Infiniti Q45 (FY33). Manual — part 19
SAT812A
CRUISE TEST — Part 3
SAT813A
SAT999I
SAT791GA
SAT778B
1. Confirm overdrive control switch is in
“ON” position.
2. Confirm selector lever is in “D” position.
Accelerate vehicle using half-throttle to
“D
4
”.
Release accelerator pedal.
Set overdrive control switch to “OFF” posi-
tion while driving in “D
4
”.
Does A/T shift from “D
4
” to “D
3
” (O/D
OFF)?
Read gear position and
vehicle speed.
Yes
E
No
Go to “17. A/T Does Not
Shift: D
4
,
D
3
, When
Overdrive Control Switch
“ON”
,
“OFF”, AT-175.
Continue ROAD TEST.
Does vehicle decelerate by engine brake?
Yes
E
No
Go to “15. Engine Speed
Does Not Return To Idle
(Light Braking D
4
,
D
3
)”,
AT-174.
Continue ROAD TEST.
Move selector lever from “D” to “2” position
while driving in “D
3
” (O/D OFF).
Does A/T shift from “D
3
” (O/D OFF) to
“2
2
”?
Read gear position.
Yes
E
No
Go to “18. A/T Does Not
Shift: D
3
,
D
2
, When
Selector Lever “D”
,
“2”
Position”, AT-176.
Continue ROAD TEST.
Does vehicle decelerate by engine brake?
Yes
E
No
Go to “15. Engine Speed
Does Not Return To Idle
(Light Braking D
4
,
D
3
)”,
AT-174.
Continue ROAD TEST.
1. Move selector lever from “2” to “1” posi-
tion while driving in “2
2
”.
2. Does A/T shift from “2
2
” to “1
1
” position?
Read gear position.
Yes
E
No
Go to “19. A/T Does Not
Shift: 2
2
,
1
1
, When
Selector Lever “2”
,
“1”
Position”, AT-176.
Continue ROAD TEST.
Does vehicle decelerate by engine brake?
Yes
E
No
Go to “20. Vehicle Does
Not Decelerate By Engine
Brake”, AT-177.
Continue ROAD TEST.
1. Stop vehicle.
2. Perform self-diagnosis. Refer to TCM
SELF-DIAGNOSTIC PROCEDURE (No
Tools), AT-49.
GI
MA
EM
LC
EC
FE
PD
FA
RA
BR
ST
RS
BT
HA
EL
IDX
TROUBLE DIAGNOSIS — Basic Inspection
Road Test (Cont’d)
H
H
H
H
H
H
H
H
H
H
H
AT-73
Symptom Chart
F
ON vehicle
E F
OFF vehicle
E
Reference page (AT-
)
Reference
page
(A
T
-
)
Numbers are arranged in the order of
inspection.
Perform inspections starting with number
one and work up. Circled numbers indicate
that the transmission must be removed
from the vehicle.
Fluid
level
Control
linkage
adjustment
PNP
switch
adjustment
Throttle
position
sensor
(Adjustment)
Revolution
sensor
and
vehicle
speed
sensor
Engine
speed
signal
Engine
idling
speed
(EC
Line
pressure
Control
valve
assembly
Shift
solenoid
valve
A
Shift
solenoid
valve
B
Line
pressure
solenoid
valve
T
orque
converter
clutch
solenoid
valve
Overrun
clutch
solenoid
valve
A/T
fluid
temperature
sensor
Accumulator
N-D
Accumulator
1-2
Accumulator
2-3
Accumulator
3-4
(N-R)
Ignition
switch
and
(EL
section)
T
orque
converter
Oil
pump
Reverse
clutch
High
clutch
Forward
clutch
Forward
one-way
clutch
Overrun
clutch
Low
one-way
clutch
Low
&
reverse
brake
Brake
band
T
urbine
revolution
sensor
Parking
pawl
components
Engine does not start in “N”, “P” positions.
.
2
3
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
1
.
.
.
.
.
.
.
.
.
.
.
.
Engine starts in position other than “N” and
“P”.
.
1
2
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
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.
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.
.
.
.
.
.
.
.
.
.
—
Transmission noise in “P” and “N” posi-
tions.
1
.
.
3
4
5
.
2
.
.
.
.
.
.
.
.
.
.
.
.
q
7
q
6
.
.
.
.
.
.
.
.
.
.
