2007 NISSAN LATIO TRANSMISSION

CVT-4Revision: June 20062007 Versa Possible Cause .....................................................137
DTC Confirmation Procedure ...............................137
WITH CONSULT-II ............................................137
WITH GST .........................................................137
Wiring Diagram — CVT — PRIPS ........................138
Diagnostic Procedure ...........................................139
DTC P0868 SECONDARY PRESSURE DOWN .....142
Description ............................................................142
CONSULT-II Reference Value ..............................142
On Board Diagnosis Logic ....................................142
Possible Cause .....................................................142
DTC Confirmation Procedure ...............................142
WITH CONSULT-II ............................................142
Diagnostic Procedure ...........................................143
DTC P1701 TRANSMISSION CONTROL MODULE
(POWER SUPPLY) ..................................................145
Description ............................................................145
On Board Diagnosis Logic ....................................145
Possible Cause .....................................................145
DTC Confirmation Procedure ...............................145
WITH CONSULT-II ............................................145
Wiring Diagram — CVT — POWER .....................146
Diagnostic Procedure ...........................................147
DTC P1705 THROTTLE POSITION SENSOR .......150
Description ............................................................150
CONSULT-II Reference Value ..............................150
On Board Diagnosis Logic ....................................150
Possible Cause .....................................................150
DTC Confirmation Procedure ...............................150
WITH CONSULT-II ............................................150
Diagnostic Procedure ...........................................151
DTC P1722 ESTM VEHICLE SPEED SIGNAL .......152
Description ............................................................152
CONSULT-II Reference Value ..............................152
On Board Diagnosis Logic ....................................152
Possible Cause .....................................................152
DTC Confirmation Procedure ...............................152
WITH CONSULT-II ............................................152
Diagnostic Procedure ...........................................153
DTC P1723 CVT SPEED SENSOR FUNCTION .....154
Description ............................................................154
On Board Diagnosis Logic ....................................154
Possible Cause .....................................................154
DTC Confirmation Procedure ...............................154
WITH CONSULT-II ............................................154
Diagnostic Procedure ...........................................155
DTC P1726 ELECTRIC THROTTLE CONTROL
SYSTEM ..................................................................156
Description ............................................................156
On Board Diagnosis Logic ....................................156
Possible Cause .....................................................156
DTC Confirmation Procedure ...............................156
WITH CONSULT-II ............................................156
Diagnostic Procedure ...........................................157
DTC P1740 LOCK-UP SELECT SOLENOID VALVE
CIRCUIT ..................................................................158
Description ............................................................158
CONSULT-II Reference Value ..............................158
On Board Diagnosis Logic ....................................158Possible Cause ..................................................... 158
DTC Confirmation Procedure ................................ 158
WITH CONSULT-II ............................................. 158
WITH GST ......................................................... 158
Wiring Diagram — CVT — L/USSV ...................... 159
Diagnostic Procedure ............................................ 160
Component Inspection .......................................... 162
LOCK-UP SELECT SOLENOID VALVE ............ 162
DTC P1745 LINE PRESSURE CONTROL ............. 163
Description ............................................................ 163
On Board Diagnosis Logic .................................... 163
Possible Cause ..................................................... 163
DTC Confirmation Procedure ................................ 163
WITH CONSULT-II ............................................. 163
Diagnostic Procedure ............................................ 163
DTC P1777 STEP MOTOR - CIRCUIT .................... 164
Description ............................................................ 164
CONSULT-II Reference Value ............................... 164
On Board Diagnosis Logic .................................... 164
Possible Cause ..................................................... 164
DTC Confirmation Procedure ................................ 164
WITH CONSULT-II ............................................. 164
WITH GST ......................................................... 164
Wiring Diagram — CVT — STM ........................... 165
Diagnostic Procedure ............................................ 166
Component Inspection .......................................... 167
STEP MOTOR ................................................... 167
DTC P1778 STEP MOTOR - FUNCTION ................ 168
Description ............................................................ 168
CONSULT-II Reference Value ............................... 168
On Board Diagnosis Logic .................................... 168
Possible Cause ..................................................... 168
DTC Confirmation Procedure ................................ 168
WITH CONSULT-II ............................................. 168
WITH GST ......................................................... 169
Diagnostic Procedure ............................................ 169
OVERDRIVE CONTROL SWITCH .......................... 170
Description ............................................................ 170
CONSULT-II Reference Value ............................... 170
Wiring Diagram — CVT — ODSW ........................ 171
Diagnostic Procedure ............................................ 172
Component Inspection .......................................... 174
OVERDRIVE CONTROL SWITCH .................... 174
SHIFT POSITION INDICATOR CIRCUIT ................ 175
Description ............................................................ 175
CONSULT-II Reference Value ............................... 175
Diagnostic Procedure ............................................ 175
SHIFT POSITION INDICATOR SYMPTOM
CHART ............................................................... 175
TROUBLE DIAGNOSIS FOR SYMPTOMS ............ 176
Wiring Diagram — CVT — NONDTC ................... 176
O/D OFF Indicator Lamp Does Not Come On ...... 180
SYMPTOM: ........................................................ 180
DIAGNOSTIC PROCEDURE ............................. 180
Engine Cannot Be Started in “P” and “N” Position . 181
SYMPTOM: ........................................................ 181
DIAGNOSTIC PROCEDURE ............................. 181
In “P” Position, Vehicle Moves Forward or Backward
When Pushed ....................................................... 182

