2003 NISSAN TEANA oil drain

A/T CONTROL SYSTEM
AT-33
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Control ValveBCS000ZW
FUNCTION OF CONTROL VALVES
Valve name Function
Pressure regulator valve, plug and sleeve
plugRegulates oil discharged from the oil pump to provide optimum line pressure for all driv-
ing conditions.
Pressure modifier valve and sleeve Used as a signal supplementary valve to the pressure regulator valve. Regulates pres-
sure-modifier pressure (signal pressure) which controls optimum line pressure for all
driving conditions.
Pilot valve Regulates line pressure to maintain a constant pilot pressure level which controls lock-up
mechanism, overrun clutch, shift timing.
Accumulator control valve Regulates accumulator back-pressure to pressure suited to driving conditions.
Manual valve Directs line pressure to oil circuits corresponding to select positions.
Hydraulic pressure drains when the shift lever is in Neutral.
Shift valve A Simultaneously switches three oil circuits using output pressure of shift solenoid valve A
to meet driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and upshifting (1st → 2nd → 3rd → 4th gears/4th →
3rd → 2nd → 1st gears) in combination with shift valve B.
Shift valve B Simultaneously switches two oil circuits using output pressure of shift solenoid valve B in
relation to driving conditions (vehicle speed, throttle opening, etc.).
Provides automatic downshifting and upshifting (1st → 2nd → 3rd → 4th gears/4th →
3rd → 2nd → 1st gears) in combination with shift valve A.
Overrun clutch control valve Switches hydraulic circuits to prevent engagement of the overrun clutch simultaneously
with application of the brake band in D
4 . (Interlocking occurs if the overrun clutch
engages during D
4 .)
1st reducing valve Reduces low & reverse brake pressure to dampen engine-brake shock when downshift-
ing from the 1st position 1
2 to 11 .
Overrun clutch reducing valve Reduces oil pressure directed to the overrun clutch and prevents engine-brake shock.
In the 1st and 2nd positions, line pressure acts on the overrun clutch reducing valve to
increase the pressure-regulating point, with resultant engine brake capability.
Torque converter relief valve Prevents an excessive rise in torque converter pressure.
Torque converter clutch control valve, plug
and sleeveActivates or inactivates the lock-up function.
Also provides smooth lock-up through transient application and release of the lock-up
system.
1-2 accumulator valve and piston Lessens the shock find when the 2nd gear band servo contracts, and provides smooth
shifting.
3-2 timing valve Switches the pace that oil pressure is released depending on vehicle speed; maximizes
the high clutch release timing, and allows for soft downshifting.
Shuttle valve Determines if the overrun clutch solenoid valve should control the 3-2 timing valve or the
overrun clutch control valve and switches between the two.
Cooler check valve At low speeds and with a small load when a little heat is generated, saves the volume of
cooler flow, and stores the oil pressure for lock-up.

ON-VEHICLE SERVICE
AT-225
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ON-VEHICLE SERVICEPFP:00000
Control Valve Assembly and AccumulatorsBCS00154
COMPONENTS
REMOVAL AND INSTALLATION
Removal
1. Remove front tire LH from vehicle.
2. Remove LH splash guard. (Front fender side)
1. A/T 2. Lip seal 3. O-ring
4. Servo release accumulator piston 5. O-ring 6. Return spring
7. Control valve assembly 8. Oil pan gasket 9. Drain plug gasket
10. Drain plug 11. Magnet 12. Oil pan
13. Oil pan fitting bolt 14. Snap ring 15. O-ring
16. O-ring 17. N-D accumulator piston 18. O-ring
19. Return spring
SCIA4320E
SCIA2783E

AT-226
ON-VEHICLE SERVICE

3. Disconnect terminal cord assembly harness connector.
4. Remove snap ring from terminal body.
5. Remove terminal cord assembly by pushing terminal body into
transaxle case.
6. Remove engine under cover.
7. Remove front LH nut of front suspension member, and then
lower front LH of front suspension member to secure a space for
removing control valve assembly.
8. Drain ATF from A/T. Refer to AT- 1 5 , "
Changing A/T Fluid" .
9. Remove oil pan and oil pan gasket.
10. Check foreign materials in oil pan to help determine causes of
malfunction. If the ATF is very dark, smells burned, or contains
foreign particles, frictional material (clutches, band) may need
replacement. A tacky film that will not wipe clean indicates var-
nish build up. Varnish can cause valves, servo, and clutches to
stick and can inhibit pump pressure.

