Pressure NISSAN TEANA 2014 Service Manual

TCM
TM-251
< ECU DIAGNOSIS INFORMATION > [CVT: RE0F10E]
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ECU DIAGNOSIS INFORMATION
TCM
Reference ValueINFOID:0000000009464218
CONSULT DATA MONITOR STANDARD VALUE
• In CONSULT, electric shift timing or lock-up timing, i. e. operation timing of each solenoid valve, is displayed.
Therefore, if there is an obvious difference between t he shift timing estimated from a shift shock (or engine
speed variations) and that shown on the CONSULT, the mechanism parts (including the hydraulic circuit)
excluding the solenoids and sensors may be malfunctioning. In this case, check the mechanical parts follow-
ing the appropriate diagnosis procedure.
• Shift point (gear position) displayed on CONSULT slight ly differs from shift pattern described in Service Man-
ual. This is due to the following reasons.
- Actual shift pattern may vary slightly within specified tolerances.
- While shift pattern described in Service Manual indica tes start of each shift, CONSULT shows gear position
at end of shift.
- The solenoid display (ON/OFF) on CONSULT is changed at the start of gear shifting. In contrast, the gear
position display is changed at the time when gear shif ting calculated in the control unit is completed.
NOTE:
The following table includes information (items) inapplicable to this vehicle. For information (items) applicable
to this vehicle, refer to CONSULT display items.
Monitor item Condition Value/Status (Approx.)
VSP SENSOR While driving Almost same as the speedometer display.
ESTM VSP SIG While driving Almost same as the speedometer display.
INPUT SPEED SENSOR In driving (lock-up ON) Ap proximately matches the engine speed.
PRI SPEED SEN In driving (lock-up ON) Approximately matches the engine speed.
SEC REV SENSOR While driving VSP SENSOR × 40
ENG SPEED SIG Engine ru nning Almost same reading as tachometer
SEC PRESSURE SEN • After engine warm up
• Selector lever: “N” position
• At idle 1.2 – 1.3 V
PRI PRESSURE SEN • After engine warm up
• Selector lever: “N” position
• At idle 0.9 V
ATF TEMP SEN CVT fluid: Approx. 20
°C (68 °F) 2.01 – 2.05 V
CVT fluid: Approx. 50 °C (122 °F) 1.45 – 1.50 V
CVT fluid: Approx. 80 °C (176 °F) 0.90 – 0.94 V
G SENSOR Vehicle is level 0 V
VIGN SEN Ignition switch: ON 10 – 16 V
PVING VOLT Ignition switch: ON 10 – 16 V
VEHICLE SPEED While driving Almost sa me as the speedometer display.
INPUT REV In driving (lock-up ON) Almost same as the engine speed.
PRI SPEED In driving (lock-up ON) Approximately matches the engine speed.
SEC SPEED While driving VSP SENSOR × 40
ENG SPEED Engine running Almost same reading as tachometer
SLIP REV While driving Engine speed − Input speed
PULLEY GEAR RATIO In driving (forward) 2.70
− 0.38
In driving (reverse) 2.70
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM -252
< ECU DIAGNOSIS INFORMATION >[CVT: RE0F10E]
TCM
G SPEEDVehicle stopped 0.00 G
During acceleration The value changes to the positive side
along with acceleration.
During deceleration The value changes to the positive side
along with deceleration.
ACCEL POSI SEN 1 Accelerator pedal released 0.00 deg
Accelerator pedal fully depressed 80.00 deg
VENG TRQ While driving The value changes along with acceleration/
deceleration.
PRI TRQ While driving The value changes along with acceleration/
deceleration.
TRQ RTO While driving The value changes along with acceleration/
deceleration.
SEC PRESSURE • After engine warm up
• Selector lever: “N” position
•At idle 1.1 MPa
PRI PRESSURE • After engine warm up
• Selector lever: “N” position
•At idle 0.7 MPa
FLUID TEMP Ignition switch ON. Displays the CVT fluid temperature.
DSR REV While driving It varies along with the driving condition.
TGT PLLY GR RATIO In driving (forward) 2.70
− 0.38
In driving (reverse) 2.70
LU PRS • Engine started
• Vehicle is stopped −
0.500 MPa
• Selector lever: “D” position
• Accelerator pedal position: 1/8 or less
• Vehicle speed: 20 km/h (12 MPH) or more 0.450 MPa
LINE PRS • After engine warm up
• Selector lever: “N” position
•At idle 1.1 MPa
TRGT PRI PRESSURE • After engine warm up
• Selector lever: “N” position
•At idle 0.7 MPa
TRGT SELECT PRESSURE • After engine warm up
• Selector lever: “N” position
•At idle 0 MPa
• Selector lever: “D” position
•At idle 0.3 – 0.5 MPa
TRGT SEC PRESSURE • After engine warm up
• Selector lever: “N” position
•At idle 1.1 MPa
ISOLT1 • Engine started
• Vehicle is stopped. 0.000 A
• Selector lever: “D” position
• Accelerator pedal position: 1/8 or less
• Vehicle speed: 20 km/h (12 MPH) or more 0.500 A
ISOLT2 • After engine warm up
• Selector lever: “N” position
•At idle 0.800 – 0.850 A
Monitor item Condition Value/Status (Approx.)