CVT-5
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Revision: June 20062007 Versa SYMPTOM: ....................................................... 182
DIAGNOSTIC PROCEDURE ............................ 182
In “N” Position, Vehicle Moves ............................. 182
SYMPTOM: ....................................................... 182
DIAGNOSTIC PROCEDURE ............................ 182
Large Shock “N” → “R” Position ........................... 183
SYMPTOM: ....................................................... 183
DIAGNOSTIC PROCEDURE ............................ 183
Vehicle Does Not Creep Backward in “R” Position . 184
SYMPTOM: ....................................................... 184
DIAGNOSTIC PROCEDURE ............................ 184
Vehicle Does Not Creep Forward in “D” or “L” Posi-
tion ....................................................................... 185
SYMPTOM: ....................................................... 185
DIAGNOSTIC PROCEDURE ............................ 185
Vehicle Speed Does Not Change in “L” Position .. 186
SYMPTOM: ....................................................... 186
DIAGNOSTIC PROCEDURE ............................ 186
Vehicle Speed Does Not Change in overdrive-off
mode .................................................................... 187
SYMPTOM: ....................................................... 187
DIAGNOSTIC PROCEDURE ............................ 187
Vehicle Speed Does Not Change in “D” Position . 188
SYMPTOM: ....................................................... 188
DIAGNOSTIC PROCEDURE ............................ 188
Vehicle Does Not Decelerate by Engine Brake .... 189
SYMPTOM: ....................................................... 189
DIAGNOSTIC PROCEDURE ............................ 189
TRANSMISSION CONTROL MODULE ................. 190
Removal and Installation ...................................... 190
COMPONENTS ................................................ 190
REMOVAL ......................................................... 190
INSTALLATION ................................................. 190
SHIFT CONTROL SYSTEM ................................... 191
Removal and Installation ...................................... 191
CONTROL DEVICE COMPONENTS ............... 191
CONTROL CABLE COMPONENTS ................. 192
REMOVAL ......................................................... 192
INSTALLATION ................................................. 194
Control Device Disassembly and Assembly ......... 194
DISASSEMBLY ................................................. 194ASSEMBLY .......................................................194
Selector Lever Knob Removal and Installation .....195
REMOVAL .........................................................195
INSTALLATION .................................................195
Adjustment of CVT Position ..................................195
Checking of CVT Position .....................................196
CVT SHIFT LOCK SYSTEM ...................................197
Description ............................................................197
Shift Lock System Electrical Parts Location .........197
Wiring Diagram — CVT — SHIFT ........................198
Diagnostic Procedure ...........................................199
KEY INTERLOCK CABLE ......................................202
Removal and Installation ......................................202
COMPONENTS .................................................202
REMOVAL .........................................................202
INSTALLATION .................................................203
AIR BREATHER HOSE ..........................................205
Removal and Installation ......................................205
REMOVAL .........................................................205
INSTALLATION .................................................205
DIFFERENTIAL SIDE OIL SEAL ............................206
Removal and Installation ......................................206
COMPONENTS .................................................206
REMOVAL .........................................................206
INSTALLATION .................................................206
TRANSAXLE ASSEMBLY ......................................207
Removal and Installation ......................................207
COMPONENTS .................................................207
REMOVAL .........................................................207
INSTALLATION .................................................208
SERVICE DATA AND SPECIFICATIONS (SDS) ....210
General Specifications ..........................................210
Vehicle Speed When Shifting Gears ....................210
Stall Speed ...........................................................210
Line Pressure .......................................................210
Solenoid Valves ....................................................210
CVT Fluid Temperature Sensor ............................211
Primary Speed Sensor .........................................211
Secondary Speed Sensor .....................................211
Removal and Installation ......................................211

