2006 INFINITI QX56 transmission fluid

TROUBLE DIAGNOSIS FOR SYMPTOMSAT-219
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Revision: November 2009 2006 QX56
3. CHECK A/T FLUID LEVEL
Check the A/T fluid level. Refer to AT- 1 2 , "
Checking Automatic
Transmission Fluid (ATF)" .
OK or NG
OK >> GO TO 4.
NG >> Refill ATF.
4. CHECK CONTROL CABLE
Check the control cable.

Refer to AT- 2 2 7 , "Checking of A/T Position" .
OK or NG
OK >> GO TO 5.
NG >> Adjust control cable. Refer to AT- 2 2 7 , "
Adjustment of A/
T Position" .
5. CHECK A/T FLUID CONDITION
1. Remove oil pan. Refer to AT- 2 3 0 , "
Control Valve With TCM and A/T Fluid Temperature Sensor 2" .
2. Check A/T fluid condition. Refer to AT- 5 1 , "
Fluid Condition
Check" .
OK or NG
OK >> GO TO 6.
NG >> GO TO 9.
6. DETECT MALFUNCTIONING ITEM

Check the malfunction items. If any items are damaged, repair or replace damaged parts. Refer to AT- 6 1 ,
"Symptom Chart" (Symptom No.53).
OK or NG
OK >> GO TO 7.
NG >> Repair or replace damaged parts.
7. CHECK SYMPTOM
Check again. Refer to AT- 5 9 , "
Cruise Test - Part 3" .
OK or NG
OK >> INSPECTION END
NG >> GO TO 8.
SAT638A
LCIA0345E
SCIA5199E

AT-228
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
ON-VEHICLE SERVICEPFP:00000
Oil PanECS00EPZ
REMOVAL AND INSTALLATION
Removal
1. Drain A/T fluid. Refer to AT- 1 2 , "Changing Automatic Transmission Fluid (ATF)" .
2. Remove oil pan and gasket.
3. Check foreign materials in oil pan to help determine cause of malfunction. If the A/T fluid is very dark, has some burned smell, or contains foreign particles, friction material (clutches, band) may need replacement.
A tacky film that will not wipe clean indicates varnish build up. Varnish can cause valves, servo, and
clutches to stick and can inhibit pump pressure.
CAUTION:
If friction material is detected, flush the transmission cooler after repair. Refer to AT- 1 4 , "
A/T Fluid
Cooler Cleaning" .
4. Remove magnets from oil pan.
Installation
1. Install the oil pan magnets as shown.
SCIA2308E
SCIA5200E
SCIA5200E

ON-VEHICLE SERVICEAT-229
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Revision: November 2009 2006 QX56
2. Install the oil pan and new oil pan gasket.
CAUTION:

Do not reuse the oil pan gasket.

Completely remove all moisture, oil and old gasket from
the oil pan gasket mating surfaces and holes.

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

Be sure the oil pan drain plug hole is located to the rear
of the transmission assembly.

Partially install the oil pan bolts in a criss-cross pattern to
prevent dislocation of the gasket.

Be careful not to pinch harnesses.
3. Tighten new oil pan bolts in numerical order as shown.
4. Install drain plug in oil pan with new gasket. CAUTION:
Do not reuse the drain plug gasket.
5. Refill the transmission assembly with fluid. Refer to AT- 1 2 , "
Changing Automatic Transmission Fluid
(ATF)" .
SCIA2308E
Oil pan bolts : 7.9 N·m (0.81 kg-m, 70 in-lb)
SCIA4113E
Drain plug : 34 N·m (3.5 kg-m, 25 ft-lb)

AT-230
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
Control Valve With TCM and A/T Fluid Temperature Sensor 2ECS00EQ0
COMPONENTS
1. Transmission assembly2. Snap ring 3. Sub-harness
4. Control valve with TCM 5. Bracket 6. A/T fluid temperature sensor 2
7. Oil pan gasket 8. Oil pan 9. Magnets
10. Drain plug 11. Drain plug gasket 12. Oil pan bolt
13. Terminal cord assembly 14. O-ring
SCIA5478E

AT-232
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
9. Disconnect revolution sensor connector.
CAUTION:
Be careful not to damage connector.
10. Straighten terminal clips to free revolution sensor harness.
11. Remove bolts A, B and C from control valve with TCM.
12. Remove control valve with TCM from transmission case. CAUTION:
Be careful with the manual valve notch and manual plate
height. Remove it vertically.
13. Remove A/T fluid temperature sensor 2 with bracket from con- trol valve with TCM.
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SCIA7022E
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA5139E
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SCIA5301E

ON-VEHICLE SERVICEAT-235
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Revision: November 2009 2006 QX56
5. Install A/T fluid temperature sensor 2 to bracket.
6. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque. Refer to AT- 2 5 0 , "
Components" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
7. Install control valve with TCM in transmission case. CAUTION:

Make sure that turbine revolution sensor securely installs
turbine revolution sensor hole.

Hang down revolution sensor harness toward outside so
as not to disturb installation of control valve with TCM.

Adjust A/T assembly harness connector of control valve
with TCM to terminal hole of transmission case.

Assemble it so that manual valve cutout is engaged with
manual plate projection.
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ON-VEHICLE SERVICEAT-237
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Revision: November 2009 2006 QX56
13. Connect revolution sensor connector.
14. Securely fasten revolution sensor harness with terminal clips.
15. Install oil pan to transmission case. Refer to AT- 2 2 8 , "
Installation" .
16. Pull up A/T assembly harness connector. CAUTION:
Be careful not to damage connector.
17. Install snap ring to A/T assembly harness connector.
18. Connect A/T assembly harness connector.
19. Pour ATF into transmission assembly. Refer to AT- 1 2 , "
Chang-
ing Automatic Transmission Fluid (ATF)" .
20. Connect the negative battery terminal
CAUTION:
After completing installation, check A/T fluid leakage and fluid
level. Refer to AT- 1 2 , "
Changing Automatic Transmission Fluid
(ATF)" , AT- 1 2 , "Checking Automatic Transmission Fluid (ATF)"
.
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SCIA5038E
SCIA5039E

ON-VEHICLE SERVICEAT-239
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Revision: November 2009 2006 QX56
Installation
1. Install A/T fluid temperature sensor 2 to bracket.
2. Install A/T fluid temperature sensor 2 (with bracket) in control
valve with TCM. Tighten A/T fluid temperature sensor 2 bolt to
the specified torque. Refer to AT- 2 5 0 , "
Components" .
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve with
TCM.
3. Connect A/T fluid temperature sensor 2 connector.
4. Securely fasten A/T temperature sensor 2 harness with terminal clip.
5. Install oil pan to transmission case. Refer to AT- 2 2 8 , "
Installation" .
6. Connect the negative battery terminal
CAUTION:
After completing installation, check for A/T fluid leakage and fluid level. Refer to AT- 1 2 , "
Changing
Automatic Transmission Fluid (ATF)" , AT- 1 2 , "Checking Automatic Transmission Fluid (ATF)" .
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SCIA5253E
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