2008 INFINITI QX56 ECU

ASSEMBLYTM-269
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
I
J
K L
M A
B
TM
N
O P
ASSEMBLY
Assembly (1)INFOID:0000000004917902
1. Drive manual shaft oil seals into the transmission case until they are flush using suitable tool.
CAUTION:
• Apply ATF to manual shaft oil seals.
• Do not reuse manual shaft oil seals.
2. Install detent spring and spacer in transmission case and secure with the bolt.
3. Install manual shaft to transmission case.
4. Install parking rod to manual plate.
SCIA5259E
Bolt : 7.9 N·m (0.81 kg-m, 70 in-lb)
SCIA5248E
SCIA5716E
SCIA5220E
Revision: March 2010 2008 QX56

TM-272
< DISASSEMBLY AND ASSEMBLY >
ASSEMBLY
15. Install 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 using a flat-bladed screwdriver so
that snap ring tension is slightly weak.
18. Install reversr brake drive plates driven plates and dish plates in transmission case. CAUTION:
SCIA3333E
SCIA2324E
Tool number : KV31102400 (J-34285 and J-34285-87)
SCIA5877E
Revision: March 2010 2008 QX56

ASSEMBLYTM-287
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
I
J
K L
M A
B
TM
N
O P
d. Install O-ring to A/T assembly harness connector. CAUTION:
• Do not reuse O-ring.
• Apply ATF to O-ring.
e. Install A/T fluid temperature sensor 2 to bracket.
f. Install A/T fluid temperature sensor 2 (with bracket) to control valve with TCM and tighten bolt to specified torque.
CAUTION:
Adjust bolt hole of bracket to bolt hole of control valve.
g. Install control valve with TCM in transmission case. CAUTION:
• Make sure that turbine input speed sensor is securelyinstalled into turbine 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.
SCIA5155E
SCIA5264E
Bracket bolt : 7.9 N·m (0.81 kg-m, 70 in-lb)
SCIA5301E
1 : Brake band
JSDIA1318ZZ
Revision: March 2010 2008 QX56

TM-288
< DISASSEMBLY AND ASSEMBLY >
ASSEMBLY
• Assemble it so that manual valve cutout is engaged withmanual plate projection.
h. Install bolts (A), (B) and (C) to control valve with TCM.
i. Tighten bolt (1A), (2B) and (3A) temporarily to prevent disloca- tion. After that tighten them in order (1 → 2 → 3), and then
tighten other bolts.
10. Connect A/T fluid temperature sensor 2 connector (A).
11. Securely fasten terminal cord assembly and A/T fluid tempera- ture sensor 2 harness with terminal clips.
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 56 1
Length mm (in) 42 (1.65) 55 (2.17) 40 (1.57)
Tightening torque
N·m (km-g, in-lb) 7.9 (0.81, 70)With ATF applied
7.9 (0.81, 70)
SCIA8078E
SCIA8124E
Revision: March 2010 2008 QX56

ASSEMBLYTM-289
< DISASSEMBLY AND ASSEMBLY >
CEF
G H
I
J
K L
M A
B
TM
N
O P
12. Connect output speed sensor connector (1).
13. Securely fasten output speed sensor harness with terminal clip ().
14. Pull down A/T assembly harness connector. CAUTION:
Do not damage connector.
15. Install snap ring to A/T assembly harness connector.
16. Install magnets in oil pan.
JSDIA1319ZZ
JSDIA1320ZZ
SCIA5299E
SCIA5300E
SCIA5200E
Revision: March 2010 2008 QX56

WCS-2
WARNING CHIME SYSTEM .............................24
Wiring Diagram .................................................... ...24
ECU DIAGNOSIS ..................................... ...29
COMBINATION METER ................................. ...29
Reference Value .................................................. ...29
Wiring Diagram .......................................................31
Fail Safe .................................................................48
DTC Index ..............................................................49
BCM (BODY CONTROL MODULE) ..................51
Reference Value .................................................. ...51
Terminal Layout ......................................................53
Physical Values ......................................................53
Wiring Diagram .......................................................59
Fail Safe .................................................................62
DTC Inspection Priority Chart ..............................63
DTC Index ........................................................... ...63
SYMPTOM DIAGNOSIS .............................65
THE LIGHT REMINDER WARNING DOES
NOT SOUND ................................................... ...
65
Description ........................................................... ...65
Diagnosis Procedure ...............................................65
THE SEAT BELT WARNING CONTINUES
SOUNDING, OR DOES NOT SOUND ...............
66
Description ........................................................... ...66
Diagnosis Procedure ...............................................66
THE KEY WARNING DOES NOT SOUND .......67
Description ........................................................... ...67
Diagnosis Procedure ...............................................67
PRECAUTION ............................................68
PRECAUTIONS .............................................. ...68
Precaution for Supplemental Restraint System
(SRS) "AIR BAG" and "SEAT BELT PRE-TEN-
SIONER" .............................................................. ...
68
Precaution Necessary for Steering Wheel Rota-
tion After Battery Disconnect ..................................
68
Revision: March 2010 2008 QX56

WCS
COMBINATION METERWCS-29
< ECU DIAGNOSIS >
C
DE
F
G H
I
J
K L
M B A
O P
ECU DIAGNOSIS
COMBINATION METER
Reference ValueINFOID:0000000004871168
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
33 R/G Stop lamp switch —Brake pedal depressed
Battery voltage
Brake pedal released 0
Revision: March 2010 2008 QX56

WCS-30
< ECU DIAGNOSIS >
COMBINATION METER
35 G/O Security indicator input OFFSecurity indicator ON 0
Security indicator OFF
Battery voltage
37 O Ignition switch ACC or
ON
—
— Battery voltage
40 Y/R 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: March 2010
2008 QX56