2008 INFINITI QX56 oil temperature

MWI
METER SYSTEMMWI-21
< FUNCTION DIAGNOSIS >
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INFORMATION DISPLAY : Co mponent Parts LocationINFOID:0000000001696377
INFORMATION DISPLAY : Component DescriptionINFOID:0000000001691281
1. IPDM E/R E122, E124 2. Combination meter M23, M24 3. Fuel level sensor unit and fuel pump
C5 (view with inspection hole cover re-
moved)
4. ECM E16 (view with battery removed) 5. ABS actuator and electric unit (control unit) E1256. Oil pressure switch F4
A: Oil pan (upper)
7. A/T assembly F9 8. BCM M18, M19 (view with instrument
lower panel LH removed)
AWNIA0201ZZ
Unit Description
Combination meter Controls the information display according to the signal received from each unit.
Fuel level sensor unit Refer to MWI-33, "
Description".
BCM Transmits signals provided by various units to the combination meter via CAN communication line.
Washer level switch Transmits the washer level signal to the combination meter.
Parking brake switch Refer to MWI-36, "
Description".
Door switch Transmits the door switch signals to BCM.
Back door latch (door ajar switch) Transmits the back door switch signal to BCM.
Glass hatch ajar switch Transmits the glass hatch ajar switch signal to BCM.
TCM Transmits A/T oil temperature signal to the combination meter with CAN communication line.
Revision: March 2010 2008 QX56

MWI-26
< FUNCTION DIAGNOSIS >
DIAGNOSIS SYSTEM (METER)
X: Applicable
Display item [Unit]MAIN
SIGNALS SELECTION
FROM MENU Description
SPEED METER [km/h] or [mph] X X Displays the value of vehicle speed signal.
SPEED OUTPUT [km/h] or [mph] X XDisplays the value of vehicle speed signal, which is transmitted to
each unit with
CAN communication.
TACHO METER [rpm] XX Displays the value of engine speed signal, which is input from ECM.
FUEL METER [lit.] XXDisplays the value, which processes a resistance signal from fuel
gauge.
W TEMP METER [ °C] or [° F] X XDisplays the value of engine coolant temperature signal, which is in-
put from ECM.
ABS W/L [ON/OFF] X Displays [ON/OFF] condition of ABS warning lamp.
VDC/TCS IND [ON/OFF] X Displays [ON/OFF] condition of VDC OFF indicator lamp.
SLIP IND [ON/OFF] X Displays [ON/OFF] condition of SLIP indicator lamp.
BRAKE W/L [ON/OFF] X Displays [ON/OFF] condition of brake warning lamp.*
DOOR W/L [ON/OFF] X Displays [ON/OFF] condition of door warning lamp.
TRUNK W/L [ON/OFF] X Displays [ON/OFF] condition of glass hatch warning lamp.
HI-BEAM IND [ON/OFF] X Displays [ON/OFF] condition of high beam indicator.
TURN IND [ON/OFF] X Displays [ON/OFF] conditio n of turn indicator.
OIL W/L [ON/OFF] X Displays [ON/OFF] condition of oil pressure warning lamp.
C-ENG W/L [ON/OFF] X Displays [ON/OFF] condition of malfunction indicator lamp.
CRUISE IND [ON/OFF] X Displays [ON/OFF] condition of CRUISE indicator.
SET IND [ON/OFF] X Displays [ON/OFF] condition of SET indicator.
AT CHECK W/L [ON/OFF] X Displays [ON/OFF] condition of AT CHECK warning lamp.
FUEL W/L [ON/OFF] XX Displays [ON/OFF] condition of low-fuel warning lamp.
AIR PRES W/L [ON/OFF] X Displays [ON/OFF] condition of tire pressure warning lamp.
KEY G W/L [ON/OFF] X Displays [ON/OFF] condition of key green warning lamp.
KEY R W/L [ON/OFF] X Displays [ON/OFF] condition of key red warning lamp.
KEY KNOB W/L [ON/OFF] X Displays [ON/OFF] condition of key knob warning lamp.
M RANGE SW [ON/OFF] XX Displays [ON/OFF] condition of manual mode range switch.
NM RANGE SW [ON/OFF] XXDisplays [ON/OFF] condition of except for manual mode range
switch.
AT SFT UP SW [ON/OFF] XX Displays [ON/OFF] condition of A/T shift-up switch.
AT SFT DWN SW [ON/OFF] XX Displays [ON/OF F] condition of A/T shift-down switch.
DISTANCE [km] or [mile] XXDisplays the value, which is calculated by vehicle speed signal, fuel
gauge and fuel consumption from ECM.
BUZZER [ON/OFF] XX Displays [ON/ OFF] condition of buzzer.
BRAKE SW [ON/OFF] X Indicates [ON/OFF] condition of parking brake switch.
AT-M GEAR [1, 2, 3, 4, 5] XX Indicates [1, 2, 3, 4, 5] condition of A/T manual mode gear position.
P RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift P range indicator.
R RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift R range indicator.
N RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift N range indicator.
D RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift D range indicator.
4 RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift 4 range indicator.
3 RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift 3 range indicator.
2 RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift 2 range indicator.
1 RANGE IND [ON/OFF] XX Indicates [ON/OFF] condition of A/T shift 1range indicator.
Revision: March 2010 2008 QX56