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-256
< ECU DIAGNOSIS INFORMATION >[CVT: RE0F10E]
TCM
Te r m i n a l N o .
(Wire color) Description
Condition Value (Approx.)
+ − Signal Input/
Output
2
(SB) Ground DS position switch Input
Ignition
switch
ON Selector lever: “DS” posi-
tion 10
− 16 V
Other than the above 0 V
4
(LG) Ground D position switch Input Selector lever:
“D” position 10 − 16 V
Other than the above 0 V
5
(BR) Ground N position switch Input Selector lever:
“N” position 10 − 16 V
Other than the above 0 V
6
(L) Ground R position switch Input Selector lever:
“R” position 10 − 16 V
Other than the above 0 V
7
(V) Ground P position switch Input Selector lever: “P” position 10
− 16 V
Other than the above 0 V
11
(Y) Ground Sensor ground Input Always 0 V
12
(V) Ground CVT fluid tempera-
ture sensor OutputIgnition
switch
ON CVT fluid: Approx. 20
°C
(68 °F) 2.01 – 2.05 V
CVT fluid: Approx. 50 °C
(122 °F) 1.45 – 1.50 V
CVT fluid: Approx. 80 °C
176 °F) 0.90 – 0.94 V
16
(Y) Ground Secondary pres-
sure sensor Input• Selector lever:
“N” position
• At idle 1.67 – 1.69 V
17
(LG) Ground Primary pressure
sensor Input• Selector lever:
“N” position
• At idle 0.90 – 0.92 V
23
(P) —CAN-L
Input/
Output ——
24
(BR) Ground Input speed sensor Input • Selector lever:
“DS” position
• Vehicle speed: 20 km/h (12 MPH) 800 Hz
26
(LG) Ground
Sensor power sup-
ply OutputIgnition switch: ON 5.0 V
Ignition switch: OFF 0 V
JSDIA3770GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TCM
TM-257
< ECU DIAGNOSIS INFORMATION > [CVT: RE0F10E]
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(BR) Ground
Line pressure sole-
noid valve Output• After engine warming up
• Selector lever: “N” position
• At idle
• After engine warming up
• Selector lever: “N” position
• Depress the accelerator pedal fully
33
(L) —CAN-H Input/
Output ——
34
(V) Ground Output speed sen-
sor Input• Selector lever: “DS” position
• Vehicle speed: 20 km/h (12 MPH) 200 Hz
35
(BR) Ground
Primary speed sen-
sor Input
• Selector lever: “DS” position
• Vehicle speed: 20 km/h (12 MPH) 600 Hz
37
(Y) Ground Select solenoid
valve OutputIn driving at “DS” position
Release the accelerator pedal after
the following conditions are satisfied
• Selector lever: “D” position
• Accelerator pedal position: 1/8 or less
• Vehicle speed: 50 km/h (31 MPH) or
more
Te r m i n a l N o .
(Wire color) Description
Condition Value (Approx.)
+ − Signal Input/
OutputJSDIA1897GB
JSDIA1898GB
JSDIA1897GB
JSDIA3770GB
JSDIA1897GB
JSDIA1899GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-258
< ECU DIAGNOSIS INFORMATION >[CVT: RE0F10E]
TCM
Fail-safe
INFOID:0000000009464219
TCM has a fail-safe mode. The mode functions so that operation can be continued even if the signal circuit of
the main electronically contro lled input/output parts is damaged.
If the vehicle shows following behaviors including “poor acceleration”, a malfunction of the applicable system
is detected by TCM and the vehicle may be in a fail-sa fe mode. At this time, check the DTC code and perform
inspection and repair according to the malfunction diagnosis procedures.
