2011 NISSAN LATIO ignition

TROUBLE DIAGNOSISAT-57
< SERVICE INFORMATION >
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2. Move selector lever to “R”, “D”, “2” or “1” position.
3. Turn ignition switch to “START” position.
Is engine started?
YES >> • Stop “Road Test”. Mark the box on the “Diagnostic Worksheet Chart”.
•Go to AT-182, "
Engine Cannot Be Started in "P" and
"N" Position" .
• Continue “Road Test”.
NO >> GO TO 3.
3.CHECK VEHICLE MOVE
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release parking brake.
4. Push vehicle forward or backward.
Does vehicle move when it is pushed forward or backyard?
YES >> • Mark the box on the “D iagnostic Worksheet Chart”.
•Go to AT-183, "
In "P" Position, Vehicle Moves Forward
or Backward When Pushed" .
• Continue “Road Test”.
NO >> GO TO 4.
4.CHECK VEHICLE MOVE
1. Apply parking brake.
2. Start engine.
3. Move selector lever to “N” position.
4. Release parking brake.
Does vehicle move forward or backward?
YES >> • Mark the box on the “D iagnostic Worksheet Chart”.
•Go to AT-183, "
In "N" Position, Vehicle Moves" .
• Continue “Road Test”.
NO >> GO TO 5.
5.CHECK SHIFT SHOCK
SAT770B
SAT768B
SAT796A
SAT771B
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISAT-73
< SERVICE INFORMATION >
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Others Engine cannot be
started in “P” and “N”
positions.
AT- 1 8 2
ON vehicle
1. Ignition switch and starter
PG-4
, SC-9
2. Control cable adjustmentAT- 2 1 7
3. Transmission range switch adjustmentAT- 2 2 5
Engine starts in posi-
tions other than “P”
and “N”.ON vehicle
1. Control cable adjustment
AT- 2 1 7
2. Transmission range switch adjustmentAT- 2 2 5
Transaxle noise in“ P”
and “N” positions.ON vehicle1. A/T fluid level
AT- 1 7
2. Line pressure testAT- 5 1
3. Accelerator pedal position sensorEC-415

(HR16DE), EC-
982 (MR18DE)
4. Output speed sensor and vehicle speed signal AT- 1 0 0
, AT- 1 5 3
OFF vehicle5. Oil pump
AT- 2 7 86. Torque converterAT- 2 5 7
Vehicle moves when
changing into “P” po-
sition or parking gear
does not disengage
when shifted out of “P”
position.ON vehicle 1. Control cable adjustment
AT- 2 1 7
OFF vehicle 2. Parking componentsAT- 2 3 7
Vehicle runs in “N” po-
sition.
AT- 1 8 3
ON vehicle 1. Control cable adjustmentAT- 2 1 7
OFF vehicle2. Forward clutch
AT- 3 0 73. Reverse clutchAT- 2 9 7
4. Overrun clutchAT- 3 0 7
Vehicle braked when
shifting into “R” posi-
tion.ON vehicle
1. A/T fluid level
AT- 1 7
2. Control cable adjustmentAT- 2 1 7
3. Line pressure testAT- 5 1
4. Line pressure solenoid valveAT- 1 3 3
5. Control valve assemblyAT- 2 2 2
OFF vehicle6. High clutch
AT- 3 0 27. Brake band AT- 3 3 1
8. Forward clutchAT- 3 0 7
9. Overrun clutchAT- 3 0 7
Excessive creep. ON vehicle 1. Engine idling speed EC-24

(HR16DE), EC-
578 (MR18DE)
Engine stops when
shifting lever into “R”,
“D”, “2” and “1” posi-
tions. ON vehicle
1. Engine idling speed
EC-24

(HR16DE), EC-
578 (MR18DE)
2. A/T fluid level AT- 1 7
3. Torque converter clutch solenoid valveAT- 1 2 3
4. Control valve assemblyAT- 2 2 2
OFF vehicle 5. Torque converter AT- 2 5 7
ItemsSymptom Condition Diagnostic itemReference page
Revision: May 2010 2011 Versa

AT-76
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
TCM terminal data are reference values, measured between each terminal and ground.
Te r m i n a lWire
color Item
ConditionJudgement stan-
dard (Approx.)
1W Line pressure solenoid
valve When releasing accelerator pedal after
warming up engine.
1.5 - 3.0 V
When depressing accelerator pedal ful-
ly after warming up engine. 0 V
2P Line pressure solenoid
valve (with dropping re-
sistor) When releasing accelerator pedal after
warming up engine.
4 - 14 V
When depressing accelerator pedal ful-
ly after warming up engine. 0 V
3GR Torque converter clutch
solenoid valve When A/T performs lock-up.
8 - 15 V
When A/T does not perform lock-up. 0 V
5 L CAN H ——
6 P CAN L ——
10 R Power supply When turning ignition switch to “ON”.
Battery voltage
When turning ignition switch to “OFF”. 0 V
11 O Shift solenoid valve A When shift solenoid valve A operates.
(When driving in “D
1” or “D4”.)
Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2” or “D3”.) 0 V
12 G Shift solenoid valve B When shift solenoid valve B operates.
(When driving in “D
1” or “D2”.)
Battery voltage
When shift solenoid valve B does not
operate.
(When driving in “D
3” or “D4”.) 0 V
19 R Power supply When turning ignition switch to “ON”.
Battery voltage
When turning ignition switch to “OFF”. 0 V
20 V Overrun clutch solenoid
valve When overrun clutch solenoid valve op-
erates. (When overrun clutch disen-
gaged. Refer to
AT- 2 2
.) Battery voltage
When overrun clutch solenoid valve
does not operate. (When overrun clutch
engaged. Refer to AT- 2 2
.)0 V
25 B Ground Always0 V
26 Y Transmission range
switch “1” position
and When setting selector lever to “1” posi-
tion.
Battery voltage
When setting selector lever to other po-
sitions. 0 V
27 G Transmission range
switch “2” position When setting selector lever to “2” posi-
tion.
Battery voltage
When setting selector lever to other po-
sitions. 0 V
28 GR Power supply
(memory back-up) Always
Battery voltage
29 V Output speed sensor When driving at 20 km/h (12 MPH) 150 Hz
30
*1BR CONSULT- III (RX) ——
31
*1Y CONSULT- III (TX) ——
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