If frictional material is detected, replace radiator after
repair of A/T. Refer to CO-13, "
RADIATOR" , CO-16,
"RADIATOR (ALUMINUM TYPE)" (QR engine) or CO-37,
"RADIATOR" , CO-40, "RADIATOR (ALUMINUM TYPE)"
(VQ engine).
11. Remove control valve assembly fixing bolts A, B and C .
SCIA4853E
SCIA3153E
SCIA3476E

OVERHAUL
AT-251
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10. O-ring 11. Turbine revolution sensor (power
train revolution sensor)12. Bracket
13. Anchor end pin 14. Lock nut 15. Transaxle case
16. Brake band 17. Bearing retainer 18. Seal ring
19. Radial needle bearing 20. Snap ring 21. Reduction pinion gear
22. Reduction pinion gear bearing inner
race23. Reduction pinion gear bearing outer
race24. Strut
25. O-ring 26. O-ring 27. Servo release accumulator piston
28. O-ring 29. Return spring 30. Control valve assembly
31. Oil pan gasket 32. Drain plug gasket 33. Drain plug
34. Magnet 35. Oil pan 36. Oil pan fitting bolt
37. Low & reverse brake tube 38. Oil sleeve 39. O-ring
40. Snap ring 41. O-ring 42. N-D accumulator piston
43. Return spring 44. Lip seal 45. Parking rod
46. Retaining pin 47. Manual shaft oil seal 48. Detent spring
49. Manual shaft 50. Retaining pin 51. Manual plate
52. Parking rod plate 53. O/D servo piston 54. O/D servo piston retainer
55. O/D servo piston retainer fitting bolt 56. O-ring 57. D-ring
58. Servo piston retainer 59. O-ring 60. E-ring
61. Spring retainer 62. O/D servo return spring 63. D-ring
64. Band servo piston 65. Band servo thrust washer 66. Band servo piston stem
67. 2nd servo return spring 68. Parking pawl 69. Parking shaft
70. Return spring 71. Paring pawl spacer 72. PNP switch
73. Idler gear bearing 74. Idler gear 75. Idler gear lock nut
76. Reduction pinion gear adjusting
shim77. Output shaft adjusting shim 78. Side cover
Refer to GI section to make sure icons (symbol marks) in the figure. Refer to GI-10, "
Components" .
However, refer to the following symbol for others.
: Apply locking sealant (Loctite #518).

AT-360
ASSEMBLY

CAUTION:

Always replace oil pan fitting bolts as they are self-sealing bolts.

Tighten four bolts in a crisscross pattern to prevent dislocation of gasket.
e. Install drain plug gasket on drain plug.
CAUTION:
Do not reuse drain plug gasket.
f. Tighten drain plug to the specified torque. Refer to AT- 2 4 6 , "
Components" .
22. Install PNP switch according to the following procedures.
a. Set manual shaft in “P” position.
b. Temporarily install PNP switch on manual shaft.
c. Move selector lever to “N” position.
d. Use a pin [3 mm (0.12 in) dia.] for this adjustment.
i. Insert the pin straight into the manual shaft adjustment hole.
ii. Rotate PNP switch until the pin can also be inserted straight into
hole in PNP switch.
e. Tighten PNP switch fitting bolts. Refer to AT- 2 4 6 , "
Components"
.
f. Remove pin from adjustment hole after adjusting PNP switch.
23. Install bracket on transaxle case.
24. Install O-ring on revolution sensor.
CAUTION:

Do not reuse O-ring.

Apply petroleum jelly to O-ring.
25. Install revolution sensor on transaxle case.
26. Install O-ring on turbine revolution sensor (power train revolution sensor).
CAUTION:

Do not reuse O-ring.

