2010 INFINITI QX56 ECU

ASSEMBLYTM-261
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
I
J
K L
M A
B
TM
N
O P
iii. Install plug (1) [with bracket (2)] to control valve with TCM and tighten bolt ( ) to specified torque.
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve.
14. Install control valve with TCM in transmission case. CAUTION:
• Make sure that input speed sensor is securely installed
into input speed sensor hole (A).
• Hang down output speed sensor harness toward outside so as not to disturb installati on 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.
15. Install bolts (A), (B) and (C) to control valve with TCM.
16. Tighten bolt (A), (B) and (C) temporarily to prevent dislocation. After that tighten them in order (A → B → C), and then tighten
other bolts. Bracket bolt : 7.9 N·m (0.81 kg-m, 70 in-lb)
JSDIA1311ZZ
1 : Brake band
JSDIA1318ZZ
SCIA5035E
: Front
Bolt symbol Length mm (in) Number of bolts
A 42 (1.65) 5
B 55 (2.17) 6
C 40 (1.57) 1
SCIA8077E
: Front
Bolt symbol A B C
Number of bolts 5 6 1
Length mm (in) 42 (1.65) 55 (2.17) 40 (1.57)
SCIA8078E
Revision: April 20092010 QX56

TM-262
< DISASSEMBLY AND ASSEMBLY >
ASSEMBLY
17. After installing the A/T fluid temperature sensor 2, connect the A/T fluid temperature sensor 2 connector
as shown below.
a. Connect A/T fluid temperature sensor 2 connector (A).
b. Securely fasten terminal cord assembly and A/T fluid tempera- ture sensor 2 harness with terminal clips.
18. Connect output speed sensor connector (1).
19. Securely fasten output speed sensor harness with terminal clip ().
20. Pull down A/T assembly harness connector. CAUTION:
Do not damage connector.
Tightening torque
N·m (km-g, in-lb) 7.9 (0.81, 70)With ATF applied
7.9 (0.81, 70)
SCIA8124E
JSDIA1319ZZ
JSDIA1320ZZ
SCIA5299E
Revision: April 20092010 QX56

WCS-2
Wiring Diagram .......................................................23
ECU DIAGNOSIS ..................................... ...28
COMBINATION METER ................................. ...28
Reference Value .................................................. ...28
Wiring Diagram .......................................................30
Fail Safe .................................................................47
DTC Index ..............................................................48
BCM (BODY CONTROL MODULE) ..................50
Reference Value .................................................. ...50
Terminal Layout ......................................................53
Physical Values ......................................................53
Wiring Diagram .......................................................59
Fail Safe .................................................................63
DTC Inspection Priority Chart ..............................64
DTC Index ........................................................... ...64
SYMPTOM DIAGNOSIS .............................66
THE LIGHT REMINDER WARNING DOES
NOT SOUND ................................................... ...
66
Description ........................................................... ...66
Diagnosis Procedure ...............................................66
THE SEAT BELT WARNING CONTINUES
SOUNDING, OR DOES NOT SOUND ...............
67
Description ........................................................... ...67
Diagnosis Procedure ...............................................67
THE KEY WARNING DOES NOT SOUND .......68
Description ........................................................... ...68
Diagnosis Procedure ...............................................68
PRECAUTION ............................................69
PRECAUTIONS .............................................. ...69
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
69
Necessary for Steering Wheel Rotation After Bat-
tery Disconnect .................................................... ...
69
Revision: April 20092010 QX56

WCS-28
< ECU DIAGNOSIS >
COMBINATION METER
ECU DIAGNOSIS
COMBINATION METER
Reference ValueINFOID:0000000005382408
TERMINAL LAYOUT
PHYSICAL VALUES
WKIA5724E
Te r m i -nal Wire
color Item Condition
Reference value (V)
(Approx.)
Ignition
switch Operation or condition
3 Y/L Fuel level sensor signal — —Refer to MWI-12, "
FUEL GAUGE : System
Description".
4 B/P Fuel level sensor ground ON —0
6 BR/W Generator ONGenerator voltage low
0
Generator voltage normal Battery voltage
10 L CAN-H —— —
11 P C A N - L —— —
13 P Air bag warning lamp in-
put ONAir bag warning lamp ON
4
Air bag warning lamp OFF 0
15 BR CK SUSP warning lamp
input —CK SUSP warning lamp
ON
0
CK SUSP warning lamp
OFF Battery voltage
20 B Ground —— 0
21 O/L Ignition switch ON or
START ON
— Battery voltage
23 W/L Washer fluid level switch ON Washer fluid level low
0
Washer fluid level normal Battery voltage
24 O/B Seat belt buckle switch
LH ONUnfastened (ON)
0
Fastened (OFF) Battery voltage
25 P/L Seat belt buckle switch
RH ONUnfastened (ON)
0
Fastened (OFF) Battery voltage
31 G Parking brake switch ON Parking brake applied
0
Parking brake released Battery voltage
32 P/B Brake fluid level switch ON Brake fluid level low
0
Brake fluid level normal Battery voltage
35 G/O Security indicator input OFF Security indicator ON
0
Security indicator OFF Battery voltage
Revision: April 20092010 QX56

WCS
COMBINATION METERWCS-29
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
37 O Ignition switch ACC or
ON
—
— Battery voltage
40 P Battery power supply — —Battery voltage
46 BR Illumination output ——Refer to INL-9, "
System Description".
47 B Ground —— 0
50 W/R Vehicle speed signal out-
put (8-pulse) ONSpeedometer operated
[When vehicle speed is ap-
prox. 40 km/h (25 MPH)] NOTE:
Maximum voltage may be 12V due to spec-
ifications (connected units).
52 B Ground —— 0
Te r m i -
nal Wire
color Item Condition
Reference value (V)
(Approx.)
Ignition
switch Operation or condition
PKIC0643E
Revision: April 20092010 QX56

WCS-30
< ECU DIAGNOSIS >
COMBINATION METER
Wiring Diagram
INFOID:0000000005382409
ABNWA0408GB
Revision: April 20092010 QX56

WCS
COMBINATION METERWCS-31
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
ABNWA0409GB
Revision: April 20092010 QX56

WCS-32
< ECU DIAGNOSIS >
COMBINATION METER
ABNWA0410GB
Revision: April 20092010 QX56