Page 190 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual 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 ass NISSAN X-TRAIL 2003 Electronic Repair Manual 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 ass](/manual-img/5/57402/w960_57402-189.png)
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
Page 196 of 3066
AT-190
[EURO-OBD]
DTC P0745 LINE PRESSURE SOLENOID VALVE
3.CHECK POWER SOURCE CIRCUIT
1. Turn ignition switch to “OFF” position.
2. Check resistance between terminal 4 and TCM harness connector terminal 1.
If OK, check harness for short to ground and short to power.
3. Reinstall any part removed.
OK or NG
OK >> GO TO 4
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
4.CHECK DTC
Perform Diagnostic Trouble Code (DTC) confirmation procedure,AT- 1 8 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. Resistance : Approx. 0W
SCIA0743E
Page 199 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0750 SHIFT SOLENOID VALVE A
AT-193
[EURO-OBD]
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DTC P0750 SHIFT SOLENOID VALVE APFP:31940
DescriptionECS004RY
Shift solenoid valves A and B are turned “ON” or “OFF NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0750 SHIFT SOLENOID VALVE A
AT-193
[EURO-OBD]
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DTC P0750 SHIFT SOLENOID VALVE APFP:31940
DescriptionECS004RY
Shift solenoid valves A and B are turned “ON” or “OFF](/manual-img/5/57402/w960_57402-198.png)
DTC P0750 SHIFT SOLENOID VALVE A
AT-193
[EURO-OBD]
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DTC P0750 SHIFT SOLENOID VALVE APFP:31940
DescriptionECS004RY
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response to signals sent from the PNP switch, vehicle speed and
throttle position sensors. Gears will then be shifted to the optimum
position.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SCIA0718E
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)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
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
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: SFT SOL A/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.)
lShift solenoid valve A
: P0750
Page 202 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-196
[EURO-OBD]
DTC P0750 SHIFT SOLENOID VALVE A
Diagnostic Procedure
ECS004S0
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector NISSAN X-TRAIL 2003 Electronic Repair Manual AT-196
[EURO-OBD]
DTC P0750 SHIFT SOLENOID VALVE A
Diagnostic Procedure
ECS004S0
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector](/manual-img/5/57402/w960_57402-201.png)
AT-196
[EURO-OBD]
DTC P0750 SHIFT SOLENOID VALVE A
Diagnostic Procedure
ECS004S0
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 2 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer toAT-454,
"REMOVAL".
2. Check the following items:
–Shift solenoid valve A
Refer to “Component Inspection”,AT-197, "
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 2 and TCM harness connector terminal 11.
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 9 4 , "
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 : 20 - 30W
SCIA0719E
Continuity should exist.
SCIA0720E
Page 204 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-198
[EURO-OBD]
DTC P0755 SHIFT SOLENOID VALVE B
DTC P0755 SHIFT SOLENOID VALVE B
PFP:31940
DescriptionECS004S2
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response NISSAN X-TRAIL 2003 Electronic Repair Manual AT-198
[EURO-OBD]
DTC P0755 SHIFT SOLENOID VALVE B
DTC P0755 SHIFT SOLENOID VALVE B
PFP:31940
DescriptionECS004S2
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response](/manual-img/5/57402/w960_57402-203.png)
AT-198
[EURO-OBD]
DTC P0755 SHIFT SOLENOID VALVE B
DTC P0755 SHIFT SOLENOID VALVE B
PFP:31940
DescriptionECS004S2
Shift solenoid valves A and B are turned “ON” or “OFF” by the TCM
in response to signals sent from the PNP switch, vehicle speed and
throttle position sensors. Gears will then be shifted to the optimum
position.
TCM TERMINALS AND REFERENCE VALUE
Remarks: Specification data are reference values.
ON BOARD DIAGNOSIS LOGIC
SCIA0718E
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)
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
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
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: SFT SOL B/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.)
lShift solenoid valve B
: P0755
Page 207 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0755 SHIFT SOLENOID VALVE B
AT-201
[EURO-OBD]
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AT
Diagnostic ProcedureECS004S4
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0755 SHIFT SOLENOID VALVE B
AT-201
[EURO-OBD]
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Diagnostic ProcedureECS004S4
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal](/manual-img/5/57402/w960_57402-206.png)
DTC P0755 SHIFT SOLENOID VALVE B
AT-201
[EURO-OBD]
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AT
Diagnostic ProcedureECS004S4
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 1 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer toAT-454,
"REMOVAL".
2. Check the following items:
–Shift solenoid valve B
Refer to “Component Inspection”,AT-202, "
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 12 and TCM harness connector terminal 1.
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-199, "
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
SCIA0723E
Continuity should exist.
SCIA0724E
Page 209 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR
AT-203
[EURO-OBD]
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AT
DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSORPFP:22620
DescriptionECS004S6
lAccelerator pedal position NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR
AT-203
[EURO-OBD]
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DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSORPFP:22620
DescriptionECS004S6
lAccelerator pedal position](/manual-img/5/57402/w960_57402-208.png)
DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR
AT-203
[EURO-OBD]
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DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSORPFP:22620
DescriptionECS004S6
lAccelerator pedal position (APP) sensor throttle position sensor
Electric throttle control actuator consists of throttle control motor,
accelration pedal position sensor, throttle position sensor, etc. The
actuator sends a signal to the TCM.
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 DIAGNOSIS LOGIC
PBIB0498E
Monitor item Condition Specification
Throttle position sensor
(Accelerator pedal position (APP) sensor)Fully-closed throttle Approximately 0.5V
Fully-open throttle Approximately 4V
Te r m i -
nal No.Wire color Item ConditionJudgement standard
(Approx.)
32 RThrottle position
sensor
(Power source)orWhen turning ignition switch "ON" 4.5 - 5.5V
When turning ignition switch "OFF" 0V
41 W/RThrottle position
sensorWhen depressing accelerator pedal
slowly after warming up engine.
(Voltage rises gradually in response
to throttle position.)Fully-closed throttle:
0.5V
Fully-open throttle:
4V
42 BGround
(Throttle position
sensor)———
Diagnostic trouble code Malfunction is detected when ... Check items (Possible cause)
: TP SEN/CIRC A/T
TCM receives an excessively low or high
voltage from the sensor.
lHarness or connectors
(The sensor circuit is open or shorted.)
lAccelerator pedal position (APP) sensor
Throttle position sensor : P1705
Page 212 of 3066
AT-206
[EURO-OBD]
DTC P1705 ACCELERATOR PEDAL POSITION (APP) SENSOR
Diagnostic Procedure
ECS004S8
1.CHECK DTC WITH ECM
Perform diagnostic test mode II (self-diagnostic results) for engine control.
Refer to EC-´´, “Malfunction Indicator Lamp (MIL)”.
OK or NG
OK (With CONSULT-II)>>GO TO 2
OK (Without CONSULT-II)>>GO TO 3
NG >> Check throttle position sensor circuit for engine control. Refer toEC-154, "
DTC P0121 APP SEN-
SOR".
2.CHECK INPUT SIGNAL (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 the value of “THRTL POS SEN”.
OK or NG
OK >> GO TO 4
NG >> Check harness for short or open between ECM and
TCM regarding throttle position sensor circuit. (Main
harness)
SAT014K
Vo l ta g e :
Fully-closed throttle : Approximately 0.5V
Fully-open throttle : Approximately 4V
SAT614J