2011 NISSAN LATIO check engine

P0710 TRANSMISSION FLUID TEMPERATURE SENSOR AAT-97
< SERVICE INFORMATION >
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With CONSULT-III
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “FLUID TEMP SE”.
Without CONSULT-III
1. Start engine.
2. Check voltage TCM connector terminals while warming up A/T.
OK or NG
OK >> GO TO 7.
NG >> GO TO 2.
2.DETECT MALFUNCTIONING ITEMS
Check the following.
• Harness for short or open between TCM, ECM and terminal cord assembly
• Ground circuit for ECM, Refer to EC-123
(HR16DE), EC-633 (MR18DE).
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3. CHECK FLUID TEMPERATURE SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the TCM connector.
3. Check resistance between TCM connector terminals.
OK or NG
OK >> GO TO 7.
NG >> GO TO 4.
4. CHECK HARNESS BETWEEN TCM AND TERMINAL CORD ASSEMBLY HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect terminal cord assemb ly harness connector and TCM connector.
Item name Condition Display value
(Approx.)
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
Item Connec-
tor Terminal
Condition Judge-
ment stan- dard
(Approx.)
A/T fluid
temperature
sensor E32 47 - 42 When A/T fluid tempera-
ture is 20 °C (68 °F). 1.5 V
When A/T fluid tempera- ture is 80 °C (176 °F). 0.5 V
SCIA2658E
Item Connector Terminal Te m p e r a -
ture [ °C ( °F)] Resistance
(Approx.)
A/T fluid
temperature
sensor E32
47 - 42 20 (68) 2.5 k
Ω
80 (176) 0.3 k Ω
SCIA2338E
Revision: May 2010 2011 Versa

AT-98
< SERVICE INFORMATION >
P0710 TRANSMISSION FLUID TEMPERATURE SENSOR A
3. Check continuity between terminal cord assembly harness con-
nector terminal and TCM connector terminal.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity bet ween ground and transaxle assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
5.CHECK A/T FLUID TEMPERATURE SENSO R WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector in engine room.
3. Check resistance between terminal cord assembly harness con- nector terminals.
4. Reinstall any part removed.
OK or NG
OK >> GO TO 6.
NG >> Repair or replace damaged parts.
6.DETECT MALFUNCTIONING ITEM
1. Remove oil pan. Refer to AT-222, "
Control Valve Assembly and Accumulators".
2. Check the following.
- A/T fluid temperature sensor
• Check resistance between terminal cord assembly harness con- nector terminals while changing temperature as shown.
- Harness of terminal cord assembly for short or open
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7.CHECK DTC
Perform AT-95, "
DTC Confirmation Procedure".
OK or NG
Item Connector Terminal Continuity
TCM E3242
Ye s
Terminal cord assembly
harness connector F30
7
TCM E3247
Ye s
Terminal cord assembly
harness connector F30
6
SCIA2660E
Item Connector Terminal Temperature
[° C ( °F)] Resistance
(Approx.)
A/T fluid tem-
perature sensor F30 6 - 7 20 (68) 2.5 k
Ω
80 (176) 0.3 kΩ
SCIA4948E
Item Connector Terminal Temperature
[° C ( °F)] Resistance
(Approx.)
A/T fluid tem-
perature sensor F30 6 - 7 20 (68) 2.5 k
Ω
80 (176) 0.3 kΩ
SCIA7831E
Revision: May 2010 2011 Versa

AT-100
< SERVICE INFORMATION >
P0720 OUTPUT SPEED SENSOR
P0720 OUTPUT SPEED SENSOR
DescriptionINFOID:0000000005928129
The output speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse sig-
nal. The pulse signal is sent to the TCM which converts it into vehicle speed.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928130
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005928131
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0720 OUTPUT SPEED SENSOR ” with CONSULT-III or 1st judgement flicker
without CONSULT-III is detected when TCM does not re ceive the proper voltage signal from the sensor.
Possible CauseINFOID:0000000005928132
• Harness or connector
(The sensor circuit is open or shorted.)
• Output speed sensor
DTC Confirmation ProcedureINFOID:0000000005928133
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. Turn ignition switch ON and select “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Drive vehicle and check for an increase of “VHCL/S SE-MTR” value. If the check result is NG, go to AT-102, "
Diagnosis Procedure" .
If the check result is OK, go to following step.
4. Select “DATA MONITOR” mode fo r “TRANSMISSION” with CONSULT-III.
5. Touch “START”.
6. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 30 km/h (19 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
If the check result is NG, go to AT-102, "
Diagnosis Procedure" .
If the check result is OK, go to following step.
7. Maintain the following conditions for at least 5 consecutive seconds. ENGINE SPEED: 3,500 rpm or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Start engine.
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
Revision: May 2010 2011 Versa

AT-102
< SERVICE INFORMATION >
P0720 OUTPUT SPEED SENSOR
TCM TERMINALS AND REFERENCE VALUES
Refer to AT-75, "TCM Terminal and Reference Value".
Diagnosis ProcedureINFOID:0000000005928135
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 “VHCL/S SE-A/T” while driving. Check the value changes according to driving speed.
OK or NG
OK >> GO TO 8.
NG >> GO TO 2.
2. CHECK OUTPUT SPEED SENSOR
With CONSULT-III
1. Start engine.
2. Check power supply to output speed sensor by voltage between TCM connector terminals. Refer to AT-
168, "Wiring Diagram - AT - MAIN" and AT-101, "Wiring Diagram - AT - VSSA/T" .
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 output speed sensor harness connector.
3. Turn ignition switch ON. (Do not start engine.)
Item Connector TerminalJudgement standard
(Approx.)
TCM E31, E32 10 - 42
Battery voltage
19 - 42
Item Condition
Output speed sen-
sor 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 data link
connector.
*1: A circuit tester cannot be used to test this item.
Item Connector Terminal Condition Judgement stan-
dard (Approx.)
TCM E32 29When driving at 20
km/h (12 MPH) 150 Hz
AWDIA0641GB
Revision: May 2010
2011 Versa