CVT-6
INDEX FOR DTC
Revision: June 20062007 Versa
INDEX FOR DTCPFP:00024
Alphabetical Index UCS005XB
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to CVT-68
.
*1: These numbers are prescribed by SAE J2012.
*2: Models without ABS does not indicate.
Items
(CONSULT-II screen terms) DTC
Reference page OBD-II Except OBD-II
CONSULT-II
GST*
1 CONSULT-II only
“TRANSMISSION”
A/T TCC S/V FNCTN P0744 P0744 CVT-110
ATF TEMP SEN/CIRC P0710 P0710CVT-85
BELT DAMG — P0730CVT-103
BRAKE SW/CIRC — P0703CVT-76
CAN COMM CIRCUIT U1000 U1000CVT-68
CONTROL UNIT(CAN) U1010 U1010CVT-71
CVT SPD SEN/FNCTN — P1723CVT-154
ENGINE SPEED SIG — P0725CVT-101
ELEC TH CONTROL — P1726CVT-156
ESTM VEH SPD SIG*2— P1722CVT-152
INPUT SPD SEN/CIRC P0715 P0715CVT-90
L/PRESS CONTROL — P1745CVT-163
L/PRESS SOL/CIRC P0745 P0745CVT-113
LU-SLCT SOL/CIRC P1740 P1740CVT-158
PNP SW/CIRC P0705 P0705CVT-78
PRESS SEN/FNCTN — P0841CVT-134
PRS CNT SOL/A FCTN P0746 P0746CVT-118
PRS CNT SOL/B CIRC P0778 P0778CVT-124
PRS CNT SOL/B FCTN P0776 P0776CVT-121
SEC/PRESS DOWN — P0868CVT-142
STARTER RELAY/CIRC — P0615CVT-72
STEP MOTR CIRC P1777 P1777CVT-164
STEP MOTR/FNC P1778 P1778CVT-168
TCC SOLENOID/CIRC P0740 P0740CVT-105
TCM-POWER SUPPLY — P1701CVT-145
TP SEN/CIRC A/T — P1705CVT-150
TR PRS SENS/A CIRC P0840 P0840CVT-129
TR PRS SENS/B CIRC P0845 P0845CVT-137
VEH SPD SEN/CIR AT P0720 P0720CVT-95

INDEX FOR DTC
CVT-7
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CVT
Revision: June 20062007 Versa
DTC No. Index UCS005XC
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to CVT-68
.
*1: These numbers are prescribed by SAE J2012.
*2: Models without ABS does not indicate.
DTC
Items
(CONSULT-II screen terms)Reference page OBD-II Except OBD-II
CONSULT-II
GST*
1CONSULT-II only
“TRANSMISSION”
— P0615 STARTER RELAY/CIRCCVT-72
— P0703 BRAKE SW/CIRCCVT-76
P0705 P0705 PNP SW/CIRCCVT-78
P0710 P0710 ATF TEMP SEN/CIRCCVT-85
P0715 P0715 INPUT SPD SEN/CIRCCVT-90
P0720 P0720 VEH SPD SEN/CIR ATCVT-95
— P0725 ENGINE SPEED SIGCVT-101
— P0730 BELT DAMGCVT-103
P0740 P0740 TCC SOLENOID/CIRCCVT-105
P0744 P0744 A/T TCC S/V FNCTNCVT-110
P0745 P0745 L/PRESS SOL/CIRCCVT-113
P0746 P0746 PRS CNT SOL/A FCTNCVT-118
P0776 P0776 PRS CNT SOL/B FCTNCVT-121
P0778 P0778 PRS CNT SOL/B CIRCCVT-124
P0840 P0840 TR PRS SENS/A CIRCCVT-129
— P0841 PRESS SEN/FNCTNCVT-134
P0845 P0845 TR PRS SENS/B CIRCCVT-137
— P0868 SEC/PRESS DOWNCVT-142
— P1701 TCM-POWER SUPPLYCVT-145
— P1705 TP SEN/CIRC A/TCVT-150
— P1722
ESTM VEH SPD SIG*2CVT-152
— P1723 CVT SPD SEN/FNCTNCVT-154
— P1726 ELEC TH CONTROLCVT-156
P1740 P1740 LU-SLCT SOL/CIRCCVT-158
— P1745 L/PRESS CONTROLCVT-163
P1777 P1777 STEP MOTR CIRCCVT-164
P1778 P1778 STEP MOTR/FNCCVT-168
U1000 U1000 CAN COMM CIRCUITCVT-68
U1010 U1010 CONTROL UNIT(CAN)CVT-71

PRECAUTIONS
CVT-9
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Revision: June 20062007 Versa
Precautions for On Board Diagnostic (OBD) System of CVT and EngineUCS005XG
The ECM has an on board diagnostic system. It will light up the malfunction indicator lamp (MIL) to warn the
driver of a malfunction causing emission deterioration.
CAUTION:

Be sure to turn the ignition switch OFF and disconnect the battery cable from the negative termi-
nal before any repair or inspection work. The open/short circuit of related switches, sensors, sole-
noid valves, etc. will cause the MIL to light up.

