NISSAN TEANA 2008 Service Manual

TM-278
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
*: A circuit tester cannot be used to test this item.26
(L/O)Ground Sensor power OutputIgnition switch ON 5.0 V
Ignition switch OFF 0 V
27
(R/G)Ground Step motor D Output
Within 2 seconds after ignition switch ON, measure the
time using the pulse width measurement function (Hi
level) of CONSULT-III.*
CAUTION:
Connect the diagnosis data link cable to the vehicle
diagnosis connector.10.0
msec
28
(R)Ground Step motor C Output30.0
msec
29
(O/B)Ground Step motor B Output10.0
msec
30
(G/R)Ground Step motor A Output30.0
msec
31
(P)— CAN-L Input/Output — —
32
(L)— CAN-H Input/Output — —
33
(SB)GroundInput speed sensor (Prima-
ry speed sensor)Input When driving [“L” position, 20 km/h (12 MPH)] 950 Hz
34
(LG/R)GroundOutput speed sensor (Sec-
ondary speed sensor)Input When driving [“D” position, 20 km/h (12 MPH)] 490 Hz
37
(V/R)GroundLock-up select solenoid
valveOutput Ignition switch ONSelector lever in “P” or “N” posi-
tions Battery
voltage
Wait at least for 5 seconds with
the selector lever in “R” or “D”
positions.0 V
38
(L/W)GroundTorque converter clutch so-
lenoid valveOutputWhen vehicle cruis-
es in “D” positionWhen CVT performs lock-up 6.0 V
When CVT does not perform
lock-up1.5 V
39
(W/B)GroundPressure control solenoid
valve B (Secondary pres-
sure solenoid valve)Output
“P” or “N” position
idle Release your foot from the ac-
celerator pedal.5.0 – 7.0
V
Press the accelerator pedal all
the way down.3.0 – 4.0
V
40
(R/Y)GroundPressure control solenoid
valve A (Line pressure so-
lenoid valve)Output Release your foot from the ac-
celerator pedal.5.0 – 7.0
V
Press the accelerator pedal all
the way down.1.0 V
42
(B)Ground Ground Output Always 0 V
45
(L/R)GroundPower supply
(memory back-up)Input AlwaysBattery
voltage
46
(Y)Ground Power supply InputIgnition switch ONBattery
voltage
Ignition switch OFF 0 V
47
(L/R)GroundPower supply
(memory back-up)Input AlwaysBattery
voltage
48
(Y)Ground Power supply InputIgnition switch ONBattery
voltage
Ignition switch OFF 0 V Te r m i n a l N o .
(wire color)Description
ConditionVa l u e
(Approx.)
+−Signal name Input/Output

TCM
TM-279
< ECU DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Wiring Diagram - CVT CONTROL SYSTEM -INFOID:0000000003806488
JCDWM0248GB

TM-280
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
JCDWM0249GB

TCM
TM-281
< ECU DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
JCDWM0250GB

TM-282
< ECU DIAGNOSIS >[CVT: RE0F10A]
TCM
JCDWM0251GB

TCM
TM-283
< ECU DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
Fail-safeINFOID:0000000003806489
The TCM has an electrical fail-safe mode. In this mode TCM is operates even if there is an error in a main
electronic control input/output signal circuit.
FAIL-SAFE FUNCTION
If any malfunction occurs in a sensor or solenoid, this function controls the CVT to make driving possible.
JCDWM0252GB

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

TCM
TM-285
< ECU DIAGNOSIS >[CVT: RE0F10A]
C
E
F
G
H
I
J
K
L
MA
B
TM
N
O
P
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
.
*1: These numbers are prescribed by ISO 15031-6.
*2: Refer to TM-202, "
Diagnosis Description". DTC
*1
Items
(CONSULT-III screen terms)Reference MI*2, “ENGINE” with
CONSULT-III or
GSTCONSULT-III only
“TRANSMISSION”
— P0703 BRAKE SW/CIRCTM-210
P0705 P0705 PNP SW/CIRCTM-213
P0710 P0710 ATF TEMP SEN/CIRCTM-216
P0715 P0715 INPUT SPD SEN/CIRCTM-218
P0720 P0720 VEH SPD SEN/CIR ATTM-222
— P0725 ENGINE SPEED SIGTM-226
— P0730 BELT DAMGTM-228
P0740 P0740 TCC SOLENOID/CIRCTM-230
P0744 P0744 A/T TCC S/V FNCTNTM-232
P0745 P0745 L/PRESS SOL/CIRCTM-234
P0746 P0746 PRS CNT SOL/A FCTNTM-236
P0776 P0776 PRS CNT SOL/B FCTNTM-238
P0778 P0778 PRS CNT SOL/B CIRCTM-240
P0840 P0840 TR PRS SENS/A CIRCTM-242
— P0841 PRESS SEN/FNCTNTM-245
— P0868 SEC/PRESS DOWNTM-247
— P1701 TCM-POWER SUPPLYTM-249
— P1705 TP SEN/CIRC A/TTM-252
— P1722 ESTM VEH SPD SIGTM-253
— P1723 CVT SPD SEN/FNCTNTM-255
— P1726 ELEC TH CONTROLTM-257
P1740 P1740 LU-SLCT SOL/CIRCTM-258
— P1745 L/PRESS CONTROLTM-260
P1777 P1777 STEP MOTR CIRCTM-261
P1778 P1778 STEP MOTR/FNCTM-264
U1000 U1000 CAN COMM CIRCUITTM-208
— U1010 CONTROL UNIT (CAN)TM-209

TM-286
< SYMPTOM DIAGNOSIS >[CVT: RE0F10A]
SYSTEM SYMPTOM
SYMPTOM DIAGNOSIS
SYSTEM SYMPTOM
Symptom TableINFOID:0000000003806492
The diagnostics item numbers show the sequence for inspection. Inspect in order from item 1.
No
.Item Symptom Condition Diagnostic Item Reference
1
Shift ShockLarge shock. (“N”→
“D” position)ON vehicle1. Engine idle speedEC-14
2. Engine speed signalTM-226
3. Accelerator pedal position sensorTM-252
4. CVT positionTM-314
5. CVT fluid temperature sensorTM-216
6. CAN communication lineTM-208
7. CVT fluid level and stateTM-304
8. Line pressure testTM-308
9. Torque converter clutch solenoid valveTM-230
10. Lock-up select solenoid valveTM-258
11 . P N P s w i t c hTM-213
OFF vehicle12. Forward clutch
TM-33213. Control valve
2Large shock. (“N”→
“R” position)ON vehicle1. Engine idle speedEC-14
2. Engine speed signalTM-226
3. Accelerator pedal position sensorTM-252
4. CVT positionTM-314
5. CVT fluid temperature sensorTM-216
6. CAN communication lineTM-208
7. CVT fluid level and stateTM-304
8. Line pressure testTM-308
9. Torque converter clutch solenoid valveTM-230
10. Lock-up select solenoid valveTM-258
11 . P N P s w i t c hTM-213
OFF vehicle12. Reverse brake
TM-33213. Control valve
3Shock is too large for
lock-up.ON vehicle1. CVT positionTM-314
2. Engine speed signalTM-226
3. CAN communication lineTM-208
4. CVT fluid level and stateTM-304
OFF vehicle5. Torque converterTM-3356. Control valveTM-332

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