2009 NISSAN LATIO Service Repair Manual

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Page 1177 of 4331

NISSAN LATIO 2009 Service Repair Manual CVT
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CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase “CVTF DETERIORATION DATE”.
SELF-DIAGNOSTIC RESULT MODE After performing self-diagnosis, place check marks for results

CVT
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CAUTION:
Touch “CLEAR” after changing CVT fluid, and then erase “CVTF DETERIORATION DATE”.
SELF-DIAGNOSTIC RESULT MODE After performing self-diagnosis, place check marks for results on the CVT-213, " How to Perform Trouble Diag-
nosis for Quick and Accurate Repair " . Reference pages are provided following the items.
Display Items List X: Applicable —: Not applicable
Less than 210000:
It is not necessary to change CVT fluid.
“CVTF DETERIORATION DATE”
Items (CONSULT-
III screen terms) Malfunction is detected when... TCM self-di-
agnosis OBD-III (DTC)
Reference page
“TRANSMIS-
SION” with
CONSULT-III MIL indicator
lamp*1, “EN- GINE” with
CONSULT-III
or GST
CAN COMM CIR-
CUIT When TCM is not transmitting or receiving CAN communica-
tion signal for 2 seconds or more U1000 U1000
CVT-238CONTROL
UNIT(CAN) When detecting error during the initial diagnosis of CAN con-
troller of TCM U1010 U1010
CVT-241BRAKE SW/CIRC When the brake switch does not switch to ON or OFF P0703 —
CVT-242PNP SW/CIRC
When TCM does not receive the the correct voltage signal
(based on the gear position) from the switch P0705 P0705
CVT-244ATF TEMP SEN/
CIRC During running, the CVT fluid temperature sensor signal volt-
age is excessively high or low P0710 P0710
CVT-249INPUT SPD SEN/
CIRC • Input speed sensor (primary speed sensor) signal is not in-
put due to an open circuit
• An unexpected signal is input when vehicle is being driven P0715 P0715
CVT-254VEH SPD SEN/
CIR AT • Signal from vehicle speed sensor CVT [Output speed sen-
sor (Secondary speed sensor)] not input due to open or
short circuit
• Unexpected signal input during running P0720 P0720
CVT-258ENGINE SPEED
SIG • TCM does not receive the CAN communication signal from
the ECM
• Engine speed is too low while driving P0725 —
CVT-263BELT DAMG Unexpected gear ratio detected P0730 —
CVT-265TCC SOLENOID/
CIRC Normal voltage not applied to solenoid due to open or short
circuit P0740 P0740
CVT-266A/T TCC S/V
FNCTN • CVT cannot perform lock-up even if electrical circuit is good
• TCM detects as irregular by comparing difference value with slip rotation
• There is big difference engine speed and primary speed
when TCM lock-up signal is on P0744 P0744
CVT-271L/PRESS SOL/
CIRC • Normal voltage not applied to solenoid due to open or short
circuit
• TCM detects as irregular by comparing target value with
monitor value P0745 P0745
CVT-273PRS CNT SOL/A
FCTN Unexpected gear ratio was detected in the LOW side due to
excessively low line pressure P0746 P0746
CVT-278PRS CNT SOL/B
FCTN Secondary pressure is too high or too low compared with the
commanded value while driving P0776 P0776
CVT-280

Page 1178 of 4331

NISSAN LATIO 2009 Service Repair Manual Malfunction Indicator Lamp (MIL) " .
*2: Models without ABS does not indicate.
DATA MONITOR MODE PRS CNT SOL/B
CIRC • Normal voltage not applied to solenoid due to cut line,
short, or the like
�

