2010 NISSAN LATIO display

AT-110
< SERVICE INFORMATION >
P0731 1GR INCORRECT RATIO
5. Accelerate vehicle to 20 to 25 km/h (12 to 16 MPH) under the following conditions and release the accel-erator pedal completely.
THROTTLE POSI: Less than 1.0/8 (at all times during step 4)
SLCT LVR POSI: “D” position
- Make sure that “GEAR” shows “2” after releasing pedal.
6. Depress accelerator pedal to WOT (more than 7.0/8 of “THROTTLE POSI”) quickly from a speed of 20 to
25 km/h (12 to 16 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETED”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to AT-110, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT- III screen, go to the following step.
- Make sure that “GEAR” shows “1” wh en depressing accelerator pedal to WOT.
- If “TESTING” does not appear on CONSULT-III fo r a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC other than “P0731 1GR INCORRECT RATIO” is shown, refer to
AT-77, "
CONSULT-III Funct ion (TRANSMISSION)".
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-110, "
Diagnosis Procedure".
Refer to AT-64, "
Vehicle Speed at Which Gear Shifting Occurs".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000005397293
1.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Shift solenoid valve A
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con- nector terminals and ground. Refer to AT-139, "
Wiring Diagram -
AT - SSV/A" and AT-144, "Wiring Diagram - AT - SSV/B".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace damaged parts.
2.CHECK VALVE OPERATION
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists. 1 → 2 → 3 → 4
Malfunction for “1GR INCORRECT RATIO ”
exists. 2
→ 2 → 3 → 3
4 → 3 → 3 → 4
Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve A F302 - Ground 20 - 30
Ω
Shift solenoid valve B 1 - Ground 5 - 20 Ω
SCIA3594E
Revision: January 20102010 Versa

P0732 2GR INCORRECT RATIOAT-113
< SERVICE INFORMATION >
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- Make sure that “GEAR” shows “3” or “4” after releasing pedal.
6. Depress accelerator pedal to WOT (more than 7.0/8 of “THROTTLE POSI”) quickly from a speed of 45 to 50 km/h (28 to 31 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETE”. (It will take
approximately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to AT-113, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT-III screen, go to following step.
- Make sure that “GEAR” shows “2” when depressing accelerator pedal to WOT.
- If “TESTING” does not appear on CONSULT-III fo r a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC other than “P0732 2GR INCORRECT RATIO” is shown, refer to
AT-77, "
CONSULT-III Function (TRANSMISSION)".
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is disp layed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-113, "
Diagnosis Procedure".
Refer to AT-64, "
Vehicle Speed at Which Gear Shifting Occurs".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000005397298
1.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con- nector terminal and ground. Refer to AT-144, "
Wiring Diagram -
AT - SSV/B".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal and ground. Refer to AT-
144, "Wiring Diagram - AT - SSV/B".
OK or NG
OK >> GO TO 3.
NG >> Repair or replace shift solenoid valve assembly.
3.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-281, "
Control Valve Assembly".
2. Check to ensure that:
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1 → 2 → 3 → 4
Malfunction for “2GR INCORRECT RATIO”
exists. 4
→ 3 → 3 → 4
Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve B F30 1 - Ground 5 - 20 Ω
SCIA3454E
SCIA2058E
Revision: January 20102010 Versa

AT-116
< SERVICE INFORMATION >
P0733 3GR INCORRECT RATIO
-Make sure that “GEAR” shows “4” after releasing pedal.
6. Depress accelerator pedal steadily with 3.5/8 - 4.5/8 of “THROTTLE POSI” from a speed of 60 to 75 km/h (37 to 47 MPH) until “TESTING” changes to “STOP VEHICLE” or “COMPLETED”. (It will take approxi-
mately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to AT-116, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSUL T-III screen, go to following step.
- Make sure that “GEAR” shows “3” when depressing accelerator pedal with 3.5/8 - 4.5/8 of
“THROTTLE POSI”.
- If “TESTING” does not appear on CONSULT-III fo r a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC other than “P0733 3GR INCORRECT RATIO” is shown, refer to
AT-77, "
CONSULT-III Funct ion (TRANSMISSION)".
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is displayed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-116, "
Diagnosis Procedure".
Refer to AT-64, "
Vehicle Speed at Which Gear Shifting Occurs".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000005397303
1.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Shift solenoid valve A
- Shift solenoid valve B
2. Check resistance between terminal cord assembly harness con- nector terminals and ground. Refer to AT-139, "
Wiring Diagram -
AT - SSV/A" and AT-144, "Wiring Diagram - AT - SSV/B".
OK or NG
OK >> GO TO 2.
NG >> Repair or replace shift solenoid valve assembly.
2.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Shift solenoid valve A
- Shift solenoid valve B
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists. 1 → 2 → 3 → 4
Malfunction for “3GR INCORRECT RATIO”
exists. 1
→ 1 → 4 → 4
Solenoid valve Connector Terminal Resistance (Approx.)
Shift solenoid valve A F302 - Ground 20 - 30
Ω
Shift solenoid valve B 1 - Ground 5 - 20 Ω
SCIA3594E
Revision: January 20102010 Versa

