Infiniti G35 (V35) Sedan. Manual — part 1383
TM-224
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
LINE PRESSURE TEST
LINE PRESSURE TEST
Inspection and Judgment
INFOID:0000000000957129
INSPECTION
Line Pressure Test Port
Line Pressure Test Procedure
1.
Inspect the amount of engine oil and replenish if necessary.
2.
Drive the car for about 10 minutes to warm it up so that the ATF reaches in range of 50 to 80
°
C (122 to
176
°
F), then inspect the amount of ATF and replenish if necessary.
NOTE:
The A/T fluid temperature rises in range of 50 to 80
°
C (122 to 176
°
F) during 10 minutes of driving.
3.
Remove the front propeller shaft from vehicle (with AWD models). Refer to
4.
After warming up remove the oil pressure detection plug and
install the oil pressure gauge [SST: ST2505S001(J-34301-C)].
CAUTION:
When using the oil pressure gauge, be sure to use the O-
ring attached to the oil pressure detection plug.
5.
Securely engage the parking brake so that the tires do not turn.
6.
Start the engine, then measure the line pressure at both idle and
the stall speed.
CAUTION:
• Keep the brake pedal pressed all the way down during
measurement.
• When measuring the line pressure at the stall speed, refer
to
TM-223, "Inspection and Judgment"
7.
After the measurements are complete, install the oil pressure detection plug and tighten to the specified
torque. Refer to
CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
JUDGMENT OF LINE PRESSURE TEST
SCIA2187E
LINE PRESSURE
: Refer to
SCIA5309E
LINE PRESSURE TEST
TM-225
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
Judgment Possible
cause
Idle speed
Low for all positions
(“P”, “R”, “N”, “D”, “M”)
Possible causes include malfunctions in the pressure supply system and low oil pump output.
For example
• Oil pump wear
• Pressure regulator valve or plug sticking or spring fatigue
• Oil strainer
⇒
oil pump
⇒
pressure regulator valve passage oil leak
• Engine idle speed too low
Only low for a specific
position
Possible causes include an oil pressure leak in a passage or device related to the position
after the pressure is distributed by the manual valve.
High
Possible causes include a sensor malfunction or malfunction in the line pressure adjustment
function.
For example
• Accelerator pedal position signal malfunction
• A/T fluid temperature sensor malfunction
• Line pressure solenoid malfunction (sticking in OFF state, filter clog, cut line)
• Pressure regulator valve or plug sticking
Stall speed
Oil pressure does not
rise higher than the oil
pressure for idle.
Possible causes include a sensor malfunction or malfunction in the pressure adjustment func-
tion.
For example
• Accelerator pedal position signal malfunction
• TCM breakdown
• Line pressure solenoid malfunction (shorting, sticking in ON state)
• Pressure regulator valve or plug sticking
• Pilot valve sticking or pilot filter clogged
The pressure rises, but
does not enter the stan-
dard position.
Possible causes include malfunctions in the pressure supply system and malfunction in the
pressure adjustment function.
For example
• Accelerator pedal position signal malfunction
• Line pressure solenoid malfunction (sticking, filter clog)
• Pressure regulator valve or plug sticking
• Pilot valve sticking or pilot filter clogged
Only low for a specific
position
Possible causes include an oil pressure leak in a passage or device related to the position
after the pressure is distributed by the manual valve.
TM-226
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
ROAD TEST
ROAD TEST
Description
INFOID:0000000000957130
• The road test inspects overall performance of the A/T and analyzes possible malfunction causes.
• The road test is performed out in the following three stages.
1.
TM-226, "Check Before Engine Is Started"
2.
TM-226, "Check Starting The Engine"
3.
Cruise test
•
TM-227, "Cruise Test - Part 1"
•
TM-228, "Cruise Test - Part 2"
•
TM-228, "Cruise Test - Part 3"
CAUTION:
Always drive vehicle at a safe speed.
• Before beginning the road test, check the test procedure and inspection items.
• Test all inspection items until the symptom is uncovered. Diagnose NG items when all road tests are com-
plete.
Check Before Engine Is Started
INFOID:0000000000957131
1.
CHECK A/T CHECK INDICATOR LAMP
1.
Park vehicle on level surface.
2.
Shift the selector lever to “P” position.
3.
Turn ignition switch OFF and wait at least 10 seconds.
4.
