NISSAN LATIO 2009 Service Repair Manual

OK >> GO TO 3.
NG >> GO TO 2. .
• Harness for short or open between TCM and combination meter.
OK or NG OK >> GO TO 3.
NG >> Repair or replace damaged parts. DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 4. 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.
Item name Condition Display value
VHCL/S SE-MTR During driving Approximately matches
the speedometer reading. Item
Connec-
tor Terminal Condition Judgement
standard (Ap- prox.)
Vehicle
speed sen-
sor 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

AT
N
O P
DTC BATT/FLUID TEMP SEN (A/T FL
UID TEMP SENSOR CIRCUIT AND
TCM POWER SOURCE)
Description INFOID:0000000004305442
The A/T fluid temperature sensor detects the A/ T fluid temperature and sends a signal to the TCM.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004305443
Remarks: Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004305444
• 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 Cause INFOID:0000000004305445
• Harness or connector (The sensor circuit is open or shorted.)
• A/T fluid temperature sensor
DTC Confirmation Procedure INFOID:0000000004305446
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.
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-159, " 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-83, " Diagnosis Procedure without CONSULT-III " .
4. If the check result is NG, go to AT-159, " Diagnosis Procedure " .
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

TCM Terminal and Reference Value " .

AT
N
O P
Diagnosis Procedure
INFOID:0000000004305448OK >> GO TO 3.
NG >> GO TO 2. .
OK or NG OK >> GO TO 9.
NG >> Repair or replace damaged parts.

AT-160< SERVICE INFORMATION >
DTC BATT/FLUID TEMP SEN (A/T FLU
ID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
2. Check voltage TCM connector terminals while warming up A/T.
OK or NG OK >> GO TO 9.
NG >> GO TO 4. 4.
DETECT MALFUNCTIONING ITEM
Check the following items:
• Harness for short or open between TCM, ECM and terminal cord assembly
• Ground circuit for ECM
Refer to EC-121, " Wiring Diagram " (HR16DE),
EC-627, " Wiring Diagram " (MR Type 1) or
EC-1139, " Wiring
Diagram " (MR Type 2).
OK or NG OK >> GO TO 5.
NG >> Repair or replace damaged parts. 5.
CHECK FLUID TEMPERATURE SENSOR CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect the TCM connector.
3. Check resistance between terminals.
OK or NG OK >> GO TO 9.
NG >> GO TO 6. 6.
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.
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 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
Tempera-
ture °C ( °F) Resistance
(Approx.)
A/T fluid
temperature
sensor E32 47 - 42
AT-379, " A/T Fluid Tempera-
ture Sensor "
SCIA2338E
Item Connector Terminal Continuity
TCM E32 42 Yes
Terminal cord assembly
harness connector F30 7
TCM E32 47 Yes
Terminal cord assembly
harness connector F30 6 SCIA2660E

DTC BATT/FLUID TEMP SEN (A/T FLU
ID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
AT-161
< SERVICE INFORMATION >
D
E
F
G H
I
J
K L
M A
B AT
N
O P
OK >> GO TO 7.
NG >> Repair open circuit or short to ground or short to power in harness or connectors. 7.
CHECK A/T FLUID TEMPERATURE SENSOR WITH TERMINAL CORD ASSEMBLY
1. Turn ignition switch OFF.
2. Disconnect terminal cord assembly connector in engine room.
3. Check resistance between terminal cord assembly terminals.
4. Reinstall any part removed.
OK or NG OK >> GO TO 8.
NG >> Repair or replace damaged parts. 8.
DETECT MALFUNCTIONING ITEM
1. Remove oil pan. Refer to AT-221, " Control Valve Assembly and Accumulators " .
2. Check the following items:
- 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 9.
NG >> Repair or replace damaged parts. 9.
CHECK DTC
Perform AT-157, " DTC Confirmation Procedure " .
OK or NG OK >>
INSPECTION END
NG >> GO TO 10. 10.
CHECK TCM
1. Check TCM input/output signal. Refer to AT-77, " 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 Inspection INFOID:0000000004305449
A/T FLUID TEMPERATURE SENSOR Item Connector Terminal
Temperature
[° C ( °F)] Resistance
(Approx.)
A/T fluid tem-
perature sensor F30 6 - 7 AT-379, " A/T Fluid Temperature
Sensor "
SCIA4948E
Item Connector Terminal
Temperature
[° C ( °F)] Resistance
(Approx.)
A/T fluid tem-
perature sensor F30 6 - 7 AT-379, " A/T Fluid Temperature
Sensor "
SCIA7831E

AT-162< SERVICE INFORMATION >
DTC BATT/FLUID TEMP SEN (A/T FLU
ID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
• Remove oil pan. Refer to AT-221, " Control Valve Assembly and
Accumulators " .
• Check resistance between terminal cord assembly harness con-
nector terminals while changing temperature as shown.
Item Connector Terminal Temperature
[° C ( °F)] Resistance
(Approx.)
A/T fluid tem-
perature sensor F30 6 - 7 AT-379, " A/T Fluid Temperature
Sensor "
SCIA7831E

AT
N
O P
DTC TURBINE REVOLUTION SENSOR
Description INFOID:0000000004305450
The turbine revolution sensor (power train revolution s ensor) detects forward clutch drum rpm (revolutions per
minute). It is located on the input side of the automat ic transaxle. The vehicle speed sensor A/T (Revolution
sensor) is located on the output side of the automatic transaxle. With the two sensors, input and output rpms
are accurately detected. As a resu lt, optimal shift timing during deceleration and shift quality can be improved.
CONSULT-III Reference Val ue in Data Monitor Mode INFOID:0000000004305451
Remarks: Specification data are reference values.
On Board Diagnosis Logic INFOID:0000000004305452
• This is not an OBD-II self-diagnostic item.
• Diagnostic trouble code “TURBINE SENSOR” with CO NSULT-III or 10th judgement flicker without CON-
SULT-III is detected when TCM does not receiv e the proper voltage signal from the sensor.
Possible Cause INFOID:0000000004305453
• Harness or connector (The sensor circuit is open or shorted.)
• Turbine revolution sensor (power train revolution sensor)
DTC Confirmation Procedure INFOID:0000000004305454
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 procedure 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: Higher 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-165, " Diagnosis Procedure " .
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions for more than 5 seconds. Selector lever posi tion: “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-83, " Diagnosis Procedure without CONSULT-III " .
4. If the check result is NG, go to AT-165, " Diagnosis Procedure " .
Item name Condition Display value
TURBINE REV During driving (lock-up ON) Approximately matches the engine speed.

TCM Terminal and Reference Value " .

AT
N
O P
Diagnosis Procedure
INFOID:0000000004305456OK >> GO TO 8.
NG >> GO TO 2. Wiring Diagram - AT - MAIN " and
AT-164, " 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. Item Connector Terminal
Judgement standard
(Approx.)
TCM E31, E32 10 - 42
Battery voltage
19 - 42
Name Condition
Turbine revolution
sensor (power train
revolution 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 Turbine revolution sensor (pow-
er train revolution sensor) 360 Hz B