lock NISSAN VERSA 2006 Workshop Service Repair Manual

TROUBLE DIAGNOSIS
CVT-53
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9. CHECK ENGINE BRAKE FUNCTION — PART 3
1. Move selector lever to “L” position.
2. Check engine brake.
Does engine braking effectively reduce speed in
“L” position?
YES >> 1. Stop the vehicle.
2. Perform self-diagnosis. Refer to CVT-60, "
SELF-DIAGNOSTIC RESULT MODE" .
NO >> Mark the box of CVT-189, "
Vehicle Does Not Decelerate by Engine Brake" on the CVT-37,
"DIAGNOSTIC WORKSHEET" . Then continue trouble diagnosis.
Vehicle Speed When Shifting GearsUCS005YG
Numerical value data are reference values.
CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).Engine type Throttle position Shift patternEngine speed (rpm)
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
MR18DE8/8“D” position
Overdrive-off mode
“L” position3,600 - 4,400 4,400 - 5,200
2/8“D” position 1,400 - 2,400 1,500 - 2,500
Overdrive-off mode 2,200 - 3,000 2,800 - 3,600
“L” position 3,200 - 4,000 3,900 - 4,700

CVT-54
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
TCM Input/Output Signal Reference ValuesUCS005YH
TCM TERMINAL CONNECTOR LAYOUT
TCM INSPECTION TABLE
Data are reference values and are measured between each terminal and ground.
SCIA0495E
TerminalWire
colorItem Condition Data (Approx.)
1GRPressure con-
trol solenoid
valve A (Line
pressure sole-
noid valve)
and Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 1.0 - 3.0 V
2LGPressure con-
trol solenoid
valve B (Sec-
ondary pressure
solenoid valve) Release your foot from the accelerator pedal. 5.0 - 7.0 V
Press the accelerator pedal all the way down. 3.0 - 4.0 V
3SBTorque con-
verter clutch
solenoid valveWhen vehi-
cle cruises in
“D” position.When CVT performs lock-up. 6.0 V
When CVT does not perform lock-up. 1.0 V
4BRLock-up select
solenoid valveSelector lever in “P” and “N” positions Battery voltage
Wait at least for 5 seconds with the selector lever in
“R”, “D” and “L” positions0 V
5 L CAN-H — —
6 P CAN-L — —
8VBack-up lamp
relaySelector lever in “R” position. 0 V
Selector lever in other positions. Battery voltage
10 R Power supply—Battery voltage
—0 V
11 L Step motor A Within 2 seconds after ignition switch ON, the time measurement by using
the pulse width measurement function (Hi level) of CONSULT-II.*1
CAUTION:
Connect the diagnosis data link cable to the vehicle diagnosis connec-
tor.
*1: A circuit tester cannot be used to test this item.30.0 msec
12 Y Step motor B10.0 msec
13 G ROM assembly — —
14 Y ROM assembly — —
15 G ROM assembly — —

TROUBLE DIAGNOSIS
CVT-57
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CONSULT-II Function (TRANSMISSION)UCS005YI
CONSULT-II can display each diagnostic item using the diagnostic test modes shown below.
FUNCTION
CONSULT-II REFERENCE VALUE
Diagnostic test mode Function Reference page
Work supportThis mode enables a technician to adjust some devices faster and more accurately by
following the indications on CONSULT-II.CVT-59
Self-diagnostic results Self-diagnostic results can be read and erased quickly.CVT-60
Data monitor Input/Output data in the TCM can be read.CVT-64
CAN diagnostic support
monitorThe results of transmit/receive diagnosis of CAN communication can be read.CVT-66
CALIB data Characteristic information for TCM and CVT assembly can be read. —
Function testPerformed by CONSULT-II instead of a technician to determine whether each system
is “OK” or “NG”.—
ECU part number TCM part number can be read. —
Item name Condition Display value (Approx.)
VSP SENSOR
During drivingApproximately matches the speedometer
reading.
ESTM VSP SIG*
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed.
ENG SPEED SIG Engine running Closely matches the tachometer reading.
SEC HYDR SEN “N” position idle 1.0 V
PRI HYDR SEN “N” position idle 0.7 V
AT F T E M P S E NWhen CVT fluid temperature is 20°C (68°F). 2.0 V
When CVT fluid temperature is 80°C (176°F). 1.0 V
VIGN SEN Ignition switch: ON Battery voltage
VEHICLE SPEED During drivingApproximately matches the speedometer
reading.
PRI SPEED During driving (lock-up ON) Approximately matches the engine speed.
SEC SPEED During driving50 X Approximately matches the speed-
ometer reading.
ENG SPEED Engine running Closely matches the tachometer reading.
GEAR RATIO During driving 2.56 - 0.43
ACC PEDAL OPENReleased accelerator pedal - Fully depressed
accelerator pedal0.0/8 - 8.0/8
SEC PRESS “N” position idle 0.8 MPa
PRI PRESS “N” position idle 0.4 MPa
STM STEP During driving−20 step - 180 step
ISOLT1Lock-up OFF 0.0 A
Lock-up ON 0.7 A
ISOLT2Release your foot from the accelerator pedal. 0.8 A
Press the accelerator pedal all the way down. 0.0 A
ISOLT3Secondary pressure low - Secondary pressure
high.0.8 - 0.0 A
SOLMON1Lock-up OFF 0.0 A
Lock-up ON 0.7 A
SOLMON2“N” position idle 0.8 A
When stalled 0.3 - 0.6 A

