NISSAN LATIO 2009 Service Repair Manual

CVT
N
O P
Diagnosis Procedure
INFOID:0000000004666932OK >> GO TO 5.
NG >> GO TO 2. OK >> GO TO 5.
NG >> GO TO 3. Name Connector Terminal
Temperature
°C ( °F) Voltage
(Approx.)
CVT fluid tem-
perature sen-
sor E32 47 - 42 20 (68) 2.0 V
80 (176) 1.0 V

OK >> GO TO 4.
NG >> Replace the transaxle assembly. Refer to CVT-182, " Removal and Installation " .
OK >> GO TO 5.
NG >> Repair or replace damaged parts. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 6. TCM Terminal and Reference Value " .
2. If NG, re-check TCM pin terminals for damage or loose connection with harness connector.
OK or NG OK >>
INSPECTION END
NG >> Repair or replace damaged parts.
Component Inspection INFOID:0000000004666933
CVT FLUID TEMPERATURE SENSOR
1. Turn ignition switch OFF.
2. Disconnect CVT unit harness connector. Name Connector Terminal
Tempera-
ture °C ( °F) Resistance
(Approx.)
CVT fluid
temperature
sensor F46 17 - 19 20 (68) 6.5 k
Ω
80 (176) 0.9 k Ω

DTC P0710 CVT FLUID TEMP
ERATURE SENSOR CIRCUIT
CVT-79
< SERVICE INFORMATION >
[RE0F08A] D
E
F
G H
I
J
K L
M A
B CVT
N
O P
3. Check resistance between CVT unit harness connector termi-
nals.
4. If NG, replace the transaxle assembly. Refer to CVT-182," Removal and Installation " .
Name Connector Terminal
Tempera-
ture °C ( °F) Resistance
(Approx.)
CVT fluid
temperature
sensor F46 17 - 19 20 (68) 6.5 k
Ω
80 (176) 0.9 k Ω SCIA4679E

Diagnosis Procedure " .
WITH GST
Follow the procedure “WITH CONSULT-III”. Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the tachometer reading.
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed.

CVT
N
O P
Wiring Diagram - CVT - PRSCVT
INFOID:0000000004666939
TCM TERMINALS AND REFERENCE VALUES Refer to CVT-49, " TCM Terminal and Reference Value " .

OK >> GO TO 6.
NG >> GO TO 2. OK >> GO TO 6.
NG - 1 >> Battery voltage is not supplied: GO TO 3.
NG - 2 >> Battery voltage is supplied, but there is a malfunction in
the frequency: GO TO 4.
3. CHECK HARNESS BETWEEN TCM AND CVT UNI T HARNESS CONNECTOR (SENSOR POWER ANDItem Connector Terminal Data (Approx.)
TCM E32 46 - 42 5.0 V
Name Condition
Input speed sensor
(Primary speed
sensor) When running at 20 km/h (12 MPH) in “L” position with the
closed throttle position signal OFF, use the CONSULT-III
pulse frequency measuring function.
CAUTION:
Connect the data link connector to the vehicle-side diag-
nosis connector.
Item Connector Terminal Name Data (Ap-
prox.)
TCM E32 38 Input speed sensor (Primary
speed sensor) 1000 Hz

CVT
N
O P
3. Check continuity between TCM connector terminals and primary
speed sensor harness connector terminals.
4. If OK, check harness for short to ground and short to power.
5. Reinstall any part removed.
OK or NG OK >> GO TO 6.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
4. CHECK HARNESS BETWEEN TCM AND CVT UNIT HARNESS CONNECTOR [INPUT SPEED SENSOR OK >> GO TO 5.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. DTC Confirmation Proce-
dure " .
Is the “ P0715 INPUT SPD SEN/CIRC ” detected again?
YES >> Replace the transaxle assembly. Refer to
CVT-182, " Removal and Installation " .
NO >> Replace TCM. Refer to CVT-12, " Service After Replacing TCM and Transaxle Assembly " .
DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 7. TCM Terminal and Reference Value " .
2. If NG, re-check 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 Connector Terminal Continuity
TCM E32 42 Yes
CVT unit harness connector F46 19
TCM E32 46 Yes
CVT unit harness connector F46 20

Diagnosis Procedure " .
WITH GST
Follow the procedure “WITH CONSULT-III”. Item name Condition Display value
VSP SENSOR During driving Approximatel y matches the speedometer reading.

CVT
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O P
Wiring Diagram - CVT - SESCVT
INFOID:0000000004666946
TCM TERMINALS AND REFERENCE VALUES Refer to CVT-49, " TCM Terminal and Reference Value " .

OK >> GO TO 8.
NG >> GO TO 2. Circuit Diagram " .
3. If OK, check the pulse when vehicle cruises.
OK or NG OK >> GO TO 8.
NG >> GO TO 3. Item Connector Terminal Data (Approx.)
TCM E31, E32 10 - 42
Battery voltage
19 - 42
Name Condition
Output speed sen-
sor (Secondary
speed sensor) When running at 20 km/h (12 MPH) in “D” position, use the
CONSULT-III pulse frequency measuring function.
CAUTION:
Connect the data link connector to the vehicle-side diag-
nosis connector.
Item Connector Terminal Name Data (Ap-
prox.)
TCM E32 29 Output speed sensor (Sec-
ondary speed sensor) 570 Hz