AT-118
< SERVICE INFORMATION >
P0734 4GR INCORRECT RATIO
P0734 4GR INCORRECT RATIO
DescriptionINFOID:0000000005397304
• This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosismalfunction.
• This malfunction is detected when the A/T does not shif t into fourth gear position or the torque converter
clutch does not lock up as instructed by the TCM. This is not caused by electrical malfunction (circuits open
or shorted) but by mechanical malfunction such as c ontrol valve sticking, improper solenoid valve operation,
malfunctioning oil pump or torque converter clutch, etc.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005397305
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005397306
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0734 4GR INCORRECT RATIO” with CONSULT-III is detected when A/T cannot
be shifted to the 4GR 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 much lower than the pos ition (4th) supposed by TCM, the slip ratio will be much
less than normal. In case the ratio does not reach t he specified value, TCM judges this diagnosis malfunc-
tion.
This malfunction will be caused when shift solenoid valve A is stuck open or shift solenoid valve B is stuck
closed.
• 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 so lenoid valve A stuck open: 2, 2, 3 and 3* positions
In case of gear position with shift sol enoid valve B stuck closed: 1, 2, 2 and 1* positions to each gear position
above
*: “P0734 4GR INCORRECT RATIO” is detected.
Possible CauseINFOID:0000000005397307
• Shift solenoid valve A
• Shift solenoid valve B
• Line pressure solenoid valve
• Each clutch
• Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000005397308
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.
Gear position123 4
Shift solenoid valve A ON (Closed)OFF (Open)OFF (Open)ON (Closed)
Shift solenoid valve B ON (Closed)ON (Closed) OFF (Open)OFF (Open)
Item name Condition Display value (Approx.)
LINE PRES DTY Small throttle opening (Low line pressure) ⇔
Large
throttle opening (High line pressure) 0%
⇔ 94%
Revision: January 20102010 Versa

P0734 4GR INCORRECT RATIOAT-119
< SERVICE INFORMATION >
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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 “4TH GR FNCTN P0734” of “DTC & SR T CONFIRMATION” mode for “TRANSMISSION” with
CONSULT-III and touch “START”.
5. Accelerate vehicle to 55 to 65 km/h (34 to 40 MPH) under the following conditions and release the accel-
erator pedal completely.
THROTTLE POSI: Less th an 5.5/8 (at all times during step 4)
SLCT LVR POSI: “D” position
- Make sure that “GEAR” shows “3” after releasing pedal.
6. Depress accelerator pedal steadily with 1.0/8 - 2.0/ 8 of “THROTTLE POSI” from a speed of 55 to 65 km/h
(34 to 40 MPH) until “TESTING” has turned to “STO P VEHICLE” or “COMPLETED”. (It will take approxi-
mately 3 seconds.)
If the check result NG appears on CONSULT-III screen, go to AT-119, "
Diagnosis Procedure".
If “STOP VEHICLE” appears on CONSULT-III screen, go to following step.
- Make sure that “GEAR” shows “4” when depressing accelerator pedal with 1.0/8 - 2.0/8 of
“THROTTLE POSI”.
- If “TESTING” does not appear on CONSULT-III fo r a long time, select “SELF-DIAG RESULTS” for
“TRANSMISSION”. In case a DTC other than “P0734 4GR INCORRECT RATIO” is shown, refer to
AT-77, "
CONSULT-III Function (TRANSMISSION)".
7. Stop vehicle.
8. Follow the instruction displayed. (Check for normal shifting referring to the table below.)
9. Make sure that “OK” is disp layed. (If “NG” is displayed, refer to “Diagnostic Procedure”.)
Refer to AT-119, "
Diagnosis Procedure".
Refer to AT-64, "
Vehicle Speed at Which Gear Shifting Occurs".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000005397309
1.CHECK SHIFT-UP (D3 TO D4)
During AT-58, "
Cruise Test - Part 1".
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 11.
NO >> GO TO 2.
2.CHECK LINE PRESSURE
Perform line pressure test. Refer to AT-51, "
Inspections Before Trouble Diagnosis".
OK or NG
OK >> GO TO 3.
NG >> GO TO 7.
Vehicle condition Gear on actual transmission shift pattern when screen is changed to 1 → 2 → 3 → 4
No malfunction exists 1 → 2 → 3 → 4
Malfunction for “4GR INCORRECT RATIO”
exists. 2
→ 2 → 3 → 3
1 → 2 → 2 → 1
SCIA7190E
Revision: January 20102010 Versa