P0725 ENGINE SPEEDAT-105
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P0725 ENGINE SPEED
DescriptionINFOID:0000000005928136
The engine speed signal is sent from the ECM to the TCM.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005928137
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005928138
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0725 ENGINE SPEED” with CONSULT-III or 9th judgement flicker without CON-
SULT-III is detected when TCM does not receive the proper voltage signal from ECM.
Possible CauseINFOID:0000000005928139
Harness or connector
(Circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000005928140
CAUTION:
• Always drive vehicle at a safe speed.
• 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 MO NITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Start engine and maintain the following conditions for at least 10 consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
4. If the check result is NG, go to AT-107, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions for more than 10 seconds.
Selector lever posi tion: “D” position
Vehicle speed: Higher than 10 km/h (6 MPH)
Throttle position: Greater than 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-107, "
Diagnosis Procedure" .
Item nameCondition Display value
ENGINE SPEED Engine running Approximately matches the ta chometer reading.
Revision: May 2010 2011 Versa

P0725 ENGINE SPEEDAT-107
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Diagnosis ProcedureINFOID:0000000005928142
1.CHECK DTC WITH ECM
Check DTC with CONSULT-III “ENGINE”.
Turn ignition switch ON and select “SELF-DIAGNOST IC RESULTS” mode for “ENGINE” with CONSULT-III.
Refer to EC-106, "
CONSULT-III Function" (HR16DE), EC-612, "CONSULT-III Function (ENGINE)" (MR18DE).
OK or NG
OK >> GO TO 2.
NG >> Check ignition signal circuit for engine control. Refer to EC-442, "
Description" (HR16DE), EC-
1019, "Component Description" (MR18DE).
2.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “ENGINE SPEED”. Check engine speed changes according to throttle position.
Without CONSULT-III
1. Start engine.
2. Check voltage between TCM harness connector terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector and TCM connector.
3. Check continuity between ECM connector and TCM connector.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between body ground and transaxle
assembly.
6. 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.
Item name Condition Display value
ENGINE SPEED Engine running Approximately matches the tachome-
ter reading.
itemConnec-
tor Terminal Condition Judgement standard (Ap-
prox.)
Engine
speed signal E3239 -
Ground
and Refer to EC-464

(HR16DE), EC-605

(MR18DE).
SCIA3265E
Item Connector Terminal Continuity
TCM E3239
Ye s
ECM F1013
SCIA7173E
Revision: May 2010 2011 Versa

AT-108
< SERVICE INFORMATION >
P0725 ENGINE SPEED
4.CHECK DTC
Perform AT-105, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 5.
5.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 damage or loose connection with harness connector.
OK or NG
OK >> INSPECTION END
NG >> Repair or replace damaged parts.
Revision: May 2010 2011 Versa

P0731 1GR INCORRECT RATIOAT-109
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P0731 1GR INCORRECT RATIO
DescriptionINFOID:0000000005928143
• This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosis malfunction.
• This malfunction is detected when the A/T does not shif t into first gear position as instructed by the TCM.
This is not caused by electrical malfunction (circuit s open or shorted) but by mechanical malfunction such as
control valve sticking, improper solenoid valve operation, etc.
On Board Diagnosis LogicINFOID:0000000005928144
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0731 1GR INCORRECT RATIO” with CONSULT-III is detected when A/T cannot
be shifted to the 1GR position even if electrical circuit is good.
• This diagnosis monitors actual gear position by checki ng the torque converter slip ratio calculated by TCM
as follows:
Torque converter slip ratio = A x C/B
A: Output shaft revolution signal from output speed sensor
B: Engine speed signal from ECM
C: Gear ratio determined as gear position which TCM supposes
If the actual gear position is higher than the position (1st) supposed by TCM, the slip ratio will be more than
normal. In case the ratio exceeds the specif ied value, TCM judges this diagnosis malfunction.
This malfunction will be caused when either shift solenoid valve A is stuck open or shift solenoid valve B is
stuck open.
• Gear positions supposed by TCM are as follows: In case of gear position with no malfunctions: 1, 2, 3 and 4 positions
In case of gear position with shift solenoid valve A stuck open: 2*, 2, 3 and 3 positions
In case of gear position with shift solenoid valve B stuck open: 4*, 3, 3 and 4 positions to each gear position
above
*: “P0731 1GR INCORRECT RATIO” is detected.
Possible CauseINFOID:0000000005928145
• Shift solenoid valve A
• Shift solenoid valve B
• Each clutch
• Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000005928146
CAUTION:
• Always drive vehicle at a safe speed.
• 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. Start engine and select “DATA MONITOR” m ode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Make sure that output voltage of A/T fluid temperature sensor is within the range below. FLUID TEMP SE: 0.4 - 1.5 V
If out of range, drive the vehicle to decrease the vo ltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid).
4. Select “1ST GR FNCTN P0731” of “DTC & SR T CONFIRMATION” mode for “TRANSMISSION” with
CONSULT-III and touch “START”.
Gear position 1234
Shift solenoid valve A ON (Closed)OFF (Open)OFF (Open)ON (Closed)
Shift solenoid valve B ON (Closed)ON (Closed) OFF (Open)OFF (Open)
Revision: May 2010 2011 Versa