Be sure to connect and lock the connectors securely after work. A loose (unlocked) connector will
cause the MIL to light up due to an open circuit. (Be sure the connector is free from water, grease,
dirt, bent terminals, etc.)

Be sure to route and secure the harnesses properly after work. Interference of the harness with a
bracket, etc. may cause the MIL to light up due to a short circuit.

Be sure to connect rubber tubes properly after work. A misconnected or disconnected rubber tube
may cause the MIL to light up due to a malfunction of the EVAP system or fuel injection system,
etc.

Be sure to erase the unnecessary malfunction information (repairs completed) from the TCM and
ECM before returning the vehicle to the customer.
Service After Replacing TCM and Transaxle Assembly UCS006L3
SERVICE AFTER REPLACING TCM AND TRANSAXLE ASSEMBLY
Perform the applicable service in the following sheet when replacing TCM or transaxle assembly
CAUTION:

Do not start the engine until the service is completed.

“A/T C/U POWER SUPPLY [P1701]” may be indicated soon after replacing TCM or transaxle
assembly (after erasing the memory at the pattern B). Restart the self-diagnosis after erasing the
self-diagnosis result. Check that no error is detected.
NOTE:
Old unit means that the unit has been already used for another vehicle.
PATTERN A
1. Shift the selector lever to “P” position after replacing TCM. Turn the ignition switch ON.
2. Check that the shift position indicator in the combination meter turns ON (It indicates approximately 1 or 2
seconds after turning the ignition switch ON.)

Check the following items if the shift position indicator does not turn ON. Repair or replace the shift
position indicator if necessary.
–The harness between TCM and ROM ASSY in the transaxle assembly is open or short.
–Cable disconnected, loosen, or bent from the connector housing.
PATTERN B
1. Turn the ignition switch ON after replacing each part.
2. Connect CONSULT-II connector to data link connector. Refer to GI-38, "
CONSULT-II Start Procedure" .
3. Start engine.
CAUTION:
Do not start the driving.
4. Touch CONSULT-II screen in the order of “START (NISSAN BASED VHCL)”, “TRANSMISSION”, “DATA
MONITOR”, and “MAIN SIGNALS”.
5. Warm up the transaxle assembly until “ATF TEMP” indicates 48 (approximately 20°C) or more. Turn the
ignition switch OFF.
TCM CVT assembly Service pattern
Replace the new unit. Do not replace the unit.CVT-9, "
PAT T E R N A"
Do not replace the unit. Replace the new or old unit.
CVT-9, "
PAT T E R N B"Replace the old unit.Do not replace the unit.
Replace the new or old unit.
Replace the new unit. Replace the new or old unit.CVT-11, "
PAT T E R N C"

CVT-10
PRECAUTIONS
Revision: June 20062007 Versa
6. Turn the ignition switch ON.
CAUTION:
Do not start engine.
7. Select “SELF-DIAG RESULTS”.
8. Shift the selector lever to “R” position.
9. Depress slightly the accelerator pedal (Pedal angle: 2/8) while depressing the brake pedal.
10. Perform “ERASE”.
11. Shift the selector lever to “R” position after replacing TCM. Turn the ignition switch OFF.
12. Wait approximately 10 minutes after turning the ignition switch OFF.
13. Turn the ignition switch ON while shifting the selector lever to “R” position.
CAUTION:
Do not start engine.
14. Select “CALIBRATION DATA”.
15. Check that the value on “CALIBRATION DATA” is same as the data after erasing CVT-11, "
Calibration
Data" .

Restart the procedure from step 3 if the values are not same.
16. Shift the selector lever to “P” position.
17. Check that the shift position indicator in the combination meter turns ON (It indicates approximately 1 or 2
seconds after shifting the selector lever to “P” position.)

