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DTC P0745 LINE PRESSURE SOLENOID VALVE
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DIAGNOSTIC TROUBLE CODE (DTC) CONFIRMATION PROCEDURE
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. Depress accelerator pedal completely and wait at least 1 sec-
ond.
With GST
Follow the procedure “With CONSULT-II”.
SAT014K
SAT020K
Page 194 of 3066
AT-188
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DTC P0745 LINE PRESSURE SOLENOID VALVE
Wiring Diagram — AT — LPSV
ECS004RV
TCWA0046E
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![NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0745 LINE PRESSURE SOLENOID VALVE
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Diagnostic ProcedureECS004RW
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect te NISSAN X-TRAIL 2003 Electronic Repair Manual DTC P0745 LINE PRESSURE SOLENOID VALVE
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Diagnostic ProcedureECS004RW
1.CHECK VALVE RESISTANCE
1. Turn ignition switch to “OFF” position.
2. Disconnect te](/manual-img/5/57402/w960_57402-194.png)
DTC P0745 LINE PRESSURE SOLENOID VALVE
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Diagnostic ProcedureECS004RW
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 4 and ground.
OK or NG
OK >> GO TO 2
NG >> 1. Remove control valve assembly. Refer toAT-454,
"REMOVAL".
2. Check the following items:
–Line pressure solenoid valve
Refer to “Component Inspection”,AT-191, "
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 resistance between terminal 4 and TCM harness connector terminal 2.
OK or NG
OK >> GOTO3
NG >> Check the following items:
lDropping resistor
Refer to “Component Inspection”,AT-191, "
Compo-
nent Inspection".
lHarness for short or open between TCM terminal 2
and terminal cord assembly (Main harness) Resistance : 2.5 - 5W
SCIA0741E
Resistance : 10 - 15W
SCIA0742E
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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
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DTC P0745 LINE PRESSURE SOLENOID VALVE
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Component InspectionECS004RX
LINE PRESSURE SOLENOID VALVE
lFor removal, refer toAT-454, "REMOVAL".
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.
SCIA0744E
Solenoid valve Terminal No.Resistance
(Approx.)
Line pressure
solenoid valve4 Ground 2.5 - 5W
SCIA0745E
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DTC P0745 LINE PRESSURE SOLENOID VALVE
DROPPING RESISTOR
lCheck resistance between two terminals.
Resistance : 10 - 15W
SCIA0746E
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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
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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
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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 200 of 3066
AT-194
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DTC P0750 SHIFT SOLENOID VALVE A
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.
3. Drive vehicle in D position and allow the transmission to shift “1”
®“2” (“GEAR”).
With GST
Follow the procedure “With CONSULT-II”.
SAT014K
SAT020K