2003 NISSAN TEANA engine

TRANSAXLE ASSEMBLY
AT-245
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Align the positions of tightening bolts for drive plate with those of
torque converter, and temporarily tighten bolts. Then, tighten
bolts with the specified torque.
CAUTION:

When turning crankshaft, turn it clockwise as viewed from
front of engine.

When tightening the tighten bolts for the torque converter
after fixing crankshaft pulley bolts, be sure to confirm the
tightening torque of crankshaft pulley mounting bolts.
Refer to EM-53, "
TIMING CHAIN" (QR engine), EM-173, "TIMING CHAIN" (VQ engine).

After converter is installed to drive plate, rotate crankshaft several turns and make sure that tran-
saxle rotates freely without binding.

Install POS sensor. Refer to EM-145, "Removal and Installation" .

After completing installation, check for A/T fluid leakage, A/T fluid level, and positions of A/T. Refer to AT-
14, "Checking A/T Fluid" , AT- 2 1 5 , "Adjustment of A/T Position" , AT- 2 1 5 , "Checking of A/T Position" . : 52 N·m (5.3 kg-m, 38 ft-lb)
SCIA3138E

ASSEMBLY
AT-361
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b. Install torque converter while aligning notches of torque con-
verter with notches of oil pump.
c. Measure distance “A” to Make sure that torque converter is in
proper position.
SAT429D
Distance “A”
For QR20DE engine models:
19 mm (0.75 in) or more
For VQ23DE engine models:
14 mm (0.55 in) or more
SAT430D

AT-362
SERVICE DATA AND SPECIFICATIONS (SDS)

SERVICE DATA AND SPECIFICATIONS (SDS)PFP:00030
General SpecificationsBCS001PF
*: Refer to MA-14, "RECOMMENDED FLUIDS AND LUBRICANTS" .
Vehicle Speed Which Gear Shifting OccursBCS001PG
FOR QR20DE ENGINE MODELS

At half throttle, the accelerator opening is 4/8 of the full opening.
FOR VQ23DE ENGINE MODELS

At half throttle, the accelerator opening is 4/8 of the full opening.
Vehicle Speed at When Lock-up Occurs/ReleasesBCS001PH
FOR QR20DE ENGINE MODELS
NOTE:

Perform lock-up inspection after warming up engine.

Lock-up vehicle speed may vary depending on the driving conditions and circumstances. Engine QR20DE VQ23DE
automatic transaxle model RE4F04B
automatic transaxle
assemblyModel code number 85X0D 85X0E
Translate gear ratio1st 2.785
2nd 1.545
3rd 1.000
4th 0.694
Reverse 2.272
Final drive 4.425
Recommended fluid Genuine NISSAN ATF Matic Fluid D or equivalent
*
Fluid capacity (Imp qt)8.4 (7-3/8) 8.9 (7-7/8)
Throttle positionVehicle speed km/h (MPH)
D1 → D2D2 → D3D3 → D4D4 → D3D3 → D2D2 → D1
Full throttle51 - 59
(32 - 37)96 - 104
(60 - 65)151 - 159
(94 - 99)147 - 155
(91 - 96)86 - 94
(53 - 58)40 - 48
(25 - 30)
Half throttle33 - 41
(21 - 25)62 - 70
(39 - 43)121 - 129
(75 - 80)77 - 85
(48 - 53)37 - 45
(23 - 28)5 - 13
(3 - 8)
Throttle positionVehicle speed km/h (MPH)
D1 → D2D2 → D3D3 → D4D4 → D3D3 → D2D2 → D1
Full throttle52 - 60
(32 - 37)97 - 105
(60 - 65)153 - 161
(95 - 100)149 - 157
(93 - 98)87 - 95
(54 - 59)41 - 49
(25 - 30)
Half throttle30 - 38
(19 - 24)58 - 66
(36 - 41)116 - 124
(72 - 77)69 - 77
(43 - 48)34 - 42
(21 - 26)5 - 13
(3 - 8)
Throttle position Selector lever positionVehicle speed km/h (MPH)
Lock-up “ON” Lock-up “OFF”
2.0/8 D position 86 - 94 (53 - 58) 61 - 69 (38 - 43)
3rd position 86 - 94 (53 - 58) 83 - 91 (52 - 57)

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-363
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FOR VQ23DE ENGINE MODELS
NOTE:

Perform lock-up inspection after warming up engine.

