2005 INFINITI QX4 heating

oil reset radio wiring TPMS automatic transmission fluid cooling

Page 1639 of 3419

INFINITI QX4 2005 Factory Service Manual EC-448Revision: October 2005
DTC P1217 ENGINE OVER TEMPERATURE
2005 QX56
5. CHECK INTERMITTENT INCIDENT
Perform EC-156, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
OK or NG
OK >> Replace IPDM E/R

EC-448Revision: October 2005
DTC P1217 ENGINE OVER TEMPERATURE
2005 QX56
5. CHECK INTERMITTENT INCIDENT
Perform EC-156, "
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-6, "
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-11, "RECOM-
MENDED FLUIDS AND
LUBRICANTS"
3Coolant levelVisual Coolant up to MAX level
in reservoir tank and radi-
ator filler neckCO-10, "Changing
Engine Coolant"
4Radiator capPressure tester 59 - 98 kPa
(0.6 - 1.0 kg/cm2 , 9 - 14
psi) (Limit)CO-10, "
CHECKING
RESERVOIR CAP"
ON*25Coolant leaksVisual No leaksCO-10, "CHECKING
COOLING SYSTEM FOR
LEAKS"
ON*26ThermostatTouch the upper and
lower radiator hosesBoth hoses should be hotCO-19, "THERMOSTAT
AND WATER PIPING"
ON*17Cooling fanCONSULT-II Operating See trouble diagnosis for
DTC P1217 (EC-440,
"DTC P1217 ENGINE
OVER TEMPERATURE"
).
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-10, "Changing
Engine Coolant"
OFF*410Coolant return from
reservoir tank to radia-
torVisual Should be initial level in
reservoir tankCO-10, "Changing
Engine Coolant"
OFF 11Cylinder headStraight gauge feeler
gauge0.1 mm (0.004 in) Maxi-
mum distortion (warping)EM-63, "Inspection After
Disassembly"
12Cylinder block and pis-
tonsVisual No scuffing on cylinder
walls or pistonEM-89, "Inspection After
Disassembly"

Page 2130 of 3419

INFINITI QX4 2005 Factory Service Manual SERVICE INFORMATION FOR ELECTRICAL INCIDENT
GI-29
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Revision: October 20052005 QX56
An unclamped or loose harness can cause wiring to be pinched by seat components (such as sli

SERVICE INFORMATION FOR ELECTRICAL INCIDENT
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Revision: October 20052005 QX56
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.
Cold or Hot Start Up
On some occasions an electrical incident may occur only when the car is started cold, or it may occur when
the car is restarted hot shortly after being turned off. In these cases you may have to keep the car overnight to
make a proper diagnosis.
SGI842
SGI843
SGI844
SGI845

Page 3055 of 3419

INFINITI QX4 2005 Factory Service Manual SE-90
HEATED SEAT
Revision: October 20052005 QX56
HEATED SEATPFP:87335
Description EIS004YP
When handling seat, be extremely careful not to scratch heating unit.
To replace heating unit, seat trim a

Page 3063 of 3419

INFINITI QX4 2005 Factory Service Manual SE-98
FRONT SEAT
Revision: October 20052005 QX56
1. Headrest 2. Headrest holder 3. Seatback assembly
4. Armrest assembly 5. Seat cushion trim cover 6. Seat cushion pad
7. Seat cushion heating element

Page 3069 of 3419

INFINITI QX4 2005 Factory Service Manual SE-104
REAR SEAT
Revision: October 20052005 QX56
REAR SEATPFP:88300
Removal and InstallationEIS004YU
SECOND ROW OUTBOARD
Removal
1. Remove seat base trim cover.
2. Lift handle and tilt seat forward.
3

Page 3072 of 3419

INFINITI QX4 2005 Factory Service Manual REAR SEAT
SE-107
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SE
Revision: October 20052005 QX56
1. Headrest 2. Seatback pad 3. Seatback frame
4. Rear seat bezel 5. RH Headrest guide 6. LH Headrest guide
7. Seat back pan

Page 3076 of 3419

INFINITI QX4 2005 Factory Service Manual REAR SEAT
SE-111
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SE
Revision: October 20052005 QX56
7. Headrest 8. Seat latch and recliner release 9. Reclining device outer cover
10. Reclining device lever 11. Reclining devic

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