2008 NISSAN TEANA check engine

ROAD TEST
TM-149
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
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Check at IdleINFOID:0000000003849082
1.CHECK STARTING THE ENGINE (PART 1)
1. Park vehicle on flat surface.
2. Move selector lever to “P” or “N” position.
3. Turn ignition switch OFF.
4. Turn ignition switch to “START” position.
Is engine started?
YES >> GO TO 2.
NO >> Stop “Road Test”. Refer to TM-123, "
Symptom Table".
2.CHECK STARTING THE ENGINE (PART 2)
1. Turn ignition switch ON.
2. Move selector lever to “D”, “L” or “R” position.
3. Turn ignition switch to “START” position.
Is engine started?
YES >> Stop “Road Test”. Refer to TM-123, "Symptom Table".
NO >> GO TO 3.
3.CHECK “P” POSITION FUNCTION
1. Move selector lever to “P” position.
2. Turn ignition switch OFF.
3. Release parking brake.
4. Push vehicle forward or backward.
5. Apply parking brake.
Does vehicle move forward or backward?
YES >> Refer to TM-123, "Symptom Table". GO TO 4.
NO >> GO TO 4.
4.CHECK “N” POSITION FUNCTION
1. Start engine.
2. Move selector lever to “N” position.
3. Release parking brake.
Does vehicle move forward or backward?
YES >> Refer to TM-123, "Symptom Table". GO TO 5.
NO >> GO TO 5.
5.CHECK SHIFT SHOCK
1. Apply foot brake.
2. Move selector lever to “R” position.
Is there large shock when changing from
“N” to “R” position?
YES >> Refer to TM-123, "Symptom Table". GO TO 6.
NO >> GO TO 6.
6.CHECK “R” POSITION FUNCTION
Release foot brake for several seconds.
Does vehicle creep backward when foot brake is released?
YES >> GO TO 7.
NO >> Refer to TM-123, "
Symptom Table". GO TO 7.
7.CHECK “D” POSITION FUNCTION
Move selector lever to “D” and “L” position and check if vehicle creeps forward.
Does vehicle creep forward in all positions?
YES >> Go to TM-150, "Cruise Test".
NO >> Stop “Road Test”. Refer to TM-123, "
Symptom Table".

TM-150
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
ROAD TEST
Cruise Test
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1.CHECK VEHICLE SPEED WHEN SHIFTING GEARS (PART 1)
1. Drive vehicle for approximately 10 minutes to warm engine oil and CVT fluid up to operating temperature.
2. Park vehicle on flat surface.
3. Move selector lever to “P” position.
4. Start engine.
5. Move selector lever to “D” position.
6. Accelerate vehicle at 2/8 throttle opening and check “Vehicle
Speed When Shifting Gears”.
With CONSULT-III
- Read vehicle speed and engine speed. Refer to TM-174, "Vehi-
cle Speed When Shifting Gears".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Refer to TM-123, "
Symptom Table". GO TO 2.
2.CHECK VEHICLE SPEED WHEN SHIFTING GEARS (PART 2)
1. Park vehicle on flat surface.
2. Move selector lever to “D” position.
3. Accelerate vehicle at 8/8 throttle opening and check “Vehicle
Speed When Shifting Gears”.
With CONSULT-III
- Read vehicle speed and engine speed. Refer to TM-174, "Vehi-
cle Speed When Shifting Gears".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Refer to TM-123, "
Symptom Table". GO TO 3.
3.CHECK SPORT MODE FUNCTION (PART 1)
1. Park vehicle on flat surface.
2. Push sport mode switch.
3. Accelerate vehicle at 2/8 throttle opening and check “Vehicle
Speed When Shifting Gears”.
With CONSULT-III
- Read vehicle speed and engine speed. Refer to TM-174, "Vehi-
cle Speed When Shifting Gears".
Is the inspection result normal?
YES >> GO TO 4.
NO >> Refer to TM-123, "
Symptom Table". GO TO 4.
4.CHECK SPORT MODE FUNCTION (PART 2)
1. Park vehicle on flat surface.
2. Push sport mode switch.CVT fluid operating temperature : 50 – 80°C (122 – 176°F)
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SCIA4366E
SCIA6644E

