Nissan Frontier D22. Manual — part 64
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-225
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
5.
CHECK LOCK-UP (D
4
TO D
4
L/U)
Does A/T perform lock-up at the specified speed?
Read vehicle speed, throttle position when lock-up duty becomes 94%.
Yes or No
Yes
>> GO TO 6.
No
>> Go to
AT-378, "12. A/T Does Not Perform Lock-up"
.
6.
CHECK HOLD LOCK-UP
Does A/T hold lock-up condition for more than 30 seconds?
Yes or No
Yes
>> GO TO 7.
No
>> Go to
AT-379, "13. A/T Does Not Hold Lock-up Condition"
7.
CHECK LOCK-UP OFF (D
4
L/U TO D
4
)
1.
Release accelerator pedal.
2.
Is lock-up released when accelerator pedal is released?
Yes or No
Yes
>> GO TO 8.
No
>> Go to
AT-381, "14. Lock-up Is Not Released"
8.
CHECK SHIFT DOWN (D
4
TO D
3
)
1.
Decelerate vehicle by applying foot brake lightly.
2.
Does engine speed return to idle smoothly when A/T is shifted from D
4
to D
3
?
Read gear position and engine speed.
Yes or No
Yes
>> 1. Stop vehicle.
2. Go to
AT-226, "Cruise Test — Part 2"
No
>> Go to
AT-382, "15. Engine Speed Does Not Return To
.
Specified speed when
lock-up occurs
SAT957I
SAT958I
SAT959I
AT-226
[RE4R01A]
TROUBLE DIAGNOSIS — BASIC INSPECTION
Cruise Test — Part 2
1.
CHECK STARTING GEAR (D
1
) POSITION
1.
Confirm overdrive control switch is in ON position.
2.
Confirm selector lever is in D position.
3.
Accelerate vehicle by half throttle again.
4.
Does vehicle start from D
1
?
Read gear position.
Yes or No
Yes
>> GO TO 2.
No
>> Go to
AT-383, "16. Vehicle Does Not Start From D
.
2.
CHECK SHIFT UP AND SHIFT DOWN (D
3
TO D
4
TO D
2
)
1.
Accelerate vehicle to 80 km/h (50 MPH) as shown in illustration.
2.
Release accelerator pedal and then quickly depress it fully.
3.
Does A/T shift from D
4
to D
2
as soon as accelerator pedal is depressed fully?
Read gear position and throttle position.
Yes or No
Yes
>> GO TO 3.
No
>> Go to
AT-372, "9. A/T Does Not Shift: D
3.
CHECK SHIFT UP (D
2
TO D
3
)
Does A/T shift from D
2
to D
3
at the specified speed?
Read gear position, throttle position and vehicle speed.
Yes or No
Yes
>> GO TO 4.
No
>> Go to
AT-374, "10. A/T Does Not Shift: D
.
SAT495G
SAT404H
Specified speed when
shifting from D
2
to D
3
: Refer to
SAT960I
TROUBLE DIAGNOSIS — BASIC INSPECTION
AT-227
[RE4R01A]
D
E
F
G
H
I
J
K
L
M
A
B
AT
4.
CHECK SHIFT UP (D
3
TO D
4
) AND ENGINE BRAKE
Release accelerator pedal after shifting from D
2
to D
3
.
Does A/T shift from D
3
to D
4
and does vehicle decelerate by engine brake?
Read gear position, throttle position and vehicle speed.
Yes or No
Yes
>> 1. Stop vehicle.
2. Go to
AT-228, "Cruise Test — Part 3"
No
>> Go to
AT-376, "11. A/T Does Not Shift: D
SAT405H
AT-228
[RE4R01A]
TROUBLE DIAGNOSIS — BASIC INSPECTION
Cruise Test — Part 3
1.
VEHICLE SPEED D
4
POSITION
1.
Confirm overdrive control switch is in ON position.
2.
Confirm selector lever is in D position.
3.
Accelerate vehicle using half-throttle to D
4
.
>> GO TO 2.
2.
CHECK SHIFT DOWN (D
4
TO D
3
)
1.
Release accelerator pedal.
2.
Set overdrive control switch to OFF position while driving in D
4
.
3.
Does A/T shift from D
4
to D
3
(O/D OFF)?
Read gear position and vehicle speed.
Yes or No
Yes
>> GO TO 3.
No
>> Go to
AT-385, "17. A/T Does Not Shift: D
.
3.
CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
Yes or No
Yes
>> GO TO 4.
No
>> Go to
AT-382, "15. Engine Speed Does Not Return To
SAT812A
SAT999I
SAT999I
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