Nissan Frontier D22. Manual — part 67
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-237
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
Slips/Will Not
Engage
Almost no
shock or slip-
ping in
change from
D
2
to D
3
.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Line pressure test
4. Control valve assembly
OFF vehicle
5. High clutch
6. Forward clutch
Almost no
shock or slip-
ping in
change from
D
3
to D
4
.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Line pressure test
4. Control valve assembly
OFF vehicle
5. High clutch
6. Brake band
Races
extremely fast
or slips in
changing from
D
4
to D
3
when
depressing
pedal.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Line pressure test
4. Line pressure solenoid valve
5. Control valve assembly
OFF vehicle
6. High clutch
7. Forward clutch
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
AT-238
[RE4R01A]
TROUBLE DIAGNOSIS — BASIC INSPECTION
Slips/Will Not
Engage
Races
extremely fast
or slips in
changing from
D
4
to D
2
when
depressing
pedal.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Line pressure test
4. Line pressure solenoid valve
5. Shift solenoid valve A
6. Control valve assembly
OFF vehicle
7. Brake band
8. Forward clutch
Races
extremely fast
or slips in
changing from
D
3
to D
2
when
depressing
pedal.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Line pressure test
4. Line pressure solenoid valve
5. Control valve assembly
6. A/T fluid temperature sensor
OFF vehicle
7. Brake band
8. Forward clutch
9. High clutch
Races
extremely fast
or slips in
changing from
D
4
or D
3
to
D
1
when
depressing
pedal.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Line pressure test
4. Line pressure solenoid valve
5. Control valve assembly
OFF vehicle
6. Forward clutch
7. Forward one-way clutch
8. Low one-way clutch
Slips/Will Not
Engage
Vehicle will
not run in any
position.
ON vehicle
1. Fluid level
2. Manual control linkage adjustment
3. Line pressure test
4. Line pressure solenoid valve
OFF vehicle
5. Oil pump
6. High clutch
7. Brake band
8. Low & reverse brake
9. Torque converter
10. Parking pawl components
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-239
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
NOT USED
Engine cannot
be started in P
and N posi-
tions.
ON vehicle
1. Ignition switch and starter
2. Manual control linkage adjustment
3. Park/neutral position (PNP) switch
adjustment
Engine starts
in positions
other than P
and N.
ON vehicle
1. Manual control linkage adjustment
2. Park/neutral position (PNP) switch
adjustment
Transmission
noise in P and
N positions.
ON vehicle
1. Fluid level
2. Line pressure test
3. Throttle position sensor (Adjust-
ment)
4. Vehicle speed sensor·A/T (Revolu-
tion sensor) and vehicle speed sen-
sor·MTR
5. Engine speed signal
OFF vehicle
6. Oil pump
7. Torque converter
NOT USED
Vehicle
moves when
changing into
P position or
parking gear
does not dis-
engage when
shifted out of
P position.
ON vehicle
1. Manual control linkage adjustment
OFF vehicle
2. Parking pawl components
Vehicle runs
in N position.
ON vehicle
1. Manual control linkage adjustment
OFF vehicle
2. Forward clutch
3. Reverse clutch
4. Overrun clutch
Vehicle
braked when
shifting into R
position.
ON vehicle
1. Fluid level
2. Manual control linkage adjustment
3. Line pressure test
4. Line pressure solenoid valve
5. Control valve assembly
OFF vehicle
6. High clutch
7. Brake band
8. Forward clutch
9. Overrun clutch
Excessive
creep.
ON vehicle
1. Engine idling rpm
Engine stops
when shifting
lever into R,
D, 2 and 1.
ON vehicle
1. Engine idling rpm
2. Torque converter clutch solenoid
valve
3. Control valve assembly
OFF vehicle
4. Torque converter
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
AT-240
[RE4R01A]
TROUBLE DIAGNOSIS — BASIC INSPECTION
NOT USED
Vehicle
braked by
gear change
from D
1
to D
2
.
ON vehicle
1. Fluid level
OFF vehicle
2. Reverse clutch
3. Low & reverse brake
4. High clutch
5. Low one-way clutch
Vehicle
braked by
gear change
from D
2
to D
3
.
ON vehicle
1. Fluid level
OFF vehicle
2. Brake band
Vehicle
braked by
gear change
from D
3
to D
4
.
ON vehicle
1. Fluid level
OFF vehicle
2. Overrun clutch
3. Forward one-way clutch
4. Reverse clutch
Maximum
speed not
attained.
Acceleration
poor.
ON vehicle
1. Fluid level
2. Park/neutral position (PNP) switch
adjustment
3. Shift solenoid valve A
4. Shift solenoid valve B
5. Control valve assembly
OFF vehicle
6. Reverse clutch
7. High clutch
8. Brake band
9. Low & reverse brake
10. Oil pump
11. Torque converter
NOT USED
Transmission
noise in D, 2,
1 and R posi-
tions.
ON vehicle
1. Fluid level
ON vehicle
2. Torque converter
Engine brake
does not oper-
ate in “1” posi-
tion.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
2. Manual control linkage adjustment
3. Throttle position sensor (Adjust-
ment)
4. Vehicle speed sensor·A/T (Revolu-
tion sensor) and vehicle speed sen-
sor·MTR
5. Shift solenoid valve A
6. Control valve assembly
7. Overrun clutch solenoid valve
OFF vehicle
8. Overrun clutch
9. Low & reverse brake
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
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