MWI-62
< ECU DIAGNOSIS >
COMBINATION METER
DTC Index
INFOID:0000000001691312
Function Specifications
Speedometer
Zero indication.
Tachometer
Fuel gauge
Engine coolant temperature gauge
Engine oil pressure gauge
Voltage gauge
A/T oil temperature gauge
Illumination control
Meter illumination Change to nighttime mode when communication is lost.
Segment LCD Odometer
Freeze current indication.
A/T position Display turns off.
Buzzer Buzzer turns off.
Warning lamp/indicator lamp ABS warning lamp
Lamp turns on when communication is lost.
Brake warning lamp
VDC OFF indicator lamp
SLIP indicator lamp
A/T CHECK warning lamp
Lamp turns off when communication is lost.
Oil pressure/coolant temperature
warning lamp
Light indicator
Malfunction indicator lamp
Master warning lamp
Air bag warning lamp
High beam indicator
Turn signal indicator lamp
CRUISE indicator lamp
Driver and passenger seat belt warn-
ing lamp
Lamp turns off when disconnected.
Charge warning lamp
Security indicator lamp
4WD indicator lamp
AT P i n d i c a t o r l a m p
CK SUSP warning lamp
Low tire pressure warning lamp
Lamp will flash every second for 1 minute and then stay on con-
tinuously thereafter.
CONSULT-III display
MalfunctionReference
page
CAN COMM CIRC
[U1000] Malfunction is detected in CAN communication.
CAUTION:
Even when there is no malfunction on CAN communication system, malfunction may be
misinterpreted when battery has low voltage (when maintaining 7 - 8 V for about 2 sec-
onds) or 10A fuse [No. 19, located in
the fuse block (J/B)] is disconnected. MWI-28
VEHICLE SPEED
CIRC
[B2205]Malfunction is detected when an erroneous speed signal is input.
CAUTION:
Even when there is no malfunction on speed signal system, malfunction may be misin-
terpreted when battery has lo
w voltage (when maintaining 7 - 8 V for about 2 seconds). MWI-29
Revision: March 2010
2008 QX56

PCS
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE ROOM)
PCS-19
< ECU DIAGNOSIS > [IPDM E/R]
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ECU DIAGNOSIS
IPDM E/R (INTELLIGENT POWER
DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000001696496
VALUES ON THE DIAGNOSIS TOOL
Monitor Item ConditionValue/Status
MOTOR FAN REQ Engine idle speed Changes depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.0 - 100 %
A/C COMP REQ A/C switch OFF
OFF
A/C switch ON ON
TA I L & C L R R E Q Lighting switch OFF
OFF
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated) ON
HL LO REQ Lighting switch OFF
OFF
Lighting switch 2ND HI or AUTO (Light is illuminated) ON
HL HI REQ Lighting switch OFF
OFF
Lighting switch HI ON
FR FOG REQ Lighting switch 2ND or AUTO (Light
is illuminated) Front fog lamp switch OFF OFF
• Front fog lamp switch ON
• Daytime light activated (Canada
only) ON
HL WASHER REQ NOTE:
This item is displayed, but cannot be monitored. OFF
FR WIP REQ Ignition switch ON Front wiper switch OFF
STOP
Front wiper switch INT 1LOW
Front wiper switch LO LOW
Front wiper switch HI HI
WIP AUTO STOP Ignition switch ON Front wiper stop position
STOP P
Any position other than front wiper
stop position ACT P
WIP PROT Ignition switch ON Front wiper operates normally OFF
Front wiper stops at fail-safe opera-
tion
BLOCK
ST RLY REQ Ignition switch OFF or ACC
OFF
Ignition switch START ON
IGN RLY Ignition switch OFF or ACC
OFF
Ignition switch ON ON
RR DEF REQ Rear defogger switch OFF
OFF
Rear defogger switch ON ON
OIL P SW Ignition switch OFF, ACC or engine running
OPEN
Ignition switch ON CLOSE
DTRL REQ Daytime light system requested OFF with CONSULT-III.
OFF
Daytime light system reques ted ON with CONSULT-III. ON
Revision: March 2010 2008 QX56

