NISSAN VERSA 2006 Workshop Service Repair Manual

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-55
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19 R Power supply— Battery voltage
—0 V
20 W Step motor C 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
21 P Step motor D10.0 msec
24 BR Starter relaySelector lever in “N” and “P”positions. Battery voltage
Selector lever in other positions. 0 V
25 B Ground Always 0 V
27 GR PNP switch 1Selector lever in “R”, “N” and “D” positions. 0 V
Selector lever in “P” and “L” positions. Battery voltage
28 YPower supply
(memory back-
up)Always Battery voltage
29 ROutput speed
sensor (Second-
ary speed sen-
sor)When driving [“D” position, 20 km/h (12 MPH)]. 570 Hz
31 LG K-LINE — —
32 YPNP switch 3
(monitor)Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
34 SB PNP switch 2Selector lever in “N”, “D” and “L” positions. 0 V
Selector lever in “P” and “R” positions.10.0 V - Battery
voltage
35 W PNP switch 3Selector lever in “D” and “L” positions. 0 V
Selector lever in “P”, “R” and “N” positions.8.0 V - Battery
voltage
36 W PNP switch 4Selector lever in “R” and “D” positions. 0 V
Selector lever in “P”, “N” and “L” positions.10.0 V - Battery
voltage
37 LTransmission
fluid pressure
sensor A (Sec-
ondary pressure
sensor)and “N” position idle 1.0 V
38 VInput speed sen-
sor (Primary
speed sensor)When driving [“L” position, 20 km/h (12 MPH)]. 1000 Hz Te r m i n a lWire
colorItem Condition Data (Approx.)

CVT-56
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
41 GTransmission
fluid pressure
sensor B (Pri-
mary pressure
sensor)and “N” position idle 0.7 V
42 LG Sensor ground Always 0 V
46 O Sensor power— 5.0 V
— 0 V
47 GCVT fluid tem-
perature sensor When CVT fluid temperature is 20°C (68°F) 2.0 V
When CVT fluid temperature is 80°C (176°F) 1.0 V
48 B Ground Always 0 V TerminalWire
colorItem Condition Data (Approx.)

TROUBLE DIAGNOSIS
CVT-57
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CVT
Revision: June 20062007 Versa
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

CVT-58
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
SOLMON3“N” position idle 0.6 - 0.7 A
When stalled 0.4 - 0.6 A
INH SW3MSelector lever in “D” and “L” positions ON
Selector lever in “P”, “R” and “N” positions OFF
INH SW4Selector lever in “R” and “D” positions ON
Selector lever in “P”, “N” and “L” positions OFF
INH SW3Selector lever in “D” and “L” positions ON
Selector lever in “P”, “R” and “N” positions OFF
INH SW2Selector lever in “N”, “D” and “L” positions ON
Selector lever in “P” and “R” positions OFF
INH SW1Selector lever in “R”, “N” and “D” positions ON
Selector lever in “P” and “L” positions OFF
BRAKE SWDepressed brake pedal ON
Released brake pedal OFF
FULL SWFully depressed accelerator pedal ON
Released accelerator pedal OFF
IDLE SWReleased accelerator pedal ON
Fully depressed accelerator pedal OFF
SPORT MODE SWWhile pushing overdrive cancel switch ON
Other conditions OFF
INDDRNGSelector lever in “D” position ON
Selector lever in other positions OFF
INDLRNGSelector lever in “L” position ON
Selector lever in other positions OFF
INDNRNGSelector lever in “N” position ON
Selector lever in other positions OFF
INDRRNGSelector lever in “R” position ON
Selector lever in other positions OFF
INDPRNGSelector lever in “P” position ON
Selector lever in other positions OFF
SMCOIL D
During driving Changes ON ⇔ OFF. SMCOIL C
SMCOIL B
SMCOIL A
LUSEL SOL OUTSelector lever in “P” and “N” positions ON
Wait at least for 5 seconds with the selector
lever in “R”, “D” and “L” positionsOFF
STRTR RLY OUTSelector lever in “P” and “N” positions ON
Selector lever in other positions OFF
STRTR RLY MONSelector lever in “P” and “N” positions ON
Selector lever in other positions OFF
RANGESelector lever in “N” or “P” position. N·P
Selector lever in “R” position. R
Selector lever in “D” position. D
Selector lever in “L” position. L Item name Condition Display value (Approx.)

