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![NISSAN X-TRAIL 2003 Electronic Repair Manual OVERRUN CLUTCH SOLENOID VALVE
AT-419
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Diagnostic ProcedureECS0 04 U2
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord NISSAN X-TRAIL 2003 Electronic Repair Manual OVERRUN CLUTCH SOLENOID VALVE
AT-419
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Diagnostic ProcedureECS0 04 U2
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord](/manual-img/5/57402/w960_57402-424.png)
OVERRUN CLUTCH SOLENOID VALVE
AT-419
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Diagnostic ProcedureECS0 04 U2
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 3 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer to $$$$$.
2. Check the following items:
Overrun clutch solenoid valve
Refer to “Component Inspection”,AT-420, "
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 3 and TCM harness connector terminal 20.
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 Self-diagnosis Code confirmation procedure,AT-416, "
OVERRUN CLUTCH SOLENOID VALVE".
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
SCIA0727E
Continuity should exist.
SCIA0728E
Page 426 of 3066
AT-420
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OVERRUNCLUTCHSOLENOIDVALVE
Component Inspection
ECS004U3
OVERRUN CLUTCH SOLENOID VALVE
lFor removal, refer toAT-453, "Installation".
Resistance Check
lCheck resistance between two terminals.
Operation Check
lCheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
SCIA0729E
Solenoid valve Terminal No.Resistance
(Approx.)
Overrun clutch
solenoid valve3 Ground 20 - 30W
SCIA0730E
Page 427 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-421
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TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS0 04 U4
The torque converter clutch solenoid valve is activa NISSAN X-TRAIL 2003 Electronic Repair Manual TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-421
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TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS0 04 U4
The torque converter clutch solenoid valve is activa](/manual-img/5/57402/w960_57402-426.png)
TORQUE CONVERTER CLUTCH SOLENOID VALVE
AT-421
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TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionECS0 04 U4
The torque converter clutch solenoid valve is activated, with the gear
in “D
4”, by the TCM in response to signals sent from the vehicle
speed and throttle position sensors. Lock-up piston operation will
then be controlled.
Lock-up operation, however, is prohibited when A/T fluid tempera-
ture is too low.
When the accelerator pedal is depressed (less than 2/8) in lock-up
condition, the engine speed should not change abruptly. If there is a
big jump in engine speed, there is no lock-up.
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
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.
With CONSULT-II
1. Start engine.
2. Select “SELF-DIAG RESULTS” mode for A/T with CONSULT-II.
3. DrivevehicleinD
1®D2®D3®D4®D4lock-up position.
SCIA0718E
Monitor item Condition Specification
Torque converter clutch solenoid valve
dutyLock-up “OFF”
¯
Lock-up “ON”Approximately 4%
¯
Approximately 94%
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
3GY/RTorque converter
clutch solenoid
valveWhen A/T performs lock-up. 8 - 15V
When A/T does not perform lock-up. 0V
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: T/C CLUTCH SOL/V
TCM detects an improper voltage drop
when it tries to operate the solenoid valve.
lHarness or connectors
(The solenoid circuit is open or shorted.)
lT/C clutch solenoid valve
: 7th judgement flicker
SAT014K
Page 428 of 3066
AT-422
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
Without CONSULT-II
1. Start engine.
2. Drive vehicle in D
1®D2®D3®D4®D4lock-up position.
3. Perform self-diagnosis.
Refer to “SELF-DIAGNOSTIC PROCEDURE (Without CON-
SULT-II)”,AT-421, "
TORQUE CONVERTER CLUTCH SOLE-
NOID VALVE".
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
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Wiring Diagram — AT — TCVECS0 04 U5
TCWA0043E
Page 430 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-424
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS004U6
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-424
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS004U6
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord assembly connector](/manual-img/5/57402/w960_57402-429.png)
AT-424
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
Diagnostic Procedure
ECS004U6
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- 4 5 3 , "
Installation".
2. Check the following items:
Torque converter clutch solenoid valve
Refer to “Component Inspection”,AT-425, "
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 Self-diagnosis Code confirmation procedure,AT - 4 2 1 , "
TORQUE CONVERTER CLUTCH SOLENOID
VA LV E".
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.
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TORQUE CONVERTER CLUTCH SOLENOID VALVE
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Component InspectionECS0 04 U7
TORQUE CONVERTER CLUTCH SOLENOID VALVE
lFor removal, refer toAT-453, "Installation".
Resistance Check
lCheck resistance between two terminals.
Operation Check
lCheck solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground.
SCIA0733E
Solenoid valve Terminal No.Resistance
(Approx.)
Torque converter
clutch solenoid
valve5Ground5-20W
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Page 432 of 3066
![NISSAN X-TRAIL 2003 Electronic Repair Manual AT-426
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)
PFP:31940
DescriptionECS004U8
The A/T f NISSAN X-TRAIL 2003 Electronic Repair Manual AT-426
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)
PFP:31940
DescriptionECS004U8
The A/T f](/manual-img/5/57402/w960_57402-431.png)
AT-426
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BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POW-
ER SOURCE)
BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM POWER
SOURCE)
PFP:31940
DescriptionECS004U8
The A/T fluid temperature sensor detects the A/T fluid temperature
and 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.
SCIA0735E
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Monitor item Condition Specification (Approximately)
A/T fluid temperature sensorCold [20°C(68°F)]
¯
Hot [80°C(176°F)]1.5V
¯
0.5V2.5 kW
¯
0.3 kW
Te r m i -
nal No.Wire color Item ConditionJudgement stan-
dard
(Approx.)
10 BR/W Power source
orWhen turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.0V
19 BR/W Power source Same as No. 10
28 R/BPower source
(Memory back-up)
orWhen turning ignition switch to
“OFF”.Battery voltage
When turning ignition switch to “ON”. Battery voltage
42 BGround
(A/T fluid tempera-
ture sensor)———
47 BRA/T fluid tempera-
ture sensorWhen ATF temperature is 20°C
(68°F).1.5V
When ATF temperature is 80°C
(176°F).0.5V