2004 INFINITI QX56 Factory Service Manual

battery replacement dead battery tow warning lights checking oil keyless entry

Page 1609 of 3371

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"

Page 1610 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P1217 ENGINE OVER TEMPERATURE
EC-419
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Revision: August 20072004 QX56
Component InspectionUBS00H90
COOLING FAN MOTOR
1. Disconnect cooling fan motor harness connector.
2. S

Page 1611 of 3371

INFINITI QX56 2004 Factory Service Manual EC-420Revision: August 2007
DTC P1225 TP SENSOR
2004 QX56
DTC P1225 TP SENSORPFP:16119
Component DescriptionUBS00H91
Electric throttle control actuator consists of throttle control motor,
throttle pos

Page 1612 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P1225 TP SENSOR
EC-421
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Revision: August 20072004 QX56
Diagnostic ProcedureUBS00H94
1. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Re

Page 1613 of 3371

INFINITI QX56 2004 Factory Service Manual EC-422Revision: August 2007
DTC P1226 TP SENSOR
2004 QX56
DTC P1226 TP SENSORPFP:16119
Component DescriptionUBS00H96
Electric throttle control actuator consists of throttle control motor,
throttle pos

Page 1614 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P1226 TP SENSOR
EC-423
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EC
Revision: August 20072004 QX56
Diagnostic ProcedureUBS00H99
1. CHECK ELECTRIC THROTTLE CONTROL ACTUATOR VISUALLY
1. Turn ignition switch OFF.
2. Re

Page 1615 of 3371

INFINITI QX56 2004 Factory Service Manual EC-424Revision: August 2007
DTC P1229 SENSOR POWER SUPPLY
2004 QX56
DTC P1229 SENSOR POWER SUPPLYPFP:16119
On Board Diagnosis LogicUBS00H9B
This self-diagnosis has the one trip detection logic.
FAIL -

Page 1616 of 3371

INFINITI QX56 2004 Factory Service Manual DTC P1229 SENSOR POWER SUPPLY
EC-425
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Revision: August 20072004 QX56
Wiring DiagramUBS00H9D
BBWA1699E

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