Check the following items if the shift position indicator does not turn ON. Repair or replace the shift
position indicator if necessary.
–The harness between TCM and ROM ASSY in the transaxle assembly is open or short.
–Cable disconnected, loosen, or bent from the connector housing.
–Power supply and ground of TCM. Refer to CVT-145, "DTC P1701 TRANSMISSION CONTROL MOD-
ULE (POWER SUPPLY)" .

CVT-18
CVT FLUID
Revision: June 20062007 Versa
CVT Fluid Cooler CleaningUCS005XP
Whenever a CVT is repaired, overhauled, or replaced, the CVT fluid cooler mounted in the radiator must be
inspected and cleaned.
Metal debris and friction material, if present, can be trapped or become deposit in the CVT fluid cooler. This
debris can contaminate the newly serviced CVT or, in severe cases, can block or restrict the flow of CVT fluid.
In either case, malfunction of the newly serviced CVT may occur.
Debris, if present, may deposit as CVT fluid enters the cooler inlet. It will be necessary to back flush the cooler
through the cooler outlet in order to flush out any built up debris.
CVT FLUID COOLER CLEANING PROCEDURE
1. Identify the CVT inlet and outlet fluid cooler hoses.
2. Position an oil pan under the inlet and outlet cooler hoses.
3. Disconnect the fluid cooler inlet and outlet rubber hoses from the
steel cooler tubes.
NOTE:
Replace the cooler hoses if rubber material from the hose
remains on the tube fitting.
4. Allow any CVT fluid that remains in the cooler hoses to drain into
the oil pan.
5. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:

Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.

Spray Transmission Cooler Cleaner only with adequate
ventilation.

Avoid contact with eyes and skin.

Do not breath vapors or spray mist.
6. Hold the hose and can as high as possible and spray Transmis-
sion Cooler Cleaner in a continuous stream into the cooler outlet hose until CVT fluid flows out of the
cooler inlet hose for 5 seconds.
7. Insert the tip of an air gun into the end of the cooler outlet hose.
8. Wrap a shop rag around the air gun tip and of the cooler outlet
hose.
9. Blow compressed air regulated to 5 to 9 kg/cm
2 (70 to 130 psi)
through the cooler outlet hose for 10 seconds to force out any
remaining CVT fluid.
10. Repeat steps 5 through 9 three additional times.
11. Position an oil pan under the banjo bolts that connect the CVT
fluid cooler steel lines to the transaxle.
12. Remove the banjo bolts.
13. Flush each steel line from the cooler side back toward the tran-
saxle by spraying Transmission Cooler Cleaner in a continuous stream for 5 seconds.
14. Blow compressed air regulated to 5 to 9 kg/cm
2 (70 to 130 psi) through each steel line from the cooler
side back toward the transaxle for 10 seconds to force out any remaining CVT fluid.
15. Ensure all debris is removed from the steel cooler lines.
16. Ensure all debris is removed from the banjo bolts and fittings.
17. Perform CVT-19, "
CVT FLUID COOLER DIAGNOSIS PROCEDURE" .
SCIA4421E
SCIA4422E
SCIA4423E

CVT FLUID
CVT-19
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Revision: June 20062007 Versa
CVT FLUID COOLER DIAGNOSIS PROCEDURE
NOTE:
Insufficient cleaning of the cooler inlet hose exterior may lead to inaccurate debris identification.
1. Position an oil pan under the transaxle's inlet and outlet cooler hoses.
2. Clean the exterior and tip of the cooler inlet hose.
3. Insert the extension adapter hose of a can of Transmission
Cooler Cleaner (Nissan P/N 999MP-AM006) into the cooler out-
let hose.
CAUTION:

Wear safety glasses and rubber gloves when spraying
the Transmission Cooler Cleaner.

Spray Transmission Cooler Cleaner only with adequate
ventilation.

Avoid contact with eyes and skin.

Do not breath vapors or spray mist.
4. Hold the hose and can as high as possible and spray Transmis-
sion Cooler Cleaner in a continuous stream into the cooler outlet hose until CVT fluid flows out of the
cooler inlet hose for 5 seconds.
5. Tie a common white, basket-type coffee filter to the end of the
cooler inlet hose.
6. Insert the tip of an air gun into the end of the cooler outlet hose.
7. Wrap a shop rag around the air gun tip and end of cooler outlet
hose.
8. Blow compressed air regulated to 5 to 9 kg/cm
2 (70 to 130 psi)
through the cooler outlet hose to force any remaining CVT fluid
into the coffee filter.
9. Remove the coffee filter from the end of the cooler inlet hose.
10. Perform CVT-20, "
CVT FLUID COOLER INSPECTION PROCE-
DURE" .
SCIA4421E
SCIA4424E
SCIA4425E