AT-82
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
Diagnosis Procedure without CONSULT-III
INFOID:0000000005928106
TCM SELF-DIAGNOSTIC PROCEDURE
Description
If a malfunction occurs in electrical system, turning ignition switch ON will illuminate OD OFF indicator lamp for
2 seconds. To detect a malfunction, entering a self-diagnosis start signal retrieves information on malfunctions
from memory and indicates malfunction by blinking OD OFF indicator lamp.
Diagnostic Procedure
1.CHECK OD OFF INDICATOR LAMP
1. Park vehicle on flat surface.
2. Move selector lever to “P” position.
3. Turn ignition switch OFF. Wait at least 5 seconds.
DTC work support item Description Check item
1ST GR FNCTN P0731 Following items for “1GR incorrect ratio (P0731)” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed
or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve A
• Shift solenoid valve B
• Each clutch
•Hydraulic co
ntrol circuit
2ND GR FNCTN P0732 Following items for “2GR incorrect ratio (P0732)” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed
or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve B
• Each clutch
•Hydraulic co
ntrol circuit
3RD GR FNCTN P0733 Following items for “3GR incorrect ratio (P0733)” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed
or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve A
• Each clutch
•Hydraulic co
ntrol circuit
4TH GR FNCTN P0734 Following items for “4GR incorrect ratio (P0734)” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed
or not)
• Self-diagnostic results (OK or NG) • Shift solenoid valve A
• Shift solenoid valve B
• Overrun clutch solenoid valve
• Line pressure solenoid valve
• Each clutch
•Hydraulic co
ntrol circuit
TCC S/V FNCTN P0744 Following items for “Torque converter (P0744)” can be confirmed.
• Self-diagnosis status (whether the diagnosis is being performed
or not)
• Self-diagnostic results (OK or NG) • Torque converter clutch sole-
noid valve
• Each clutch
•Hydraulic co ntrol circuit
SCIA5472E
Revision: May 2010 2011 Versa

TROUBLE DIAGNOSISAT-83
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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-86
< SERVICE INFORMATION >
TROUBLE DIAGNOSIS
t1 = 2.5 seconds t2 = 2.0 seconds t3 = 1.0 second
How to Erase Self-diagnostic Results
1. If the ignition switch stays ON after repair work, be sure to turn ignition switch OFF once. Wait for at least
5 seconds and then turn it ON again.
2. Perform "Diagnostic Procedure Without CONSULT-III" .
3. Turn ignition switch OFF. (The se lf-diagnostic results will be erased.)
11th judgement flicker is longer than others.
Line pressure solenoid valve circuit is short-circuited or discon-
nected.
⇒ Go to AT- 1 3 3
. 12th judgement flicker is longer than others.
CAN communication line is damaged.
⇒ Go to
AT- 8 7
.
Lamp turns off.
Transmission range switch, overdrive control switch, closed throt-
tle position signal or wide open throttle position signal circuit is dis-
connected or TCM is damaged.
(Because overdrive control switch signal, closed throttle position
signal and wide open throttle position signal are input via CAN
communication line malfunction may continue after self-diagno-
sis.)
⇒ Go to AT- 2 0 4 , "
TCM Self-Diagnosis Does Not Activate" .
OD OFF indicator lamp
SCIA7083ESCIA7085E
SCIA4674E
Revision: May 2010
2011 Versa

U1000 CAN COMM CIRCUITAT-87
< SERVICE INFORMATION >
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U1000 CAN COMM CIRCUIT
DescriptionINFOID:0000000005928107
CAN (Controller Area Network) is a serial communication line for real time application. It is an on-vehicle mul-
tiplex communication line with high data communica tion speed and excellent malfunction detection ability.
Many electronic control units are equipped onto a vehicle, and each control unit shares information and links
with other control units during operation (not independent). In CAN communication, control units are con-
nected with 2 communication lines (CAN H line, CAN L li ne) allowing a high rate of information transmission
with less wiring. Each control unit transmits/recei ves data but selectively reads required data only.
On Board Diagnosis LogicINFOID:0000000005928108
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “U1000 CAN COMM CIRCUIT” wit h CONSULT-III or 12th judgement flicker without
CONSULT-III is detected when TCM cannot communicate to other control units.
Possible CauseINFOID:0000000005928109
Harness or connector
(CAN communication line is open or shorted.)
DTC Confirmation ProcedureINFOID:0000000005928110
CAUTION:
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.
2. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
3. Touch “START”.
4. Wait at least 6 seconds or start engine and wait for at least 6 seconds.
5. If DTC is detected, go to AT-89, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
WITHOUT CONSULT-III
1. Turn ignition switch ON.
2. Wait at least 6 seconds or start engine and wait at least 6 seconds.
3. Perform self-diagnosis. Refer to AT-82, "
Diagnosis Procedure without CONSULT-III".
4. If DTC is detected, go to AT-89, "
Diagnosis Procedure".
Revision: May 2010 2011 Versa