731E
Continuity should exist.
SCIA0732E

AT-186
[EURO-OBD]
DTC P0745 LINE PRESSURE SOLENOID VALVE
DTC P0745 LINE PRESSURE SOLENOID VALVE
PFP:31940
DescriptionECS004RU
The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving condition in response to a signal sent
from the TCM.
The line pressure duty cycle value is not consistent when the
closed throttle position switch is “ON”. To confirm the line
pressure duty cycle at low pressure, the accelerator (throttle)
should be open until the closed throttle position switch is
“OFF”.
CONSULT-II REFERENCE VALUE IN DATA MONITOR MODE
Remarks: Specification data are reference values.
NOTE:
The line pressure duty cycle value is not consistent when the closed throttle position switch is “ON”. To confirm the line pressure duty
cycle at low pressure, the accelerator (throttle) should be open until the closed throttle position switch is “OFF”.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SCIA0735E
Monitor item Condition Specification
Line pressure solenoid valve dutySmall throttle opening
(Low line pressure)
¯
Large throttle opening
(High line pressure)Approximately 24%
¯
Approximately 95%
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
1R/WLine pressure
solenoid valveWhen releasing accelerator pedal
after warming up engine.1.5 - 2.5V
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
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: L/PRESS SOL/CIRC
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
lHarness or connectors
(The solenoid circuit is open or shorted.)
lLine pressure solenoid valve
: P0745

DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
AT-219
[EURO-OBD]
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Diagnostic ProcedureECS004SK
1.CHECK TCM POWER SOURCE
1. Turn ignition switch to “ON” position.
(Do not start engine.)
2. Check voltage between TCM terminals 10, 19, 28 and ground.
3. Turn ignition switch to “OFF” position.
4. Check voltage between TCM terminal 28 and ground.
OK or NG
OK >> GO TO 2
NG >> Check the following items:
lHarness for short or open between ignition switch and
TCM (Main harness)
lIgnition switch and fuse
Refer toPG-2, "
POWER SUPPLY ROUTING".
2.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)>>GOTO3
OK (Without CONSULT-II)>>GOTO4
NG >> 1. Remove oil pan.
2. Check the following items:
–A/T fluid temperature sensor
Refer to “Component Inspection”,AT-221, "
Component Inspection".
–Harness of terminal cord assembly for short or open Voltage:Batteryvoltage
Voltage:Batteryvoltage
SCIA0736E
Resistance
:Cold [20°C(68°F)]
Approximately 2.5 kW
SCIA0737E

AT-236
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
4.CHECK A/T FLUID CONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO5
NG >> 1. Disassemble A/T.
2. Check the following items:
–Forwardclutchassembly
–Overrunclutchassembly
–Reverse clutch assembly
5.CHECK SYMPTOM
Check again.
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.
5. Large Shock. “N”®“R” PositionECS004SY
SYMPTOM:
There is large shock when changing from “N” to “R” position.
1.CHECK SELF-DIAGNOSTIC RESULTS
Does self-diagnosis show damage to A/T fluid temperature sensor,
line pressure solenoid valve or throttle position sensor circuit?
Ye s o r N o
Ye s > >lCheck damaged circuit. Refer to the following items.
Except for Euro-OBD
–LINE PRESSURE SOLENOID VALVE:AT-436, "LINE
PRESSURE SOLENOID VALVE"
–THROTTLE POSITION SENSOR:AT-401, "ACCELE
RATOR PEDAL POSITION (APP) SENSOR"
–BATT/FLUID TEMP SEN (A/T FLUID TEMP SEN-
SOR CIRCUIT AND TCM POWER SOURCE:AT-
426, "BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)"
Euro-OBD
–LINE PRESSURE SOLENOID VALVE:AT-186, "DTC P0745 LINE PRESSURE SOLENOID
VA LV E"
–THROTTLE POSITION SENSOR:AT-203, "DTC P1705 ACCELERATOR PEDAL POSITION
(APP) SENSOR"
–BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER SOURCE:
AT - 2 1 6 , "
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)"
No >> GOTO2
SAT171B
SCIA0769E