PG
HARNESSPG-49
< COMPONENT DIAGNOSIS >
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C3 F7 GR/3
: Ignition coil No. 4 (with power
transistor) F1 F60 GR/2 : Neutral-4LO switch
C3 F8 GR/3 : Ignition coil No. 6 (with power
transistor)
D5 F61 G/2: Intake valve timing control solenoid valve
(bank 1)
E2 F9 G/10 : A/T assembly D5 F62 G/2: Intake valve timing control position sensor
(bank 1)
C3 F10 — : Engine ground C4 F63 G/2: Intake valve timing control solenoid valve
(bank 2)
D3 F11 B/3 : Crankshaft position sensor (POS) C4 F64 G/2 : Intake valve timing control position sensor
(bank 2)
E1 F12 G/4 : Heated oxygen sensor 2 (bank2) E3 F65 GR/4 : Air fuel ratio (A/F) sensor 1 (bank1)
F2 F13 G/4 : Heated oxygen sensor 2 (bank1) C2 F68 B/2 : Water valve
B2 F14 W/24 : To E5 C3 F101 B/6 : To F26
D4 F15 L/2 : EVAP canister purge volume control
solenoid valve C3 F102 B/2 : Knock sensor (bank 1)
E5 F16 — : Engine ground C3 F103 GR/2 : Engine coolant temperature sensor
C4 F18 GR/2 : Fuel injector No. 2 C3 F104 B/2 : Knock sensor (bank 2)
D4 F20 GR/2 : Fuel injector No. 4
F4 F21 W/2 : Condenser-1
D3 F22 GR/2 : Fuel injector No. 6
D4 F23 B/3 : Camshaft position sensor (phase)
D4 F26 B/6 : To F101
E3 F27 B/1 : Starter motor
D4 F30 GR/2 : Fuel injector No. 1
D3 F31 GR/2 : Fuel injector No. 8
B2 F32 W/16 : To E2
C2 F33 W/16 : To E19
C2 F34 W/2 : To E39
B3 F39 — : Fusible link (battery)
D4 F41 GR/2 : Fuel injector No. 3
D4 F42 GR/2 : Fuel injector No. 5
D3 F45 GR/2 : Fuel injector No. 7
B4 F46 B/3 : Power steering pressure sensor
E4 F47 GR/3 : Ignition coil No. 1 (with power
transistor)
E4 F48 GR/3 : Ignition coil No. 3 (with power
transistor)
E4 F49 GR/3 : Ignition coil No. 5 (with power
transistor)
D4 F50 B/6 : Electric throttle control actuator
E4 F51 GR/3 : Ignition coil No. 7 (with power
transistor)
D2 F52 GR/3 : Ignition coil No. 8 (with power
transistor)
E5 F53 B/6 : Mass air flow sensor
B2 F54 B/81 : ECM
F1 F55 B/2 : ATP switch
Revision: March 2010 2008 QX56

SEC-98
< ECU DIAGNOSIS >[WITH INTELLIGENT KEY SYSTEM]
IPDM E/R (INTELLIGENT POWER DI
STRIBUTION MODULE ENGINE ROOM)
IPDM E/R (INTELLIGENT POWER DISTRIBUTION MODULE ENGINE
ROOM)
Reference ValueINFOID:0000000004807922
VALUES ON THE DIAGNOSIS TOOL
Monitor Item ConditionValue/Status
MOTOR FAN REQ Engine idle speed Changes depending on engine
coolant temperature, air conditioner
operation status, vehicle speed,
etc.0 - 100 %
A/C COMP REQ A/C switch OFF
OFF
A/C switch ON ON
TAIL&CLR REQ Lighting switch OFF
OFF
Lighting switch 1ST, 2ND, HI or AUTO (Light is illuminated) ON
HL LO REQ Lighting switch OFF
OFF
Lighting switch 2ND HI or AUTO (Light is illuminated) ON
HL HI REQ Lighting switch OFF
OFF
Lighting switch HI ON
FR FOG REQ Lighting switch 2ND or AUTO (Light
is illuminated) Front fog lamp switch OFF OFF
• Front fog lamp switch ON
• Daytime light activated (Canada
only) ON
HL WASHER REQ NOTE:
This item is displayed, but cannot be monitored.
OFF
FR WIP REQ Ignition switch ON Front wiper switch OFF
STOP
Front wiper switch INT 1LOW
Front wiper switch LO LOW
Front wiper switch HI HI
WIP AUTO STOP Ignition switch ON Front wiper stop position
STOP P
Any position other than front wiper
stop position ACT P
WIP PROT Ignition switch ON Front wiper operates normally OFF
Front wiper stops at fail-safe opera-
tion
BLOCK
ST RLY REQ Ignition switch OFF or ACC
OFF
Ignition switch START ON
IGN RLY Ignition switch OFF or ACC
OFF
Ignition switch ON ON
RR DEF REQ Rear defogger switch OFF
OFF
Rear defogger switch ON ON
OIL P SW Ignition switch OFF, ACC or engine running
OPEN
Ignition switch ON CLOSE
DTRL REQ Daytime light system requested OFF with CONSULT-III.
OFF
Daytime light system requested ON with CONSULT-III. ON
HOOD SW Hood closed.
OFF
Hood open. ON
Revision: March 2010 2008 QX56

