Nissan Terrano r20e. Instruction — part 12
F
ON vehicle
E F
OFF vehicle
E
Reference page (AT-
)
Numbers are arranged in order of probability.
Perform inspections starting with number one and
work up. Circled numbers indicate that the transmis-
sion must be removed from the vehicle.
Fluid
level
Control
linkage
Park/neutral
position
switch
Throttle
(accelerator)
position
sensor
(Adjustment)
Revolution
sensor
and
vehicle
speed
sensor
Engine
speed
signal
Engine
idling
speed
Line
pressure
Control
valve
assembly
Shift
solenoid
valve
A
Shift
solenoid
valve
B
Line
pressure
solenoid
valve
T
orque
converter
clutch
solenoid
valve
Overrun
clutch
solenoid
valve
A/T
fluid
temperature
sensor
Accumulator
N-D
Accumulator
1-2
Accumulator
2-3
Accumulator
3-4
(N-R)
Ignition
switch
and
starter
T
orque
converter
Oil
pump
Reverse
clutch
High
clutch
Forward
clutch
Forward
one-way
clutch
Overrun
clutch
Low
one-way
clutch
Low
&
reverse
brake
Brake
band
Parking
pawl
components
Failure to change from “D
3
” to “2” when changing
lever into “2” position.
.
7
1
2
.
.
.
.
6
5
4
.
.
3
.
.
.
.
.
.
.
.
.
.
.
.
q
9
.
.
q
8
.
Gear change from “2
1
” to “2
2
” in “2” position.
.
.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Engine brake does not operate in “1” position.
.
2
1
3
4
.
.
.
6
5
.
.
.
7
.
.
.
.
.
.
.
.
.
.
.
.
q
8
.
q
9
.
.
Gear change from “1
1
” to “1
2
” in “1” position.
.
2
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
Does not change from “1
2
” to “1
1
” in “1” position.
.
.
1
.
2
.
.
.
4
3
.
.
.
5
.
.
.
.
.
.
.
.
.
.
.
.
q
6
.
q
7
.
.
Large shock changing from “1
2
” to “1
1
” in “1” posi-
tion.
.
.
.
.
.
.
.
.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
2
.
.
Transmission overheats.
1
.
.
3
.
.
2
4
6
.
.
5
.
.
.
.
.
.
.
.
q
14
q
7
q
8
q
9
q
11
.
q
12
.
q
13
q
10
.
ATF shoots out during operation.
White smoke emitted from exhaust pipe during
operation.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
2
q
3
q
5
.
q
6
.
q
7
q
4
.
Offensive smell at fluid charging pipe.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
2
q
3
q
4
q
5
q
7
.
q
8
.
q
9
q
6
.
Torque converter is not locked up.
.
.
3
1
2
4
.
6
8
.
.
.
7
.
5
.
.
.
.
.
q
9
.
.
.
.
.
.
.
.
.
.
Torque converter clutch piston slip
1
.
.
2
.
.
.
3
6
.
.
5
4
.
.
.
.
.
.
.
q
7
.
.
.
.
.
.
.
.
.
.
Lock-up point is extremely high or low.
.
.
.
1
2
.
.
.
4
.
.
.
3
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
A/T does not shift to “D
4
” when driving with over-
drive control switch “ON”.
.
.
2
1
3
.
.
8
6
4
.
.
.
5
7
.
.
.
.
.
.
.
.
.
.
.
q
10
.
.
q
9
.
Engine is stopped at “R”, “D”, “2” and “1” positions.
1
.
.
.
.
.
.
.
5
4
3
.
2
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
TROUBLE DIAGNOSIS — General Description
Symptom Chart (Cont’d)
AT-45
TCM Terminals and Reference Value
PREPARATION
I
Measure voltage between each terminal and terminal
q
15
or
q
48
by following “TCM INSPECTION TABLE”.
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
Terminal
No.
Item
Condition
Judgement
standard
1
Line pressure solenoid
valve
When releasing accelerator pedal
after warming up engine.
1.5 - 3.0V
When depressing accelerator pedal
fully after warming up engine.
0.5V or less
2
Line pressure solenoid
valve
(with dropping resistor)
When releasing accelerator pedal
after warming up engine.
4 - 14V
When depressing accelerator pedal
fully after warming up engine.
0.5V or less
3
Torque converter clutch
solenoid valve
When A/T performs lock-up.
