2006 INFINITI QX56 lock

AT-286
REPAIR FOR COMPONENT PARTS
Revision: November 20092006 QX56
b. Check 3rd one-way clutch for correct locking and unlocking
directions.
CAUTION:
If not as shown, check installation direction of 3rd one-way
clutch.
Front Carrier, Input Clutch, Rear Internal GearECS00EOE
COMPONENTS
SCIA3131E
SCIA5244E

REPAIR FOR COMPONENT PARTSAT-295
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Revision: November 2009 2006 QX56
5. Install needle bearing to high and low reverse clutch hub.
CAUTION:

Take care with the direction of needle bearing. Refer to
AT- 2 6 0 , "
Locations of Adjusting Shims, Needle Bearings,
Thrust Washers and Snap Rings" .

Apply petroleum jelly to needle bearing.
6. Install high and low reverse clutch hub to mid sun gear assem- bly.
7. Install snap ring to mid sun gear assembly using suitable tool. CAUTION:
Do not expand snap ring excessively.
8. Check operation of 1st one-way clutch.
a. Hold mid sun gear and turn rear sun gear.
b. Check 1st one-way clutch for correct locking and unlocking directions.
CAUTION:
If not as shown, check installation direction of 1st one-way
clutch.
9. Install needle bearing and bearing races to high and low reverse clutch hub.
CAUTION:

Apply petroleum jelly to needle bearing and bearing
races.

Take care with order of bearing races.
SCIA2857E
SCIA2856E
SCIA2855E
SCIA3132E
SCIA5238E

AT-312
ASSEMBLY
Revision: November 20092006 QX56
46. Install front carrier assembly, input clutch assembly and rear
internal gear as a unit.
47. Install new seal rings in input clutch assembly. CAUTION:

Do not reuse seal rings.

Apply petroleum jelly to seal rings.
48. Install new band servo anchor end pin and lock nut in transmis- sion case.
CAUTION:
Do not reuse band servo anchor end pin.
49. Install brake band in transmission case. CAUTION:
Assemble it so that identification to avoid incorrect installa-
tion faces servo side.
50. Install front sun gear assembly to front carrier assembly. CAUTION:
Apply ATF to front sun gear radial bearing and 3rd one-way
clutch end bearing.
SCIA5173E
SCIA5269E
SCIA5016E
SCIA5498E
SCIA5014E

ASSEMBLYAT-313
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Revision: November 2009 2006 QX56
51. Install needle bearing in front sun gear assembly.
CAUTION:
Apply petroleum jelly to needle bearing.
52. Adjust brake band tilting using clips so that brake band contacts front sun gear drum evenly.
53. Adjust brake band.
a. Loosen lock nut.
b. Tighten band servo anchor end pin to specified torque.
c. Back off band servo anchor end pin three turns.
d. Holding band servo anchor end pin, tighten lock nut to specified torque. Refer to AT- 2 5 0 , "
Components" .
AdjustmentECS00EQ9
TOTAL END PLAY

Measure clearance between front sun gear and bearing race for
oil pump cover.

Select proper thickness of bearing race so that end play is within
specifications.
SCIA2808E
SCIA5033E
Band servo anchor end pin : 5.0 N·m (0.51 kg-m,
44 in-lb)
SCIA5498E
SCIA2810E

AT-324
SERVICE DATA AND SPECIFICATIONS (SDS)
Revision: November 20092006 QX56
Vehicle Speed When Performing and Releasing Complete Lock-upECS00EQD

At closed throttle, the accelerator opening is less than 1/8 condition.

At half throttle, the accelerator opening is 4/8 of the full opening.
Vehicle Speed When Performing and Releasing Slip Lock-upECS00EQE

At closed throttle, the accelerator opening is less than 1/8 condition.
Stall SpeedECS00EQF
Line PressureECS00EQG
A/T Fluid Temperature SensorECS00EQH
Turbine Revolution SensorECS00EQI
Vehicle Speed Sensor A/T (Revolution Sensor)ECS00EQJ
Final
gear
ratio Throttle position
Vehicle speed km/h (MPH)
Lock-up “ON ” Lock-up “OFF ”
2.937 Closed throttle
74 - 82 (46 - 51) 71 - 79 (45 - 49)
Half throttle 188 - 196 (117 - 122) 136 - 144 (85 - 90)
3.357 Closed throttle
65 - 73 (41 - 46) 62 - 70 (39 - 44)
Half throttle 168 - 176 (105 - 110) 118 - 126 (74 - 79)
Final
gear
ratioThrottle position Gear position Vehicle speed km/h (MPH)
Slip lock-up “ON ” Slip lock-up “OFF ”
2.937 Closed throttle 4th
52 - 60 (33 - 38) 49 - 57 (31 - 36)
5th 52 - 60 (33 - 38) 49 - 57 (31 - 36)
3.357 Closed throttle 4th
46 - 54 (29 - 34) 43 - 51 (27 - 32)
5th 46 - 54 (29 - 34) 43 - 51 (27 - 32)
Stall speed 2,500 - 2,800 rpm
Engine speedLine pressure [kPa (kg/cm
2 , psi)]
R position D position
At idle speed 425 - 465 (4.3 - 4.7, 62 - 67) 379 - 428 (3.9 - 4.4, 55 - 62)
At stall speed 1,605 - 1,950 (16.4 - 19.9, 233 - 283) 1,310 - 1,500 (13.4 - 15.3, 190 - 218)
Name Condition CONSULT-II “DATA MONITOR ” (Approx.) (V) Resistance (Approx.) (kΩ )
ATF TEMP SE 1 0
°C (32 °F) 3.3 15
20 °C (68 °F) 2.7 6.5
80 °C (176 °F) 0.9 0.9
ATF TEMP SE 2 0
°C (32 °F) 3.3 10
20 °C (68 °F) 2.5 4
80 °C (176 °F) 0.7 0.5
Name ConditionData (Approx.)
Turbine revolution
sensor 1 When running at 50 km/h (31 MPH) in 4th speed with the closed throttle position switch
“
OFF ”.
1.3 (kHz)
Turbine revolution
sensor 2 When moving at 20 km/h (12 MPH) in 1st speed with the closed throttle position switch
“
OFF ”.
Name ConditionData (Approx.)
Revolution sensor When moving at 20 km/h (12 MPH). 185 (Hz)

