Nissan Frontier D22. Instruction — part 68
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-241
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
NOT USED
Transmission
overheats.
ON vehicle
1. Fluid level
2. Engine idling rpm
3. Throttle position sensor (Adjust-
ment)
4. Line pressure test
5. Line pressure solenoid valve
6. Control valve assembly
OFF vehicle
7. Oil pump
8. Reverse clutch
9. High clutch
10. Brake band
11. Forward clutch
12. Overrun clutch
13. Low & reverse brake
14. Torque converter
ATF shoots
out during
operation.
White smoke
emitted from
exhaust pipe
during opera-
tion.
ON vehicle
1. Fluid level
OFF vehicle
2. Reverse clutch
3. High clutch
4. Brake band
5. Forward clutch
6. Overrun clutch
7. Low & reverse brake
Offensive
smell at fluid
charging pipe.
ON vehicle
1. Fluid level
OFF vehicle
2. Torque converter
3. Oil pump
4. Reverse clutch
5. High clutch
6. Brake band
7. Forward clutch
8. Overrun clutch
9. Low & reverse brake
Engine is
stopped at R,
D, 2 and 1
positions.
ON vehicle
1. Fluid level
2. Torque converter clutch solenoid
valve
3. Shift solenoid valve B
4. Shift solenoid valve A
5. Control valve assembly
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
AT-242
[RE4R01A]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
PFP:00000
TCM Terminals and Reference Value
ECS007M1
PREPARATION
●
Measure voltage between each terminal and terminal 25 or 48
by following “TCM INSPECTION TABLE”.
TCM HARNESS CONNECTOR TERMINAL LAYOUT
TCM INSPECTION TABLE
(Data are reference values.)
AAT475A
AAT494A
Termi-
nal No.
Wire color
Item
Condition
Judgement stan-
dard (Approx.)
1
GY/R
Line pressure
solenoid valve
When releasing accelerator pedal
after warming up engine.
1.5 - 2.5V
When depressing accelerator pedal
fully after warming up engine.
0V
2
BR/Y
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.
0V
3
G/OR
Torque converter
clutch solenoid
valve
When A/T performs lock-up.
Battery voltage
When A/T does not perform lock-up.
0V
5*1
PU/W
DT1
—
—
—
6*1
P/B
DT2
—
—
7*1
G/R
DT3
—
—
8*1,*3
R/Y
DT5
—
—
—
9*1,*3
W/G
DT4
—
—
—
10
W/R
Power source
or
When turning ignition switch to ON.
Battery voltage
When turning ignition switch to OFF.
0V
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
AT-243
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
11
L/W
Shift solenoid
valve A
When shift solenoid valve A operates
(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
).
0V
12
L/Y
Shift solenoid
valve B
When shift solenoid valve B operates
(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
).
0V
13
Y
O/D OFF indica-
tor lamp
When setting overdrive control
switch in OFF position.
0V
When setting overdrive control
switch in ON position.
Battery voltage
15*1
Y/G
OBD-II
—
—
—
16
BR/W
Closed throttle
position switch (in
throttle position
switch)
When releasing accelerator pedal
after warming up engine.
Battery voltage
When depressing accelerator pedal
after warming up engine.
0V
17
OR/B
Wide open throt-
tle position switch
(in throttle posi-
tion switch)
When depressing accelerator pedal
more than half-way after warming up
engine.
Battery voltage
When releasing accelerator pedal
after warming up engine.
0V
18
B/Y
ASCD cruise sig-
nal
When ASCD cruise is being per-
formed (“CRUISE” light comes on).
Battery voltage
When ASCD cruise is not being per-
formed, (“CRUISE” light does not
comes on).
0V
19
W/R
Power source
(Same as No. 10)
or
When turning ignition switch to ON
Battery voltage
When turning ignition switch to OFF
0V
20
L/B
Overrun clutch
solenoid valve
When overrun clutch solenoid valve
operates.
Battery voltage
When overrun clutch shift solenoid
valve does not operates.
0V
22
R
Overdrive control
switch
When setting overdrive control
switch in OFF position
0V
When setting overdrive control
switch in ON position
Battery voltage
24
GY
ASCD O/D cut
signal
When ASCD permits O/D.
5 - 8V
When ASCD requires O/D to be OFF.
0V
Termi-
nal No.
Wire color
Item
Condition
Judgement stan-
dard (Approx.)
AT-244
[RE4R01A]
TROUBLE DIAGNOSIS — GENERAL DESCRIPTION
25
B/Y
Ground
—
—
0V
26
G/B
PNP switch 1
position
When setting selector lever to 1 posi-
tion.
Battery voltage
When setting selector lever to other
position.
0V
27
G/W
PNP switch 2
position
When setting selector lever to 2 posi-
tion.
Battery voltage
When setting selector lever to other
position.
0V
28
R/Y
Power source
(Memory back-up)
or
When turning ignition switch to ON.
Battery voltage
When turning ignition switch to OFF.
Battery voltage
29
Y
Revolution sensor
(Measure in AC
range)
When vehicle cruises at 30 km/h (19
MPH).
1V or more
Voltage rises
gradually in
response to vehi-
cle speed.
When vehicle parks.
0V
30*2
Y/R
DATA LINK CON-
NECTOR data in
—
—
—
31*2
GY/L
DATA LINK CON-
NECTOR data out
—
—
—
32
B/W
Throttle position
sensor (Power
source)
Ignition switch ON
4.5 - 5.5V
Ignition switch OFF
0V
34
L
PNP switch D
position
When setting selector lever to D
position.
Battery voltage
When setting selector lever to other
position.
0V
35
Y/R
PNP switch R
position
When setting selector lever to R
position.
Battery voltage
When setting selector lever to other
position.
0V
36
G/R
PNP switch P or N
position
When setting selector lever to P or N
position.
Battery voltage
When setting selector lever to other
position.
0V
38*3
Y
Turbine revolution
sensor (mea-
sured in AC
range)
When engine runs at approximately
1,000 rpm.
1.2V
39
P/L
Engine speed sig-
nal
When engine runs at idle speed.
0.5 - 2.5V
Termi-
nal No.
Wire color
Item
Condition
Judgement stan-
dard (Approx.)
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