Apply petroleum jelly to O-ring.
27. Install turbine revolution sensor (power train revolution sensor) on transaxle case.
28. Install bracket on transaxle case.
29. Install torque converter according to the following procedures.
a. Pour ATF into torque converter.
CAUTION:

Approximately 1 liter (7/8 Imp qt) of fluid is required for a
new torque converter.

When reusing old torque converter, add the same amount
of fluid as was drained.
SCIA3154E
SCIA4930E
SAT428DA

ATC-146
REFRIGERANT LINES

Checking for Refrigerant LeaksBJS000JF
Perform a visual inspection of all refrigeration parts, fittings, hoses and components for signs of A/C lubricant
leakage, damage and corrosion. A/C lubricant leakage may indicate an area of refrigerant leakage. Allow
extra inspection time in these areas when using either an electrical leak detector or fluorescent dye leak
detector (SST: J-42220).
If dye is observed, confirm the leak with an electrical leak detector. It is possible a prior leak was repaired and
not properly cleaned.
When searching for leaks, do not stop when one leak is found but continue to check for additional leaks at all
system components and connections.
When searching for refrigerant leaks using an electrical leak detector, move the probe along the suspected
leak area at 1 to 2 inches per second and no further than 1/4 inch from the component.
CAUTION:
Moving the electrical leak detector probe slower and closer to the suspected leak area will improve the
chances of finding a leak.
Checking System for Leaks Using the Fluorescent Leak DetectorBJS000JG
1. Check A/C system for leaks using the UV lamp and safety goggles (SST: J-42220) in a low sunlight area
(area without windows preferable). Illuminate all components, fittings and lines. The dye will appear as a
bright green/yellow area at the point of leakage. Fluorescent dye observed at the evaporator drain open-
ing indicates an evaporator core assembly (tubes, core or expansion valve) leak.
2. If the suspected area is difficult to see, use an adjustable mirror or wipe the area with a clean shop rag or
cloth, with the UV lamp for dye residue.
3. After the leak is repaired, remove any residual dye using dye cleaner (SST: J-43872) to prevent future
misdiagnosis.
4. Perform a system performance check and verify the leak repair with an approved electrical leak detector.
NOTE:
Other gases in the work area or substances on the A/C components, for example, anti-freeze, windshield
washer fluid, solvents and lubricants, may falsely trigger the leak detector. Make sure the surfaces to be
checked are clean.
Clean with a dry cloth or blow off with shop air.
Do not allow the sensor tip of the detector to contact with any substance. This can also cause false readings
and may damage the detector.
Dye InjectionBJS000JH
(This procedure is only necessary when recharging the system or when the compressor has seized and was
replaced.)
1. Check A/C system static (at rest) pressure. Pressure must be at least 345 kPa (3.45 bar, 3.52 kg/cm
2 , 50
psi).
2. Pour one bottle (1/4 ounce / 7.4 cc) of the A/C refrigerant dye into the injector tool (SST: J-41459).
3. Connect the injector tool to the A/C low-pressure side service valve.
4. Start engine and switch A/C ON.
5. When the A/C operating (compressor running), inject one bottle (1/4 ounce / 7.4 cc) of fluorescent dye
through the low-pressure service valve using dye injector tool (SST: J-41459) (refer to the manufacture's
operating instructions).
6. With the engine still running, disconnect the injector tool from the service valve.
CAUTION:
Be careful the A/C system or replacing a component, pour the dye directly into the open system
connection and proceed with the service procedures.
7. Operate the A/C system for a minimum of 20 minutes to mix the dye with the system oil. Depending on the
leak size, operating conditions and location of the leak, it may take from minutes to days for the dye to
penetrate a leak and become visible.
8. Attach a blue label as necessary.

