2011 NISSAN TIIDA ATC

AT-32
< SERVICE INFORMATION >
A/T CONTROL SYSTEM
*1: Output speed sensor
*2: Spare for accelerator pedal position signal
*3: If these input and output signals are different, the TCM triggers the fail-safe function.
*4: Used as a condition for starting self-diagnostics; if self-diagnosis are not started, it is judged that there is some kind of error.
*5: Input by CAN communications.
*6: Output by CAN communications.
Line Pressure ControlINFOID:0000000005928078
• TCM has various line pressure control char acteristics to match the driving conditions.
• An ON-OFF duty signal is sent to the line pres sure solenoid valve based on TCM characteristics.
• Hydraulic pressure on the clutch and brake is electronically controlled through the line pressure solenoid valve to accommodate engine torque. This results in smooth shift operation.
NORMAL CONTROL
The characteristic of the line pressure to the throttle opening is set
for suitable clutch operation.
BACK-UP CONTROL (ENGINE BRAKE)
If the selector lever is shifted to “2” position while driving in D4 or D3,
great driving force is applied to the clutch inside the transaxle. Clutch
operating pressure (line pressure) must be increased to deal with
this driving force.
DURING SHIFT CHANGE
Out-
put Shift solenoid valve A/B
X(*3) X X
Line pressure solenoid X (*3) X X
Torque converter clutch solenoid
valve X(
*3 ) X X
Overrun clutch solenoid valve XX (*3) X X
OD OFF indicator lamp
(*6)XX
Control item
Line
pressure
control Vehicle
speed
control Shift
control Lock-up
control Engine
brake
control Fail-safe
function Self-diag-
nostics
function
SAT003J
SAT004J
Revision: May 2010 2011 Versa

AT-78
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Check for time difference between actual shift timing and the CONSULT-III display. If the difference is
noticeable, mechanical parts (except solenoids, sens ors, etc.) may be malfunctioning. Check mechanical
parts using applicable diagnostic procedures.
2. Shift schedule (which implies gear position) display ed on CONSULT-III and that indicated in Service Man-
ual may differ slightly. This occurs because of the following reasons:
- Actual shift schedule has more or less tolerance or allowance,
- Shift schedule indicated in Service Manual refers to the point where shifts start, and
- Gear position displayed on CONSULT-III indicates the point where shifts are completed.
3. Shift solenoid valve “A” or “B” is displayed on CONSUL T-III at the start of shifting. Gear position is dis-
played upon completion of shifting (which is computed by TCM).
Item name Condition Display value (Approx.)
VHCL/S SE-A/T During driving Approximately matches the speedometer
reading.
VHCL/S SE-MTR
THROTTLE POSI Released accelerator pedal.
0.0/8
Fully depressed accelerator pedal. 8.0/8
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
BATTERY VOLT When turning ignition switch to “ON”. Battery voltage
ENGINE SPEED Engine running Approximately matches the tachometer
reading.
INPUT SPEED During driving (lock-up ON) Approximately matche s the engine speed.
OVERDRIVE SW When overdrive control switch is depressed. ON
When overdrive control switch is released. OFF
PN POSI SW When setting selector lever
to “N” or “P” position. ON
When setting selector lever to other positions. OFF
R POSITION SW When setting selector lever to “R” position. ON
When setting selector lever to other positions. OFF
D POSITION SW When setting selector lever to “D” position. ON
When setting selector lever to other positions. OFF
2 POSITION SW When setting selector lever to “2” position. ON
When setting selector lever to other positions. OFF
1 POSITION SW When setting selector lever to “1” position. ON
When setting selector lever to other positions. OFF
CLOSED THL/SW Released accelerator pedal.
ON
Depressed accelerator pedal. OFF
W/O THRL/P-SW Fully depressed accelerator pedal.
ON
Released accelerator pedal. OFF
SHIFT S/V A When shift solenoid valve A operates.
(When driving in “D
1” or “D4”.)
ON
When shift solenoid valve A does not operate.
(When driving in “D
2” or “D3”.) OFF
SHIFT S/V B When shift solenoid valve B operates.
(When driving in “D
1” or “D2”.)
ON
When shift solenoid valve B does not operate.
(When driving in “D
3” or “D4”.) OFF
Revision: May 2010
2011 Versa

