Infiniti I35 (A33). Manual — part 20
Cruise Test — Part 1
=NHAT0029S0404
1
CHECK STARTING GEAR (D
1
) POSITION
1. Drive vehicle for approx. 10 minutes to warm engine oil and ATF up to operating temperature.
ATF operating temperature:
50 - 80°C (122 - 176°F)
2. Park vehicle on flat surface.
3. Set selector lever is in D position.
4. Move selector lever to P position.
SAT491K
5. Start engine.
6. Move selector lever to D position.
SAT493K
7. Accelerate vehicle by constantly depressing accelerator pedal half-way.
SAT495G
8. Does vehicle start from D
1
?
Read gear position.
Yes or No
Yes
©
GO TO 2.
No
©
Mark the box of “Vehicle Cannot Be Started From D
1
” on the DIAGNOSTIC WORK-
SHEET. 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
2
CHECK SHIFT UP (D
1
TO D
2
)
Does A/T shift from D
1
to D
2
at the specified speed?
Read gear position, throttle opening and vehicle speed.
Specified speed when shifting from D
1
to D
2
:
Refer to Shift schedule, AT-381.
SAT954I
Yes or No
Yes
©
GO TO 3.
No
©
Mark the box of “A/T Does Not Shift: D
1
,
D
2
Or Does Not Kickdown: D
4
,
D
2
” on the
DIAGNOSTIC WORKSHEET. Continue ROAD TEST.
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-381.
SAT955I
Yes or No
Yes
©
GO TO 4.
No
©
Mark the box of “A/T Does Not Shift: D
2
,
D
3
” on the DIAGNOSTIC WORKSHEET.
Continue ROAD TEST.
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-78
4
CHECK SHIFT UP (D
3
TO D
4
)
Does A/T shift from D
3
to D
4
at the specified speed?
Read gear position, throttle position and vehicle speed.
Specified speed when shifting from D
3
to D
4
:
Refer to shift schedule, AT-381.
SAT956I
Yes or No
Yes
©
GO TO 5.
No
©
Mark the box of “A/T Does Not Shift: D
3
,
D
4
” on the DIAGNOSTIC WORKSHEET.
Continue ROAD TEST.
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%.
Specified speed when lock-up occurs:
Refer to Shift schedule, AT-381.
SAT957I
Yes or No
Yes
©
GO TO 6.
No
©
Mark the box of “A/T Does Not Perform Lock-up” on the DIAGNOSTIC WORKSHEET.
Continue ROAD TEST.
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
©
Mark the box of “A/T Does Not Hold Lock-up Condition” on the DIAGNOSTIC WORK-
SHEET. 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
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
©
Mark the box of “Lock-up Is Not Released” on the DIAGNOSTIC WORKSHEET. Con-
tinue 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-81.
No
©
Mark the box of “Engine Speed Does Not Return To Idle (Light Braking D
4
,
D
3
)” on the
DIAGNOSTIC WORKSHEET. Continue ROAD TEST.
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-80
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