TROUBLE DIAGNOSIS FOR SYMPTOMS
AT-205
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Revision: June 20062007 Versa
8. CHECK SYMPTOM
Check again. Refer to AT- 5 9 , "
Check at Idle" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 9.
9. CHECK TCM
1. Check TCM input/output signals. Refer to AT- 7 8 , "
TCM Terminals and Reference Value" .
2. If NG, recheck TCM pin terminals for damage or loose connection with harness connector.
OK or NG
OK >>INSPECTION END
NG >> Repair or replace damaged parts.
Vehicle Does Not Creep Forward in “D”, “2” or “1” Position UCS005V2
SYMPTOM:
Vehicle does not creep forward when selecting “D”, “2” or “1” position.
DIAGNOSTIC PROCEDURE
1. CHECK A/T FLUID LEVEL
Check A/T fluid level. Refer to AT- 1 6 , "
Checking A/T Fluid" .
OK or NG
OK >> GO TO 2.
NG >> Refill ATF.
2. CHECK LINE PRESSURE
Check line pressure at idle with selector lever in “D” position. Refer to AT-56, "
LINE PRESSURE TEST" .
OK or NG
OK >> GO TO 4.
NG >> GO TO 3.
3. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following items:
–Valves to control line pressure (Pressure regulator valve, pressure modifier valve, pilot valve and pilot fil-
ter)
–Line pressure solenoid valve
3. Disassemble A/T. Refer to AT- 2 6 8 , "
Disassembly" .
4. Check the following item:
–Oil pump assembly. Refer to AT-289, "Oil Pump" .
OK or NG
OK >> GO TO 4.
NG >> Repair or replace damaged parts.
4. CHECK STALL REVOLUTION
Check stall revolution with selector lever in “D” position. Refer to AT-53, "
STALL TEST" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 5.
AT-222
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 20062007 Versa
2. CHECK PNP SWITCH CIRCUIT
Without CONSULT-II
1. Turn ignition switch ON. (Do not start engine.)
2. Check voltage between TCM connector terminals and ground
while moving selector lever through each position. Refer to AT-
98, "Wiring Diagram — AT — PNP/SW" .
B: Battery voltage
0: 0V
OK or NG
OK >> GO TO 3
NG >> Check PNP switch. Refer to AT - 1 9 1 , "
PNP SWITCH" .
3. CHECK A/T POSITION
Check A/T position. Refer to AT-234, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 4.
NG >> Adjust A/T position. Refer to AT- 2 3 3 , "
Adjustment of A/T Position" .
4. CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT-107,
"DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" and/or AT-166, "DTC VEHICLE
SPEED SENSOR MTR" .
OK or NG
OK >> GO TO 5.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and/or vehicle speed sensor·MTR
circuits.
5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
Fluid Condition Check" .
OK or NG
OK >> GO TO 7.
NG >> GO TO 6.
Selector lever positionTerminal
36 35 34 27 26
“P”, “N” B 0 0 0 0
“R” 0B000
“D” 0 0 B 0 0
“2” 0 0 0 B 0
“1” 0 0 0 0 B
SCIA7162E
AT-226
TROUBLE DIAGNOSIS FOR SYMPTOMS
Revision: June 20062007 Versa
5. CHECK A/T POSITION
Check A/T position. Refer to AT-234, "
Checking of A/T Position" .
OK or NG
OK >> GO TO 6.
NG >> Adjust A/T position. Refer to AT- 2 3 3 , "
Adjustment of A/T Position" .
6. CHECK VEHICLE SPEED SENSOR·A/T AND VEHICLE SPEED SENSOR·MTR CIRCUIT
Check vehicle speed sensor·A/T (revolution sensor) and vehicle speed sensor·MTR circuit. Refer to AT-107,
"DTC P0720 VEHICLE SPEED SENSOR·A/T (REVOLUTION SENSOR)" and/or AT-166, "DTC VEHICLE
SPEED SENSOR MTR" .
OK or NG
OK >> GO TO 7.
NG >> Repair or replace vehicle speed sensor·A/T (revolution sensor) and/or vehicle speed sensor·MTR
circuits.
7. CHECK ACCELERATOR PEDAL POSITION SENSOR
Check accelerator pedal position sensor. Refer to EC-532, "
DTC P2138 APP SENSOR" .
OK or NG
OK >> GO TO 8.
NG >> Repair or replace accelerator pedal position sensor.
8. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT-257, "
Components" .
2. Check A/T fluid condition. Refer to AT- 5 3 , "
Fluid Condition Check" .
OK or NG
OK >> GO TO 10.
NG >> GO TO 9.
9. DETECT MALFUNCTIONING ITEM
1. Remove control valve assembly. Refer to AT-242, "
Control Valve Assembly and Accumulators" .
2. Check the following.
–Shift valve A
–Overrun clutch solenoid valve
3. Disassemble A/T. Refer to AT-268, "
Disassembly" .
4. Check the following.
–Overrun clutch assembly. Refer to AT-320, "Forward and Overrun Clutches" .
–Low & reverse brake assembly. Refer to AT-327, "Low & Reverse Brake" .
OK or NG
OK >> GO TO 10.
NG >> Repair or replace damaged parts.
10. CHECK SYMPTOM
Check again. Refer to AT-65, "
Cruise Test — Part 3" .
OK or NG
OK >>INSPECTION END
NG >> GO TO 11.
ON-VEHICLE SERVICE
AT-245
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Revision: June 20062007 Versa
Inspection
Inspect the sliding surfaces of each accumulator piston and
transaxle case, and replace if damaged or dented.
(1): Servo release accumulator piston
(2): N-D accumulator piston
Inspect the sliding surfaces of manual valve and valve body, and
replace if damaged or dented.