Vehicle moves when changing into “P”
position or parking gear does not disen-
gage when shifted out of “P” position.
.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
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.
.
.
.
.
.
.
q
2
Vehicle runs in “N” position.
.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
2
.
.
.
q
4
.
q
3
.
q
5
.
.
.
.
.
Vehicle will not run in “R” position (but runs
in “D”, “2” and “1” positions). Clutch slips.
Very poor acceleration.
.
1
.
.
.
.
.
2
4
.
.
3
.
.
.
.
.
.
.
.
.
.
q
5
q
6
q
7
.
q
8
.
q
9
.
.
.
—
Vehicle braked when shifting into “R” posi-
tion.
1
2
.
.
.
.
.
3
5
.
.
4
.
.
.
.
.
.
.
.
.
.
.
q
6
q
8
.
q
9
.
.
q
7
.
.
—
Sharp shock in shifting from “N” to “D” posi-
tion.
.
.
.
2
.
5
1
3
7
.
.
6
.
.
4
8
.
.
.
.
.
.
.
.
q
10
.
.
.
.
.
q
9
.
—
Vehicle will not run in “D” and “2” positions
(but runs in “1” and “R” position).
.
1
.
.
.
.
.
.
.
.
.
.
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.
.
.
.
.
q
2
.
.
.
.
Vehicle will not run in “D”, “1” and “2” posi-
tions (but runs in “R” position). Clutch slips.
Very poor acceleration.
1
.
.
.
.
.
.
2
4
.
.
3
.
.
.
5
.
.
.
.
.
.
q
6
q
7
q
8
q
9
.
q
10
.
.
.
.
—
Clutches or brakes slip somewhat in start-
ing.
1
2
.
3
.
.
.
4
6
.
.
5
.
.
.
7
.
.
8
.
q
13
q
12
q
10
.
q
9
.
.
.
q
11
.
.
.
—
Excessive creep.
.
.
.
.
.
.
1
.
.
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.
.
.
.
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.
.
.
No creep at all.
1
.
.
.
.
.
.
2
3
.
.
.
.
.
.
.
.
.
.
.
q
6
q
5
.
.
q
4
.
.
.
.
.
.
.
—
Failure to change gear from “D
1
” to “D
2
”.
.
2
1
.
5
.
.
.
4
3
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
6
.
.
—
Failure to change gear from “D
2
” to “D
3
”.
.
2
1
.
5
.
.
.
4
.
3
.
.
.
.
.
.
.
.
.
.
.
.
q
6
.
.
.
.
.
q
7
.
.
—
Failure to change gear from “D
3
” to “D
4
”.
.
2
1
.
4
.
.
.
.
3
.
.
.
.
5
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
6
.
.
Too high a gear change point from “D
1
” to
“D
2
”, from “D
2
” to “D
3
”, from “D
3
” to “D
4
”.
.
.
.
1
2
.
.
.
.
3
4
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
—
Gear change directly from “D
1
” to “D
3
”
occurs.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
2
.
.
.
.
.
.
.
.
.
.
.
.
q
3
.
.
—
Engine stops when shifting lever into “R”,
“D”, “2” and “1”.
.
.
.
.
.
.
1
.
3
.
.
.
2
.
.
.
.
.
.
.
q
4
.
.
.
.
.
.
.
.
.
.
.
—
Too sharp a shock in change from “D
1
” to
“D
2
”.
.
.
.
1
.
.
.
2
4
.
.
.
.
.
5
.
3
.
.
.
.
.
.
.
.
.
.
.
.
q
6
.
.
—
Too sharp a shock in change from “D
2
” to
“D
3
”.
.
.
.
1
.
.
.
2
4
.
.
.
.
.
.
.
.
3
.
.
.
.
.
q
5
.
.
.
.
.
q
6
.
.
TROUBLE DIAGNOSIS — General Description
AT-74
F
ON vehicle
E F
OFF vehicle
E
Reference page (AT-
)
Reference
page
(A
T
-
)
Numbers are arranged in the order of
inspection.
Perform inspections starting with number
one and work up. Circled numbers indicate
that the transmission must be removed
from the vehicle.
