2010 NISSAN LATIO display

AT-150
< SERVICE INFORMATION >
P1760 OVERRUN CLUTCH SOLENOID
Diagnosis Procedure
INFOID:0000000005397354
1.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITO R” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “OVERRUN/C S/V” while driving. Check the value changes according to driving speed.
Without CONSULT-III
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2.CHECK OVERRUN CLUTCH SOLENOID VALVE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND TERM INAL CORD ASSEMBLY HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly harness connector and TCM connector.
Item name Condition Display value
OVERRUN/C S/V When overrun clutch solenoid valve oper-
ates. (When overrun clutch disengaged.
Refer to
AT- 2 2
.) ON
When overrun clutch solenoid valve does
not operate. (When overrun clutch en-
gaged. Refer to AT- 2 2
.) OFF
Item
Connec-
tor Terminal
Condition Judge-
ment stan- dard
(Approx.)
Overrun
clutch sole-
noid valve E31
20 -
Ground When overrun clutch so-
lenoid valve operates.
(When overrun clutch dis-
engaged. Refer to AT- 2 2

.) Battery
voltage
When overrun clutch so-
lenoid valve dose not op-
erate. (When overrun
clutch engaged. Refer to
AT- 2 2
.) 0 V
SCIA3258E
Solenoid Valve Connector Terminal Resistance (Approx.)
Overrun clutch solenoid
valve E31 20 - Ground 20 - 30 Ω
SCIA3259E
Revision: January 20102010 Versa

VEHICLE SPEED SIGNALAT-153
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
VEHICLE SPEED SIGNAL
DescriptionINFOID:0000000005397356
The vehicle speed signal is built into the speedometer assembly. The sensor functions as an auxiliary device
to the output speed sensor when it is malfunctioning. The TCM will then use a signal sent from the vehicle
speed signal.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005397357
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005397358
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “VEHECLE SPEED SIGNAL” with CONSULT-III or 2nd judgement flicker without
CONSULT-III is detected when TCM does not rece ive the proper voltage signal from the sensor.
Possible CauseINFOID:0000000005397359
• Harness or connector
(The sensor circuit is open or shorted.)
• Vehicle speed signal
DTC Confirmation ProcedureINFOID:0000000005397360
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 accelerate vehicle from 0 to 25 km/h (0 to 16 MPH).
4. If the check result is NG, go to AT-155, "
Diagnosis Procedure" .
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions:
Selector lever posi tion: “D” position
Vehicle speed: Higher than 25 km/h (16 MPH)
3. Perform self-diagnosis. Refer to AT-82, "
Diagnosis Procedure without CONSULT-III" .
4. If the check result is NG, go to AT-155, "
Diagnosis Procedure" .
Item name ConditionDisplay value
VHCL/S SE-MTR During driving Approximately matches the speedometer reading.
Revision: January 20102010 Versa

VEHICLE SPEED SIGNALAT-155
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
Diagnosis ProcedureINFOID:0000000005397362
1.CHECK INPUT SIGNALWith 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 “VHCL/S SE-MTR” while driv ing. Check the value changes according to driving
speed.
Without CONSULT-III
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2.DETECT MALFUNCTIONING ITEM
Check the following items:
• Combination meter. Refer to DI-4
.
• Harness for short or open between TCM and combination meter.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts.
3.CHECK DTC
Perform AT-153, "
DTC Confirmation Procedure" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 4.
4.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.
Item name ConditionDisplay value
VHCL/S SE-MTR During driving Approximately matches
the speedometer reading.
Item Connec-
tor Terminal Condition Judgement
standard (Ap- prox.)
Vehicle
speed signal E32 40 -
Ground When driving vehicle at
2 to 3 km/h (1 to 2 MPH)
for 1 m (3 ft) or more. Voltage varies
between less
than 0 V and
more than 4.5
V
SCIA3246E
Revision: January 20102010 Versa

AT-156
< SERVICE INFORMATION >
BATT/FLUID TEMP SEN
BATT/FLUID TEMP SEN
DescriptionINFOID:0000000005397363
The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005397364
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005397365
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “BATT/FLUID TEMP SEN” with CONSULT-III or 8th judgement flicker without CON-
SULT-III is detected when TCM receives an exce ssively low or high voltage from the sensor.
Possible CauseINFOID:0000000005397366
• Harness or connector
(The sensor circuit is open or shorted.)
• A/T fluid temperature sensor
DTC Confirmation ProcedureINFOID:0000000005397367
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 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.
SLCT LVR POSI: “D” position
VEHICLE SPEED: Higher than 20 km/h (12 MPH)
5. If the check result is NG, go to AT-158, "
Diagnosis Procedure" .
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions.
Selector lever position: D position
Vehicle speed: higher than 20 km/h (12 MPH)
3. Perform self-diagnosis. Refer to AT-82, "
Diagnosis Procedure without CONSULT-III" .
4. If the check result is NG, go to AT-158, "
Diagnosis Procedure" .
Item nameCondition 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: January 20102010 Versa

AT-158
< SERVICE INFORMATION >
BATT/FLUID TEMP SEN
Diagnosis Procedure
INFOID:0000000005397369
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: January 20102010 Versa

AT-162
< SERVICE INFORMATION >
INPUT SPEED SENSOR A
INPUT SPEED SENSOR A
DescriptionINFOID:0000000005397371
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:0000000005397372
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005397373
• 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:0000000005397374
• Harness or connector
(The sensor circuit is open or shorted.)
• Input speed sensor
DTC Confirmation ProcedureINFOID:0000000005397375
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: January 20102010 Versa

AT-164
< SERVICE INFORMATION >
INPUT SPEED SENSOR A
Diagnosis Procedure
INFOID:0000000005397377
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: January 20102010 Versa

CONTROL UNIT (RAM), CONTROL UNIT (ROM)AT-167
< SERVICE INFORMATION >
DE
F
G H
I
J
K L
M A
B
AT
N
O P
CONTROL UNIT (RAM), CONTROL UNIT (ROM)
DescriptionINFOID:0000000005397378
The TCM consists of a microcomputer and connectors for signal
input and output and for power supply. The unit controls the A/T.
On Board Diagnosis LogicINFOID:0000000005397379
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “CONTROL UNIT (RAM)”, “CONTR OL UNIT (ROM)” with CONSULT-III is detected
when TCM memory (RAM) or (ROM) is malfunctioning.
Possible CauseINFOID:0000000005397380
TCM.
DTC Confirmation ProcedureINFOID:0000000005397381
CAUTION:
If performing this “DTC Confirmati on 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.
4. Run engine for at least 2 seconds at idle speed.
5. If the check result is NG, go to AT-167, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000005397382
1.CHECK DTC
With CONSULT-III
1. Turn ignition switch ON and select “SELF-DIAG RESULTS” mode for “TRANSMISSION” with CONSULT-
III.
2. Touch “ERASE”.
3. Perform AT-167, "
DTC Confirmation Procedure".
Is the
“CONTROL UNIT (RAM)” or “CONTROL UNIT (ROM)” displayed again?
YES >> Replace TCM. Refer to AT-212, "Removal and Installation".
NO >> INSPECTION END
SAT574J
Revision: January 20102010 Versa