gear switch NISSAN TEANA 2008 Workshop Manual

TM-228
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0730 BELT DAMAGE
P0730 BELT DAMAGE
DescriptionINFOID:0000000003806403
TCM selects the gear ratio using the engine load (throttle position), the primary pulley revolution speed, and
the secondary pulley revolution speed as input signals. Then it changes the operating pressure of the primary
pulley and the secondary pulley and changes the groove width of the pulley.
DTC LogicINFOID:0000000003806404
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Make sure that output voltage of CVT fluid temperature sensor is within the range specified below.
4. Start engine and maintain the following conditions for at least 30 consecutive seconds.
Is
“P0730 BELT DAMG” detected?
YES >> Go to TM-228, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806405
1.CHECK DTC
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Self Diagnostic Results” mode for “TRANSMISSION”.
Are any DTC displayed?
YES - 1 (DTC for “P0730 BELT DAMG” is displayed)>>Replace the transaxle assembly. Refer to TM-332,
"Exploded View".
YES - 2 (DTC except for “P0730 BELT DAMG” is displayed)>>Check the DTC detected item. Refer to TM-
204, "CONSULT-III Function (TRANSMISSION)".
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0730 BELT DAMGUnexpected gear ratio is de-
tected.Transaxle assembly
ATF TEMP SEN : 1.0 – 2.0 V
If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid)
Start test from 0 km/h (0 MPH)
Constant acceleration : Keep 30 sec or more
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

TM-236
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE PRESSURE
SOLENOID VALVE)
P0746 PRESSURE CONTROL SOLENOID A PERFORMANCE (LINE
PRESSURE SOLENOID VALVE)
DescriptionINFOID:0000000003806419
The pressure control solenoid valve A (line pressure solenoid valve) regulates the oil pump discharge pres-
sure to suit the driving condition in response to the signal sent from the TCM.
DTC LogicINFOID:0000000003806420
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Start engine and maintain the following conditions for at least 10 consecutive seconds. Test start from 0
km/h (0 MPH).
With GST
Follow the procedure “With CONSULT-III”.
Is
“P0746 PRS CNT SOL/A FCTN” detected?
YES >> Go to TM-236, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806421
1.CHECK LINE PRESSURE
Perform line pressure test. Refer to TM-308, "
Inspection and Judgment".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts. Refer to TM-308, "
Inspection and Judgment".
2.CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)
Check pressure control solenoid valve A (line pressure solenoid valve). Refer to TM-237, "
Component Inspec-
tion [Pressure Control Solenoid Valve A (Line Pressure Solenoid Valve)]".
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0746 PRS CNT SOL/A FCTNUnexpected gear ratio was de-
tected in the low side due to ex-
cessively low line pressure. Line pressure control system
 Output speed sensor (sec-
ondary speed sensor)
 Input speed sensor (primary
speed sensor)
ATF TEMP SEN : 1.0 − 2.0 V
ACC PEDAL OPEN : More than 1.0/8
RANGE : “D” position
VEHICLE SPEED : 10 km/h (6 MPH) More than
Driving location : Driving the vehicle uphill (increased engine load) will help maintain the
driving conditions required for this test.

P0841 PRESSURE SENSOR FUNCTION
TM-245
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
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P0841 PRESSURE SENSOR FUNCTION
DescriptionINFOID:0000000003806439
Using the engine load (throttle position), the primary pulley revolution speed, and the secondary pulley revolu-
tion speed as input signals, TCM changes the operating pressure of the primary pulley and the secondary pul-
ley and changes the groove width of the pulley to control the gear ratio.
DTC LogicINFOID:0000000003806440
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Start engine and maintain the following conditions for at least 12 consecutive seconds.
Is
“P0841 PRESS SEN/FNCTN” detected?
YES >> Go to TM-245, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806441
1.CHECK LINE PRESSURE
Perform line pressure test. Refer to TM-308, "
Inspection and Judgment".
Is the inspection result normal?
YES >> GO TO 2.
NO >> Repair or replace damaged parts. Refer to TM-308, "
Inspection and Judgment".
2.CHECK TRANSMISSION FLUID PRESSURE SENSOR A (SECONDARY PRESSURE SENSOR) SYS-
TEM
Check transmission fluid pressure sensor A (secondary pressure sensor) system. Refer to TM-242, "
Descrip-
tion".
Is the inspection result normal?
YES >> GO TO 3.
NO >> Repair or replace damaged parts.
3.CHECK PRESSURE CONTROL SOLENOID VALVE A (LINE PRESSURE SOLENOID VALVE)
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P0841 PRESS SEN/FNCTNSecondary pressure became
higher than line pressure. Transmission fluid pressure
sensor A (secondary pres-
sure sensor)
 Harness or connectors
(Sensor circuit is open or
shorted.)
VEHICLE SPEED : 40 km/h (25 MPH) More than
RANGE : “D” position

