2003 NISSAN X-TRAIL Electronic Repair Manual

brakes glove box height adjustment winter tires MPG clock

Page 441 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual ENGINE SPEED SIGNAL
AT-435
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4.CHECK DTC
Perform Self-diagnosis Code confirmation procedure,AT-432, "
ENGINE SPEED SIGNAL".
OK or NG
OK >>INSPECTION END
NG >> 1. Perform

Page 442 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-436
[ALL]
LINE PRESSURE SOLENOID VALVE
LINE PRESSURE SOLENOID VALVE
PFP:31940
DescriptionECS004UF
The line pressure solenoid valve regulates the oil pump discharge
pressure to suit the driving cond

AT-436
[ALL]
LINE PRESSURE SOLENOID VALVE
LINE PRESSURE SOLENOID VALVE
PFP:31940
DescriptionECS004UF
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
SELF-DIAGNOSIS CODE CONFIRMATION PROCEDURE
After the repair, perform the following procedure to confirm the malfunction is eliminated.
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 - 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
Diagnostic trouble code Malfunction is detected when... Check items (Possible cause)
: LINE PRESSURE S/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.)
lLine pressure solenoid valve
: 10th judgement flicker

Page 443 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual LINE PRESSURE SOLENOID VALVE
AT-437
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With CONSULT-II
1. Start engine.
2. Select “SELF-DIAG RESULTS” mode for A/T with CONSULT-II.
3. With brake pedal depressed, shif

Page 444 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-438
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LINE PRESSURE SOLENOID VALVE
Wiring Diagram — AT — LPSV
ECS004UG
TCWA0046E

Page 445 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual LINE PRESSURE SOLENOID VALVE
AT-439
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Diagnostic ProcedureECS004UH
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect terminal cord ass

Page 446 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-440
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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

Page 447 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual LINE PRESSURE SOLENOID VALVE
AT-441
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Component InspectionECS004UI
LINE PRESSURE SOLENOID VALVE
lFor removal, refer toAT-453, "Installation".
Resistance Check
lCheck resi

Page 448 of 3066

NISSAN X-TRAIL 2003 Electronic Repair Manual AT-442
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LINE PRESSURE SOLENOID VALVE
DROPPING RESISTOR
lCheck resistance between two terminals.
Resistance : 10 - 15W
SCIA0746E

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