38
(BR) Ground Torque converter
clutch solenoid
valve Output• Selector lever:
“D” position
• Accelerator pedal position: 1/8 or
less
• Vehicle speed: 20 km/h (12 MPH) or more
• Engine started
• Vehicle is stopped
39
(L) Ground Secondary pres-
sure solenoid valve Output• Selector lever:
“DS” position
• Vehicle speed: 20 km/h (12 MPH)
40
(LG) Ground
Primary pressure
solenoid valve Output
• Selector lever:
“DS” position
• Vehicle speed: 20 km/h (12 MPH)
41
(B) Ground Ground Output Always 0 V
42
(B) Ground Ground Output Always 0 V
45
(P) Ground Battery power sup-
ply (memory back-
up) Input Always 10
− 16 V
46
(P) Ground Battery power sup-
ply (memory back-
up) Input Always 10
− 16 V
47
(Y) Ground Ignition power sup-
ply InputIgnition switch: ON 10
− 16 V
Ignition switch: OFF 0 V
48
(Y) Ground Ignition power sup-
ply InputIgnition switch: ON 10
− 16 V
Ignition switch: OFF 0 V
Te r m i n a l N o .
(Wire color) Description
Condition Value (Approx.)
+ − Signal Input/
OutputJSDIA1902GB
JSDIA1903GB
JSDIA1897GB
JSDIA1897GB
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-260
< ECU DIAGNOSIS INFORMATION >[CVT: RE0F10E]
TCM
P0746• Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0776 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed
• Vehicle speed is not increased When a malfunction occurs on the low oil pressure side
• Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed When a malfunction occurs on the high oil pressure side
P0778 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0779 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed
P0841 • Not changed from normal driving
P0847 • Not changed from normal driving —
P0848 • Not changed from normal driving —
P084C • Not changed from normal driving
P084D • Not changed from normal driving
P0863 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0890 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed
• Vehicle speed is not increased
P0962 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0963 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0965 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed When a malfunction occurs on the low oil pressure side
• Selector shock is large
• Lock-up is not performed When a malfunction occurs on the high oil pressure side
P0966 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
P0967 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
DTC Vehicle behavior Conditions of vehicle
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TCM
TM-261
< ECU DIAGNOSIS INFORMATION > [CVT: RE0F10E]
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Protection Control INFOID:0000000009464220
The TCM becomes the protection control status temporar ily to protect the safety when the safety of TCM and
transmission is lost. It automatically returns to the normal status if the safety is secured.
The TCM has the following protection control.
CONTROL FOR WHEEL SPIN
TORQUE IS REDUCED WHEN DRIVING WITH THE REVERSE GEAR
CONTROL WHEN FLUID TEMPERATURE IS HIGH
P2765 •Start is slow
• Acceleration is slow
• Lock-up is not performed —
P2813 • Selector shock is large
•Start is slow
• Acceleration is slow
• Vehicle speed is not increased When a malfunction occurs on the low oil pressure side
• Selector shock is large When a malfunction occurs on the high oil pressure side
P2814 • Selector shock is large —
P2815 • Selector shock is large —
U0073 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
U0100 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
U0140 • Not changed from normal driving —
U0141 • Not changed from normal driving —
U0155 • Not changed from normal driving —
U0300 • Selector shock is large
•Start is slow
• Acceleration is slow
• Lock-up is not performed —
U1000 • Not changed from normal driving — U1117 • Not changed from normal driving — DTC Vehicle behavior Conditions of vehicle
Control
When a wheel spin is detected, the engine output and gear ratio are limited and the line pressure is increased.
Limits engine output when a wheel spin occurs in any of right and left drive wheels.
Vehicle behavior in
control If the accelerator is kept depressing during wheel spin, the engine revolution and vehicle speed are limited to
a certain degree.
Normal return condi-
tion Wheel spin convergence returns the control to the normal control.
Control Engine output is controlled according to a vehicle speed while reversing the vehicle.
Vehicle behavior in
control Power performance may be lowered while reversing the vehicle.
Normal return condi-
tion Torque returns to normal by positioning the sele
ctor lever in a range other than “R” position.
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-288
< BASIC INSPECTION >[CVT: RE0F10E]
STALL TEST
STALL TEST
Work ProcedureINFOID:0000000009464233
INSPECTION
1. Check the engine oil level. Replenish if necessary. Refer to
LU-25, "Inspection".
2. Check for leak of the CVT fluid. Refer to TM-377, "Inspection"
.
3. 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).
4. Be sure to apply the parking brake and block the tires.
5. Start the engine, depress the brake pedal and sh ift the selector lever to “D” position.
6. While depressing the brake pedal, depress the accelerator pedal gradually.
7. Read the stall speed quickly and release your foot from the accelerator pedal quickly. CAUTION:
Do not depress the accelerator pedal for 5 seconds or more during the test.
8. Shift the selector lever to “N” position.
9. Cool the CVT fluid. CAUTION:
Run the engine with the idle speed for at least 1 minute.
10. Put the selector lever to the R position and perform Step 6 to Step 9 again.
NARROWING-DOWN MALFUNCTIONING PARTS
O: Within the stall speed standard value.
H: Stall speed is higher than the standard value.
L: Stall speed is lower than the standard value.
Stall speed : Refer to TM-413, "Stall Speed".