P0740 TORQUE CONVERTERAT-123
< SERVICE INFORMATION >
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P0740 TORQUE CONVERTER
DescriptionINFOID:0000000005397310
• The torque converter clutch solenoid valve is activated, with the gear in D4 and D3, by the TCM in response
to signals sent from the output speed sensor and t he ECM (throttle opening). Lock-up piston operation will
then be controlled.
• Lock-up operation, however, is prohibited when A/T fluid temperature is too low.
• When the accelerator pedal is depressed (less than 2/8) on lock-up condition, the engine speed should not
change abruptly. If there is an abrupt change in engine speed, there is no lock-up.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005397311
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005397312
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0740 T/C CLUTCH SOL” with CO NSULT-III or 7th judgement flicker without CON-
SULT-III is detected when TCM detects an improper vo ltage drop while it tries to operate solenoid valve.
Possible CauseINFOID:0000000005397313
• Torque converter clutch solenoid valve
• Harness or connector
(The solenoid circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000005397314
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. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III and wait at least 1 second.
3. Touch “START”.
4. Start engine and maintain the following conditions for at least 5 consecutive seconds. VEHICLE SPEED: 80 km/h (50 MPH) or more
THROTTLE POSI: 0.5/8 - 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehic le uphill (increased engine load) will help maintain the driving
conditions required for this test.
5. If the check result is NG, go to AT-125, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle in D
1→ D2→ D3→ D4→ D4 lock-up position.
3. Perform self-diagnosis. Refer to AT-82, "
Diagnosis Procedure without CONSULT-III" .
4. If the check result is NG, go to AT-125, "
Diagnosis Procedure" .
Item nameCondition Display value (Approx)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94%
Revision: January 20102010 Versa

P0740 TORQUE CONVERTERAT-125
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000005397316
1.CHECK INPUT SIGNALWith CONSULT-III
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “TCC S/V DUTY” 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 TORQUE CONVERTER CL UTCH 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 TERMINAL CORD ASSEMBLY HARNESS CONNECTOR
1. Turn ignition switch OFF.
2. Disconnect terminal cord assemb ly harness connector and TCM connector.
Monitor item Condition Display value
(Approx)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4 % ⇔ 94 %
Name Connec-
tor Terminal
ConditionJudgement
standard
(Approx.)
To r q u e c o n -
verter clutch
solenoid
valve E31 3 - Ground When A/T performs lock-
up.
8 - 15 V
When A/T does not per-
form lock-up. 0 V
SCIA3261E
Solenoid Valve Connector Terminal Resistance (Approx.)
Torque converter clutch
solenoid valve E31 3 - Ground
5 - 20 Ω
SCIA3262E
Revision: January 20102010 Versa

AT-128
< SERVICE INFORMATION >
P0744 TORQUE CONVERTER
P0744 TORQUE CONVERTER
DescriptionINFOID:0000000005397318
• This malfunction will not be detected while the OD OFF indicator lamp is indicating another self-diagnosismalfunction.
• This malfunction is detected when the A/T does not shif t into fourth gear position or the torque converter
clutch does not lock-up as instructed by the TCM. This is not caused by electrical malfunction (circuits open
or shorted) but by mechanical malfunction such as c ontrol valve sticking, improper solenoid valve operation,
malfunctioning oil pump or torque converter clutch, etc.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005397319
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005397320
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0744 T/C CLUTCH FNCTN” wit h CONSULT-III is detected when A/T cannot per-
form lock-up 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 much lower than the pos ition (4th) supposed by TCM, the slip ratio will be much
less than normal. In case the ratio does not reach t he specified value, TCM judges this diagnosis malfunc-
tion.
This malfunction will be caused when shift solenoid valve B is stuck closed.
• 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 B stuc k closed: 1, 2, 2 and 1* positions to each gear position
above
*: “P0744 T/C CLUTCH FNCTN” is detected.
Possible CauseINFOID:0000000005397321
• Line pressure solenoid valve
• Torque converter clutch solenoid valve
• Each clutch
• Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000005397322
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 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 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 & SR T CONFIRMATION” mode for “TRANSMISSION” with
CONSULT-III and touch “START”.
Item name Condition Display value (Approx)
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4% ⇔ 94%
Revision: January 20102010 Versa