TROUBLE DIAGNOSIS
CVT-61
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Operation Procedure
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”.
Display shows malfunction experienced since the last erasing
operation.
Display Items List
X: Applicable —: Not applicable
BCIA0031E
Items (CONSULT-
II screen terms)Malfunction is detected when...TCM self-
diagnosisOBD-II (DTC)
Reference
page “TRANS-
MISSION”
with CON-
SULT-IIMIL indicator
lamp*1,
“ENGINE” with
CONSULT-II or
GST
CAN COMM CIR-
CUITWhen TCM is not transmitting or receiving CAN communica-
tion signal for 2 seconds or moreU1000 U1000CVT-68
CONTROL
UNIT(CAN)When detecting error during the initial diagnosis of CAN con-
troller of TCMU1010 U1010CVT-71
STARTER RELAY/
CIRCIf this signal is ON other than in “P” or “N” position, this is
judged to be a malfunction
(And if it is OFF in “P” or “N” position, this is judged to be a
malfunction too)P0615 —CVT-72
BRAKE SW/CIRC When the brake switch does not switch to ON or OFF P0703 —CVT-76
PNP SW/CIRC
PNP switch 1-4 signals input with impossible pattern

PNP switch 3 monitor terminal open or short circuitP0705 P0705CVT-78
AT F T E M P S E N /
CIRCDuring running, the CVT fluid temperature sensor signal volt-
age is excessively high or lowP0710 P0710CVT-85
INPUT SPD SEN/
CIRC
Input speed sensor (primary speed sensor) signal is not
input due to an open circuit

An unexpected signal is input when vehicle is being drivenP0715 P0715CVT-90
VEH 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 runningP0720 P0720CVT-95
ENGINE SPEED
SIG
TCM does not receive the CAN communication signal
from the ECM

Engine speed is too low while drivingP0725 —CVT-101
BELT DAMG Unexpected gear ratio detected P0730 —CVT-103
TCC SOLENOID/
CIRCNormal voltage not applied to solenoid due to open or short
circuitP0740 P0740CVT-105
A/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 onP0744 P0744CVT-110

CVT-90
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Revision: June 20062007 Versa
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)PFP:31935
DescriptionUCS005ZJ

The input speed sensor (primary speed sensor) is included in the control valve assembly.

The input speed sensor (primary speed sensor) detects the primary pulley revolution speed and sends a
signal to the TCM.
CONSULT-II Reference ValueUCS005ZK
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS005ZL

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0715 INPUT SPD SEN/CIRC” with CONSULT-II is detected when TCM does
not receive the proper signal from the sensor.
Possible CauseUCS005ZM

Harness or connectors
(Sensor circuit is open or shorted.)

