2004 INFINITI QX56 heating

USB 4WD transmission oil oil pressure jacking lights

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INFINITI QX56 2004 Factory Service Manual EC-418Revision: August 2007
DTC P1217 ENGINE OVER TEMPERATURE
2004 QX56
5. CHECK INTERMITTENT INCIDENT
Perform EC-127, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R

EC-418Revision: August 2007
DTC P1217 ENGINE OVER TEMPERATURE
2004 QX56
5. CHECK INTERMITTENT INCIDENT
Perform EC-127, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R. Refer to PG-17, "IPDM E/R (INTELLIGENT POWER DISTRIBUTION MOD-
ULE ENGINE ROOM)" .
NG >> Repair or replace harness connectors.
Main 12 Causes of OverheatingUBS00H8Z
*1: Turn the ignition switch ON.
*2: Engine running at 3,000 rpm for 10 minutes.
*3: Drive at 90 km/h (55 MPH) for 30 minutes and then let idle for 10 minutes.
*4: After 60 minutes of cool down time.
For more information, refer to CO-4, "
OVERHEATING CAUSE ANALYSIS" . Engine Step Inspection item Equipment Standard Reference page
OFF 1
Blocked radiator
Blocked condenser
Blocked radiator grille
Blocked bumper
Visual No blocking —
2
Coolant mixtureCoolant tester 50 - 50% coolant mixtureMA-10, "RECOM-
MENDED FLUIDS AND
LUBRICANTS"
3Coolant levelVisual Coolant up to MAX level
in reservoir tank and radi-
ator filler neckCO-8, "Changing Engine
Coolant"
4Radiator capPressure tester 59 - 98 kPa
(0.6 - 1.0 kg/cm2 , 9 - 14
psi) (Limit)CO-8, "
CHECKING RES-
ERVOIR CAP"
ON*25Coolant leaksVisual No leaksCO-8, "CHECKING
COOLING SYSTEM FOR
LEAKS"
ON*26ThermostatTouch the upper and
lower radiator hosesBoth hoses should be hotCO-17, "THERMOSTAT
AND WATER PIPING"
ON*17Cooling fanCONSULT-II Operating See trouble diagnosis for
DTC P1217 (EC-410,
"DTC P1217 ENGINE
OVER TEMPERA-
TURE" ).
OFF 8
Combustion gas leakColor checker chemical
tester 4 Gas analyzerNegative —
ON*
39Coolant temperature
gaugeVisual Gauge less than 3/4
when driving—
Coolant overflow to
reservoir tankVisual No overflow during driving
and idlingCO-8, "Changing Engine
Coolant"
OFF*410Coolant return from
reservoir tank to radia-
torVisual Should be initial level in
reservoir tankCO-8, "Changing Engine
Coolant"
OFF 11Cylinder headStraight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)EM-64, "Inspection After
Disassembly"
12Cylinder block and pis-
tonsVisual No scuffing on cylinder
walls or pistonEM-89, "Inspection After
Disassembly"

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INFINITI QX56 2004 Factory Service Manual SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Revision: August 20072004 QX56
UNDER SEATING AREAS
An unclamped or loose harness can cause wiring to be pinched by seat comp

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Revision: August 20072004 QX56
UNDER SEATING AREAS
An unclamped or loose harness can cause wiring to be pinched by seat components (such as slide guides)
during vehicle vibration. If the wiring runs under seating areas, inspect wire routing for possible damage or
pinching.
Heat Sensitive
The customer's concern may occur during hot weather or after car
has sat for a short time. In such cases you will want to check for a
heat sensitive condition.
To determine if an electrical component is heat sensitive, heat the
component with a heat gun or equivalent.
Do not heat components above 60°C (140°F). If incident occurs
while heating the unit, either replace or properly insulate the compo-
nent.
Freezing
The customer may indicate the incident goes away after the car
warms up (winter time). The cause could be related to water freezing
somewhere in the wiring/electrical system.
There are two methods to check for this. The first is to arrange for
the owner to leave his car overnight. Make sure it will get cold
enough to demonstrate his complaint. Leave the car parked outside
overnight. In the morning, do a quick and thorough diagnosis of
those electrical components which could be affected.
The second method is to put the suspect component into a freezer
long enough for any water to freeze. Reinstall the part into the car
and check for the reoccurrence of the incident. If it occurs, repair or
replace the component.
Water Intrusion
The incident may occur only during high humidity or in rainy/snowy
weather. In such cases the incident could be caused by water intru-
sion on an electrical part. This can be simulated by soaking the car
or running it through a car wash.
Do not spray water directly on any electrical components.
Electrical Load
The incident may be electrical load sensitive. Perform diagnosis with
all accessories (including A/C, rear window defogger, radio, fog
lamps) turned on.
SGI842
SGI843
SGI844
SGI845

Page 3038 of 3371

INFINITI QX56 2004 Factory Service Manual HEATED SEAT
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Revision: August 20072004 QX56
H E AT E D S E ATPFP:87335
Description EIS002ZF
When handling seat, be extremely careful not to scratch heating unit.
To r

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INFINITI QX56 2004 Factory Service Manual FRONT SEAT
SE-97
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Revision: August 20072004 QX56
1. Headrest 2. Headrest holder with multi-position
lock 3. Seatback assembly
4. Lumbar switch bezel 5. Power seat switch esc

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INFINITI QX56 2004 Factory Service Manual REAR SEAT
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Revision: August 20072004 QX56
REAR SEATPFP:88300
Removal and InstallationEIS002ZK
SECOND ROW OUTBOARD
Removal
1. Remove seat base trim cover.
2. Lift handle

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INFINITI QX56 2004 Factory Service Manual SE-106
REAR SEAT
Revision: August 20072004 QX56
1. Headrest 2. Seatback pad 3. Seatback frame
4. Rear seat bezel 5. RH Headrest guide 6. LH Headrest guide
7. Seat back panel 8. Seat actuator assembly

Page 3059 of 3371

INFINITI QX56 2004 Factory Service Manual SE-110
REAR SEAT
Revision: August 20072004 QX56
7. Headrest 8. Seat latch and recliner release 9. Reclining device outer cover
10. Reclining device lever 11. Reclining device outer mid cover 12. Outer

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air condition battery location spare wheel sat nav set clock dimensions