2011 NISSAN TIIDA Service Repair Manual

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Page 1185 of 3787

NISSAN TIIDA 2011 Service Repair Manual CVT-130
< SERVICE INFORMATION >[RE0F08B]
P1777 STEP MOTOR
Wiring Diagram - CVT - STM
INFOID:0000000005928928
TCM TERMINALS AND REFERENCE VALUES
Refer to CVT-46, "TCM Terminal and Reference Value".
AA

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NISSAN TIIDA 2011 Service Repair Manual P1777 STEP MOTORCVT-131
< SERVICE INFORMATION > [RE0F08B]
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Diagnosis ProcedureINFOID:0000000005928929
1.CHECK INPUT SIGNALS
With CONSULT-III
1. Start engine.
2. Select

Page 1187 of 3787

NISSAN TIIDA 2011 Service Repair Manual CVT-132
< SERVICE INFORMATION >[RE0F08B]
P1777 STEP MOTOR
5.CHECK TCM
1. Check TCM input/output signals. Refer to CVT-46, "
TCM Terminal and Reference Value" .
2. If NG, re-check TCM pin terminals fo

Page 1188 of 3787

NISSAN TIIDA 2011 Service Repair Manual P1778 STEP MOTORCVT-133
< SERVICE INFORMATION > [RE0F08B]
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P1778 STEP MOTOR
DescriptionINFOID:0000000005928931
• The step motor is included in the control valve asse

P1778 STEP MOTORCVT-133
< SERVICE INFORMATION > [RE0F08B]
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P1778 STEP MOTOR
DescriptionINFOID:0000000005928931
• The step motor is included in the control valve assembly.
• The step motor's 4 aspects of ON/OFF change according to the signal from TCM. As a result, the flow of line pressure to primary pulley is changed and pulley ratio is controlled.
• This diagnosis item is detected when electrical system is OK, but mechanical system is NG.
• This diagnosis item is detected when the state of the changing the speed mechanism in unit does not oper- ate normally.
CONSULT-III Reference Val ue in Data Monitor ModeINFOID:0000000005928932
Remarks: Specification data are reference values.
On Board Diagnosis LogicINFOID:0000000005928933
• This is an OBD-II self-diagnostic item.
• Diagnostic trouble code “P1778” with CONSULT-III is detected under the following conditions.
- When not changing the pulley ratio according to the instruction of TCM.
Possible CauseINFOID:0000000005928934
Step motor
DTC Confirmation ProcedureINFOID:0000000005928935
CAUTION:
• Always drive vehicle at a safe speed.
• Before starting “DTC Confirmation Procedure”, confirm “Hi” or “Mid” or “Low” fixation by “PRI
SPEED” and “VEHICLE SPEED” on “DATA MONITOR MODE”.
• If hi-geared fixation occurred, go to CVT-134, "
Diagnosis Procedure".
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF and
wait at least 10 seconds before performing the next test.
After the repair, touch “ERASE” on “SELF-DIAG RESULTS” and then perform the following procedure to con-
firm the malfunction is eliminated.
WITH CONSULT-III
1. Turn ignition switch ON and select “DATA MO NITOR” mode for “TRANSMISSION” with CONSULT-III.
2. Make sure that output voltage of CVT fluid temperature sensor is within the range below.
ATF TEMP SEN: 1.0 - 2.0 V
If out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to
increase the voltage (c ool down the fluid)
3. Select “DATA MONITOR” mode for “TRANSMISSION” with CONSULT-III.
4. Start engine and maintain the following conditions for at least 30 consecutive seconds. TEST START FROM 0 km/h (0 MPH)
CONSTANT ACCELERATION: Keep 30 sec or more
VEHICLE SPEED: 10 km/h (6 MPH) or more
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
ENG SPEED: 450 rpm or more
5. If DTC is detected, go to CVT-134, "
Diagnosis Procedure".
WITH GST
Follow the procedure “WITH CONSULT-III”.
Item name Condition Display value (Approx.)
STM STEP During driving(−
20) - (+180) step
GEAR RATIO 2.56 - 0.43
Revision: May 2010 2011 Versa

Page 1189 of 3787

NISSAN TIIDA 2011 Service Repair Manual CVT-134
< SERVICE INFORMATION >[RE0F08B]
P1778 STEP MOTOR
Diagnosis Procedure
INFOID:0000000005928936
1.CHECK STEP MOTOR
With CONSULT-III
It is monitoring whether “GEAR RATIO: 2.56 - 0.43” change

Page 1190 of 3787

NISSAN TIIDA 2011 Service Repair Manual OVERDRIVE CONTROL SWITCHCVT-135
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OVERDRIVE CONTROL SWITCH
DescriptionINFOID:0000000005928937
• Overdrive control switch is installe

Page 1191 of 3787

NISSAN TIIDA 2011 Service Repair Manual CVT-136
< SERVICE INFORMATION >[RE0F08B]
OVERDRIVE CONTROL SWITCH
Wiring Diagram - CVT - ODSW
INFOID:0000000005928939
TCM TERMINALS AND REFERENCE VALUES
Refer to CVT-46, "TCM Terminal and Reference V

Page 1192 of 3787

NISSAN TIIDA 2011 Service Repair Manual OVERDRIVE CONTROL SWITCHCVT-137
< SERVICE INFORMATION > [RE0F08B]
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Perform the self-diagnosis check. Refer to CVT-48, "CONSULT-III Function (TRANSMISSION)".
Is any ma

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