2006 INFINITI QX56 battery

ON-VEHICLE SERVICEAT-231
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Revision: November 2009 2006 QX56
CONTROL VALVE WITH TCM REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal
2. Drain ATF through drain plug.
3. Disconnect A/T assembly harness connector.
4. Remove snap ring from A/T assembly harness connector.
5. Push A/T assembly harness connector.
CAUTION:
Be careful not to damage connector.
6. Remove oil pan and oil pan gasket. Refer to AT- 2 2 8 , "
Removal" .
7. Disconnect A/T fluid temperature sensor 2 connector. CAUTION:
Be careful not to damage connector.
8. Straighten terminal clip to free terminal cord assembly and A/T fluid temperature sensor 2 harness.
SCIA5021E
SCIA5022E
SCIA5023E
SCIA5446E

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)"
.
SCIA5024E
SCIA7022E
SCIA5038E
SCIA5039E

AT-238
ON-VEHICLE SERVICE
Revision: November 20092006 QX56
A/T FLUID TEMPERATURE SENSOR 2 REMOVAL AND INSTALLATION
Removal
1. Disconnect negative battery terminal
2. Remove oil pan and oil pan gasket. Refer to AT- 2 2 8 , "
Removal" .
3. Disconnect A/T fluid temperature sensor 2 connector.
CAUTION:
Be careful not to damage connector.
4. Straighten terminal clip to free A/T fluid temperature sensor 2 harness.
5. Remove A/T fluid temperature sensor 2 with bracket from con- trol valve with TCM.
6. Remove bracket from A/T fluid temperature sensor 2.
SCIA5023E
SCIA5146E
SCIA5253E
SCIA5264E

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)" .
SCIA5264E
SCIA5253E
SCIA5023E
SCIA5146E

TRANSMISSION ASSEMBLYAT-243
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Revision: November 2009 2006 QX56
TRANSMISSION ASSEMBLYPFP:31020
Removal and Installation (2WD)ECS00EQ2
COMPONENTS
REMOVAL
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the negative battery terminal.
2. Remove engine cover.
3. Remove A/T fluid indicator gauge.
4. Remove undercovers using power tool.
5. Remove exhaust front tube and center muffler using power tool. Refer to EX-3, "
Removal and Installation"
.
6. Remove rear propeller shaft. Refer to PR-8, "
Removal and Installation" .
7. Remove A/T control cable. Refer to AT- 2 2 7 , "
REMOVAL" .
1. A/T fluid indicator pipe 2. A/T fluid indicator 3. O-ring
4. Transmission assembly 5. Fluid cooler tube6. A/T cross member
7. Insulator 8. Copper washers
WCIA0567E

AT-246
TRANSMISSION ASSEMBLY
Revision: November 20092006 QX56
Removal and Installation (4WD) ECS00EQ3
COMPONENTS
REMOVAL
CAUTION:
When removing the A/T assembly from engine, first remove the crankshaft position sensor (POS) from
the A/T assembly.
Be careful not to damage sensor edge.
1. Disconnect the negative battery terminal.
2. Remove engine cover using power tool.
3. Remove A/T fluid indicator.
4. Remove undercovers using power tool.
5. Remove exhaust front tube and center muffler using power tool. Refer to EX-3, "
Removal and Installation"
.
6. Remove propeller shafts. Refer to PR-4, "
Removal and Installation" and PR-8, "Removal and Installation"
.
7. Remove A/T control cable. Refer to AT- 2 2 7 , "
REMOVAL" .
1. A/T fluid indicator pipe 2. A/T fluid indicator 3. O-ring
4. Transmission assembly 5. Fluid cooler tube 6. Copper washer
7. A/T cross member 8. Insulator
WCIA0566E

PREPARATIONATC-15
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Revision: November 2009 2006 QX56
—
(J-41995)
Electronic refrigerant leak detector Power supply:

DC 12V (battery terminal)
—
(J-43926)
Refrigerant dye leak detection kit
Kit includes:
(J-42220) UV lamp and UV safety
goggles
(J-41459) Refrigerant dye injector
(J-41447) qty. 24
HFC-134a (R-134a) refrigerant
dye
(J-43872) Refrigerant dye cleaner Power supply:

DC 12V (battery terminal)
—
(J-42220)
Fluorescent dye leak detector Power supply:

DC 12V (battery terminal)
For checking refrigerant leak when flu-
orescent dye is installed in A/C system.
Includes: UV lamp and UV safety gog-
gles
—
(J-41447)
HFC-134a (R-134a) Fluorescent
leak detection dye
(Box of 24, 1/4 ounce bottles) Application: For HFC-134a (R-134a)
PAG oil
Container: 1/4 ounce (7.4cc) bottle
(Includes self-adhesive dye identifica-
tion labels for affixing to vehicle after
charging system with dye.)
—
(J-41459)
HFC-134a (R-134a) Dye injector
Use with J-41447, 1/4 ounce bottle For injecting 1/4 ounce of fluorescent
leak detection dye into A/C system.
—
(J-43872)
Refrigerant dye cleaner For cleaning dye spills.
Tool number
(Kent-Moore No.)
Tool name
Description
AHA281A
ZHA200H
SHA438F
SHA439F
SHA440F
SHA441F

TROUBLE DIAGNOSISATC-35
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Revision: November 2009 2006 QX56
SELF-DIAGNOSIS
Operation Procedure
1. Touch “SELF-DIAG RESULTS ” on “SELECT DIAG MODE”
screen to view all set DTC's.
Display Item List
DATA MONITOR
Operation Procedure
1. Touch “DATA MONITOR ” on “SELECT DIAG MODE ” screen.
2. Touch either “MAIN SIGNALS” or “SELECTION FROM MENU ” on “DATA MONITOR” screen.
3. When “SELECTION FROM MENU ” is selected, touch items to be monitored. When “MAIN SIGNALS” is
selected, all the items will be monitored.
4. Touch “START”.
5. Touch “RECORD” while monitoring, then the status of the monitored item can be recorded. To stop
recording, touch “STOP”.
BCIA0031E
DTC Description
Reference page
B2573 Battery voltage out of range SC-4, "
BATTERY"
B2578 In-vehicle sensor circuit out of range (low)
ATC-137, "In-vehicle Sensor Circuit"B2579 In-vehicle sensor circuit out of range (high)
B257B Ambient sensor circuit short ATC-134, "
Ambient Sensor Circuit"B257C Ambient sensor circuit open
B257F Optical sensor (Driver) circuit open or short ATC-140, "
Optical Sensor Circuit"B2580 Optical sensor (Passenger) circuit open or short
B2581 Intake sensor circuit shortATC-142, "
Intake Sensor Circuit"B2582 Intake sensor circuit open
U1000 CAN bus fault LAN-26, "
CAN COMMUNICATION"
B2587 Stuck buttonATC-144, "FRONT AIR CONTROL"
BCIA0031E
MAIN SIGNALSMonitors all the items.
SELECTION FROM MENU Selects and monitors the individual item selected.