TROUBLE DIAGNOSIS
CVT-59
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CVT
Revision: June 20062007 Versa
*: Models without ABS does not indicate.
CONSULT-II SETTING PROCEDURE
Refer to GI-38, "CONSULT-II Start Procedure" .
WORK SUPPORT MODE
Display Item List
Engine Brake Adjustment
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
2. Touch “ENGINE BRAKE ADJ”.
3. Touch “START”.
4. Set “ENGINE BRAKE LEVEL” by touching “UP” or “DOWN”.
5. Turn ignition switch OFF, wait at least 5 seconds and then turn
ignition switch ON.
6. Engine brake level set is completed.
Item name Description
ENGINE BRAKE ADJ. The engine brake level setting can be canceled.
CONFORM CVTF DETERIORTN The CVT fluid deterioration level can be checked.
BCIA0031E
SCIA4287E
SCIA4288E
“ENGINE BRAKE LEVEL”
0: Initial set value (Engine brake level control is
activated)
OFF: Engine brake level control is deactivated.
SAT9 3 4J

CVT-60
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
CAUTION:
Mode of “+1” “0” “-1” “-2” “OFF” can be selected by pressing the “UP” “DOWN” on CONSULT-II
screen. However, do not select mode other than “0” and “OFF”. If the “+1” or “-1” or “-2” is
selected, that might cause the irregular driveability.
Check CVT Fluid Deterioration Date
1. Touch “WORK SUPPORT” on “SELECT DIAG MODE” screen.
2. Touch “CONFORM CVTF DETERIORTN”.
3. Check “CVTF DETERIORATION DATE”.
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-37, "DIAGNOSTIC WORKSHEET" .
Reference pages are provided following the items.
BCIA0031E
SCIA4287E
“CVTF DETERIORATION DATE”
More than 210000:
It is necessary to change CVT fluid.
Less than 210000:
It is not necessary to change CVT fluid.
SCIA4289E
SCIA4290E

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-62
TROUBLE DIAGNOSIS
Revision: June 20062007 Versa
L/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 valueP0745 P0745CVT-113
PRS CNT SOL/A
FCTNUnexpected gear ratio was detected in the LOW side due to
excessively low line pressureP0746 P0746CVT-118
PRS CNT SOL/B
FCTNSecondary pressure is too high or too low compared with the
commanded value while drivingP0776 P0776CVT-121
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 valueP0778 P0778CVT-124
TR PRS SENS/A
CIRCSignal voltage of the transmission fluid pressure sensor A
(secondary pressure sensor) is too high or too low while driv-
ingP0840 P0840CVT-129
PRESS SEN/
FNCTNCorrelation between the values of the transmission fluid
pressure sensor A (secondary pressure sensor) and the
transmission fluid pressure sensor B (primary pressure sen-
sor) is out of specificationP0841 —CVT-134
TR PRS SENS/B
CIRCSignal voltage of the transmission fluid pressure sensor B
(primary pressure sensor) is too high or too low while drivingP0845 P0845CVT-137
SEC/PRESS
DOWNSecondary fluid pressure is too low compared with the com-
manded value while drivingP0868 —CVT-142
TCM-POWER
SUPPLY

When the power supply to the TCM is cut OFF, for exam-
ple 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-145
TP SEN/CIRC A/TTCM does not receive the proper accelerator pedal position
signals (input by CAN communication) from ECMP1705 —CVT-150
ESTM VEH SPD
SIG*2

CAN communication with the ABS actuator and the elec-
tric 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 signalP1722 —CVT-152
CVT SPD SEN/
FNCTNA 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
INPUT SPD SEN/CIRC” or the “P0725 ENGINE SPEED
SIG“ is displayed with the DTC at the same timeP1723 —CVT-154
ELEC TH CON-
TROLThe electronically controlled throttle for ECM is malfunction-
ingP1726 —CVT-156
LU-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 valueP1740 P1740CVT-158
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

TROUBLE DIAGNOSIS
CVT-63
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CVT
Revision: June 20062007 Versa
*1: Refer to CVT-33, "Malfunction Indicator Lamp (MIL)" .
*2: Models without ABS does not indicate.
How to Erase Self-diagnostic Results
1. Touch “SELF-DIAG RESULTS” on “SELECT DIAG MODE”.
2. Touch “ERASE”. (The self-diagnostic results will be erased.)
L/PRESS CON-
TROLTCM detects the unexpected line pressure P1745 —CVT-163
STEP MOTR
CIRCEach coil of the step motor is not energized properly due to
an open or a shortP1777 P1777CVT-164
STEP MOTR/FNCThere is a great difference between the number of steps for
the stepping motor and for the actual gear ratioP1778 P1778CVT-168
NO DTC IS
DETECTED: FUR-
THER TESTING
MAY BE
REQUIREDNo NG item has been detected X X — 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
BCIA0031E
SCIA4614E