P1723 CVT SPEED SENSOR FUNCTION
TM-255
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
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P1723 CVT SPEED SENSOR FUNCTION
DescriptionINFOID:0000000003806458
The vehicle speed sensor CVT [output speed sensor (secondary speed sensor)] detects the revolution of
parking gear and generates a pulse signal. The pulse signal is sent to the TCM, which converts it into vehicle
speed.
The input speed sensor (primary speed sensor) detects the primary pulley revolution speed and sends the sig-
nal to the TCM.
DTC LogicINFOID:0000000003806459
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Always drive vehicle at a safe speed.
NOTE:
If “DTC CONFIRMATION PROCEDURE” has been previously performed, always turn ignition switch
OFF. Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Start engine and maintain the following conditions for at least 5 consecutive seconds.
Is
“P1723 CVT SPD SEN/FNCTN” detected?
YES >> Go to TM-255, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806460
1.CHECK STEP MOTOR FUNCTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Self Diagnostic Results” mode for “TRANSMISSION”.
Is
“P1778 STEP MOTR/FNC” detected?
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P1723 CVT SPD SEN/FNCTNA rotation sensor error is de-
tected when 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 IN-
PUT SPD SEN/CIRC” or the
“P0725 ENGINE SPEED SIG“
is displayed with the DTC at
the same time. Harness or connectors
(Sensor circuit is open or
shorted.)
 Output speed sensor (sec-
ondary speed sensor)
 Input speed sensor (primary
speed sensor)
 Engine speed signal system
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.

TM-264
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P1778 STEP MOTOR - FUNCTION
P1778 STEP MOTOR - FUNCTION
DescriptionINFOID:0000000003806475
 The step motor changes the step by turning 4 coils ON/OFF according to the signal from TCM. As a result,
the flow of line pressure to primary pulley is changed and pulley ratio is controlled.
 This diagnosis item is detected when the electrical system is OK, but the mechanical system is NG.
 This diagnosis item is detected when the state of the changing of the speed mechanism in the unit does not
operate normally.
DTC LogicINFOID:0000000003806476
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
 Always drive vehicle at a safe speed.
 Before starting “DTC CONFIRMATION PROCEDURE”, confirm “Hi” or “Mid” or “Low” fixation by
“PRI SPEED” and “VEHICLE SPEED” on “Data Monitor”.
 If hi-geared fixation occurred, go to TM-264, "
Diagnosis Procedure".
NOTE:
If “DTC Confirmation Procedure” has been previously performed, always turn ignition switch OFF.
Then wait at least 10 seconds before performing the next test.
Perform the following procedure to confirm the malfunction is eliminated after the repair.
1.CHECK DTC DETECTION
With CONSULT-III
1. Turn ignition switch ON.
2. Select “Data Monitor” mode for “TRANSMISSION”.
3. Make sure that output voltage of CVT fluid temperature sensor is within the range specified below.
4. Start engine and maintain the following conditions for at least 30 consecutive seconds.
With GST.
Follow the procedure “With CONSULT-III”.
Is
“P1778 STEP MOTR/FNC” detected?
YES >> Go to TM-264, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806477
1.CHECK STEP MOTOR SYSTEM
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P1778 STEP MOTR/FNCThere is a big difference be-
tween the number of steps for
the stepping motor and for the
actual gear ratio.Step motor
ATF TEMP SEN : 1.0 – 2.0 V
If it is out of range, drive the vehicle to decrease the voltage (warm up the fluid) or stop engine to increase the
voltage (cool down the fluid)
Start test from 0 km/h (0 MPH)
Constant acceleration : Keep 30 sec or more
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

