2008 NISSAN TEANA oil temperature

TM-260
< COMPONENT DIAGNOSIS >[CVT: RE0F10A]
P1745 LINE PRESSURE CONTROL
P1745 LINE PRESSURE CONTROL
DescriptionINFOID:0000000003806468
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:0000000003806469
DTC DETECTION LOGIC
DTC CONFIRMATION 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 below.
Is
“P1745 L/PRESS CONTROL” detected?
YES >> Go to TM-260, "Diagnosis Procedure".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
Diagnosis ProcedureINFOID:0000000003806470
1.CHECK DTC
With CONSULT-III
1. Start engine.
2. Select “Self Diagnostic Results” mode for “TRANSMISSION”.
Is the
“P1745 L/PRESS CONTROL” displayed?
YES >> Replace TCM. Refer to TM-315, "Exploded View".
NO >> Check intermittent incident. Refer to GI-35, "
Intermittent Incident".
DTCItem
(CONSULT-III screen term)Malfunction is detected when... Possible cause
P1745 L/PRESS CONTROLTCM detects the unexpected
line pressure.TCM
ATF TEMP SEN : 1.0 – 2.0 V
If 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)

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-276
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
*Means CVT fluid temperature. Convert numerical values for actual fluid temperature °C (°F). Refer to TM-301, "ATFTEMP COUNT
Conversion Table".
TERMINAL LAYOUT
D POSITION SWSelector lever in “D” position On
Other than the above position. Off
L POSITION SWSelector lever in “L” position On
Other than the above position. 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 sport mode switch On
Other conditions Off
INDLRNGSelector lever in “L” position On
When setting selector lever to other positions. Off
INDDRNGSelector lever in “D” position On
When setting selector lever to other positions. Off
INDNRNGSelector lever in “N“ position On
When setting selector lever to other positions. Off
INDRRNGSelector lever in “R” position On
When setting selector lever to other positions. Off
INDPRNGSelector lever in “P” position On
When setting selector lever to other positions. Off
SPORT MODE INDWhen sport mode On
Other conditions Off
SMCOIL A During driving Changes On ⇔ Off.
SMCOIL B During driving Changes On ⇔ Off.
SMCOIL C During driving Changes On ⇔ Off.
SMCOIL D During driving Changes On ⇔ Off.
LUSEL SOL OUTSelector lever in “P” and “N” positions On
Wait at least for 5 seconds with the selector lever in “R”
and “D” positionsOff
LUSEL SOL MONSelector lever in “P” and “N” positions On
Wait at least for 5 seconds with the selector lever in “R”
and “D” positionsOff
ABS ONABS operate On
Other conditions Off
RANGESelector lever in “N” and “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.)

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-287
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
4
Slips/Will
Not EngageVehicle cannot be
started from “D” posi-
tion.ON vehicle1. CVT fluid level and stateTM-304
2. CVT positionTM-314
3. CAN communication lineTM-208
4. Line pressure testTM-308
5. Stall testTM-306
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. Oil pump assembly
TM-33214. Forward clutch
15. Control valve
16. Parking components
5Vehicle cannot be
started from “R” posi-
tion.ON vehicle1. CVT fluid level and stateTM-304
2. CVT positionTM-314
3. CAN communication lineTM-208
4. Line pressure testTM-308
5. Stall testTM-306
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. Oil pump assembly
TM-33214. Reverse brake
15. Control valve
16. Parking components No
.Item Symptom Condition Diagnostic Item Reference

TM-288
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
SYSTEM SYMPTOM
6
Slips/Will
Not EngageDoes not lock-up.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. Engine speed signalTM-226
4. Primary speed sensorTM-218
5. Torque converter clutch solenoid valveTM-230
6. CAN communication lineTM-208
7. Stall testTM-306
8. Step motorTM-261
9. PNP switchTM-213
10. Lock-up select solenoid valveTM-258
11. CVT fluid temperature sensorTM-216
12. Secondary speed sensorTM-222
13. Secondary pressure sensorTM-242
OFF vehicle14. Torque converterTM-33515. Oil pump assembly
TM-332
16. Control valve
7Does not hold lock-up
condition.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. Engine speed signalTM-226
4. Primary speed sensorTM-218
5. Torque converter clutch solenoid valveTM-230
6. CAN communication lineTM-208
7. Stall testTM-306
8. Step motorTM-261
9. PNP switchTM-213
10. Lock-up select solenoid valveTM-258
11. CVT fluid temperature sensorTM-216
12. Secondary speed sensorTM-222
13. Secondary pressure sensorTM-242
OFF vehicle14. Torque converterTM-33515. Oil pump assembly
TM-332
16. Control valve No
.Item Symptom Condition Diagnostic Item Reference

SYSTEM SYMPTOM
TM-289
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
8
Slips/Will
Not EngageLock-up is not re-
leased.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. Engine speed signalTM-226
4. Primary speed sensorTM-218
5. Torque converter clutch solenoid valveTM-230
6. CAN communication lineTM-208
7. Stall testTM-306
OFF vehicle8. Torque converterTM-3359. Oil pump assembly
TM-332
10. Control valve
9With selector lever in
“D” position, accelera-
tion is extremely poor.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. Stall testTM-306
4. Accelerator pedal position sensorTM-252
5. CAN communication lineTM-208
6. PNP switchTM-213
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. Secondary pressure sensorTM-242
13. CVT fluid temperature sensorTM-216
14. Power supplyTM-249
OFF vehicle15. Torque converterTM-33516. Oil pump assembly
TM-332
17. Forward clutch
18. Control valve No
.Item Symptom Condition Diagnostic Item Reference

TM-290
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
SYSTEM SYMPTOM
10
Slips/Will
Not EngageWith selector lever in
“R” position, accelera-
tion is extremely poor.ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. Stall testTM-306
4. Accelerator pedal position sensorTM-252
5. CAN communication lineTM-208
6. PNP switchTM-213
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. Secondary pressure sensorTM-242
13. CVT fluid temperature sensorTM-216
14. Power supplyTM-249
OFF vehicle15. Torque converterTM-33516. Oil pump assembly
TM-332
17. Reverse brake
18. Control valve
11 S l i p s a t l o c k - u p .ON vehicle1. CVT fluid level and stateTM-304
2. Line pressure testTM-308
3. Engine speed signalTM-226
4. Primary speed sensorTM-218
5. Torque converter clutch solenoid valveTM-230
6. CAN communication lineTM-208
7. Stall testTM-306
8. Step motorTM-261
9. PNP switchTM-213
10. Lock-up select solenoid valveTM-258
11. CVT fluid temperature sensorTM-216
12. Secondary speed sensorTM-222
13. Secondary pressure sensorTM-242
OFF vehicle14. Torque converterTM-33515. Oil pump assembly
TM-332
16. Control valve No
.Item Symptom Condition Diagnostic Item Reference