PRECAUTIONS
BR-3
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PRECAUTIONSPFP:00001
Precautions for Supplemental Restraint System (SRS) “AIR BAG” and “SEAT
BELT PRE-TENSIONER”
BFS000BB
The Supplemental Restraint System such as “AIR BAG” and “SEAT BELT PRE-TENSIONER”, used along
with a front seat belt, helps to reduce the risk or severity of injury to the driver and front passenger for certain
types of collision. Information necessary to service the system safely is included in the SRS and SB section of
this Service Manual.
WARNING:

To avoid rendering the SRS inoperative, which could increase the risk of personal injury or death
in the event of a collision which would result in air bag inflation, all maintenance must be per-
formed by an authorized NISSAN/INFINITI dealer.

Improper maintenance, including incorrect removal and installation of the SRS, can lead to per-
sonal injury caused by unintentional activation of the system. For removal of Spiral Cable and Air
Bag Module, see the SRS section.

Do not use electrical test equipment on any circuit related to the SRS unless instructed to in this
Service Manual. SRS wiring harnesses can be identified by yellow and/or orange harnesses or
harness connectors.
Precautions for Brake SystemBFS000BC

Clean dust on front brake and rear brake with a vacuum dust collector. Do not blow with compressed air.

Recommended fluid is brake fluid “DOT 3 or DOT 4”. Refer to MA-14, "Fluids and Lubricants" .

Do not reuse drained brake fluid.

Be careful not to splash brake fluid on painted areas; it may cause paint damage. If brake fluid is splashed
on painted surfaces of body, immediately wipe it off and them wash it away with water immediately.

To clean or wash all parts of master cylinder, disc brake caliper, use clean brake fluid.

Do not use mineral oils such as gasoline or kerosene. They will ruin rubber parts of the hydraulic system.

Use a flare nut torque wrench when installing brake tube.

When installing brake tube, be sure to check torque.

Before working, turn ignition switch OFF and disconnect electri-
cal connector of ABS actuator and electric unit (control unit) or
battery cables.

Burnish the brake contact surfaces after refinishing or replacing
rotors, after replacing pads, or if a soft pedal occurs at very low
mileage. Refer to BR-32, "
BRAKE BURNISHING PROCE-
DURE" (Front disc brake), BR-39, "BRAKE BURNISHING
PROCEDURE" (Rear disc brake).
WARNING:

Clean brake pads and shoes with a waste cloth, then wipe with a dust collector.
SBR820BA

FRONT DISC BRAKE
BR-29
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INSTALLATION
CAUTION:

Refill with new brake fluid “DOT 3 or DOT 4”.

Do not reuse drained brake fluid.
1. Install disc rotor.
CAUTION:
Align the matching marks of disc rotor and wheel hub,
which were marked at the time of removal when reusing
disc rotor.
2. Install brake caliper assembly to vehicle, and tighten torque
member mounting bolts to the specified torque. Refer to BR-26,
"Components" .
CAUTION:
Before installing torque member to vehicle, wipe oil and
grease on washer seats on steering knuckle and mounting
surface of torque member.
3. Install brake hose to brake caliper assembly, and tighten union bolts to the specified torque. Refer to BR-
26, "Components" .
CAUTION:

Do not reuse copper washers for union bolts.

Connect brake hose aligning with caliper assembly mounting protrusion.
4. Refill with new brake fluid and bleed air. Refer to BR-10, "
Bleeding Brake System" .
5. Check front disc brake for drag.
6. Install tyres to vehicle.
Disassembly and Assembly of Brake Caliper AssemblyBFS000C1
NOTE:
Do not remove torque member, pads, shims, inner shim cover, and pad retainers when disassembling and
assembling cylinder body.
DISASSEMBLY
1. Remove caliper assembly from Vehicle. Refer to BR-28, "Removal and Installation of Brake Caliper
Assembly" .
2. Remove sliding pin bolts, from cylinder body, and remove pads
shims shim cover and pad retainers from torque member.
CAUTION:

When removing pad retainers from torque member, lift
pad retainer in the direction by the arrow (shown in the
figure) so as not to damage it.

Do not drop pads, shims, inner shim cover and pad
retainers from torque member.
3. Remove sliding pins and sliding pin boots from torque member.
SDIA2608E
SBR556E