Fluid
level
Control
linkage
adjustment
PNP
switch
adjustment
Throttle
position
sensor
(Adjustment)
Revolution
sensor
and
vehicle
speed
sensor
Engine
speed
signal
Engine
idling
speed
(EC
Line
pressure
Control
valve
assembly
Shift
solenoid
valve
A
Shift
solenoid
valve
B
Line
pressure
solenoid
valve
T
orque
converter
clutch
solenoid
valve
Overrun
clutch
solenoid
valve
A/T
fluid
temperature
sensor
Accumulator
N-D
Accumulator
1-2
Accumulator
2-3
Accumulator
3-4
(N-R)
and
(EL
section)
T
orque
converter
Oil
pump
Reverse
clutch
High
clutch
Forward
clutch
Forward
one-way
clutch
Overrun
clutch
Low
one-way
clutch
Low
&
reverse
brake
Brake
band
T
urbine
revolution
sensor
Parking
pawl
components
—
Too sharp a shock in change from
“D
3
” to “D
4
”.
.
.
.
1
.
.
.
2
4
.
.
.
.
.
.
.
.
.
3
.
.
.
.
.
.
.
q
6
.
.
q
5
.
.
—
Almost no shock or clutches slipping in
change from “D
1
” to “D
2
”.
1
.
.
2
.
.
.
3
5
.
.
.
.
.
.
.
4
.
.
.
.
.
.
.
.
.
.
.
.
q
6
.
.
—
Almost no shock or slipping in change from
“D
2
” to “D
3
”.
1
.
.
2
.
.
.
3
5
.
.
.
.
.
.
.
.
4
.
.
.
.
.
q
6
.
.
.
.
.
q
7
.
.
—
Almost no shock or slipping in change from
“D
3
” to “D
4
”.
1
.
.
2
.
.
.
3
5
.
.
.
.
.
.
.
.
.
4
.
.
.
.
q
6
.
.
.
.
.
q
7
.
.
—
Vehicle braked by gear change from “D
1
” to
“D
2
”.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
2
q
4
.
.
.
q
5
q
3
.
.
.
—
Vehicle braked by gear change from “D
2
” to
“D
3
”.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
2
.
.
—
Vehicle braked by gear change from “D
3
” to
“D
4
”.
1
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
q
4
.
.
q
3
q
2
.
.
.
.
.
—
Maximum speed not attained. Acceleration
poor.
1
.
2
.
.
.
.
.
5
3
4
.
.
.
.
.
.
.
.
.
q
11
q
10
q
6
q
7
.
.
.
.
q
9
q
8
.
.
—
Failure to change gear from “D
4
” to “D
3
”.
1
.
.
2
.
.
.
.
6
4
.
5
.
3
.
.
.
.
.
.
.
.
.
.
.
.
q
8
.
q
7
.
.
.
—
Failure to change gear from “D
3
” to “D
2
” or
from “D
4
” to “D
2
”.
1
.
.
2
.
.
.
.
5
3
4
.
.
.
.
.
.
.
.
.
.
.
.
q
6
.
.
.
.
.
q
7
.
.
—
Failure to change gear from “D
2
” to “D
1
” or
from “D
3
” to “D
1
”.
1
.
.
2
.
.
.
.
5
3
4
.
.
.
.
.
.
.
.
.
.
.
.
q
7
.
.
.
q
6
.
q
8
.
.
—
Gear change shock felt during deceleration
by releasing accelerator pedal.
.
.
.
1
.
.
.
2
4
.
.
.
.
3
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
—
Too high a change point from “D
4
” to “D
3
”,
from “D
3
” to “D
2
”, from “D
2
” to “D
1
”.
.
.
.
1
2
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
—
Kickdown does not operate when depress-
ing pedal in “D
4
” within kickdown vehicle
speed.
.
.
.
1
2
.
.
.
.
3
4
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
—
Kickdown operates or engine overruns
when depressing pedal in “D
4
” beyond kick-
down vehicle speed limit.
.
.
.
2
1
.
.
.
.
3
4
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
.
—
Races extremely fast or slips in changing
from “D
4
” to “D
3
” when depressing pedal.
1
.
.
2
.
.
.
3
5
.
.
4
.
.
.
.
.
.
.
.
.
.
.
q
6
q
7
.
.
.
.
.
.
.
—
Races extremely fast or slips in changing
from “D
4
” to “D
2
” when depressing pedal.
1
.
.
2
.
.
.
3
6
5
.
4
.
.
.
.
.
.
.
.
.
.
.
.
q
8
.
.
.
.
q
7
.
.
—
Races extremely fast or slips in changing
from “D
3
” to “D
2
” when depressing pedal.
1
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