Input speed sensor (Primary speed sensor)
DTC Confirmation ProcedureUCS005ZN
CAUTION:
Always drive vehicle at a safe speed.
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-II
1. Turn ignition switch ON and select “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
2. Start engine and maintain the following conditions for at least 5
consecutive seconds.
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
Driving location: Driving the vehicle uphill (increased
engine load) will help maintain the driving conditions
required for this test.
3. If DTC is detected, go to CVT-92, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the tachometer reading.
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed.
BCIA0031E

CVT-92
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)
Revision: June 20062007 Versa
TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureUCS005ZP
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “PRI SPEED SEN”.
OK or NG
OK >> GO TO 6.
NG >> GO TO 2.
2. CHECK INPUT SPEED SENSOR (PRIMARY SPEED SENSOR)
1. Start engine.
2. Check voltage between TCM connector terminals.
3. Check the pulse with CONSULT-II or oscilloscope, when vehicle
cruises.
OK or NG
OK >> GO TO 6.
NG - 1 >> Battery voltage is not supplied: GO TO 3.
NG - 2 >> Battery voltage is supplied, but there is a malfunction in
the frequency: GO TO 4.
Terminal Wire color Item Condition Data (Approx.)
38 VInput speed sensor
(Primary speed sen-
sor)When driving [“L” position, 20 km/h (12 MPH)]. 1000 Hz
42 LG Sensor ground Always 0 V
46 O Sensor power— 5.0 V
— 0 V
Item name Condition Display value
PRI SPEED SENDuring driving (lock-up
ON)Approximately matches
the engine speed.
SCIA2278E
Item Connector Terminal Data (Approx.)
TCM E32 46 - 42 5.0 V
Name Condition
Input speed sensor
(Primary speed
sensor)When running at 20 km/h (12 MPH) in “L” position with the
closed throttle position signal OFF, use the CONSULT-II
pulse frequency measuring function.
CAUTION:
Connect the data link connector to the vehicle-side diag-
nosis connector.
Item Connector Terminal NameData
(Approx.)
TCM E32 38Input speed sensor (Primary
speed sensor)1000 Hz
SCIA1915E

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
CVT-105
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DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVEPFP:31940
DescriptionUCS00609

The torque converter clutch solenoid valve is included in the control valve assembly.

The torque converter clutch solenoid valve is activated by the TCM in response to signals sent from the
vehicle speed and accelerator pedal position sensors. Lock-up piston operation will then be controlled.

Lock-up operation, however, is prohibited when CVT fluid temperature is too low.

When the accelerator pedal is depressed (less than 2.0/8) in lock-up condition, the engine speed should
not change abruptly. If there is a big jump in engine speed, there is no lock-up.
CONSULT-II Reference ValueUCS0060A
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS0060B

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0740 TCC SOLENOID/CIRC” with CONSULT-II is detected under the following
conditions.
–TCM detects an improper voltage drop when it tries to operate the solenoid valve.
Possible CauseUCS0060C

Torque converter clutch solenoid valve

Harness or connectors
(Solenoid circuit is open or shorted.)
DTC Confirmation ProcedureUCS0060D
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-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II and wait at least 10 consecutive seconds.
3. If DTC is detected, go to CVT-107, "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value (Approx.)
ISOLT1Lock-up OFF 0.0 A
Lock-up ON 0.7 A
BCIA0031E

DTC P0740 TORQUE CONVERTER CLUTCH SOLENOID VALVE
CVT-107
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TCM terminal data are reference values, measured between each terminal and ground.
Diagnostic ProcedureUCS0060F
1. CHECK INPUT SIGNAL
With CONSULT-II
1. Start engine.
2. Select “MAIN SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle and read out the value of “ISOLT1”.
Without CONSULT-II
1. Start engine.
2. Check voltage between TCM connector terminal and ground.
3. Turn ignition switch OFF.
4. Disconnect TCM connector.
5. Check if there is continuity between the connector terminal and
ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK TORQUE CONVERTER CLUTCH SOLENOID VALVE CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect TCM connector.
3. Check resistance between TCM connector terminal and ground.
OK or NG
OK >> GO TO 5.
NG >> GO TO 3.
Terminal Wire color Item Condition Data (Approx.)
3SBTorque converter
clutch solenoid
valveWhen vehi-
cle cruises in
“D” position.When CVT performs lock-up. 6.0 V
When CVT does not perform lock-up. 1.0 V
Item name Condition Display value (Approx.)
ISOLT1Lock-up OFF 0.0 A
Lock-up ON 0.7 A
SCIA2349E
Name Connector Terminal ConditionVoltage
(Approx.)
To r q u e
converter
clutch sole-
noid valveE31 3 - groundWhen vehi-
cle cruises
in “D” posi-
tionLock-up ON 6.0 V
Lock-up OFF 1.0 V
SCIA7954E
Solenoid valve Connector TerminalResistance
(Approx.)
Torque converter clutch
solenoid valveE31 3 - Ground 5 - 20 Ω
SCIA1970E