Malfunction Indicator Lamp (MIL) " .
*2: Models without ABS does not indicate.
DATA MONITOR MODE PRS CNT SOL/B
CIRC • Normal voltage not applied to solenoid due to cut line,
short, or the like
• TCM detects as irregular by comparing target value with
monitor value P0778 P0778
CVT-282TR PRS SENS/A
CIRC Signal voltage of the transmission fluid pressure sensor A
(secondary pressure sensor) is too high or too low while driv-
ing P0840 P0840
CVT-287PRESS SEN/
FNCTN Secondary fluid pressure is too high compared with the com-
manded value while driving P0841 —
CVT-291SEC/PRESS
DOWN Secondary fluid pressure is too low compared with the com-
manded value while driving P0868 —
CVT-293TCM-POWER
SUPPLY • When the power supply to the TCM is cut OFF, for example
because the battery is removed, and the self-diagnosis
memory function stops
• This is not a malfunction message (Whenever shutting OFF a power supply to the TCM, this message appears on
the screen) P1701 —
CVT-295TP SEN/CIRC A/T
TCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECM P1705 —
CVT-299ESTM VEH SPD
SIG*2 • CAN communication with the
ABS actuator and the electric
unit (control unit) is malfunctioning
• There is a great difference between the vehicle speed sig- nal from the ABS actuator and the electric unit (control
unit), and the vehicle speed sensor signal P1722 —
CVT-301CVT SPD SEN/
FNCTN A rotation sensor error is detected because the gear does not
change in accordance with the position of the stepping motor
CAUTION:
One of the “P0720 VEH SPD SEN/CIR AT”, the “P0715 IN-
PUT SPD SEN/CIRC” or the “P0725 ENGINE SPEED SIG“
is displayed with the DTC at the same time P1723 —
CVT-303ELEC TH CON-
TROL The electronically controlled throttle for ECM is malfunction-
ing P1726 —
CVT-305LU-SLCT SOL/
CIRC • Normal voltage not applied to solenoid due to cut line,
short, or the like
• TCM detects as irregular by comparing target value with monitor value P1740 P1740
CVT-306L/PRESS CON-
TROL TCM detects the unexpected line pressure P1745 —
CVT-310STEP MOTR CIRC
Each coil of the step motor is not energized properly due to
an open or a short P1777 P1777
CVT-311STEP MOTR/FNC
There is a great difference between the number of steps for
the stepping motor and for the actual gear ratio P1778 P1778
CVT-315NO DTC IS DE-
TECTED: FUR-
THER TESTING
MAY BE RE-
QUIRED No NG item has been detected X X —
Items (CONSULT-
III screen terms) Malfunction is detected when... TCM self-di-
agnosis OBD-III (DTC)
Reference page
“TRANSMIS-
SION” with
CONSULT-III MIL indicator
lamp*1, “EN- GINE” with
CONSULT-III
or GST

Page 1179 of 4331

NISSAN LATIO 2009 Service Repair Manual CVT
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Display Items List
X: Standard, —: Not applicable, : Option .
DSR REV (rpm) — —
DGEAR RATIO — —
DSTM STEP (step) — —
STM STEP (step) — X
LU PRS (MPa) — —
LINE PRS (MPa)

Page 1180 of 4331

Page 1181 of 4331

NISSAN LATIO 2009 Service Repair Manual CVT
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Diagnosis Procedure
without CONSULT-III INFOID:0000000004305601
OBD-II SELF-DIAGNOSTIC PROCEDURE (WITH GST)
Refer to EC-1124, " Generic Scan Tool (GST) Function " .
REV LAMP (ON/OFF) —

Page 1182 of 4331

NISSAN LATIO 2009 Service Repair Manual Diagnosis Procedure " .
WITH GST
Follow the procedure “WITH CONSULT-III”.

Page 1183 of 4331

NISSAN LATIO 2009 Service Repair Manual DTC U1000 CAN COMMUNICATION LINE
CVT-239
< SERVICE INFORMATION >
[RE0F08B] D
E
F
G H
I
J
K L
M A
B CVT
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Wiring Diagram - CVT - CAN
INFOID:0000000004305606
TCM TERMINALS AND REFERENCE VALUES Refer

Page 1184 of 4331

NISSAN LATIO 2009 Service Repair Manual “ U1000 CAN COMM CIRCUIT ” indicated?
YES >> Print out CONSULT-III screen, go to LAN section. Refer to
LAN-26, " CAN System Specification
Chart " .
NO >> INSPECTION END

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