TM-266
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
SHIFT POSITION INDICATOR CIRCUIT
SHIFT POSITION INDICATOR CIRCUIT
DescriptionINFOID:0000000003806478
TCM sends position indicator signals to combination meter via CAN communication line.
Component Function CheckINFOID:0000000003806479
1.CHECK SHIFT POSITION INDICATOR
CAUTION:
Always drive vehicle at a safe speed.
1. Start engine.
2. Check that correct selector lever position (“P”, “N”, “R”, “D” or “L”) is displayed as selector lever is moved
into each position.
Is the inspection result normal?
YES >> INSPECTION END
NO >> Go to TM-266, "
Diagnosis Procedure".
Diagnosis ProcedureINFOID:0000000003806480
1.CHECK INPUT SIGNALS
With CONSULT-III
1. Start engine.
2. Select “RANGE” on “Data Monitor” mode for “TRANSMISSION” and read out the value.
3. Check that correct selector lever position (“P”, “N”, “R”, “D” or “L”) is displayed as selector lever is moved
into each position.
Is the inspection result normal?
YES >> INSPECTION END
NO-1 [The actual gear position does not change, or shifting into the manual mode is not possible (no gear
shifting in the manual mode possible). Or the shift position indicator is not indicated.]>>Check the following.
 Check sport mode switch. Refer to TM-272, "
Description".
 Check CVT main system (Fail-safe function actuated).
- Check “Self Diagnostic Results” mode for “TRANSMISSION”.
NO-2 (The actual gear position changes, but the shift position indicator is not indicated.)>>
 Check “Self Diagnostic Results” mode for “TRANSMISSION”.
NO-3 (The actual gear position and the indication on the shift position indicator do not coincide.)>>
 Check “Self Diagnostic Results” mode for “TRANSMISSION”.
NO-4 (Only a specific position or positions is/are not indicated on the shift position indicator.)>>
 Check the combination meter. Refer to MWI-33, "
CONSULT-III Function (METER/M&A)".

TCM
TM-275
< ECU DIAGNOSIS >[CVT: RE0F10A]
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ECU DIAGNOSIS
TCM
Reference ValueINFOID:0000000003806487
VALUES ON THE DIAGNOSIS TOOL
Item name Condition Display value (Approx.)
VSP SENSOR During drivingApproximately matches the speedometer
reading.
ESTM VSP SIG During drivingApproximately matches the speedometer
reading.
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 – 3.5 V
ATF TEMP SEN*When 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 driving45 X Approximately matches the speedom-
eter reading.
ENG SPEED Engine running Closely matches the tachometer reading.
GEAR RATIO During driving 2.34 – 0.39
ACC PEDAL OPENReleased accelerator pedal - Fully depressed acceler-
ator pedal0.0/8 – 8.0/8
SEC PRESS “N” position idle 1.3 MPa
STM STEP During driving−20 step – 190 step
ISOLT1Lock-up “OFF” 0.0 A
Lock-up “ON” 0.7 A
ISOLT2Release foot from the accelerator pedal. 0.8 A
Press the accelerator pedal all the way down. 0.0 A
ISOLT3 Secondary 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
SOLMON3“N” position idle 0.6 – 0.7 A
When stalled 0.4 – 0.6 A
P POSITION SWSelector lever in “P” position On
Other than the above position. Off
R POSITION SWSelector lever in “R” position On
Other than the above position. Off
N POSITION SWSelector lever in “N“ position On
Other than the above position. Off