8 - 15V
When A/T does not perform lock- up. Approximately 0V
5*
DT1
—
—
6*
DT2
—
—
7*
DT3
—
—
9
—
—
—
—
—
*: These terminals are connected to the ECM.
SAT010C
YAT296
TROUBLE DIAGNOSIS — General Description
AT-46
Terminal
No.
Item
Condition
Judgement
standard
10
Power source
When turning ignition switch to “ON”. Battery voltage
When turning ignition switch to
“OFF”.
Approximately 0V
11
Shift solenoid valve A
When shift solenoid valve A oper-
ates.
(When driving in “D
1
” or “D
4
”.)
Battery voltage
When shift solenoid valve A does not
operate.
(When driving in “D
2
” or “D
3
”.)
Approximately 0V
12
Shift solenoid valve B
When shift solenoid valve B oper-
ates.
(When driving in “D
1
” or “D
2
”.)
Battery voltage
When shift solenoid valve B does
not operate.
(When driving in “D
3
” or “D
4
”.)
Approximately 0V
16
Closed throttle position
switch
[in throttle (accelerator)
position switch]
When releasing accelerator pedal
after warming up engine.
Battery voltage
When depressing accelerator pedal
after warming up engine.
Approximately 0V
17
Wide open throttle posi-
tion switch
[in throttle (accelerator)
position switch]
When depressing accelerator pedal
more than half-way after warming up
engine.
Battery voltage
When releasing accelerator pedal
after warming up engine.
Approximately 0V
18
A/T mode switch
“SNOW”
When setting A/T mode switch in
“SNOW” position.
Battery voltage
When setting A/T mode switch in
other position.
Approximately 0V
19
Power source
Same as No. 104
20
Overrun clutch solenoid
valve
When overrun clutch solenoid valve
operates.
Battery voltage
When overrun clutch solenoid valve
does not operate.
Approximately 0V
22
Overdrive control switch
When setting overdrive control
switch in “ON” position
Battery voltage
When setting overdrive control
switch in “OFF” position
1V or less
26
Park/neutral “1” position
switch
When setting selector lever to “1”
position.
Battery voltage
When setting selector lever to other
positions.
Approximately 0V
27
Park/neutral “2” position
switch
When setting selector lever to “2”
position.
Battery voltage
When setting selector lever to other
positions.
Approximately 0V
28
Ground
—
—
TROUBLE DIAGNOSIS — General Description
TCM Terminals and Reference Value (Cont’d)
AT-47
Terminal
No.
Item
Condition
Judgement
standard
28
Power source
(Back-up)
or
When turning ignition switch to
“OFF”.
Battery voltage
When turning ignition switch to “ON”. Battery voltage
29
Revolution sensor
(Measure in AC rang)
When vehicle cruises at 30 km/h (19
MPH).
1V or more
Voltage rises gradually in
response to vehicle
speed.
When vehicle parks.
0V
34
Park/neutral “D” position
switch
When setting selector lever to “D”
position.
Battery voltage
When setting selector lever to other
positions.
Approximately 0V
35
Park/neutral “R” position
switch
When setting selector lever to “R”
position.
Battery voltage
When setting selector lever to other
positions.
Approximately 0V
36
Park/neutral “N” or “P”
position switch
When setting selector lever to “N” or
“P” position.
Battery voltage
When setting selector lever to other
positions.
Approximately 0V
39
Engine speed signal
When engine runs at idle speed.
0.8V
When engine runs at 2,000 rpm.
Approximately 2.2V
40
Vehicle speed sensor
When moving vehicle at 2 to 3 km/h
(1 to 2 MPH) for 1 m (3 ft) or more.
Voltage varies between
less than 1V and more
than 4.5V
42
Throttle (accelerator)
position sensor
(Power source)
—
4.5 - 5.5V
42
Ground
—
—
43
SPORT indicator lamp
When setting A/T mode switch in
“SPORT” position.
Approximately 0V
When setting A/T mode switch in
other position.
Battery voltage
44
A/T mode switch
“SPORT”
When setting A/T mode switch in
“SPORT” position.
Battery voltage
When setting A/T mode switch in
other position.
Approximately 0V
47
A/T fluid temperature
sensor
When ATF temperature is 20°C
(68°F).
Approximately 1.5V
When ATF temperature is 80°C
(176°F).
Approximately 0.5V
TROUBLE DIAGNOSIS — General Description
TCM Terminals and Reference Value (Cont’d)
AT-48
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