Infiniti I30 (A33). Manual — part 20
7
CHECK SHIFT DOWN (D
4
L/U TO D
4
)
1. Release accelerator pedal.
SAT958I
2. Is lock-up released when accelerator pedal is released?
Yes or No
Yes
©
GO TO 8.
No
©
Go to “14. Lock-up Is Not Released”, AT-252. Continue ROAD TEST.
8
CHECK SHIFT DOWN (D
4
TO D
3
)
1. Decelerate vehicle by applying foot brake lightly.
SAT959I
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 “Cruise Test — Part 2”, AT-78.
No
©
Go to “15. Engine Speed Does Not Return To Idle (Light Braking D
4
,
D
3
)”, AT-253.
Continue ROAD TEST.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-77
Cruise Test — Part 2
=NHAT0029S0405
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.
SAT495G
4. Does vehicle start from D
1
?
Read gear position.
Yes or No
Yes
©
GO TO 2.
No
©
Go to “16. Vehicle Does Not Start From D
1
”, AT-256. Continue ROAD TEST.
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.
SAT404H
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 “9. A/T Does Not Shift: D
1
,
D
2
Or Does Not Kickdown: D
4
,
D
2
”, AT-239. Con-
tinue ROAD TEST.
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-78
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.
Specified speed when shifting from D
2
to D
3
:
Refer to Shift schedule, AT-382.
SAT960I
Yes or No
Yes
©
GO TO 4.
No
©
Go to “10. A/T Does Not Shift: D
2
,
D
3
”, AT-242. Continue ROAD TEST.
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.
SAT405H
Yes or No
Yes
©
1. Stop vehicle.
2. Go to “CRUISE TEST — Part 3”, AT-80.
No
©
Go to “11. A/T Does Not Shift: D
3
,
D
4
”, AT-245. Continue ROAD TEST.
GI
MA
EM
LC
EC
FE
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-79
Cruise Test — Part 3
=NHAT0029S0406
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
.
SAT812A
4. Release accelerator pedal.
SAT813A
5. Set overdrive control switch to OFF position while driving in D
4
.
6. Does A/T shift from D
4
to D
3
(O/D OFF)?
Read gear position and vehicle speed.
SAT999I
Yes or No
Yes
©
GO TO 2.
No
©
Go to “17. A/T Does Not Shift: D
4
,
D
3
, When Overdrive Control Switch ON
,
OFF,
AT-257. Continue ROAD TEST.
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-80
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