Lock-up vehicle speed may vary depending on the driving conditions and circumstances.
Stall RevolutionBCS001PI
Line PressureBCS001PJ
Adjusting shims, Needle Bearings, Thrust Washers and Snap RingsBCS001P1
NOTE:
Refer to AT- 2 5 3 , "
Locations of Adjusting Shims, Needle Bearings and Thrust Washers" or AT- 2 5 4 , "Locations
of Snap Rings" .
OUTER DIAMETER AND INNER DIAMETER OF NEEDLE BEARINGS
Unit: mm (in)
OUTER DIAMETER AND INNER DIAMETER OF THRUST WASHER
Unit: mm (in)
OUTER DIAMETER AND INNER DIAMETER OF BEARING RACES AND ADJUSTING SHIMS
Unit: mm (in) Throttle position Selector lever positionVehicle speed km/h (MPH)
Lock-up “ON” Lock-up “OFF”
2.0/8 D position 86 - 94 (53 - 58) 51 - 59 (32 - 37)
3rd position 86 - 94 (53 - 58) 83 - 91 (52 - 57)
Engine type QR20DE VQ23DE
Stall revolution rpm 2,400 - 2,850 2,400 - 2,900
Engine speed rpmLine pressure kPa (bar, kg/cm
2 , psi)
“D”, “3”, “2” and “1” positions “R” position
Idle 500 (5.00, 5.1, 73) 778 (7.78, 7.9, 113)
Stall 1,233 (12.33, 12.6, 179) 1,918 (19.18, 19.6, 278)
Location Outer diameter Inner diameter
A 50.0 (1.969) 35.1 (1.382)
B 42.0 (1.654) 23.7 (0.933)
C 70.0 (2.756) 50.0 (1.969)
D 56.5 (2.224) 38.5 (1.516)
E 108.0 (4.252) 85.0 (3.346)
F 87.0 (3.425) 69.0 (2.717)
G 51.0 (2.008) 33.1 (1.303)
H 48.0 (1.890) 30.0 (1.181)
I 50.0 (1.969) 35.1 (1.382)
Location Outer diameter Inner diameter
J 76.0 (2.992) 59.3 (2.335)
Location Outer diameter Inner diameter
K 80.0 (3.150) 68.0 (2.677)
L 51.0 (2.008) 36.0 (1.417)
M 38.0 (1.496) 28.1 (1.106)
N 75.0 (2.953) 67.0 (2.638)

AT-364
SERVICE DATA AND SPECIFICATIONS (SDS)

