2006 INFINITI QX56 ECU

DISASSEMBLYAT-267
DE
F
G H
I
J
K L
M A
B
AT
Revision: November 2009 2006 QX56
14. Loosen lock nut and remove band servo anchor end pin from
transmission case.
15. Remove brake band from transmission case.

To prevent brake linings from cracking or peeling, do not
stretch the flexible band unnecessarily. When removing
the brake band, always secure it with a clip as shown.
Leave the clip in position after removing the brake band.

Check brake band facing for damage, cracks, wear or
burns.
16. Remove mid carrier assembly and rear carrier assembly as a unit.
SCIA5016E
SCIA5345E
SAT655
SCIA5344E

ASSEMBLYAT-303
DE
F
G H
I
J
K L
M A
B
AT
Revision: November 2009 2006 QX56
15. Install new seal rings to drum support.
CAUTION:

Do not reuse seal rings.

Apply petroleum jelly to seal rings.
16. Install spring retainer and return spring in transmission case.
17. Install snap ring in transmission case while compressing return spring using Tool.
CAUTION:
Securely assemble them so that snap ring tension is
slightly weak.
SCIA3333E
SCIA2324E
Tool number : KV31102400 (J-34285 and J-34285-87)
SCIA5582E

ASSEMBLYAT-319
DE
F
G H
I
J
K L
M A
B
AT
Revision: November 2009 2006 QX56
g. Install control valve with TCM in transmission case.
CAUTION:

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

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

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

Assemble it so that manual valve cutout is engaged with
manual plate projection.
h. Install bolts A, B and C to control valve with TCM.
i. Tighten bolt 1, 2 and 3 temporarily to prevent dislocation. Then tighten them in order (1 → 2 → 3), and then tighten other bolts.
j. Tighten control valve with TCM bolts to the specified torque. Refer to AT- 2 5 0 , "
Components" .
10. Connect A/T fluid temperature sensor 2 connector.
SCIA5034E
SCIA5035E
Bolt symbol Length: mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA5025E
SCIA5037E
SCIA5023E

AT-320
ASSEMBLY
Revision: November 20092006 QX56
11. Securely fasten terminal cord assembly and A/T fluid tempera-
ture sensor 2 harness with terminal clips.
12. Connect revolution sensor connector.
13. Securely fasten revolution sensor harness with terminal clips.
14. Pull down A/T assembly harness connector. CAUTION:
Be careful not to damage connector.
15. Install snap ring to A/T assembly harness connector.
SCIA5446E
SCIA5024E
SCIA7023E
SCIA5299E
SCIA5300E

ATC-34
TROUBLE DIAGNOSIS
Revision: November 20092006 QX56
TROUBLE DIAGNOSISPFP:00004
CONSULT-II Function (HVAC)EJS003XD
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and “CON-
SULT-II CONVERTER ” to the data link connector, and turn the
ignition switch ON.
2. Touch “START (NISSAN BASED VHCL) ”.
3. Touch “HVAC” on “SELECT SYSTEM ” screen. If “HVAC” is not
indicated, go to GI-40, "
CONSULT-II Data Link Connector (DLC)
Circuit" .
Diagnostic mode Description
SELF-DIAG RESULTS Displays front air control self-diagnosis results. DATA MONITOR Displays front air control input/output data in real time.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ECU PART NUMBER Front air control part number can be read.
BBIA0369E
BCIA0029E
BCIA0030E

TROUBLE DIAGNOSISATC-37
C
DE
F
G H
I
K L
M A
B
AT C
Revision: November 2009 2006 QX56
CONSULT-II Function (BCM)EJS003XE
CONSULT-II can display each diagnostic item using the diagnostic test modes shown following.
CONSULT-II BASIC OPERATION
CAUTION:
If CONSULT-II is used with no connection of CONSULT-II CONVERTER, malfunctions might be
detected in self-diagnosis depending on control unit which carries out CAN communication.
1. With the ignition switch OFF, connect CONSULT-II and “CON-
SULT-II CONVERTER ” to the data link connector, and turn the
ignition switch ON.
2. Touch “START (NISSAN BASED VHCL) ”.
3. Touch “BCM” on “SELECT SYSTEM ” screen. If “BCM” is not
indicated, go to GI-40, "
CONSULT-II Data Link Connector (DLC)
Circuit" .
BCM diagnostic
test item Diagnostic mode
Description
Inspection by part WORK SUPPORT
Supports inspections and adjustments. Commands are transmitted to the BCM
for setting the status suitable for required operation, input/output signals are
received from the BCM and received data is displayed.
DATA MONITOR Displays BCM input/output data in real time. ACTIVE TEST Operation of electrical loads can be checked by sending drive signal to them.
SELF-DIAG RESULTS Displays BCM self-diagnosis results.
CAN DIAG SUPPORT MNTR The result of transmit/receive diagnosis of CAN communication can be read. ECU PART NUMBER BCM part number can be read.CONFIGURATION Performs BCM configuration read/write functions.
BBIA0369E
BCIA0029E
BCIA0030E

ATC-144
CONTROL UNIT
Revision: November 20092006 QX56
CONTROL UNITPFP:27500
Removal and InstallationEJS003Y6
FRONT AIR CONTROL
Removal
1. Remove the five control knobs from the front air control unit.
2. Remove the cluster lid C. Refer to IP-12, "
Removal" .
3. Remove the four screws securing the front air control unit to cluster lid C.
4. Remove the front air control unit.
Installation
Installation is in the reverse order of removal.
REAR AIR CONTROL
Removal
1. Remove the overhead console from the headliner. Refer to EI-38, "HEADLINING" .
2. Remove the four screws and remove the rear air control.
Installation
Installation is in the reverse order of removal.
LJIA0130E
LJIA0131E

ATC-152
IN-CABIN MICROFILTER
Revision: November 20092006 QX56
5. Install the in-cabin microfilter cover.
6. Install the lower glove box in the instrument panel and secure it
with the two hinge pins.
LJIA0134E
WLIA0027E