Infiniti QX4 (R50). Manual — part 20
Cruise Test — Part 3
=NBAT0024S0406
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
©
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.
SAT999IA
Yes or No
Yes
©
GO TO 3.
No
©
Go to “17. A/T Does Not Shift: D
4
,
D
3
, When Overdrive Control Switch “ON”
,
“OFF”,
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-77
3
CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT999IA
Yes or No
Yes
©
GO TO 4.
No
©
Go to “15. Engine Speed Does Not Return To Idle (Light Braking D
4
,
D
3
)”, AT-250.
4
CHECK SHIFT DOWN (D
3
TO D
2
)
1. Move selector lever from “D” to “2” position while driving in D
3
(O/D OFF).
2. Does A/T shift from D
3
(O/D OFF) to 2
2
?
Read gear position.
SAT791GB
Yes or No
Yes
©
GO TO 5.
No
©
Go to “18. A/T Does Not Shift: D
3
,
D
2
, When Selector Lever “D”
,
“2” Position”,
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-78
5
CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT791GB
Yes or No
Yes
©
GO TO 6.
No
©
Go to “15. Engine Speed Does Not Return To Idle (Light Braking D
4
,
D
3
)”, AT-250.
6
CHECK SHIFT DOWN (2
2
TO 1
1
)
1. Move selector lever from “2” to “1” position while driving in 2
2
.
2. Does A/T shift from 2
2
to 1
1
position?
SAT778B
Yes or No
Yes
©
GO TO 7.
No
©
Go to “19. A/T Does Not Shift: 2
2
,
1
1
, When Selector lever “2”
,
“1” Position”, AT-255.
GI
MA
EM
LC
EC
FE
TF
PD
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-79
7
CHECK ENGINE BRAKE
Does vehicle decelerate by engine brake?
SAT778B
Yes or No
Yes
©
1. Stop vehicle.
2. Perform self-diagnosis. Refer to TCM SELF-DIAGNOSTIC PROCEDURE (No Tools),
No
©
Go to “20. Vehicle Does Not Decelerate By Engine Brake”, AT-256.
TROUBLE DIAGNOSIS — BASIC INSPECTION
Road Test (Cont’d)
AT-80
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