OUTER DIAMETER OF SNAP RINGS
Unit: mm (in)
Control ValvesBCS001P2
CONTROL VALVE RETURN SPRINGS
For QR20DE Engine Models
Unit: mm (in) Location Outer diameter
1 144.8 (5.701)
2 173.8 (6.843)
3 133.9 (5.272)
4 119.1 (4.689)
5 150 (5.91)
6 182.8 (7.197)
PartsItem
Free length Outer diameter
Upper bodyL14 Pilot valve spring 38.98 (1.535) 8.9 (0.350)
L151-2 accumulator valve spring 20.5 (0.807) 6.95 (0.274)
1-2 accumulator piston spring 55.66 (2.191) 19.6 (0.772)
L16 1st reducing valve spring 27.0 (1.062) 7.0 (0.276)
L17 3-2 timing valve spring 23.0 (0.906) 6.65 (0.262)
L18 Overrun clutch reducing valve spring 37.5 (1.476) 6.9 (0.272)
L19 Torque converter relief valve spring 31.0 (1.220) 9.0 (0.354)
L20 Torque converter clutch control valve spring 56.98 (2.243) 6.5 (0.256)
L21 Cooler check valve spring 29.4 (1.157) 6.0 (0.236)
Lower bodyL3 Pressure regulator valve spring 45.0 (1.772) 15.0 (0.591)
L4 Overrun clutch control valve spring 21.7 (0.854) 7.0 (0.276)
L5 Accumulator control valve spring 22.0 (0.866) 6.5 (0.256)
L6 Shift valve A spring 21.7 (0.854) 7.0 (0.276)
L7 Shuttle valve spring 51.0 (2.008) 5.65 (0.222)
L12 Shift valve B spring 21.7 (0.854) 7.0 (0.276)
L13Pressure modifier valve spring 32.0 (1.260) 6.9 (0.272)
Pressure modifier piston spring 30.5 (1.201) 9.8 (0.386)
— Oil cooler relief valve spring 17.02 (0.670) 8.0 (0.315)

SERVICE DATA AND SPECIFICATIONS (SDS)
AT-365
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For VQ23DE Engine Models
Unit: mm (in)
AccumulatorBCS001P3
O-RINGS
Unit: mm (in)
RETURN SPRINGS
Unit: mm (in) PartsItem
Free length Outer diameter
Upper bodyL14 Pilot valve spring 38.98 (1.535) 8.9 (0.350)
L151-2 accumulator valve spring 20.5 (0.807) 6.95 (0.274)
1-2 accumulator piston spring 55.66 (2.191) 19.6 (0.772)
L16 1st reducing valve spring 26.0 (1.024) 7.0 (0.276)
L17 3-2 timing valve spring 23.0 (0.906) 6.65 (0.262)
L18 Overrun clutch reducing valve spring 37.5 (1.476) 6.9 (0.272)
L19 Torque converter relief valve spring 31.0 (1.220) 9.0 (0.354)
L20 Torque converter clutch control valve spring 56.98 (2.243) 6.5 (0.256)
L21 Cooler check valve spring 29.4 (1.157) 6.0 (0.236)
Lower bodyL3 Pressure regulator valve spring 45.0 (1.772) 15.0 (0.591)
L4 Overrun clutch control valve spring 21.7 (0.854) 7.0 (0.276)
L5 Accumulator control valve spring 22.0 (0.866) 6.5 (0.256)
L6 Shift valve A spring 21.7 (0.854) 7.0 (0.276)
L7 Shuttle valve spring 51.0 (2.008) 5.65 (0.222)
L12 Shift valve B spring 21.7 (0.854) 7.0 (0.276)
L13Pressure modifier valve spring 32.0 (1.260) 6.9 (0.272)
Pressure modifier piston spring 30.5 (1.201) 9.8 (0.386)
— Oil cooler relief valve spring 17.02 (0.670) 8.0 (0.315)
AccumulatorInner diameter
(Small)Inner diameter
(Large)
Servo release accumulator 26.9 (1.059) 44.2 (1.740)
N-D accumulator 34.6 (1.362) 39.4 (1.551)
Accumulator Free length Outer diameter
Servo release accumulator 62.8 (2.472) 21.0 (0.827)
N-D accumulator 46.5 (1.831) 28.0 (1.102)

AT-368
SERVICE DATA AND SPECIFICATIONS (SDS)

