Nissan Frontier D22. Manual — 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

AT-414

2. Engine idling rpm

EC-604

EC-1205

3. Throttle position sensor (Adjust-
ment)

EC-646

EC-1247

4. Line pressure test

AT-255

5. Line pressure solenoid valve

AT-306

6. Control valve assembly

AT-255

OFF vehicle

7. Oil pump

AT-306

8. Reverse clutch

AT-306

9. High clutch

AT-450

10. Brake band

AT-306

11. Forward clutch

AT-306

12. Overrun clutch

AT-306

13. Low & reverse brake

AT-450

14. Torque converter

AT-414

ATF shoots
out during
operation.
White smoke
emitted from
exhaust pipe
during opera-
tion.

ON vehicle

1. Fluid level

AT-414

OFF vehicle

2. Reverse clutch

AT-306

3. High clutch

AT-450

4. Brake band

AT-306

5. Forward clutch

AT-306

6. Overrun clutch

AT-306

7. Low & reverse brake

AT-450

Offensive
smell at fluid
charging pipe.

ON vehicle

1. Fluid level

AT-414

OFF vehicle

2. Torque converter

AT-414

3. Oil pump

AT-306

4. Reverse clutch

AT-445

5. High clutch

AT-450

6. Brake band

AT-306

7. Forward clutch

AT-306

8. Overrun clutch

AT-306

9. Low & reverse brake

AT-450

Engine is
stopped at R,
D, 2 and 1
positions.

ON vehicle

1. Fluid level

AT-414

2. Torque converter clutch solenoid
valve

AT-255

3. Shift solenoid valve B

AT-316

4. Shift solenoid valve A

AT-311

5. Control valve assembly

AT-255

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.)