2011 NISSAN LATIO lock

P0744 TORQUE CONVERTERAT-131
< SERVICE INFORMATION >
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During AT-58, "Cruise Test - Part 1".
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 10.
NO >> Check control valve again. Repair or replace control valve assembly.
10.CHECK DTC
Perform AT-128, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 11. Check for proper lock-up.
11 .CHECK LOCK-UP
During AT-58, "
Cruise Test - Part 1".
A/T perform lock-up at the specified speed?
YES >> Perform “Cruise test — Part 1” again and return to the start point of this test group.
NO >> GO TO 12.
12.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Torque converter clutch solenoid valve
2. Check resistance between terminal cord assembly harness con- nector terminal and ground. Refer to AT-124, "
Wiring Diagram -
AT - T C V".
OK or NG
OK >> GO TO 13.
NG >> Replace solenoid valve assembly.
13.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Torque converter clutch solenoid valve
SCIA7190E
SCIA7191E
Solenoid valve Connectror Terminal Resistance (Approx.)
Torque converter clutch
solenoid valve F30 5 - Ground
5 - 20 Ω
SCIA2063E
Revision: May 2010 2011 Versa

AT-132
< SERVICE INFORMATION >
P0744 TORQUE CONVERTER
2. Check solenoid valve by listening for its operating sound whileapplying battery voltage to the terminal and ground. Refer to AT-
124, "Wiring Diagram - AT - TCV".
OK or NG
OK >> GO TO 14.
NG >> Replace solenoid valve assembly.
14.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-281, "
Control Valve Assembly".
2. Check control valves for sticking.
- Torque converter clutch control valve
- Torque converter clutch relief valve
OK or NG
OK >> GO TO 15.
NG >> Repair control valve.
15.CHECK LOCK-UP
During AT-58, "
Cruise Test - Part 1".
A/T perform lock-up at the specified speed?
YES >> GO TO 16.
NO >> Check control valve again. Repair or replace control valve assembly.
16.CHECK DTC
Perform AT-128, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> Perform “Cruise test — Part 1” again and return to the start point of this test group.
SCIA2066E
SCIA7191E
Revision: May 2010 2011 Versa

AT-158
< SERVICE INFORMATION >
BATT/FLUID TEMP SEN
Diagnosis Procedure
INFOID:0000000005928223
1.CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTIONING ITEM
Check the following items:
• Harness for short or open between ignition switch and TCM terminals 10, 19
• Harness for short or open between battery and TCM terminal 28
• 10A fuse (No.13, located in the fuse block) and 10A fuse (No.49, located in the IPDM E/R)
• Ignition switch. Refer to PG-4
.
OK or NG
OK >> GO TO 9.
NG >> Repair or replace damaged parts.
3.CHECK INPUT SIGNAL OF A/ T FLUID TEMPERATURE SENSOR
With CONSULT-III
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “FLUID TEMP SE”.
Without CONSULT-III
1. Start engine.
Item Connec-
tor Terminal Judgement standard (Approx.)
Power supply E31 10
Battery voltage
19 Battery voltage
Power supply
(memory back-up) E32 28
Battery voltage
SCIA2656E
Item Connec-
tor Terminal Judgement standard (Approx.)
Power supply E31 10
0 V
19 0 V
Power supply
(memory back-up) E32 28
Battery voltage
SCIA2657E
Item name Condition Display value
FLUID TEMP
SE When A/T fluid temperature is 20
°C (68 °F). 1.5 V
When A/T fluid temperature is 80 °C (176 °F). 0.5 V
Revision: May 2010 2011 Versa

