2008 NISSAN LATIO Service Repair Manual

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Page 137 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
AT-125
< SERVICE INFORMATION >
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5. Accelerate vehicle to more than 80 km/h (50 MPH) and maintain the following conditions contin

Page 138 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-126
< SERVICE INFORMATION >
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
During AT-55, "Cruise Test - Part 1".
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 5.
NO >> Check

Page 139 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
AT-127
< SERVICE INFORMATION >
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During AT-55, "Cruise Test - Part 1".
Does A/T shift from D
3 to D4 at the specified spe

Page 140 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-128
< SERVICE INFORMATION >
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
2. Check solenoid valve by listening for its operating sound while
applying battery voltage to the terminal and ground. Refer to

Page 141 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0745 LINE PRESSURE SOLENOID VALVE
AT-129
< SERVICE INFORMATION >
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DTC P0745 LINE PRESSURE SOLENOID VALVE
DescriptionINFOID:0000000001703266
The line pressure soleno

DTC P0745 LINE PRESSURE SOLENOID VALVE
AT-129
< SERVICE INFORMATION >
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DTC P0745 LINE PRESSURE SOLENOID VALVE
DescriptionINFOID:0000000001703266
The line pressure solenoid valve regulates the oil pump discharge pressure to suit the driving condition in
response to signals sent from the TCM.
The line pressure duty cycle value is not constant 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-III Reference Value in Data Monitor ModeINFOID:0000000001703267
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000001703268
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0745 LINE PRESSURE S/V” with CONSULT-III or 11th judgement flicker without
CONSULT-III is detected when TCM detects an improper voltage drop while it tries to operate the solenoid
valve.
Possible CauseINFOID:0000000001703269
• Harness or connector
(The solenoid circuit is open or shorted.)
• Line pressure solenoid valve
DTC Confirmation ProcedureINFOID:0000000001703270
CAUTION:
If performing this “DTC Confirmation Procedure” again, always turn ignition switch OFF and wait at
least 10 seconds before continuing.
After the repair, perform the following procedure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MONITOR” mode for “A/T” with CONSULT-III.
2. Touch “START”.
3. Depress accelerator pedal completely and wait at least 1 second.
4. If the check result is NG, go to AT-131, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Start engine.
2. With brake pedal depressed, shift the lever from “P”→“N”→“D”→“N”→“P” positions.
3. Perform self-diagnosis. Refer to AT-78, "
Diagnosis Procedure without CONSULT-III" .
4. If the check result is NG, go to AT-131, "
Diagnosis Procedure" .
Item name Condition Display value (Approx.)
LINE PRES DTYSmall throttle opening (Low line pressure) ⇔ Large
throttle opening (High line pressure)0% ⇔ 94%

Page 142 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-130
< SERVICE INFORMATION >
DTC P0745 LINE PRESSURE SOLENOID VALVE
Wiring Diagram - AT - LPSV
INFOID:0000000001703271
TCM TERMINALS AND REFERENCE VALUES
Refer to AT-71, "TCM Terminal and Refere

Page 143 of 2771

NISSAN LATIO 2008 Service Repair Manual DTC P0745 LINE PRESSURE SOLENOID VALVE
AT-131
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000001703272
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Turn ignition

Page 144 of 2771

NISSAN LATIO 2008 Service Repair Manual AT-132
< SERVICE INFORMATION >
DTC P0745 LINE PRESSURE SOLENOID VALVE
3. Check resistance between terminal cord assembly harness con-
nector terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> Repair o

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