Band ServoBCS001P9
RETURN SPRING
Unit: mm (in)
Output ShaftBCS001PA
SEAL RING CLEARANCE
SEAL RING
END PLAY
Bearing RetainerBCS001PB
SEAL RING CLEARANCE
Total End PlayBCS001PC
Reverse Clutch End PlayBCS001PD
Removal and InstallationBCS001PE
Shift Solenoid ValvesBCS001PK
Solenoid ValvesBCS001PL
A/T Fluid Temperature SensorBCS001PM
Return spring Free length Outer diameter
2nd servo return spring 32.5 (1.280) 25.9 (1.020)
OD servo return spring 62.6 (2.465) 21.7 (0.854)
Output shaft seal ring clearance mm
(in)Standard 0.10 - 0.25 (0.0039 - 0.0098)
Allowable limit 0.25 (0.0098)
Outer diameter mm (in) Inner diameter mm (in) Width mm (in)
33.71 (1.327) 30.25 (1.191) 1.95 (0.077)
Output shaft end play mm (in) 0 - 0.15 (0 - 0.0059)
Bearing retainer seal ring
clearance mm (in)Standard 0.10 - 0.30 (0.0039 - 0.0118)
Allowable limit 0.30 (0.0118)
Total end play mm (in) 0.25 - 0.55 (0.0098 - 0.0217)
Reverse clutch end play mm (in) 0.61 - 1.0 (0.0240 - 0.039)
Distance between end of converter housing
and torque converter mm (in)QR20DE engine models 19 (0.75)
VQ23DE engine models 14 (0.55)
Gear position 1 2 3 4
Shift solenoid valve A ON (Closed) OFF (Open) OFF (Open) ON (Closed)
Shift solenoid valve B ON (Closed) ON (Closed) OFF (Open) OFF (Open)
Solenoid valves Resistance (Approx.)ΩTe r m i n a l N o .
Shift solenoid valve A 20 - 30 2
Shift solenoid valve B 5 - 20 1
Overrun clutch solenoid valve 20 - 30 3
Line pressure solenoid valve 2.5 - 5 4
Torque converter clutch solenoid valve 5 - 20 5
Condition Specification (Approx.)
Cold [20°C (68°F)]
↓
Hot [80°C (176°F)]1.5 V
↓
0.5 V2.5 kΩ
↓
0.3 kΩ