Selector lever position
Possible cause
DR
Stal l s pe ed HO•Forward clutch
O H • Reverse brake
LL •Engine
• Torque converter one way clutch
HH • Line pressure is low.
• Primary pulley
• Secondary pulley
• Chain belt
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-326
< DTC/CIRCUIT DIAGNOSIS >[CVT: RE0F10E]
P0744 TORQUE CONVERTER
P0744 TORQUE CONVERTER
DTC LogicINFOID:0000000009464280
DTC DETECTION LOGIC
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.
>> GO TO 2.
2.PREPARATION BEFORE OPERATION
With CONSULT
1. Start the engine.
2. Select “Data Monitor” in “TRANSMISSION”.
3. Select “FLUID TEMP”.
4. Confirm that the CVT fluid temper ature is in the following range.
With GST
1. Start the engine.
2. Set the CVT fluid to 20 °C (68 °F) or more.
NOTE:
When the ambient temperature is 20 °C (68 °F), the CVT fluid usually increases to 50 to 80 °C (122 to
176 °F) with driving in an urban area for approximately 10 minutes.
Is the CVT fluid 20
°C (68°F) or more?
YES >> GO TO 3.
NO >> 1. Warm the transaxle. 2. GO TO 3.
3.CHECK DTC DETECTION
1. Drive the vehicle.
2. Maintain the following conditions for 10 seconds or more.
3. Stop the vehicle.
4. Check the first trip DTC.
Is
“P0744” detected?
YES >> Go to TM-327, "Diagnosis Procedure".
DTCCONSULT screen terms
(Trouble diagnosis content) DTC detection condition Possible causes
P0744 TORQUE CONVERTER
(Torque converter clutch cir-
cuit intermittent) When all of the following conditions are satis-
fied and this state is maintained for 30 sec-
onds:
• TCM power supply voltage: More than 11 V
• P0717 is not detected.
• CAN communication is normal
• Torque converter slip speed: (40+vihicle
speed/2) rpm
• LU pressure: More than 0.2 MPa • Torque converter clutch solenoid valve
• Control valve assembly
• Torque converter
FLUID TEMP : 20 °C (68 °F) or more
Selector lever : “D” position
Accelerator pedal position : 0.5/8 or more
Vehicle speed : 40 km/h (25 MPH) or more
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM

TM-328
< DTC/CIRCUIT DIAGNOSIS >[CVT: RE0F10E]
P0746 PRESSURE CONTROL SOLENOID A
P0746 PRESSURE CONTROL SOLENOID A
DTC LogicINFOID:0000000009464282
DTC DETECTION LOGIC
NOTE:
DC stands for "DRIVING CYCLE" and indicates a seri es of driving cycle of "Ignition switch OFF → ON → driv-
ing → OFF".
DTC CONFIRMATION PROCEDURE
CAUTION:
Be careful of the driving speed.
1.PREPARATION BEFORE WORK
If another "DTC CONFIRMATION PROCEDURE" occurs just before, turn ignition switch OFF and wait for at
least 10 seconds, then perform the next test.
>> GO TO 2.
2.CHECK DTC DETECTION
1. Start the engine.
2. Drive the vehicle.
3. Maintain the following conditions for 10 seconds or more.
4. Stop the vehicle.
5. Check the first trip DTC.
Is
“P0746”detected?
YES >> Go to TM-329, "Diagnosis Procedure".
DTCCONSULT screen terms
(Trouble diagnosis content) DTC detection condition Possible causes
P0746 PC SOLENOID A
(Pressure Contro l Solenoid A
Performance/Stuck Off) The detecting condition A or detection condi-
tion B is detected twice or more (1 second or
more later after detection of the first) in the
same DC under the following diagnosis condi-
tions:
• Diagnosis conditions
- Engine speed: More than 600 rpm
- Primary pulley speed: More than 450 rpm
- Idle is not being detected.
- Acceleration/deceleration speed: −0.49 m/
s
2 ( −0.05 G) or more
- The primary pulley speed experienced 300
rpm or more and the secondary pulley
speed experienced 250 rpm or more at least
once.
- Secondary pulley speed: More than 150
rpm
- TCM power supply voltage: More than 11 V
• Detection condition A
- Status with the shifting ratio of the primary pulley speed/secondary pulley ratio exceed-
ing 2.825 is 0.2 sec or more continuously.
• Detection condition B
- Status with the shifting ratio of the primary pulley speed/secondary pulley ratio exceed-
ing 3.625 is 0.1 sec or more continuously. • Line pressure solenoid valve
• Control valve assembly
Selector lever : “D” position
Accelerator pedal position : 0.5/8 or more
Vehicle speed : 40 km/h (25 MPH) or more
Revision: November 20132014 Altima NAMRevision: November 20132014 Altima NAM