SIDE CURTAIN AIR BAG MODULESR-13
< ON-VEHICLE REPAIR >
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SIDE CURTAIN AIR BAG MODULE
Removal and InstallationINFOID:0000000001602204
REMOVAL
CAUTION:
• Do not attempt to repair or replace damaged direct-connect SRS component connectors. If a direct- connect harness connector is damage d, the harness must be replaced.
• Before servicing the SRS, turn the ignition switch off, disconnect both battery cables and wait at least 3 minutes.
• When servicing the SRS, do not work from directly in front of air bag module.
• Do not insert any foreign objects (screwdriver, etc.) into air bag module or harness connectors.
• Do not disassemble air bag module.
• Do not expose the air bag modu le to temperatures exceeding 90°C (194 °F).
• Replace side curtain air bag modu le if it has been dropped or
sustained an impact.
• Do not allow oil, grease or water to come in contact with the
air bag module.
1. Remove headlining. Refer to INT-17, "
Removal and Installation".
2. Disconnect front and rear side curtain air bag module connec- tors.
• For removal/installation of the direct-connect SRS connectors,refer to SRC-9, "
Direct-connect SRS Component Connectors".
3. Remove the bolts in order starting at the front or rear, and remove the side curtain air bag module.
INSTALLATION
Installation is in the reverse order of removal.
• For removal/installation of the direct-connect SRS connectors, refer to SRC-9, "
Direct-connect SRS Compo-
nent Connectors".
• After replacement of side curtain air bag module, per form self-diagnosis to check that no malfunction is
detected. Refer to SRC-13, "
SRS Operation Check".
1. Rear side curtain air bag module
connector 2. Front side curtain air bag module
connector ⇐
Vehicle front
WHIA0294E
SBF814E
Revision: March 2010 2008 QX56

POWER STEERING FLUIDST-13
< ON-VEHICLE MAINTENANCE >
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ON-VEHICLE MAINTENANCE
POWER STEERING FLUID
Checking Fluid LevelINFOID:0000000001534691
Check power steering fluid level with engine off, referring to the scale
on reservoir tank.
Use HOT range for fluid temperatures of 50 ° – 80 °C (122 ° – 176 °F).
Use COLD range for fluid temperatures of 0 ° – 30 °C (32° – 86°F).
CAUTION:
• Do not overfill.
• Do not reuse any used power steering fluid.
• Recommended fluid is Genuine NISSAN PSF or equivalent. Refer to MA-12, "
Fluids and Lubricants" .
Checking Fluid LeakageINFOID:0000000001534692
Check the hydraulic piping lines for improper attachment and for
leaks, cracks, damage, loose connec tions, chafing or deterioration.
1. Run engine until fluid temperature reaches 50 ° – 80° C (122° –
176° F) in reservoir tank. Keep engine speed idle.
2. Turn steering wheel right-to-left several times.
3. Hold steering wheel at each “lock” position for five seconds to check fluid leakage.
CAUTION:
Do not hold steering wheel in a locked position for more
than 10 seconds. (There is the possibility that oil pump may
be damaged.)
4. If fluid leakage at connections is noticed, then loosen flare nut and then retighten. Do not over tighten con- nector as this can damage O-ring, washer and connector.
5. If fluid leakage from oil pump is noticed, check oil pump. Refer to ST-17, "
On-Vehicle Inspection and Ser-
vice".
6. Check steering gear boots for accumulation of fluid indicating a leak from the steering gear.
Air Bleeding Hydraulic SystemINFOID:0000000001534693
Incomplete air bleeding causes the following. When this happens, bleed air again.
• Air bubbles in reservoir tank.
• Clicking noise in oil pump.
• Excessive buzzing in oil pump. NOTE:
When vehicle is stationary or while steering wheel is being turned slowly, some noise may be heard from oil
pump or gear. This noise is normal and does not affect any system.
1. Stop engine, and then turn steering wheel fully to right and left several times. CAUTION:
Do not allow steering fluid reservoir tank to go below the MIN level line. Check tank frequently and
add fluid as needed.
2. Run engine at idle speed. Turn steering wheel fully right and then fully left, hold for about three seconds.
Then check for fluid leakage.
3. Repeat step 2 several times at about three second intervals. CAUTION:
Do not hold steeri ng wheel in the locked position for more than 10 seconds. (There is the possibil-
ity that oil pump may be damaged.)
4. Check for air bubbles or cloudy fluid.
LGIA0021E
SGIA0506E
Revision: March 2010 2008 QX56