ATC-2 Discharge Air Flow ................................................. 31
System Description ................................................. 32
SWITCHES AND THEIR CONTROL FUNCTION ... 32
CAN Communication System Description .............. 33
TROUBLE DIAGNOSIS ............................................ 34
CONSULT-II Function (BCM) .................................. 34
CONSULT-II BASIC OPERATION ....................... 34
DATA MONITOR .................................................. 34
How to Perform Trouble Diagnosis for Quick and
Accurate Repair ...................................................... 35
WORK FLOW ...................................................... 35
SYMPTOM TABLE .............................................. 35
Component Parts and Harness Connector Location ... 36
ENGINE COMPARTMENT .................................. 36
PASSENGER COMPARTMENT .......................... 37
Schematic ............................................................... 38
Wiring Diagram — A/C — ....................................... 39
Auto Amp. Terminals and Reference Value ............ 44
PIN CONNECTOR TERMINAL LAYOUT ............ 44
TERMINALS AND REFERENCE VALUE FOR
UNIFIED METER AND A/C AMP. ........................ 44
Self-diagnosis Function .......................................... 46
DESCRIPTION .................................................... 46
FUNCTION CONFIRMATION PROCEDURE ...... 47
AUXILIARY MECHANISM: TEMPERATURE
SETTING TRIMMER ........................................... 52
AUXILIARY MECHANISM: FOOT POSITION
SETTING TRIMMER ........................................... 53
AUXILIARY MECHANISM: INLET PORT MEM-
ORY FUNCTION ................................................. 53
Operational Check .................................................. 54
CHECKING MEMORY FUNCTION ..................... 54
CHECKING BLOWER ......................................... 54
CHECKING DISCHARGE AIR ............................ 54
CHECKING INTAKE AIR ..................................... 54
CHECKING TEMPERATURE DECREASE ......... 54
CHECKING TEMPERATURE INCREASE .......... 55
CHECKING A/C SWITCH ................................... 55
CHECKING AUTO MODE ................................... 55
Power Supply and Ground Circuit for Auto Amp. ... 56
INSPECTION FLOW ........................................... 56
COMPONENT DESCRIPTION ............................ 57
DIAGNOSIS PROCEDURE FOR A/C SYSTEM ... 57
LAN System Circuit ................................................ 59
DIAGNOSIS PROCEDURE FOR LAN CIRCUIT ... 59
Mode Door Motor Circuit ........................................ 63
INSPECTION FLOW ........................................... 63
SYSTEM DESCRIPTION .................................... 64
COMPONENT DESCRIPTION ............................ 65
DIAGNOSIS PROCEDURE FOR MODE DOOR
MOTOR ............................................................... 65
Air Mix Door Motor Circuit ...................................... 66
INSPECTION FLOW ........................................... 66
SYSTEM DESCRIPTION .................................... 67
COMPONENT DESCRIPTION ............................ 68
DIAGNOSIS PROCEDURE FOR AIR MIX DOOR
MOTOR ............................................................... 68
Air Mix Door Motor PBR Circuit .............................. 68DIAGNOSIS PROCEDURE FOR AIR MIX DOOR
MOTOR PBR ....................................................... 68
Intake Door Motor Circuit ........................................ 69
INSPECTION FLOW ............................................ 69
SYSTEM DESCRIPTION ..................................... 70
COMPONENT DESCRIPTION ............................ 71
DIAGNOSIS PROCEDURE FOR INTAKE DOOR
MOTOR ................................................................ 71
Blower Motor Circuit ................................................ 72
INSPECTION FLOW ............................................ 72
SYSTEM DESCRIPTION ..................................... 73
COMPONENT DESCRIPTION ............................ 74
DIAGNOSIS PROCEDURE FOR BLOWER
MOTOR ................................................................ 74
COMPONENT INSPECTION ............................... 77
Magnet Clutch Circuit .............................................. 78
INSPECTION FLOW ............................................ 78
SYSTEM DESCRIPTION ..................................... 79
DIAGNOSIS PROCEDURE FOR MAGNET
CLUTCH .............................................................. 79
COMPONENT INSPECTION ............................... 83
Insufficient Cooling .................................................. 84
INSPECTION FLOW ............................................ 84
PERFORMANCE TEST DIAGNOSIS .................. 85
PERFORMANCE CHART .................................... 87
TROUBLE DIAGNOSIS FOR UNUSUAL PRES-
SURE ................................................................... 88
Insufficient Heating ................................................. 91
INSPECTION FLOW ............................................ 91
Noise ....................................................................... 92
INSPECTION FLOW ............................................ 92
Self-diagnosis ......................................................... 94
INSPECTION FLOW ............................................ 94
Memory Function .................................................... 95
INSPECTION FLOW ............................................ 95
Ambient Sensor Circuit ........................................... 96
COMPONENT DESCRIPTION ............................ 96
AMBIENT TEMPERATURE INPUT PROCESS ... 96
DIAGNOSIS PROCEDURE FOR AMBIENT
SENSOR .............................................................. 96
COMPONENT INSPECTION ............................... 98
In-vehicle Sensor Circuit ......................................... 99
COMPONENT DESCRIPTION ............................ 99
DIAGNOSIS PROCEDURE FOR IN-VEHICLE
SENSOR ............................................................100
COMPONENT INSPECTION .............................101
Sunload Sensor Circuit .........................................102
COMPONENT DESCRIPTION ..........................102
SUNLOAD INPUT PROCESS ...........................102
DIAGNOSIS PROCEDURE FOR SUNLOAD
SENSOR ............................................................102
COMPONENT INSPECTION .............................104
Intake Sensor Circuit .............................................105
COMPONENT DESCRIPTION ..........................105
DIAGNOSIS PROCEDURE FOR INTAKE SEN-
SOR ...................................................................105
COMPONENT INSPECTION .............................106