2006 NISSAN VERSA check engine

CVT-2Revision: June 20062007 Versa HOW TO ERASE DTC (WITH GST) ................... 32
Malfunction Indicator Lamp (MIL) ........................... 33
DESCRIPTION .................................................... 33
TROUBLE DIAGNOSIS ............................................ 34
DTC Inspection Priority Chart ................................. 34
Fail-safe .................................................................. 34
FAIL-SAFE FUNCTION ....................................... 34
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 35
INTRODUCTION ................................................. 35
WORK FLOW ...................................................... 36
DIAGNOSTIC WORKSHEET .............................. 37
CVT Electrical Parts Location ................................. 40
Circuit Diagram ....................................................... 42
Inspections before Trouble Diagnosis .................... 43
CVT FLUID CHECK ............................................ 43
STALL TEST ........................................................ 43
LINE PRESSURE TEST ...................................... 45
Road Test ............................................................... 46
DESCRIPTION .................................................... 46
CONSULT-II OPERATION PROCEDURE ........... 47
Check before Engine Is Started .............................. 49
Check at Idle ........................................................... 49
Cruise Test .............................................................. 50
Vehicle Speed When Shifting Gears ...................... 53
TCM Input/Output Signal Reference Values ........... 54
TCM TERMINAL CONNECTOR LAYOUT .......... 54
TCM INSPECTION TABLE .................................. 54
CONSULT-II Function (TRANSMISSION) .............. 57
FUNCTION .......................................................... 57
CONSULT-II REFERENCE VALUE ..................... 57
CONSULT-II SETTING PROCEDURE ................ 59
WORK SUPPORT MODE ................................... 59
SELF-DIAGNOSTIC RESULT MODE ................. 60
DATA MONITOR MODE ...................................... 64
CAN DIAGNOSTIC SUPPORT MONITOR
MODE .................................................................. 66
Diagnostic Procedure without CONSULT-II ............ 67
OBD-II SELF-DIAGNOSTIC PROCEDURE
(WITH GST) ......................................................... 67
DTC U1000 CAN COMMUNICATION LINE .............. 68
Description .............................................................. 68
On Board Diagnosis Logic ...................................... 68
Possible Cause ....................................................... 68
DTC Confirmation Procedure ................................. 68
WITH CONSULT-II .............................................. 68
WITH GST ........................................................... 68
Wiring Diagram — CVT — CAN ............................. 69
Diagnostic Procedure ............................................. 70
DTC U1010 TRANSMISSION CONTROL MODULE
(CAN) ......................................................................... 71
Description .............................................................. 71
On Board Diagnosis Logic ...................................... 71
Possible Cause ....................................................... 71
DTC Confirmation Procedure ................................. 71
WITH CONSULT-II .............................................. 71
WITH GST ........................................................... 71
Diagnostic Procedure ............................................. 71
DTC P0615 START SIGNAL CIRCUIT ..................... 72Description ..............................................................72
CONSULT-II Reference Value .................................72
On Board Diagnosis Logic ......................................72
Possible Cause .......................................................72
DTC Confirmation Procedure ..................................72
WITH CONSULT-II ...............................................72
Wiring Diagram — CVT — STSIG ..........................73
Diagnostic Procedure ..............................................74
DTC P0703 STOP LAMP SWITCH CIRCUIT ............76
Description ..............................................................76
CONSULT-II Reference Value .................................76
On Board Diagnosis Logic ......................................76
Possible Cause .......................................................76
DTC Confirmation Procedure ..................................76
WITH CONSULT-II ...............................................76
Diagnostic Procedure ..............................................77
DTC P0705 PARK/NEUTRAL POSITION SWITCH ...78
Description ..............................................................78
CONSULT-II Reference Value .................................78
On Board Diagnosis Logic ......................................78
Possible Cause .......................................................78
DTC Confirmation Procedure ..................................78
WITH CONSULT-II ...............................................79
WITH GST ...........................................................79
Wiring Diagram — CVT — PNP/SW .......................80
Diagnostic Procedure ..............................................82
Component Inspection ............................................84
PNP SWITCH ......................................................84
DTC P0710 CVT FLUID TEMPERATURE SENSOR
CIRCUIT ....................................................................85
Description ..............................................................85
CONSULT-II Reference Value .................................85
On Board Diagnosis Logic ......................................85
Possible Cause .......................................................85
DTC Confirmation Procedure ..................................85
WITH CONSULT-II ...............................................85
WITH GST ...........................................................85
Wiring Diagram — CVT — FTS ..............................86
Diagnostic Procedure ..............................................87
Component Inspection ............................................89
CVT FLUID TEMPERATURE SENSOR ..............89
DTC P0715 INPUT SPEED SENSOR CIRCUIT (PRI
SPEED SENSOR) .....................................................90
Description ..............................................................90
CONSULT-II Reference Value .................................90
On Board Diagnosis Logic ......................................90
Possible Cause .......................................................90
DTC Confirmation Procedure ..................................90
WITH CONSULT-II ...............................................90
WITH GST ...........................................................90
Wiring Diagram — CVT — PRSCVT ......................91
Diagnostic Procedure ..............................................92
DTC P0720 VEHICLE SPEED SENSOR CVT (SEC-
ONDARY SPEED SENSOR) .....................................95
Description ..............................................................95
CONSULT-II Reference Value .................................95
On Board Diagnosis Logic ......................................95
Possible Cause .......................................................95
DTC Confirmation Procedure ..................................95