AT-162
< SERVICE INFORMATION >
INPUT SPEED SENSOR A
INPUT SPEED SENSOR A
DescriptionINFOID:0000000005928225
The input speed sensor detects forward clutch drum rpm (revolutions per minute). It is located on the input
side of the automatic transaxle. The output speed sensor is located on the output side of the automatic tran-
saxle. With the two sensors, input and output rpms are accurately detected. As a result, optimal shift timing
during deceleration and shift quality can be improved.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928226
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005928227
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “INPUT SPEED SENSOR A” wi th CONSULT-III or 10th judgement flicker without
CONSULT-III is detected when TCM does not rece ive the proper voltage signal from the sensor.
Possible CauseINFOID:0000000005928228
• Harness or connector
(The sensor circuit is open or shorted.)
• Input speed sensor
DTC Confirmation ProcedureINFOID:0000000005928229
CAUTION:
• Always drive vehicle at a safe speed.
• Be careful not to rev engine into the red zone on the tachometer.
• 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 proc edure to confirm the malfunction is eliminated.
WITH CONSULT-III
1. Start engine.
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “START”.
4. Drive vehicle under the following conditions for more than 5 seconds.
SLCT LVR POSI: “D” position
VEHICLE SPEED: Higher than 40 km/h (25 MPH)
ENGINE SPEED: High er than 1,500 rpm
THROTTLE POSI: Greater than 1.0/ 8 of the full throttle position
5. If the check result is NG, go to AT-164, "
Diagnosis Procedure" .
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions for more than 5 seconds.
Selector lever position: “D” position
Vehicle speed: Higher than 40 km/h (25 MPH)
Engine speed: Higher than 1,500 rpm
Throttle position: 1.0/8 of the full throttle position
3. Perform self-diagnosis. Refer to AT-82, "
Diagnosis Procedure without CONSULT-III" .
4. If the check result is NG, go to AT-164, "
Diagnosis Procedure" .
Item nameCondition Display value
INPUT SPEED During driving (lock-up ON) Approximately matches the en gine speed.
Revision: May 2010 2011 Versa

AT-164
< SERVICE INFORMATION >
INPUT SPEED SENSOR A
Diagnosis Procedure
INFOID:0000000005928231
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “INPUT SPEED” while driving. Check the value changes according to driving speed.
OK or NG
OK >> GO TO 8.
NG >> GO TO 2.
2. CHECK INPUT SPEED SENSOR
With CONSULT-III
1. Start engine.
2. Check power supply to input speed sensor by voltage between TCM connector terminals. Refer to AT-
168, "Wiring Diagram - AT - MAIN" and AT-163, "Wiring Diagram - AT - PT/SEN" .
3. If OK, check the pulse when vehicle cruises.
OK or NG
OK >> GO TO 8.
NG >> GO TO 3.
3. CHECK POWER AND SENSOR GROUND
1. Turn ignition switch OFF.
2. Disconnect the input speed sensor harness connector.
3. Turn ignition switch ON.
Item name ConditionDisplay value
INPUT SPEED During driving (lock-up
ON)Approximately matches
the engine speed.
Item Connector
TerminalJudgement standard
(Approx.)
TCM E31, E32 10 - 42
Battery voltage
19 - 42
Name Condition
Input speed sensor When driving at 20 km/h (12 MPH), use the CONSULT-III
pulse frequency measuring function.*1
CAUTION:
Connect the diagnosis data link
cable to the vehicle diag-
nosis connector.
*1: A circuit tester cannot be used to test this item.
Item Connector Terminal Name Judgement
standard
(Approx.)
TCM E32 38 Input speed sensor 360 Hz
AWDIA0642GB
Revision: May 2010 2011 Versa

MAIN POWER SUPPLY AND GROUND CIRCUITAT-169
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000005928238
1.CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground.
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTIONING ITEM
Check the following items:
• Harness for short or open between ignition switch and TCM terminals 10, 19
• Harness for short or open between battery and TCM terminal 28
• 10A fuse (No.13, located in the fuse block) and 10A fuse (No.49, located in the IPDM E/R)
• Ignition switch. Refer to PG-4
.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Check continuity between TCM connector terminals and ground.
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 SYMPTOM
Drive for a while to check that there is no malfunction.
OK or NG
Item Connec-
tor Terminal Judgement standard (Approx.)
Power supply E31 10
Battery voltage
19 Battery voltage
Power supply
(memory back-up) E32 28
Battery voltage
SCIA2656E
ItemConnec-
tor Terminal Judgement standard (Approx.)
Power supply E31 10
0 V
19 0 V
Power supply
(memory back-up) E32 28
Battery voltage
SCIA2657E
Item Connector TerminalContinuity
Ground E3225, 48 - Ground Yes
SCIA2671E
Revision: May 2010 2011 Versa

