2007 NISSAN LATIO Fluid

AT-140
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: June 20062007 Versa
DTC Confirmation ProcedureUCS005P5
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-II
1. Start engine and select “DATA MONITOR” mode for “A/T” with
CONSULT-II.
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 vehicle to decrease voltage (warm up the
fluid) or stop engine to increase voltage (cool down the fluid).
4. Select “TCC S/V FNCTN P0744” of “DTC WORK SUPPORT”
mode for “A/T” with CONSULT-II and touch “START”.
5. Accelerate vehicle to more than 80 km/h (50 MPH) and maintain
the following conditions continuously until “TESTING” has turned to “COMPLETE”. (It will take approxi-
mately 30 seconds after “TESTING” shows.)
THROTTLE POSI: 1.0/8 - 2.0/8 (at all times during step 4)
SLCT LVR POSI: “D” position
TCC S/V DUTY: More than 94%
VEHICLE SPEED: Constant speed of more than 80 km/h (50 MPH)
–Make sure that “GEAR” shows “4”.
–For shift schedule, refer to AT- 6 7 , "Vehicle Speed at Which Gear Shifting Occurs" .
–If “TESTING” does not appear on CONSULT-II for a long time, select “SELF-DIAG RESULTS”. In
case a DTC other than “P0744 A/T TCC S/V FNCTN” is shown, refer to AT-82, "
Display Items List" .
6. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “DIAGNOSTIC PROCEDURE”.)
Refer to AT-141, "
Diagnostic Procedure" .
Refer to AT-67, "
Vehicle Speed at Which Lock-up Occurs/Releases" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
BCIA0031E

AT-170
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Revision: June 20062007 Versa
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
PFP:31940
DescriptionUCS005QG
The A/T fluid temperature sensor detects the A/T fluid temperature and sends a signal to the TCM.
CONSULT-II Reference ValueUCS005QH
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS005Q I

This is not an OBD-II self-diagnostic item.

Diagnostic trouble code “BATT/FLUID TEMP SEN” with CONSULT-II or 8th judgement flicker without
CONSULT-II is detected when TCM receives an excessively low or high voltage from the sensor.
Possible CauseUCS005QJ

Harness or connector
(The sensor circuit is open or shorted.)

A/T fluid temperature sensor
DTC Confirmation ProcedureUCS005QK
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-II
1. Start engine.
2. Select “DATA MONITOR” mode for “A/T” with CONSULT-II.
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-172, "
Diagnostic Procedure" .
WITHOUT CONSULT-II
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-90, "
Diagnostic Procedure Without CONSULT-II" .
4. If the check result is NG, go to AT-172, "
Diagnostic Procedure" .
Item name Condition Display value
FLUID TEMP SEWhen 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
BCIA0031E

DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
AT-171
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Revision: June 20062007 Versa
Wiring Diagram — AT — BA/FTSUCS005QL
BCWA0659E

AT-172
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Revision: June 20062007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureUCS005QM
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.
Terminal Wire color Item ConditionJudgement stan-
dard (Approx.)
10 R Power supply
or When turning ignition switch to
“ON”.Battery voltage
When turning ignition switch to
“OFF”.0 V
19 R Power supplyWhen turning ignition switch to
“ON”.Battery voltage
When turning ignition switch to
“OFF”.0 V
28 GRPower supply
(memory back-up)
AlwaysBattery voltage
42 B Sensor ground0 V
47 BRA/T fluid temperature
sensor
and 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-
torTerminal Judgement standard (Approx.)
Power supply E3110 Battery voltage
19 Battery voltage
Power supply
(memory back-up)E32 28 Battery voltage
SCIA2656E
Item Connec-
torTerminal Judgement standard (Approx.)
Power supply E3110 0 V
19 0 V
Power supply
(memory back-up)E32 28 Battery voltage
SCIA2657E

DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
AT-173
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Revision: June 20062007 Versa
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, "POWER SUPPLY ROUTING CIRCUIT" .
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-II
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONITOR” mode for “A/T” with CONSULT-II.
3. Read out the value of “FLUID TEMP SE”.
Without CONSULT-II
1. Start engine.
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-144, "
POWER SUPPLY AND GROUND CIRCUIT" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
Item name Condition Display value
FLUID TEMP
SEWhen 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
LCIA0090E
Item Connec-
torTerminal ConditionJudge-
ment stan-
dard
(Approx.)
A/T fluid
temperature
sensor E32 47 - 42When 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

AT-174
DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
Revision: June 20062007 Versa
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 TERMINAL 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 between ground and transaxle assembly.
6. Reinstall any part removed.
OK or NG
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.
Item Connector Terminal Te m p e r a -
ture °C (°F) Resistance
(Approx.)
A/T fluid
tempera-
ture sensor E32 47 - 42 20 (68) 2.5 kΩ
80 (176) 0.3 kΩ
SCIA2338E
Item Connector Terminal Continuity
TCM E32 42
Ye s
Terminal cord assembly
harness connectorF30 7
TCM E32 47
Ye s
Terminal cord assembly
harness connectorF30 6
SCIA2660E
Item Connector Terminal Temperature
[°C (°F)]Resistance
(Approx.)
A/T fluid tem-
perature sensorF30 6 - 720 (68) 2.5 kΩ
80 (176) 0.3 kΩ
SCIA4948E

DTC BATT/FLUID TEMP SEN (A/T FLUID TEMP SENSOR CIRCUIT AND TCM
POWER SOURCE)
AT-175
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Revision: June 20062007 Versa
8. DETECT MALFUNCTIONING ITEM
1. Remove oil pan. Refer to AT-242, "
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-170, "
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-78, "
TCM Terminals 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.
Component InspectionUCS005Q N
A/T FLUID TEMPERATURE SENSOR

Remove oil pan. Refer to AT - 2 4 2 , "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 sensorF30 6 - 720 (68) 2.5 kΩ
80 (176) 0.3 kΩ
SCIA7831E
Item Connector Terminal Temperature
[°C (°F)]Resistance
(Approx.)
A/T fluid tem-
perature sensorF30 6 - 720 (68) 2.5 kΩ
80 (176) 0.3 kΩ
SCIA7831E

TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-201
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Revision: June 20062007 Versa
In “P” Position, Vehicle Moves Forward or Backward When PushedUCS005UY
SYMPTOM:
Vehicle moves when it is pushed forward or backward with selector lever in “P” position.
DIAGNOSTIC PROCEDURE
1. CHECK A/T POSITION
Check A/T position. Refer to AT-234, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 2.
NG >> Adjust A/T position. Refer to AT-233, "
Adjustment of A/T Position" .
2. CHECK PARKING COMPONENTS
Check parking components. Refer to AT-257, "
Components" and
AT- 2 6 8 , "
DISASSEMBLY" .
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
In “N” Position, Vehicle MovesUCS005UZ
SYMPTOM:
Vehicle moves forward or backward when selecting “N” position.
DIAGNOSTIC PROCEDURE
1. CHECK A/T POSITION
Check A/T position. Refer to AT-234, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 2.
NG >> Adjust A/T position. Refer to AT-233, "
Adjustment of A/T Position" .
2. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 6 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 3.
NG >> Refill ATF.
3. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT-53, "
Fluid Condition Check" .
OK or NG
OK >> GO TO 5.
NG >> GO TO 4.
SAT2 8 2F