CVT-5
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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

PRECAUTIONS
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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
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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-16
CVT FLUID
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CVT FLUIDPFP:KLE50
Checking CVT FluidUCS005XN
FLUID LEVEL CHECK
Fluid level should be checked with the fluid warmed up to 50 to 80°C (122 to 176°F).
1. Check for fluid leakage.
2. With the engine warmed up, drive the vehicle to warm up the
CVT fluid. When ambient temperature is 20°C (68°F), it takes
about 10 minutes for the CVT fluid to warm up to 50 to 80°C
(122 to 176°F).
3. Park the vehicle on a level surface and set the parking brake.
4. With engine at idle, while depressing brake pedal, move the
selector lever throughout the entire shift range and return it to
the “P” position.
5. Press the tab on the CVT fluid level gauge to release the lock
and pull out the CVT fluid level gauge from the CVT fluid charg-
ing pipe.
6. Wipe fluid off the CVT fluid level gauge. Then rotate the CVT
fluid level gauge 180° and re-insert it into the CVT charging pipe
as far as it will go.
CAUTION:
Always use lint free paper towels to wipe fluid off the CVT
fluid level gauge.
7. Remove the CVT fluid level gauge and check that the fluid level
is within the specified range as shown. If the fluid level is at or
below the low side of the range, add the necessary specified
NISSAN CVT fluid through the CVT charging pipe.
CAUTION:

Only use specified NISSAN CVT fluid.

Do not overfill the CVT.
8. Install the CVT fluid level gauge to the CVT fluid charging pipe until it locks.
CAUTION:
When CVT fluid level gauge is installed into the CVT fluid charging pipe, make sure that the CVT
fluid level gauge is securely locked in place.
SM A14 6B
SCIA1933E
SCIA1931E
Fluid grade: Refer to MA-11, "Fluids and Lubri-
cants" .
SCIA1932E

CVT FLUID
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FLUID CONDITION CHECK
Changing CVT FluidUCS005XO
1. Warm up CVT fluid by driving the vehicle for 10 minutes.

