lock NISSAN LATIO 2011 Service Owner's Guide

TROUBLE DIAGNOSISAT-79
< SERVICE INFORMATION >
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SELF-DIAGNOSTIC RESULT MODE
Display Items List
OVERRUN/C S/V When overrun clutch solenoid valve operates.
(When overrun clutch disengaged. Refer to
AT-22 .) ON
When overrun clutch solenoid valve does not
operate. (When overrun clutch engaged. Refer
to AT- 2 2
.) OFF
BRAKE SW Depressed brake pedal.
ON
Released brake pedal. OFF
GEAR During driving 1, 2, 3, 4
SLCT LVR POSI When setting selector lever to “N” or “P” posi-
tions.
N · P
When setting selector lever to “R” position. R
When setting selector lever to “D” position. D
When setting selector lever to “2” position. 2
When setting selector lever to “1” position. 1
VEHICLE SPEED During driving Approximately matches the speedometer
reading.
LINE PRES DTY Line pressure low ⇔ Line pressure high 0 % ⇔ 94 %
TCC S/V DUTY Lock-up OFF ⇔ Lock-up ON 4 % ⇔ 94 %
Item name
Condition Display value (Approx.)
Items (CONSULT-III
screen terms) Malfunction is detected when... OBD-II (DTC)
Reference page
MIL indicator
lamp*1, “EN-
GINE” with
CONSULT-III
or GST
CAN COMM CIRCUIT • When TCM is not transmitting or receiving CAN communication signal
for 2 seconds or more. U1000
AT- 8 7
T/M RANGE SENSOR A • TCM does not receive the correct voltage signal (based on the gear
position) from the switch. P0705
AT- 9 0
FLUID TEMP SENSOR
A • TCM receives an excessively low or high voltage from the sensor. P0710
AT- 9 5
OUTPUT SPEED SEN-
SOR• TCM does not receive the proper voltage signal from the sensor.
P0720AT- 1 0 0
ENGINE SPEED • TCM does not re ceive the proper voltage signal from the ECM. P0725AT- 1 0 5
1GR INCORRECT RA-
TIO • A/T cannot be shifted to the 1GR position even if electrical circuit is
good. P0731*2AT- 1 0 9
2GR INCORRECT RA-
TIO• A/T cannot be shifted to the 2GR position even if electrical circuit is
good. P0732*2AT- 11 2
3GR INCORRECT RA-
TIO• A/T cannot be shifted to the 3GR position even if electrical circuit is
good. P0733*2AT- 11 5
4GR INCORRECT RA-
TIO• A/T cannot be shifted to the 4GR position even if electrical circuit is
good. P0734*2AT- 11 8
TORQUE CONVERTER• TCM detects an improper voltage drop when it tries to operate the so-
lenoid valve. P0740
AT- 1 2 3
TORQUE CONVERTER • A/T cannot perform lock-up even if electrical circuit is good.
P0744*2AT- 1 2 8
PC SOLENOID A• TCM detects an improper voltage drop when it tries to operate the so-
lenoid valve. P0745
AT- 1 3 3
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISAT-83
< SERVICE INFORMATION >
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4. Turn ignition switch ON. (Do not start engine.)
Does OD OFF indicator lamp come on about 2 seconds?
YES >> GO TO 2.
NO >> Stop procedure. Perform AT-180, "
OD OFF Indicator
Lamp Does Not Come On" before proceeding.
2.JUDGEMENT PROCEDURE STEP 1
1. Turn ignition switch OFF.
2. Keep pressing shift lock release button.
3. Move selector lever from “P” to “D” position.
4. Turn ignition switch ON. (Do not start engine.)
5. Keep pressing overdrive control switch while OD OFF indicator lamp is lighting up for 2 seconds. (OD OFF indicator lamp is on.)
6. Keep pressing overdrive control swit ch and shift selector lever to the “2” position. (OD OFF indicator lamp
is on.)
7. Stop pressing overdrive control switch. (OD OFF indicator lamp is on.)
8. Shift selector lever to the “1” position. (OD OFF indicator lamp is on.)
9. Keep pressing overdrive control switch . (OD OFF indicator lamp is off.)
10. Depress accelerator pedal fully while pressing overdrive control switch.
>> GO TO 3.
3.CHECK SELF-DIAGNOSIS CODE
Check OD OFF indicator lamp. Refer to "Judgement of Self-diagnosis Code" .
>>DIAGNOSIS END
Judgement of Self-diagnosis Code
SCIA7140E
Revision: May 2010 2011 Versa