AT-238
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
2.CHECK STALL TEST
Check stall revolution with selector lever in “1” and “R” positions.
Refer toAT-65, "
Stall Te st".
OK or NG
OK >> GOTO3
OK in “1” position, NG in “R” position>>1.Remove control valve
assembly. Refer to “ON-VEHICLE SERVICE”,AT-
453, "Installation".
2. Check the following items:
–Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve (AT-436, "LINE PRES-
SURE SOLENOID VALVE": Except for Euro-OBDAT-186, "DTC P0745 LINE PRESSURE
SOLENOID VALVE": Euro-OBD)
3. Disassemble A/T.
4. Check the following items:
–Oil pump assembly
–Torque converter
–Reverse clutch assembly
–High clutch assembly
–Low & reverse brake assembly
–Low one-way clutch
NG in both “1” and “R” positions>>GOTO6
3.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “R” position. Refer
to “Line Pressure Test”,AT-68, "
Line Pressure Test".
OK or NG
OK >> GOTO4
NG >> 1. Remove control valve assembly. Refer to “ON-VEHI-
CLE SERVICE”,AT-453, "
Installation".
2. Check the following items:
–Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve (AT-436, "LINE PRES-
SURE SOLENOID VALVE": Except for Euro-OBD/AT-186, "DTC P0745 LINE PRESSURE
SOLENOID VALVE": Euro-OBD)
3. Disassemble A/T.
4. Check the following item:
–Oil pump assembly
SAT493G
SAT494G

TROUBLE DIAGNOSES FOR SYMPTOMS
AT-239
[EURO-OBD]
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4.CHECKA/TFLUIDCONDITION
1. Remove oil pan.
2. Check A/T fluid condition.
OK or NG
OK >> GOTO5
NG >> GOTO6
5.CHECK SYMPTOM
Check again.
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.
6.DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to “ON-VEHICLE SERVICE”,AT-453, "
Installation".
2. Check the following items:
–Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve (AT- 4 3 6 , "LINE PRESSURE SOLENOID VALVE": Except for Euro-OBD/AT-
186, "DTC P0745 LINE PRESSURE SOLENOID VALVE":Euro-OBD)
3. Disassemble A/T.
4. Check the following items:
–Oil pump assembly
–Torque converter
–Reverse clutch assembly
–High clutch assembly
–Low & reverse brake assembly
–Low one-way clutch
OK or NG
OK >> GOTO5
NG >> Repair or replace damaged parts.
SAT171B

AT-240
[EURO-OBD]
TROUBLE DIAGNOSES FOR SYMPTOMS
7. Vehicle Does Not Creep Forward In “D”, “2” Or “1” Position
ECS004T0
SYMPTOM:
Vehicle does not creep forward when selecting “D”, “2” or “1” position.
1.CHECK A/T FLUID LEVEL
Check A/T fluid level again.
OK or NG
OK >> GOTO2
NG >> Refill ATF.
2.CHECK STALL TEST
Check stall revolution with selector lever in “D” position. Refer to
“Stall Test”,AT - 6 5 , "
Stall Test".
OK or NG
OK >> GOTO3
NG >> GOTO6
3.CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer
to “Line Pressure Test ”,AT-68, "
Line Pressure Test".
OK or NG
OK >> GOTO4
NG >> 1. Remove control valve assembly. Refer toAT-453,
"Installation".
2. Check the following items:
–Valves to control line pressure (Pressure regulator
valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve (AT-436, "LINE PRES-
SURE SOLENOID VALVE": Except for Euro-OBD/AT-186, "DTC P0745 LINE PRESSURE
SOLENOID VALVE": Euro-OBD)
3. Disassemble A/T.
4. Check the following item:
–Oil pump assembly
SAT638A
SAT493G
SAT494G