: Vehicle front

Radiator (2)

CVT fluid cooler hose [inlet side (3)]

Transaxle assembly (4)
2. Drain CVT fluid from CVT fluid cooler hose [outlet side (1)] and
refill with new specified NISSAN CVT fluid in the CVT fluid
charging pipe with the engine running at idle speed.
CAUTION:
Only use the specified NISSAN CVT fluid.
3. Refill until new CVT fluid comes out from CVT fluid cooler hose [outlet side (1)].
NOTE:
About 30 to 50% extra fluid will be required for this procedure.
4. Check fluid level and condition. Refer to CVT-16, "
Checking CVT Fluid" .
CAUTION:
Delete CVT fluid deterioration date with CONSULT-II after changing CVT fluid. Refer to CVT-60,
"Check CVT Fluid Deterioration Date" .
Fluid status Conceivable cause Required operation
Varnished (viscous
varnish state)Clutch, brake
scorchedReplace the CVT fluid and check the
CVT main unit and the vehicle for
malfunctions (wire harness, cooler
pipes, etc.)
Milky white or
cloudyWater in the fluid Replace the CVT fluid and check for
places where water is getting in.
Large amount of
metal powder mixed
in fluidUnusual wear of
sliding parts within
CVTReplace the CVT fluid and check for
improper operation of the CVT.
ATA0022D
Fluid capacity and grade: Refer to MA-11, "Fluids
and Lubricants" .SCIA6088E

ON BOARD DIAGNOSTIC (OBD) SYSTEM
CVT-33
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Malfunction Indicator Lamp (MIL)UCS005Y4
DESCRIPTION
The MIL is located on the instrument panel.
1. The MIL will light up when the ignition switch is turned ON with-
out the engine running. This is a bulb check.

If the MIL does not light up, refer to DI-24, "WAR NIN G
LAMPS" , or see EC-592, "MIL AND DATA LINK CONNEC-
TOR" .
2. When the engine is started, the MIL should go off.
If the MIL remains on, the on board diagnostic system has
detected an engine system malfunction.
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TROUBLE DIAGNOSIS
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CVT Lock-up Select Solenoid
If an unexpected signal is sent from the solenoid to the TCM, the CVT lock-up select solenoid is turned OFF to
cancel the lock-up.
TCM Power Supply (Memory Back-up)
Transaxle assembly is protected by limiting the engine torque when the memory back-up power supply (for
controlling) from the battery is not supplied to TCM. Normal statues is restored when turning the ignition switch
OFF to ON after the normal power supply.
How to Perform Trouble Diagnosis for Quick and Accurate RepairUCS005Y7
INTRODUCTION
The TCM receives a signal from the vehicle speed sensor, PNP switch and provides shift control or lock-up
control via CVT solenoid valves.
The TCM also communicates with the ECM by means of a signal
sent from sensing elements used with the OBD-related parts of the
CVT system for malfunction-diagnostic purposes. The TCM is capa-
ble of diagnosing malfunctioning parts while the ECM can store mal-
functions in its memory.
Input and output signals must always be correct and stable in the
operation of the CVT system. The CVT system must be in good
operating condition and be free of valve seizure, solenoid valve mal-
function, etc.
It is much more difficult to diagnose an error that occurs intermit-
tently rather than continuously. Most intermittent errors are caused
by poor electric connections or improper wiring. In this case, careful
checking of suspected circuits may help prevent the replacement of
good parts.
A visual check only may not find the cause of the errors. A road test
with CONSULT-II (or GST) or a circuit tester connected should be
performed. Follow the CVT-36, "
WORK FLOW" .
Before undertaking actual checks, take a few minutes to talk with a
customer who approaches with a driveability complaint. The cus-
tomer can supply good information about such errors, especially
intermittent ones. Find out what symptoms are present and under
what conditions they occur. A “DIAGNOSTIC WORKSHEET” as
shown on the example (Refer to CVT-37
) should be used.
Start your diagnosis by looking for “conventional” errors first. This will
help troubleshoot driveability errors on an electronically controlled
engine vehicle.
Also check related Service bulletins.
SAT6 3 1IB
SAT6 3 2I
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