AT-94
< SERVICE INFORMATION >
P0705 TRANSMISSION RANGE SWITCH A
Component Inspection
INFOID:0000000005928120
TRANSMISSION RANGE SWITCH
1. Check continuity between transmission range switch harness connector terminals.
2. If NG, check again with control cable (2) disconnected from manual shaft of A/T assembly. Refer to step 1.
(1): Lock nut
(3): Manual shaft
3. If OK on step 2, adjust control cable (2). Refer to AT-217,
"Adjustment of A/T Position" .
4. If NG on step 2, remove transmission range switch from A/T and check continuity of transmission range switch terminals. Refer to
step 1.
5. If OK on step 4, adjust trans mission range switch. Refer to AT-
225, "Transmission Range Switch" .
6. If NG on step 4, replace transmission range switch. Refer to AT-225, "
Transmission Range Switch" .
Selector lever position Connector Terminal Continuity
“P”
F251 - 2, 3 - 7
Ye s
*Continuity
should not
exist in posi-
tions other
than the
specified
positions.
“R”
3 - 8
“N” 1 - 2, 3 - 9
“D” 3 - 6
“2” 3 - 5
“1” 3 - 4
JSDIA1503GB
SCIA6370J
Revision: May 2010 2011 Versa

AT-100
< SERVICE INFORMATION >
P0720 OUTPUT SPEED SENSOR
P0720 OUTPUT SPEED SENSOR
DescriptionINFOID:0000000005928129
The output speed sensor detects the revolution of the idler gear parking pawl lock gear and emits a pulse sig-
nal. The pulse signal is sent to the TCM which converts it into vehicle speed.
CONSULT-III Reference Value in Data Monitor ModeINFOID:0000000005928130
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005928131
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0720 OUTPUT SPEED SENSOR ” with CONSULT-III or 1st judgement flicker
without CONSULT-III is detected when TCM does not re ceive the proper voltage signal from the sensor.
Possible CauseINFOID:0000000005928132
• Harness or connector
(The sensor circuit is open or shorted.)
• Output speed sensor
DTC Confirmation ProcedureINFOID:0000000005928133
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. Turn ignition switch ON and select “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Drive vehicle and check for an increase of “VHCL/S SE-MTR” value. If the check result is NG, go to AT-102, "
Diagnosis Procedure" .
If the check result is OK, go to following step.
4. Select “DATA MONITOR” mode fo r “TRANSMISSION” with CONSULT-III.
5. Touch “START”.
6. Start engine and maintain the following conditions for at least 5 consecutive seconds.
VEHICLE SPEED: 30 km/h (19 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
If the check result is NG, go to AT-102, "
Diagnosis Procedure" .
If the check result is OK, go to following step.
7. Maintain the following conditions for at least 5 consecutive seconds. ENGINE SPEED: 3,500 rpm or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
Driving location: Driving the vehicle uphill (increased engine load) will help maintain the driving
conditions required for this test.
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Start engine.
Item name Condition Display value
VHCL/S SE-A/T During driving Approximately matches the speedometer reading.
Revision: May 2010 2011 Versa

AT-118
< SERVICE INFORMATION >
P0734 4GR INCORRECT RATIO
P0734 4GR INCORRECT RATIO
DescriptionINFOID:0000000005928158
• 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:0000000005928159
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005928160
• 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:0000000005928161
• Shift solenoid valve A
• Shift solenoid valve B
• Line pressure solenoid valve
• Each clutch
• Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000005928162
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: May 2010 2011 Versa