PRECAUTIONSATC-13
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Revision: November 2009 2006 QX56
SERVICE COUPLERS
Never attempt to connect HFC-134a (R-134a) service couplers to a
CFC-12 (R-12) A/C system. The HFC-134a (R-134a) couplers will
not properly connect to the CFC-12 (R-12) system. If an improper
connection is attempted, discharging and contamination may occur.
REFRIGERANT WEIGHT SCALE
Verify that no refrigerant other than HFC134a (R-134a) and specified
oils have been used with the scale. If the scale controls refrigerant
flow electronically, the hose fitting must be 1/2”-16 ACME.
CHARGING CYLINDER
Using a charging cylinder is not recommended. Refrigerant may be vented into air from cylinder's top valve
when filling the cylinder with refrigerant. Also, the accuracy of the cylinder is generally less than that of an
electronic scale or of quality recycle/recharge equipment.
Shut-off valve rotationA/C service valve
Clockwise Open
Counterclockwise Close
RHA273D
RHA274D

ATC-54
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
Front Air Control Terminals and Reference ValueEJS003XJ
Measure voltage between each terminal and ground by following
Terminals and Reference Value for front air control.
PIN CONNECTOR TERMINAL LAYOUT
TERMINALS AND REFERENCE VALUE FOR FRONT AIR CONTROL
WJIA0544E
WJIA0402E
Te r m i -
nal No. Wire
color ItemIgnition
switch Condition Voltage (V)
(Approx.)
1 B Ground -- 0V
2 Y Sensor power ON- 5V
3 W/G Air mix door motor (Driver) CW ON Clockwise rotation Battery voltage
4 G Air mix door motor (Driver) CCW ON Counterclockwise rotation Battery voltage
5 BR/W Mode door motor CW ON Clockwise rotationBattery voltage
6 P/L Mode door motor CCW ON Counterclockwise rotationBattery voltage
7 O Intake door motor CCW ON Counterclockwise rotationBattery voltage
8 G/B Intake door motor CW ON Clockwise rotationBattery voltage
9 L/B Intake sensor ON- 0 - 5V
10 L/R Fan ON signal ON Blower switch OFF
5V
ON Blower switch ON 0V
11 Y/B Rear defroster request ON- Battery voltage
12 W/R Compressor ON signal ON A/C switch OFF
5V
ON A/C switch ON 0V
13 G/R Variable blower control ON- 0 - 5V
14 Y/G Power supply for IGN ON- Battery voltage
15 P Sensor ground ON- 0V
16 GR Mode door motor feedback ON- 0 - 5V
17 P Ambient sensor ON- 0 - 5V
18 SB Air mix door motor (Driver) feedback ON -0 - 5V
19 LG Defroster door motor CW ON Clockwise rotationBattery voltage
20 P/B Defroster door motor CCW ON Counterclockwise rotationBattery voltage
21 V/R Sensor return ON- 0 - 5V

TROUBLE DIAGNOSISATC-55
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Revision: November 2009 2006 QX56
22 Y/R Power supply for BAT-- Battery voltage
23 R/L Illumination + ON Park lamps ONBattery voltage
24 BR Illumination - - Park lamps ON
25 LG/B Defroster door motor feedback ON -0 - 5V
26 R/B Front blower request ONFront blower motor OFF
Battery voltage
Front blower motor ON 0V
27 GR/R Air mix door motor (Rear) CW ON Clockwise rotationBattery voltage
28 L/Y Air mix door motor (Rear) CCW ON Counterclockwise rotation Battery voltage
29 Y/L Water valve ONWater valve open
0V
Water valve closed 5V
30 W/G Water valve ONWater valve open
0V
Water valve closed Battery voltage
31 W/V Optical sensor (Passenger) ON- 0 - 5V
32 LG/R In-vehicle sensor signal ON- 0 - 5V
33 V Air mix door (Rear) set point ON- 0 - 5V
34 L CAN-H ON- 0 - 5V
35 P CAN-L ON- 0 - 5V
36 G/W Air mix door motor (Passenger) CW ON Clockwise rotation Battery voltage
37 L Air mix door motor (Passenger)
CCW ON Counter clockwise rotation
Battery voltage
38 W/L Rear blower request ONFront blower motor OFF
Battery voltage
Front blower motor ON 0V
39 Y/B Rear select signal ON- 0V - Battery voltage
40 G/O Optical sensor (Driver) ON- 0 - 5V
41 R/W Air mix door motor (Passenger)
feedback ON
- 0 - 5V
42 R/Y Air mix door motor (Rear) feedback ON -0 - 5V
43 BR/Y In-vehicle sensor motor (+) ON- Battery voltage
44 O/B In-vehicle sensor motor (-) ON- 0V
Te r m i -
nal No. Wire
color Item
Ignition
switch Condition
Voltage (V)
(Approx.)
PIIA2344E