Inspect each return spring, and replace if damaged, deformed or
worn. Refer to AT-380, "
Accumulator" for free length (L1 ) and
length (L
2 ).
(1): Return spring (Servo release accumulator)
(2): Return spring (N-D accumulator)
CAUTION:
Do not remove spring retainer (3).
Installation
Installation is in the reverse order of removal.
CAUTION:
Completely remove all moisture, oil and old gasket from the oil pan gasket mounting surface of
transaxle case and oil pan.
Do not reuse O-rings, lip seals, oil pan gasket and oil pan bolts.
Apply ATF to manual valve, O-rings, lip seals and sliding surfaces of the transaxle case.
NOTE:
Set manual shaft in “N” position, then align manual plate (1) with
groove in manual valve (2).
After installing control valve assembly to transaxle case, make
sure that selector lever can be moved to all positions.
After completing installation, check for A/T fluid leakage and A/T
fluid level. Refer to AT- 1 6 , "
Checking A/T Fluid" .
WCIA0652E
SCIA6955E
SCIA7090E
RADIATOR
CO-13
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Revision: June 20062007 Versa
Checking Radiator CapEBS00T7E
Check valve seat of radiator cap.
–Check if valve seat is swollen to the extent that the edge of the
plunger cannot be seen when watching it vertically from the top.
–Check if valve seat has no soil and damage.
Pull negative-pressure valve to open it, and make sure that it is
completely closed when released.
–Make sure that there is no dirt or damage on the valve seat of
radiator cap negative-pressure valve.
–Make sure that the valve operates properly in the opening and
closing conditions.
Check radiator cap relief pressure using Tool.
–When connecting the radiator cap to the tester, apply water or
coolant to the cap seal surface.
–Replace the radiator cap if there is an abnormality in the nega-
tive-pressure valve, or if the open-valve pressure is outside of
the standard values.
Replace radiator cap if there it does not comply to specifications to the above three checks.
CAUTION:
When installing radiator cap, thoroughly wipe out the radiator filler neck to remove any waxy residue
or foreign material.
Checking RadiatorEBS00T7F
Check radiator for mud or clogging. If necessary, clean radiator as follows.
Be careful not to bend or damage radiator fins.
When radiator is cleaned without removal, remove all surrounding parts such as cooling fan, radiator
shroud and horns. Then tape harness and connectors to prevent water from entering.
1. Apply water by hose to the back side of the radiator core vertically downward.
2. Apply water again to all radiator core surface once per minute.
3. Stop washing if any stains no longer flow out from radiator.
4. Blow air into the back side of radiator core vertically downward.
Use compressed air lower than 490 kPa (4.9 bar, 5 kg/cm2 , 71 psi) and keep distance more than 30 cm
(11.8 in).
PBIC2816E
SM A96 7B
Tool number : EG17650301 (J-33984-A)
Standard: 78 – 98 kPa (0.78 - 0.98 bar, 0.8 – 1.0 kg/cm
2 ,
11 – 14 psi)
Limit: 59 kPa (0.59 bar, 0.6 kg/cm
2 , 9 psi)
WBIA0570E
CO-18Revision: June 2006
THERMOSTAT
2007 Versa
THERMOSTATPFP:21200
ComponentsEBS00U6H
Removal and InstallationEBS00U6I
REMOVAL
1. Drain engine coolant. Refer to CO-8, "DRAINING ENGINE COOLANT" .
2. Remove water inlet.
3. Remove thermostat.
4. Remove water pump. Refer to CO-17, "
WAT ER PUM P" .
5. Remove thermostat housing.
INSPECTION AFTER REMOVAL
Place a thread (A) so that it is caught in the valves of thermostat
(1). Immerse fully in a container (B) filled with water. Heat while
stirring.
The valve opening temperature is the temperature at which the
valve opens and falls from the thread.
Continue heating. Check the full open valve lift amount.
After checking the maximum valve lift amount, lower the water
temperature and check the valve closing temperature.
1. Thermostat housing 2. Water hose (models with oil cooler) 3. Radiator hose (lower)
4. Water inlet 5. Thermostat 6. Rubber ring
7. Gasket A. To oil cooler B. To radiator
Engine front
PBIC4485E
PBIC3314J
CVT-5
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CVT
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
TROUBLE DIAGNOSIS
CVT-43
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Revision: June 20062007 Versa
Inspections before Trouble DiagnosisUCS005YB
CVT FLUID CHECK
Fluid Leakage and Fluid Level Check
Inspect for fluid leakage and check the fluid level. Refer to CVT-16, "Checking CVT Fluid" .
Fluid Condition Check
Inspect the fluid condition.
STALL TEST
Stall Test Procedure
1. Inspect the amount of engine oil. Replenish the engine oil if necessary.
2. Drive for about 10 minutes to warm up the vehicle so that the
CVT fluid temperature is 50 to 80°C (122 to 176°F). Inspect the
amount of CVT fluid. Replenish if necessary.
3. Securely engage the parking brake so that the tires do not turn.
4. Install a tachometer where it can be seen by driver during test.
It is good practice to mark the point of specified engine
rpm on indicator.
5. Start engine, apply foot brake, and place selector lever in “D”
position.
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 harnesses,
cooler pipes, etc.)
Milky white or
cloudyWater in the fluidReplace the CVT fluid and check for
places where water is getting in.
Large amount of
metal powder mixed
inUnusual wear of
sliding parts within
CVTReplace the CVT fluid and check for
improper operation of the CVT.
SAT6 3 8A
SAT6 4 7B
SAT5 1 3G
SAT7 7 5B