ROAD TEST
TM-151
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
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3. Accelerate vehicle at 8/8 throttle opening and check “Vehicle
Speed When Shifting Gears”.
With CONSULT-III
- Read vehicle speed and engine speed. Refer to TM-174, "Vehi-
cle Speed When Shifting Gears".
Is the inspection result normal?
YES >> GO TO 5.
NO >> Refer to TM-123, "
Symptom Table". GO TO 5.
5.CHECK “L” POSITION FUNCTION (PART 1)
1. Park vehicle on flat surface.
2. Move selector lever to “L” position.
3. Accelerate vehicle at 2/8 throttle opening and check “Vehicle
Speed When Shifting Gears”.
With CONSULT-III
- Read vehicle speed and engine speed. Refer to TM-174, "Vehi-
cle Speed When Shifting Gears".
Is the inspection result normal?
YES >> GO TO 6.
NO >> Refer to TM-123, "
Symptom Table". GO TO 6.
6.CHECK “L” POSITION FUNCTION (PART 2)
1. Park vehicle on flat surface.
2. Move selector lever to “L” position.
3. Accelerate vehicle at 8/8 throttle opening and check “Vehicle
Speed When Shifting Gears”.
With CONSULT-III
- Read vehicle speed and engine speed. Refer to TM-174, "Vehi-
cle Speed When Shifting Gears".
Is the inspection result normal?
YES >> GO TO 7.
NO >> Refer to TM-123, "
Symptom Table". GO TO 7.
7.CHECK ENGINE BRAKE FUNCTION
Check engine brake.
Does engine braking effectively reduce vehicle speed in
“L” position?
YES >> 1. Stop the vehicle.
2. Perform “Self Diagnostic Results” mode for “TRANSMISSION”.
NO >> Refer to TM-123, "
Symptom Table". Then continue trouble diagnosis.
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TM-152
< ON-VEHICLE MAINTENANCE >[CVT: RE0F09B]
CVT POSITION
CVT POSITION
Inspection and AdjustmentINFOID:0000000003849084
INSPECTION
1. Move selector lever to “P” position, and turn ignition switch ON (engine stop).
2. Check that selector lever can be shifted to other than “P” position when brake pedal is depressed. Also
check that selector lever can be shifted from “P” position only when brake pedal is depressed.
3. Move selector lever and check for excessive effort, sticking, noise or rattle.
4. Check that selector lever stops at each position with the feel of engagement when it is moved through all
the positions. Check that the actual position of selector lever matches the position shown by shift position
indicator and manual lever on the transaxle.
5. The method of operating selector lever to individual positions
correctly should be as shown.
6. When selector button is pressed in “P”, “R”, “N”, “D” or “L” posi-
tion without applying forward/backward force to selector lever,
check button operation for sticking.
7. Check that back-up lamps illuminate only when selector lever is
placed in the “R” position.
8. When in “R” position, check that back-up lamps illuminate even
when the selector lever is pushed toward the “P” position.
CAUTION:
Check the lighting without pressing shift button.
9. Check that back-up lamps do not illuminate when selector lever is pushed toward the “R” position when in
the “P” or “N” position.
CAUTION:
Check the lighting without pressing shift button.
10. Check that the engine can only be started with selector lever in the “P” and “N” positions.
11. Check that transaxle is locked completely in “P” position.
ADJUSTMENT
1. Move selector lever to “ P” position.
CAUTION:
Turn wheels more than 1/4 rotations and apply the park
lock.
2. Loosen the control cable nut (A).
3. Place manual lever (B) to “P” position.
CAUTION:
Never apply any force to manual lever.
4. Tighten the control cable nut. Refer to TM-157, "
Exploded View".
CAUTION:
Fix manual lever when tightening.
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FLUID COOLER SYSTEM
TM-167
< ON-VEHICLE REPAIR >[CVT: RE0F09B]
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InspectionINFOID:0000000003849107
After completing installation, check for engine coolant leakage and check engine coolant level. Refer to CO-8,
"Inspection".