TR SW, OD SW AND CLOSED THROTTLE, WIDE OPEN THROTTLE POSITION
SIGNAL CIRCUIT
AT-175
< SERVICE INFORMATION >
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11 .PERFORM SELF-DIAGNOSIS
Without CONSULT-III
Perform self-diagnosis. Refer to AT-82, "
Diagnosis Procedure without CONSULT-III".
OK or NG
OK >> INSPECTION END
NG − 1 >> Self-diagnosis does not activate: GO TO 12.
NG − 2 >> DTC is displayed: Check the malfunctioning system. Refer to AT-82, "
Diagnosis Procedure with-
out CONSULT-III".
12.CHECK TCM
1. Check TCM input/output signal. Refer to AT-75, "
TCM Terminal and Reference Value".
2. If NG, recheck TCM pin terminals for dam age or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Component InspectionINFOID:0000000005928242
OVERDRIVE CONTROL SWITCH
• Check continuity between A/T shift selector harness connector ter- minals.
TRANSMISSION RANGE SWITCH
1. Check continuity between transmission range switch harness connector terminals.
2. If NG, check again with control cable (2) disconnected from manual shaft (3) of A/T assembly. Refer to step 1.
(1): Lock nut
3. If OK on step 2, adjust control cable (2). Refer to AT-217,
"Adjustment of A/T Position".
4. If NG on step 2, remove transmission range switch from A/T assembly and check continuity of transmission range switch ter-
minals. Refer to step 1.
5. If OK on step 4, adjust transmission range switch. Refer to AT-
225, "Transmission Range Switch".
6. If NG on step 4, replace transmission range switch. Refer to AT-
225, "Transmission Range Switch".
ItemConnector Terminal Overdrive control
switch condition Continuity
A/T shift selector har-
ness connector (Over-
drive control switch) M38 1 - 2Released No
Depressed Yes
JSDIA1515ZZ
Selector lever position Connector Terminal Continuity “P”
F251 - 2, 3 - 7
Ye s
*Continuity
should not
exist in posi- tions other
than the
specified
positions.
“R”
3 - 8
“N” 1 - 2, 3 - 9
“D” 3 - 6
“2” 3 - 5
“1” 3 - 4
JSDIA1503GB
SCIA6370J
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSIS FOR SYMPTOMSAT-181
< SERVICE INFORMATION >
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OD OFF indicator lamp does not come on for abou t 2 seconds when turning ignition switch to ON.
DIAGNOSTIC PROCEDURE
1.CHECK CAN COMMUNICATION LINE
Perform self-diagnosis. Refer to AT-77, "
CONSULT-III Function (TRANSMISSION)" .
Is a malfunction in CAN communication indicated in the results?
YES >> Check CAN communication line. Refer to AT- 8 7 .
NO >> GO TO 2.
2.CHECK TCM POWER SOURCE
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground. Refer to AT-168, "
Wiring Diagram - AT - MAIN" .
3. Turn ignition switch OFF.
4. Check voltage between TCM connector terminals and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3.DETECT MALFUNCTIONING ITEM
Check the following.
• Harness for short or open between ignition switch and TCM connector terminals 10, 19. Refer to AT-168,
"Wiring Diagram - AT - MAIN" .
• Harness for short or open between battery and TCM connector terminal 28. Refer to AT-168, "
Wiring Dia-
gram - AT - MAIN" .
• 10A fuse (No.13, located in the fuse block) and 10A fuse (No.49, located in the IPDM E/R). Refer to AT-168,
"Wiring Diagram - AT - MAIN" .
• Ignition switch. Refer to PG-4
.
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4.CHECK TCM GROUND CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
Item Connector Terminal Judgement standard (Approx.)
TCM connector E3110 -
Ground
Battery voltage
19 -
Ground
E32 28 -
Ground
SCIA2656E
Item Connector Terminal Judgement standard (Approx.)
TCM connector E3110 -
Ground 0V
19 -
Ground 0V
E32 28 -
Ground Battery voltage
SCIA2657E
Revision: May 2010
2011 Versa