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

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

P0725 ENGINE SPEEDAT-105
< SERVICE INFORMATION >
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P0725 ENGINE SPEED
DescriptionINFOID:0000000005928136
The engine speed signal is sent from the ECM to the TCM.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005928137
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005928138
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P0725 ENGINE SPEED” with CONSULT-III or 9th judgement flicker without CON-
SULT-III is detected when TCM does not receive the proper voltage signal from ECM.
Possible CauseINFOID:0000000005928139
Harness or connector
(Circuit is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000005928140
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 and select “DATA MO NITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Touch “START”.
3. Start engine and maintain the following conditions for at least 10 consecutive seconds.
VEHICLE SPEED: 10 km/h (6 MPH) or more
THROTTLE POSI: More than 1.0/8
SLCT LVR POSI: “D” position
4. If the check result is NG, go to AT-107, "
Diagnosis Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Start engine.
2. Drive vehicle under the following conditions for more than 10 seconds.
Selector lever posi tion: “D” position
Vehicle speed: Higher than 10 km/h (6 MPH)
Throttle position: Greater than 1. 0/8 of the full throttle position
3. Perform self-diagnosis. Refer to AT-82, "
Diagnosis Procedure without CONSULT-III" .
4. If the check result is NG, go to AT-107, "
Diagnosis Procedure" .
Item nameCondition Display value
ENGINE SPEED Engine running Approximately matches the ta chometer reading.
Revision: May 2010 2011 Versa

P0725 ENGINE SPEEDAT-107
< SERVICE INFORMATION >
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Diagnosis ProcedureINFOID:0000000005928142
1.CHECK DTC WITH ECM
Check DTC with CONSULT-III “ENGINE”.
Turn ignition switch ON and select “SELF-DIAGNOST IC RESULTS” mode for “ENGINE” with CONSULT-III.
Refer to EC-106, "
CONSULT-III Function" (HR16DE), EC-612, "CONSULT-III Function (ENGINE)" (MR18DE).
OK or NG
OK >> GO TO 2.
NG >> Check ignition signal circuit for engine control. Refer to EC-442, "
Description" (HR16DE), EC-
1019, "Component Description" (MR18DE).
2.CHECK INPUT SIGNAL
With CONSULT-III
1. Start engine.
2. Select “TCM INPUT SIGNALS” in “DATA MONI TOR” mode for “TRANSMISSION” with CONSULT-III.
3. Read out the value of “ENGINE SPEED”. Check engine speed changes according to throttle position.
Without CONSULT-III
1. Start engine.
2. Check voltage between TCM harness connector terminal and ground.
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. CHECK HARNESS BETWEEN TCM AND ECM
1. Turn ignition switch OFF.
2. Disconnect ECM connector and TCM connector.
3. Check continuity between ECM connector and TCM connector.
4. If OK, check harness for short to ground and short to power.
5. If OK, check continuity between body ground and transaxle
assembly.
6. Reinstall any part removed.
OK or NG
OK >> GO TO 4.
NG >> Repair open circuit or short to ground or short to power in harness or connectors.
Item name Condition Display value
ENGINE SPEED Engine running Approximately matches the tachome-
ter reading.
itemConnec-
tor Terminal Condition Judgement standard (Ap-
prox.)
Engine
speed signal E3239 -
Ground
and Refer to EC-464

(HR16DE), EC-605

(MR18DE).
SCIA3265E
Item Connector Terminal Continuity
TCM E3239
Ye s
ECM F1013
SCIA7173E
Revision: May 2010 2011 Versa

P0731 1GR INCORRECT RATIOAT-111
< SERVICE INFORMATION >
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1. Remove control valve assembly. Refer to AT-222, "Control Valve Assembly and Accumulators".
- Shift solenoid valve A
- Shift solenoid valve B
2. Check solenoid valve by listening for its operating sound while applying battery voltage to the terminals and ground. Refer to
AT-139, "
Wiring Diagram - AT - SSV/A" and AT-144, "Wiring Dia-
gram - 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:
- 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 assembly.
4.CHECK DTC
Perform AT-109, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> Check control valve again. If NG, repa ir or replace control valve assembly.
SCIA3595E
Revision: May 2010 2011 Versa

AT-114
< SERVICE INFORMATION >
P0732 2GR INCORRECT RATIO
- 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 assembly.
4.CHECK DTC
Perform AT-112, "
DTC Confirmation Procedure".
OK or NG
OK >> INSPECTION END
NG >> Check control valve again. If NG, repair or replace control valve assembly.
Revision: May 2010 2011 Versa