Turn ignition switch ON. (Do not start engine.)
Does A/T CHECK indicator lamp light up for about 2 seconds?
YES
>> Go to
TM-226, "Check Starting The Engine"
NO
>> Stop the road test and go to
Check Starting The Engine
INFOID:0000000000957132
1.
CHECK STARTING THE ENGINE
1.
Park vehicle on level surface.
2.
Shift the selector lever to “P” or “N” position.
3.
Turn ignition switch OFF.
4.
Start the engine.
Does the engine start?
YES
>> GO TO 2.
NO
>> Stop the road test and go to
2.
CHECK STARTING THE ENGINE
1.
Turn ignition switch ON. (Do not start engine.)
2.
Shift the selector lever to “D”, “M” or “R” position.
3.
Start the engine.
Does the engine start in any positions?
YES
>> Stop the road test and go to
NO
>> GO TO 3.
3.
CHECK “P” POSITION FUNCTIONS
1.
Shift the selector lever to “P” position.
2.
Turn ignition switch OFF.
3.
Release the parking brake.
4.
Push the vehicle forward or backward.
5.
Engage the parking brake.
When you push the vehicle with disengaging the parking brake, does it move?
YES
>> Record the malfunction, then continue the rode test.
NO
>> GO TO 4.
ROAD TEST
TM-227
< ON-VEHICLE MAINTENANCE >
[5AT: RE5R05A]
C
E
F
G
H
I
J
K
L
M
A
B
TM
N
O
P
4.
CHECK “N” POSITION FUNCTIONS
1.
Start the engine.
2.
Shift the selector lever to “N” position.
3.
Release the parking brake.
Does vehicle move forward or backward?
YES
>> Record the malfunction, then continue the rode test.
NO
>> GO TO 5.
5.
CHECK SHIFT SHOCK
1.
Engage the brake.
2.
Shift the selector lever to “D” position.
When the A/T is shifted from “N” to “D”, is there an excessive shock?
YES
>> Record the malfunction, then continue the rode test.
NO
>> GO TO 6.
6.
CHECK “R” POSITION FUNCTIONS
1.
Shift the selector lever to “R” position.
2.
Release the brake for 4 to 5 seconds.
Does the vehicle creep backward?
YES
>> GO TO 7.
NO
>> Record the malfunction, then continue the rode test.
7.
CHECK “D” POSITION FUNCTIONS
Inspect whether the vehicle creep forward when the A/T is put into the “D” position.
Does the vehicle creep forward in the “D” position?
YES
>> Go to
TM-227, "Cruise Test - Part 1"
.
NO
>> Record the malfunction and go to
TM-227, "Cruise Test - Part 1"
.
Cruise Test - Part 1
INFOID:0000000000957133
1.
CHECK STARTING OUT FROM D
1
1.
Drive the vehicle for about 10 minutes to warm up the engine oil and ATF.
Appropriate temperature for the ATF: 50 to 80
°
C (122 to 176
°
F)
2.
Park the vehicle on a level surface.
3.
Shift the selector lever to “D” position.
4.
Press the accelerator pedal about half way down to accelerate the vehicle.
With CONSULT-III
Read the value of “GEAR” with “DATA MONITOR” mode. Refer to
TM-114, "CONSULT-III Function (TRANS-
.
Starts from D
1
?
YES
>> GO TO 2.
NO
>> Record the malfunction, then continue the road test.
2.
CHECK SHIFT-UP
Depress the accelerator pedal about half-way and inspect if the vehicle shifts up (D
1
→
D
2
→
D
3
→
D
4
→
D
5
)
at the appropriate speed. Refer to
TM-353, "Vehicle Speed at Which Gear Shifting Occurs"
.
With CONSULT-III
Read the value of “GEAR”, “ACCELE POSI” and “VEHCLE SPEED” with “DATA MONITOR” mode. Refer to
TM-114, "CONSULT-III Function (TRANSMISSION)"
.
Is the inspection result normal?
YES
>> GO TO 3.
NO
>> Record the malfunction, then continue the road test.
3.
CHECK LOCK-UP
When releasing accelerator pedal (closed throttle position signal OFF) from D
5
, check lock-up from D
5
to L/U.
TM-353, "Vehicle Speed at Which Lock-up Occurs/Releases"
.
Нет комментариевНе стесняйтесь поделиться с нами вашим ценным мнением.
Текст