TROUBLE DIAGNOSIS
< SERVICE INFORMATION >
Engine speed (rpm)
Engine type Throttle position Shift pattern
At 40 km/h (25 MPH) At 60 km/h (37 MPH)
“D” position
8/8 Overdrive-off mode 3,300 - 4,300 4,300 - 5,200
“L” position
QR25DE
“D” position 1,200 - 3,100 1,300 - 3,500
2/8 Overdrive-off mode 2,200 - 3,000 2,800 - 3,600
“L” position 3,400 - 4,300 4,100 - 5,000
“D” position
8/8 Overdrive-off mode 3,400 - 4,200 4,300 - 5,100
“L” position
MR20DE
“D” position 1,400 - 2,200 1,600 - 2,400
2/8 Overdrive-off mode 2,200 - 3,000 2,800 - 3,600
“L” position 3,600 - 4,400 4,000 - 4,900
CAUTION:
Lock-up clutch is engaged when vehicle speed is approximately 18 km/h (11 MPH) to 90 km/h (56 MPH).
TCM Input/Output Signal Reference Value INFOID:0000000005284116
TCM HARNESS CONNECTOR TERMINAL LAYOUT
WCIA0718E
TERMINALS AND REFERENCE VALUES FOR TCM
Data are reference values and are measured between each terminal and ground.
Wire
Terminal Item Condition Data (Approx.)
color
Transmission Selector lever in “R” position. Battery voltage
1 W/B range switch “R”
position When setting selector lever to other positions 0V
Transmission Selector lever in “N” position Battery voltage
2 P/B range switch “N”
position When setting selector lever to other positions 0V
Transmission Selector lever in “D” position Battery voltage
3 G/O range switch “D”
position When setting selector lever to other positions 0V
Transmission Selector lever in “L” position Battery voltage
4 GR range switch “L”
position When setting selector lever to other positions 0V
5 B Ground Always 0V
6 P/L K-LINE — —
7 W/R Sensor ground Always 0V
8 G/W ROM assembly — —
9 L/R ROM assembly — —
Revision: January 2010 CVT-44 2010 Sentra
TROUBLE DIAGNOSIS
< SERVICE INFORMATION >
Wire
Terminal Item Condition Data (Approx.)
color A
10 BR/R ROM assembly — —
Transmission Selector lever in “P” position Battery voltage
11 BR/W range switch “P”
B
position When setting selector lever to other positions 0V
When CVT fluid temperature is 20°C (68°F) 2.0 V
CVT fluid tem- CVT
13 V
perature sensor When CVT fluid temperature is 80°C (176°F) 1.0 V
Primary pres-
14 LG — — — D
sure sensor
E
Secondary pres-
15 V/W and “N” position idle 1.0 V
sure sensor
25 W/R Sensor ground Always 0V
G
— 5.0 V
26 L/O Sensor power
H
— 0V
27 R/G Step motor D Within 2 seconds after ignition switch ON, the time measurement by using 10.0 msec I
the pulse width measurement function (Hi level) of CONSULT-III.*1
28 R Step motor C 30.0 msec
CAUTION:
29 O/B Step motor B Connect the diagnosis data link cable to the vehicle diagnosis connec- 10.0 msec
J
tor.
30 G/R Step motor A *1: A circuit tester cannot be used to test this item. 30.0 msec
31 P CAN-L — —
K
32 L CAN-H — —
Primary speed
33 LG/R When driving [“L” position, 20 km/h (12 MPH)]. 880 Hz L
sensor
Secondary
34 W When driving [“D” position, 20 km/h (12 MPH)]. 430 Hz M
speed sensor
Selector lever in “P” or “N” positions Battery voltage
Lock-up select
37 L/W Wait at least for 5 seconds with the selector lever in N
solenoid valve 0V
“R”, “D” or “L” positions
Torque converter When vehi- When CVT performs lock-up. 6.0 V
38 G clutch solenoid cle cruises in O
valve “D” position. When CVT does not perform lock-up. 1.5 V
Secondary pres- Release your foot from the accelerator pedal. 5.0 - 7.0 V
39 W/G sure solenoid P
valve Press the accelerator pedal all the way down. 3.0 - 4.0 V
and Release your foot from the accelerator pedal. 5.0 - 7.0 V
Line pressure
40 R/Y
solenoid valve Press the accelerator pedal all the way down. 1.0 V
42 B Ground Always 0V
Revision: January 2010 CVT-45 2010 Sentra
TROUBLE DIAGNOSIS
< SERVICE INFORMATION >
Wire
Terminal Item Condition Data (Approx.)
color
Power supply
45 Y/R (memory back- Always Battery voltage
up)
— Battery voltage
46 Y Power supply
— 0V
Power supply
47 Y/R (memory back- Always Battery voltage
up)
— Battery voltage
48 Y Power supply
— 0V
CONSULT-III Function (TRANSMISSION) INFOID:0000000005284117
CONSULT-III can display each diagnostic item using the diagnostic test modes shown below.
FUNCTION
Diagnostic test mode Function
This mode enables a technician to adjust some devices faster and more accurately by following
Work support
the indications on CONSULT-III.
Self-diagnostic results Self-diagnostic results can be read and erased quickly.
Data monitor Input/Output data in the TCM can be read.
CAN diagnostic support monitor The results of transmit/receive diagnosis of CAN communication can be read.
CALIB data Characteristic information for TCM and CVT assembly can be read.
Performed by CONSULT-III instead of a technician to determine whether each system is “OK” or
Function test
“NG”.
ECU part number TCM part number can be read.
CONSULT-III REFERENCE VALUE
Item name Condition Display value (Approx.)
VSP SENSOR Approximately matches the speedometer
During driving
ESTM VSP SIG 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
When CVT fluid temperature is 20°C (68°F) 2.0 V
ATF TEMP SEN
When CVT fluid temperature is 80°C (176°F) 1.0 V
VIGN SEN Ignition switch: ON Battery voltage
Approximately matches the speedometer
VEHICLE SPEED During driving
reading.
PRI SPEED During driving (lock-up ON) Approximately matches the engine speed.
Revision: January 2010 CVT-46
Copyright 2009 - 2013 Service Repair Solutions, Inc. 2010 Sentra
