Nissan Frontier D22. Manual — part 66
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-233
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
No Down Shift
Failure to
change gear
from D
4
to D
3
.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Overrun clutch solenoid valve
4. Shift solenoid valve A
5. Line pressure solenoid valve
6. Control valve assembly
OFF vehicle
7. Low & reverse brake
8. Overrun clutch
Failure to
change gear
from D
3
to D
2
or from D
4
to
D
2
.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Shift solenoid valve A
4. Shift solenoid valve B
5. Control valve assembly
OFF vehicle
6. High clutch
7. Brake band
Failure to
change gear
from D
2
to D
1
or from D
3
to
D
1
.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Shift solenoid valve A
4. Shift solenoid valve B
5. Control valve assembly
OFF vehicle
6. Low one-way clutch
7. High clutch
8. Brake band
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
AT-234
[RE4R01A]
TROUBLE DIAGNOSIS — BASIC INSPECTION
No Down Shift
Failure to
change from
D
3
to 2
2
when chang-
ing lever into
2 position.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
2. Throttle position sensor (Adjust-
ment)
3. Overrun clutch solenoid valve
4. Shift solenoid valve B
5. Shift solenoid valve A
6. Control valve assembly
7. Manual control linkage adjustment
OFF vehicle
8. Brake band
9. Overrun clutch
Does not
change from
1
2
to 1
1
in 1
position.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
2. Vehicle speed sensor·A/T (Revolu-
tion sensor) and vehicle speed sen-
sor·MTR
3. Shift solenoid valve A
4. Control valve assembly
5. Overrun clutch solenoid valve
OFF vehicle
6. Overrun clutch
7. Low & reverse brake
No Up Shift
Failure to
change gear
from D
1
to D
2
.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
2. Manual control linkage adjustment
3. Shift solenoid valve A
4. Control valve assembly
5. Vehicle speed sensor·A/T (Revolu-
tion sensor) and vehicle speed sen-
sor·MTR
OFF vehicle
6. Brake band
Failure to
change gear
from D
2
to D
3
.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
2. Manual control linkage adjustment
3. Shift solenoid valve B
4. Control valve assembly
5. Vehicle speed sensor·A/T (Revolu-
tion sensor) and vehicle speed sen-
sor·MTR
OFF vehicle
6. High clutch
7. Brake band
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-235
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
No Up Shift
Failure to
change gear
from D
3
to D
4
.
ON vehicle
1. Park/neutral position (PNP) switch
adjustment
2. Manual control linkage adjustment
3. Shift solenoid valve A
4. Vehicle speed sensor·A/T (Revolu-
tion sensor) and vehicle speed sen-
sor·MTR
5. A/T fluid temperature sensor
OFF vehicle
6. Brake band
A/T does not
shift to D
4
when driving
with overdrive
control switch
ON.
ON vehicle
1. Throttle position sensor (Adjust-
ment)
2. Park/neutral position (PNP) switch
adjustment
3. Vehicle speed sensor·A/T (Revolu-
tion sensor) and vehicle speed sen-
sor·MTR
4. Shift solenoid valve A
5. Overrun clutch solenoid valve
6. Control valve assembly
7. A/T fluid temperature sensor
8. Line pressure solenoid valve
OFF vehicle
9. Brake band
10. Overrun clutch
Slips/Will Not
Engage
Vehicle will
not run in R
position (but
runs in D, 2
and 1 posi-
tions). Clutch
slips.
Very poor
acceleration.
ON vehicle
1. Manual control linkage adjustment
2. Line pressure test
3. Line pressure solenoid valve
4. Control valve assembly
OFF vehicle
5. Reverse clutch
6. High clutch
7. Forward clutch
8. Overrun clutch
9. Low & reverse brake
Vehicle will
not run in D
and 2 posi-
tions (but runs
in 1 and R
positions).
ON vehicle
1. Manual control linkage adjustment
OFF vehicle
2. Low one-way clutch
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
AT-236
[RE4R01A]
TROUBLE DIAGNOSIS — BASIC INSPECTION
Slips/Will Not
Engage
Vehicle will
not run in D,
1, 2 positions
(but runs in R
position).
Clutch slips.
Very poor
acceleration.
ON vehicle
1. Fluid level
2. Line pressure test
3. Line pressure solenoid valve
4. Control valve assembly
5. Accumulator N-D
OFF vehicle
6. Reverse clutch
7. High clutch
8. Forward clutch
9. Forward one-way clutch
10. Low one-way clutch
Clutches or
brakes slip
somewhat in
starting.
ON vehicle
1. Fluid level
2. Manual control linkage adjustment
3. Throttle position sensor (Adjust-
ment)
4. Line pressure test
5. Line pressure solenoid valve
6. Control valve assembly
7. Accumulator N-D
OFF vehicle
8. Forward clutch
9. Reverse clutch
10. Low & reverse brake
11. Oil pump
12. Torque converter
No creep at
all.
ON vehicle
1. Fluid level
2. Line pressure test
3. Control valve assembly
OFF vehicle
4. Forward clutch
5. Oil pump
6. Torque converter
Almost no
shock or
clutches slip-
ping in
change from
D
1
to D
2
.
ON vehicle
1. Fluid level
2. Throttle position sensor (Adjust-
ment)
3. Line pressure test
4. Accumulator servo release
5. Control valve assembly
OFF vehicle
6. Brake band
Items
Symptom
Condition
Diagnostic Item
Reference Page
VG33E only
VG33ER only
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