Content .. 66 67 68 69 ..

Nissan Frontier D22. Manual - part 68

TROUBLE DIAGNOSIS — BASIC INSPECTION

AT-241

[RE4R01A]

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

8. Reverse clutch

9. High clutch

10. Brake band

11. Forward clutch

12. Overrun clutch

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

3. High clutch

4. Brake band

5. Forward clutch

6. Overrun clutch

7. Low & reverse brake

AT-450

Offensive
smell at fluid
charging pipe.

ON vehicle

1. Fluid level

AT-414

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

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

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.)

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.

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.

G/OR

Torque converter
clutch solenoid
valve

When A/T performs lock-up.

Battery voltage

When A/T does not perform lock-up.

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

—

W/R

Power source

When turning ignition switch to ON.

Battery voltage

When turning ignition switch to OFF.

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

AT-243

[RE4R01A]

L/W

Shift solenoid
valve A

When shift solenoid valve A operates
(When driving in D

or D

Battery voltage

When shift solenoid valve A does not
operate
(When driving in D

or D

L/Y

Shift solenoid
valve B

When shift solenoid valve B operates
(When driving in D

or D

Battery voltage

When shift solenoid valve B does not
operate
(When driving in D

or D

O/D OFF indica-
tor lamp

When setting overdrive control
switch in OFF position.

When setting overdrive control
switch in ON position.

Battery voltage

15*1

Y/G

OBD-II

—

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.

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.

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).

W/R

Power source
(Same as No. 10)

When turning ignition switch to ON

Battery voltage

When turning ignition switch to OFF

L/B

Overrun clutch
solenoid valve

When overrun clutch solenoid valve
operates.

Battery voltage

When overrun clutch shift solenoid
valve does not operates.

Overdrive control
switch

When setting overdrive control
switch in OFF position

When setting overdrive control
switch in ON position

Battery voltage

ASCD O/D cut
signal

When ASCD permits O/D.

5 - 8V

When ASCD requires O/D to be OFF.

Termi-

nal No.

Wire color

Item

Condition

Judgement stan-

dard (Approx.)

AT-244

[RE4R01A]

TROUBLE DIAGNOSIS — GENERAL DESCRIPTION

B/Y

Ground

—

G/B

PNP switch 1
position

When setting selector lever to 1 posi-
tion.

Battery voltage

When setting selector lever to other
position.

G/W

PNP switch 2
position

When setting selector lever to 2 posi-
tion.

Battery voltage

When setting selector lever to other
position.

R/Y

Power source
(Memory back-up)

When turning ignition switch to ON.

Battery voltage

When turning ignition switch to OFF.

Battery voltage

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.

30*2

Y/R

DATA LINK CON-

NECTOR data in

—

31*2

GY/L

DATA LINK CON-

NECTOR data out

—

B/W

Throttle position
sensor (Power
source)

Ignition switch ON

4.5 - 5.5V

Ignition switch OFF

PNP switch D
position

When setting selector lever to D
position.

Battery voltage

When setting selector lever to other
position.

Y/R

PNP switch R
position

When setting selector lever to R
position.

Battery voltage

When setting selector lever to other
position.

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.

38*3

Turbine revolution
sensor (mea-
sured in AC
range)

When engine runs at approximately
1,000 rpm.

1.2V

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.)

Content .. 66 67 68 69 ..