CVT-110
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
Revision: June 20062007 Versa
DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)PFP:31940
DescriptionUCS0060H

The torque converter clutch solenoid valve is included in the control valve assembly.

This malfunction is detected when the torque converter clutch does not lock-up as instructed by the TCM.
This is not only caused by electrical malfunction (circuits open or shorted), but also by mechanical mal-
function such as control valve sticking, improper solenoid valve operation, etc.
CONSULT-II Reference ValueUCS0060I
Remarks: Specification data are reference values.
On Board Diagnosis LogicUCS0060J

This is an OBD-II self-diagnostic item.

Diagnostic trouble code “P0744 A/T TCC S/V FNCTN” with CONSULT-II is detected under the following
conditions.
–When CVT cannot perform lock-up even if electrical circuit is good.
–When TCM compares difference value with slip revolution and detects an irregularity.
Possible CauseUCS0060K

Torque converter clutch solenoid valve

Hydraulic control circuit
DTC Confirmation ProcedureUCS0060L
CAUTION:
Always drive vehicle at a safe speed.
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-II
1. Turn ignition switch ON. (Do not start engine.)
2. Select “DATA MONITOR” mode for “TRANSMISSION” with
CONSULT-II.
3. Start engine and maintain the following condition for at least 30
seconds.
ACC PEDAL OPEN: More than 1.0/8
RANGE: “D” position
[Vehicle speed: Constant speed of more than 40 km/h (25
MPH)]
4. If DTC is detected go to C V T- 111 , "
Diagnostic Procedure" .
WITH GST
Follow the procedure “WITH CONSULT-II”.
Item name Condition Display value
ENG SPEED SIG Engine running Closely matches the tachometer reading.
PRI SPEED SEN During driving (lock-up ON) Approximately matches the engine speed.
BCIA0031E

DTC P0744 A/T TCC S/V FUNCTION (LOCK-UP)
CVT-111
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Diagnostic ProcedureUCS0060M
1. CHECK INPUT SIGNALS
With CONSULT-II
1. Start engine.
2. Select “ECU INPUT SIGNALS” in “DATA MONITOR” mode for
“TRANSMISSION” with CONSULT-II.
3. Start vehicle.
4. Check if there is a great difference between “ENG SPEED SIG”
and “PRI SPEED SEN”. (Lock-up ON.)
OK or NG
OK >> GO TO 5.
NG >> GO TO 2.
2. CHECK LINE PRESSURE
Perform line pressure test. Refer to CVT-45, "
LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 3.
NG >> Repair or replace damaged parts. Refer to CVT-46, "
Judgement of Line Pressure Test" .
3. DETECT MALFUNCTIONING ITEM
Check the following:

Torque converter clutch solenoid valve. Refer to CVT-109, "Component Inspection" .

Lock-up select solenoid valve. Refer to CVT-162, "Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK OUTPUT SPEED SENSOR (SECONDARY SPEED SENSOR) SYSTEM AND INPUT SPEED
SENSOR (PRIMARY SPEED SENSOR) SYSTEM
Check output speed sensor (secondary speed sensor) system and input speed sensor (primary speed sensor)
system. Refer to CVT-95, "
DTC P0720 VEHICLE SPEED SENSOR CVT (SECONDARY SPEED SENSOR)" ,
CVT-90, "
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI SPEED SENSOR)" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace damaged parts.
5. CHECK DTC
Perform CVT-110, "
DTC Confirmation Procedure" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 6.
Item name Condition Display value
ENG SPEED SIG Engine runningClosely matches the
tachometer reading.
PRI SPEED SEN During driving (lock-up ON)Approximately matches
the engine speed.
SCIA2279E