TRANSAXLE ASSEMBLY
TM-169
< REMOVAL AND INSTALLATION >[CVT: RE0F09B]
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3. Remove air breather hose. Refer to TM-164, "Exploded View".
4. Disconnect secondary speed sensor connector. Refer to TM-161, "
Exploded View".
5. Disconnect CVT unit connector.
6. Disconnect air fuel ratio sensor 1 (bank 2). Refer to EM-34, "
Exploded View".
7. Remove crankshaft position sensor (POS). Refer to EM-38, "
Exploded View".
8. Remove CVT fluid charging pipe from transaxle assembly.
9. Remove transaxle assembly fixing bolts with power tool.
10. Remove transaxle assembly from engine assembly with a hoist.
11. Remove fluid cooler hose from transaxle assembly.
INSTALLATION
Note the following, and install in the reverse order of removal.
CAUTION:
Check fitting of dowel pins ( ) when installing transaxle
assembly to engine assembly.
When installing transaxle assembly to the engine assembly, attach
the fixing bolts in accordance with the following.
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Insertion direction Transaxle assembly to engine assemblyEngine assembly to tran-
saxle assembly
Bolt position A B C D
Number of bolts 1 2 2 4
Bolt length mm (in) 55 (2.17) 39 (1.54) 108 (4.25) 40 (1.57)
Tightening torque
N·m (kg-m, ft-lb)74.5 (7.6, 55) 50 (4.3, 31)

TM-170
< REMOVAL AND INSTALLATION >[CVT: RE0F09B]
TRANSAXLE ASSEMBLY
 When using the drive plate location guide (commercial service tool:
31197CA000) (A), set it to the stud bolts which is used to install it
to the torque converter.
 When not using drive plate location guide, rotate torque converter
so that the stud bolt (B) for mounting the drive plate location guide
of torque converter aligns with the mounting position of service
hole.
 Rotate crankshaft so that the hole (A) for inserting drive plate loca-
tion guide of drive plate aligns with the service hole (B).
NOTE:
When not using drive plate location guide, insert stud bolt of torque
converter into the hole (C) of drive plate, aligning the drive plate
hole position and torque converter.
CAUTION:
Be careful not to strike the drive plate when installing the
torque converter stud bolt.
 Align the position of tightening nuts ( ) for drive plate with those
of the torque converter, and temporarily tighten the nuts. Then,
tighten the bolts to the specified torque.
CAUTION:
 When turning crankshaft, turn it clockwise as viewed from the
front of the engine.
 When tightening the nuts for the torque converter after fixing
the crankshaft pulley bolts, confirm the tightening torque of
the crankshaft pulley mounting bolts. Refer to EM-79,
"Exploded View".
 Rotate crankshaft several turns and check that transaxle rotates freely without binding after con-
verter is installed to drive plate.
 Never reuse O-ring.
 Apply petroleum jelly to O-ring.
InspectionINFOID:0000000003849110
INSPECTION BEFORE INSTALLATION
After inserting a torque converter to transaxle assembly, check that
distance (A) is within the reference value limit.
INSPECTION AFTER INSTALLATION
Check the following items.
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: 51 N·m (5.2 kg-m,38 ft-lb)
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B: Scale
C : Straightedge
Distance A : Refer to TM-175, "Torque Converter".
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TM-176
< BASIC INSPECTION >[CVT: RE0F10A]
DIAGNOSIS AND REPAIR WORK FLOW
BASIC INSPECTION
DIAGNOSIS AND REPAIR WORK FLOW
Work FlowINFOID:0000000003806344
INTRODUCTION
The TCM receives signals from the vehicle speed sensor and PNP switch. Then it provides shift control or
lock-up control via CVT solenoid valves.
The TCM also communicates with the ECM by means of signals
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 a malfunction that occurs inter-
mittently rather than continuously. Most intermittent malfunctions are
caused by poor electric connections or improper wiring. In this case,
careful checking of suspected circuits may help prevent the replace-
ment of good parts.
A visual check only may not find the cause of the malfunctions. A
road test with CONSULT-III (or GST) or a circuit tester connected
should be performed. Follow the “DETAILED 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 malfunctions, espe-
cially intermittent ones. Find out what symptoms are present and
under what conditions they occur. A “Diagnostic Work Sheet” as
shown on the example (Refer to TM-177
) should be used.
Start your diagnosis by looking for “conventional” malfunctions first.
This will help troubleshoot driveability malfunctions on an electroni-
cally controlled engine vehicle.
Also check related Service Bulletins.
DETAILED FLOW
1.COLLECT THE INFORMATION FROM THE CUSTOMER
Get the detailed information from the customer about the symptom (the condition and the environment when
the incident/malfunction occurred) using the diagnosis work sheet. Refer to TM-177, "
Diagnostic Work Sheet".
>> GO TO 2.
2.CHECK SYMPTOM 1
Check the following items based on the information obtained from the customer.
 Fail-safe. Refer to TM-283, "
Fail-safe".
 CVT fluid inspection. Refer to TM-304, "
Inspection".
 Line pressure test. Refer to TM-308, "
Inspection and Judgment".
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