P0740 TORQUE CONVERTERAT-123
< SERVICE INFORMATION >
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P0740 TORQUE CONVERTER
DescriptionINFOID:0000000005928164
• 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:0000000005928165
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005928166
• 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:0000000005928167
• Torque converter clutch solenoid valve
• Harness or connector
(The solenoid circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000005928168
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: May 2010 2011 Versa

P0740 TORQUE CONVERTERAT-125
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Diagnosis ProcedureINFOID:0000000005928170
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: May 2010 2011 Versa

AT-128
< SERVICE INFORMATION >
P0744 TORQUE CONVERTER
P0744 TORQUE CONVERTER
DescriptionINFOID:0000000005928172
• 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:0000000005928173
Remarks: Specification data are reference values.
On Board Diagn osis LogicINFOID:0000000005928174
• 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:0000000005928175
• Line pressure solenoid valve
• Torque converter clutch solenoid valve
• Each clutch
• Hydraulic control circuit
DTC Confirmation ProcedureINFOID:0000000005928176
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: May 2010 2011 Versa

P0744 TORQUE CONVERTERAT-129
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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 approximately 30 seconds after “TESTING”
shows.)
THROTTLE POSI: 1.0/8 - 2.0/8 (a t 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-64, "
Vehicle Speed at Which Gear Shifting Occurs".
- If “TESTING” does not appear on CONSULT-III for a long time, select “SELF-DIAG RESULTS”. In
case a DTC other than “P0744 T/C CLUT CH FNCTN” is shown, refer to AT- 7 7 , "
CONSULT-III Func-
tion (TRANSMISSION)".
6. Make sure that “OK” is disp layed. (If “NG” is displayed, refer to “DIAGNOSTIC PROCEDURE”.)
Refer to AT-129, "
Diagnosis Procedure".
Refer to AT-64, "
Vehicle Speed at Which Lock-up Occurs/Releases".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Diagnosis ProcedureINFOID:0000000005928177
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 6.
3.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-281, "
Control Valve Assembly".
2. Check to ensure that:
- Valve, sleeve and plug slide along valve bore under their own weight.
- Valve, sleeve and plug are free from burrs, dents and scratches.
- Control valve springs are free from damage, deformation and fatigue.
- Hydraulic line is free from obstacles.
OK or NG
OK >> GO TO 4.
NG >> Repair control valve.
4.CHECK SHIFT-UP (D3 TO D4)
SCIA7190E
Revision: May 2010 2011 Versa

AT-130
< SERVICE INFORMATION >
P0744 TORQUE CONVERTER
During AT-58, "Cruise Test - Part 1".
Does A/T shift from D
3 to D4 at the specified speed?
YES >> GO TO 5.
NO >> Check control valve again. Repair or replace control valve assembly.
5.CHECK DTC
Perform AT-128, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> GO TO 11. Check for proper lock-up.
6.CHECK VALVE RESISTANCE
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Line pressure solenoid valve
2. Check resistance between terminal cord assembly harness con- nector terminal and ground. Refer to AT-134, "
Wiring Diagram -
AT - L P S V".
OK or NG
OK >> GO TO 7.
NG >> Replace solenoid valve assembly.
7.CHECK VALVE OPERATION
1. Remove control valve assembly. Refer to AT-222, "
Control Valve Assembly and Accumulators".
- Line pressure solenoid valve
2. Check solenoid valve by listening for its operating sound while applying battery voltage to the terminal and ground. Refer to AT-
134, "Wiring Diagram - AT - LPSV".
OK or NG
OK >> GO TO 8.
NG >> Replace solenoid valve assembly.
8.CHECK CONTROL VALVE
1. Disassemble control valve assembly. Refer to AT-281, "
Control Valve Assembly".
2. Check line pressure circuit valves for sticking.
- Pressure regulator valve
- Pilot valve
- Pressure modifier valve
OK or NG
OK >> GO TO 9.
NG >> Repair control valve.
9.CHECK SHIFT-UP (D3 TO D4)
SCIA7190E
Solenoid valve Connectror Terminal Resistance (Approx.)
Line pressure solenoid
valve F30 4 - Ground 2.5 - 5
Ω
SCIA3457E
SCIA3275E
Revision: May 2010 2011 Versa