TM-284
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
Output Speed Sensor (Secondary Speed Sensor)
The shift pattern is changed in accordance with throttle position when an unexpected signal is sent from the
output speed sensor (secondary speed sensor) to the TCM. The manual mode is inhibited, and the transaxle
is put in “D”.
Input Speed Sensor (Primary Speed Sensor)
The shift pattern is changed in accordance with throttle position and secondary speed (vehicle speed) when
an unexpected signal is sent from the input speed sensor (primary speed sensor) to the TCM. The manual
mode is inhibited, and the transaxle is put in “D”.
PNP Switch
If an unexpected signal is sent from the PNP switch to the TCM, the transaxle is put in “D”.
CVT Fluid Temperature Sensor
If an unexpected signal is sent from the CVT fluid temperature sensor to the TCM, the gear ratio in use before
receiving the unexpected signal is maintained or the gear ratio is controlled to keep engine speed under 5000
rpm.
Transmission Fluid Pressure Sensor A (Secondary Pressure Sensor)
 If an unexpected signal is sent from the transmission fluid pressure sensor A (secondary pressure sensor) to
the TCM, the secondary pressure feedback control is stopped and the offset value obtained before the non-
standard condition occurs is used to control line pressure.
 If transmission fluid pressure sensor A (secondary pressure sensor) error signal is input to TCM, secondary
pressure feedback control stops, but line pressure is controlled normally.
Pressure Control Solenoid A (Line Pressure Solenoid valve)
If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid A (line pressure
solenoid valve) is turned OFF to achieve the maximum fluid pressure.
Pressure Control Solenoid B (Secondary Pressure Solenoid valve)
If an unexpected signal is sent from the solenoid to the TCM, the pressure control solenoid B (secondary pres-
sure solenoid valve) is turned OFF to achieve the maximum fluid pressure.
Torque Converter Clutch Solenoid valve
If an unexpected signal is sent from the solenoid to the TCM, the torque converter clutch solenoid valve is
turned OFF to cancel the lock-up.
Step Motor
If an unexpected signal is sent from the step motor to the TCM, the step motor coil phases “A” through “D” are
all turned OFF to hold the gear ratio used just before the non-standard condition occurred.
CVT Lock-up Select Solenoid valve
If an unexpected signal is sent from the solenoid to the TCM, the CVT lock-up select solenoid valve 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 status is restored when turning the ignition switch
OFF to ON after the normal power supply.
DTC Inspection Priority ChartINFOID:0000000003806490
If some DTCs are displayed at the same time, perform inspections one by one based on the following priority
chart.
NOTE:
If DTC “U1000 CAN COMM CIRCUIT” is displayed with other DTCs, first perform the trouble diagnosis
for “DTC U1000 CAN COMMUNICATION LINE”. Refer to TM-208
.
DTC IndexINFOID:0000000003806491
NOTE:
Priority Detected items (DTC)
1 U1000 CAN communication line
2 Except above

SYSTEM SYMPTOM
TM-291
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
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OthersNo creep at all.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. Accelerator pedal position sensorTM-252
4. PNP switchTM-213
5. CAN communication lineTM-208
6. Stall testTM-306
7. CVT positionTM-314
8. Step motorTM-261
9. Primary speed sensorTM-218
10. Secondary speed sensorTM-222
11. Accelerator pedal position sensorTM-252
12. CVT fluid temperature sensorTM-216
13. Secondary pressure sensorTM-242
14. Power supplyTM-249
OFF vehicle15. Torque converterTM-335
16. Oil pump assembly
TM-332
17. Gear system
18. Forward clutch
19. Reverse brake
20. Control valve
13Vehicle cannot run in
all positions.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. PNP switchTM-213
4. Stall testTM-306
5. CVT positionTM-314
6. Step motorTM-261
7. Primary speed sensorTM-218
8. Secondary speed sensorTM-222
9. Accelerator pedal position sensorTM-252
10. CVT fluid temperature sensorTM-216
11. Secondary pressure sensorTM-242
12. Power supplyTM-249
OFF vehicle13. Torque converterTM-335
14. Oil pump assembly
TM-332
15. Gear system
16. Forward clutch
17. Reverse brake
18. Control valve
19. Parking components No
.Item Symptom Condition Diagnostic Item Reference

TM-292
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
SYSTEM SYMPTOM
14
OthersWith selector lever in
“D” position, driving is
not possible.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. PNP switchTM-213
4. Stall testTM-306
5. CVT positionTM-314
6. Step motorTM-261
7. Primary speed sensorTM-218
8. Secondary speed sensorTM-222
9. Accelerator pedal position sensorTM-252
10. CVT fluid temperature sensorTM-216
11. Secondary pressure sensorTM-242
12. Power supplyTM-249
OFF vehicle13. Torque converterTM-335
14. Oil pump assembly
TM-332
15. Gear system
16. Forward clutch
17. Control valve
18. Parking components
15With selector lever in
“R” position, driving is
not possible.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. PNP switchTM-213
4. Stall testTM-306
5. CVT positionTM-314
6. Step motorTM-261
7. Primary speed sensorTM-218
8. Secondary speed sensorTM-222
9. Accelerator pedal position sensorTM-252
10. CVT fluid temperature sensorTM-216
11. Secondary pressure sensorTM-242
12. Power supplyTM-249
OFF vehicle13. Torque converterTM-335
14. Oil pump assembly
TM-332
15. Gear system
16. Reverse brake
17. Control valve
18. Parking components No
.Item Symptom Condition Diagnostic Item Reference