2007 INFINITI FX35 radiator cap
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![INFINITI FX35 2007 Service Manual EC-502
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DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS003UM
PROCEDURE A
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO](/manual-img/42/57018/w960_57018-1877.png "INFINITI FX35 2007 Service Manual EC-502
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DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS003UM
PROCEDURE A
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO")
EC-502
[VQ35DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
Diagnostic ProcedureNBS003UM
PROCEDURE A
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Yes >> GO TO 2.
No >> GO TO 3.
2. CHECK COOLING FAN OPERATION
With CONSULT-II
1. Start engine and let it idle.
2. Select “COOLING FAN” in “ACTIVE TEST” mode with CON- SULT-II.
3. Make sure that cooling fans-1 and -2 operate at each speed (LOW/MID/HI).
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to EC-504, "
PRO-
CEDURE B" .)
3. CHECK COOLING FAN OPERATION
Without CONSULT-II
1. Perform IPDM E/R auto active test and check cooling fan motors operation, refer to PG-21, "
Auto Active
Te s t" .
2. Make sure that cooling fans-1 and -2 operate at each speed (Low/Middle/High).
OK or NG
OK >> GO TO 4.
NG >> Check cooling fan control circuit. (Go to EC-504, "
PROCEDURE B" .)
4. CHECK COOLING SYSTEM FOR LEAK
Refer to CO-11, "
LEAK CHECK" .
OK or NG
OK >> GO TO 5.
NG >> Check the following for leak.
Hose
Radiator
Water pump
5. CHECK RADIATOR CAP
Refer to CO-15, "
Checking Radiator Cap" .
OK or NG
OK >> GO TO 6.
NG >> Replace radiator cap.
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![INFINITI FX35 2007 Service Manual DTC P1217 ENGINE OVER TEMPERATURE EC-507
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Main 12 Causes of OverheatingNBS003UN
*1: Turn the ignition switch ON.
*2:](/manual-img/42/57018/w960_57018-1882.png "INFINITI FX35 2007 Service Manual DTC P1217 ENGINE OVER TEMPERATURE EC-507
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Main 12 Causes of OverheatingNBS003UN
*1: Turn the ignition switch ON.
*2:")
DTC P1217 ENGINE OVER TEMPERATURE EC-507
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Main 12 Causes of OverheatingNBS003UN
*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-7, "
OVERHEATING CAUSE ANALYSIS" .
Component InspectionNBS003UO
COOLING FAN MOTORS-1 AND -2
1. Disconnect cooling fan motor harness connectors.
2. Supply cooling fan motor terminals with battery voltage and check operation.
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 mixture MA-13, "Anti-Freeze
Coolant Mixture Ratio"
3Coolant levelVisual Coolant up to MAX level
in reservoir tank and radi-
ator filler neck CO-11, "Changing
Engine Coolant"
4Radiator capPressure tester 59 - 98 kPa
(0.6 - 1.0 kg/cm2 , 9 - 14
psi) (Limit) CO-15, "
Checking Radia-
tor Cap"
ON*25Coolant leaksVisual No leaks
CO-11, "LEAK CHECK"
ON*26ThermostatTouch the upper and
lower radiator hoses Both hoses should be hot
CO-27, "WATER INLET
AND THERMOSTAT
ASSEMBLY"
ON*17Cooling fanCONSULT-II Operating See trouble diagnosis for
DTC P1217 ( EC-496,
"DTC P1217 ENGINE
OVER TEMPERATURE"
).
OFF 8
Combustion gas leakColor checker chemical
tester 4 Gas analyzer Negative —
ON*
39Coolant temperature
gaugeVisual Gauge less than 3/4 when driving —
Coolant overflow to
reservoir tankVisual No overflow during driving and idling CO-11, "Changing
Engine Coolant"
OFF*410Coolant return from
reservoir tank to radia-
torVisual Should be initial level in reservoir tank CO-11, "Changing
Engine Coolant"
OFF 11Cylinder headStraight gauge feeler
gauge 0.1 mm (0.004 in) Maxi-
mum distortion (warping) EM-103, "Cylinder Head
Distortion"
12Cylinder block and pis-
tonsVisual No scuffing on cylinder walls or piston EM-123, "CYLINDER
BLOCK"
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![INFINITI FX35 2007 Service Manual PREPARATION EC-689
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PREPARATIONPFP:00002
Special Service ToolsNBS004JM
The actual shapes of Kent-Moore tools may diff](/manual-img/42/57018/w960_57018-2064.png "INFINITI FX35 2007 Service Manual PREPARATION EC-689
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PREPARATIONPFP:00002
Special Service ToolsNBS004JM
The actual shapes of Kent-Moore tools may diff")
PREPARATION EC-689
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PREPARATIONPFP:00002
Special Service ToolsNBS004JM
The actual shapes of Kent-Moore tools may differ from those of special service tools illustrated here.
Tool number
(Kent-Moore No.)
Tool name Description
EG17650301
(J-33984-A)
Radiator cap tester
adapter Adapting radiator cap tester to radiator cap and
radiator filler neck
a: 28 (1.10) dia.
b: 31.4 (1.236) dia.
c: 41.3 (1.626) dia.
Unit: mm (in)
KV10117100
(J-36471-A)
Heated oxygen
sensor wrench Loosening or tightening heated oxygen sensor 2
with 22 mm (0.87 in) hexagon nut
KV10114400
(J-38365)
Heated oxygen
sensor wrench Loosening or tightening air fuel ratio sensor 1
a: 22 mm (0.87 in)
(J-44321)
Fuel pressure gauge
kit Checking fuel pressure
S-NT564
S-NT379
S-NT636
LEC642
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![INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-761
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Revision: 2006 July 2007 FX35/FX45
1 - 6: The numbers refer to the order of inspection. Cooling
Radiator/Hose/Radiator filler](/manual-img/42/57018/w960_57018-2136.png "INFINITI FX35 2007 Service Manual TROUBLE DIAGNOSIS EC-761
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1 - 6: The numbers refer to the order of inspection. Cooling
Radiator/Hose/Radiator filler")
TROUBLE DIAGNOSIS EC-761
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1 - 6: The numbers refer to the order of inspection. Cooling
Radiator/Hose/Radiator filler cap
55555 55 45 CO-41
,
CO-45
Thermostat 5 CO-53
Water pumpCO-51
Water galleryCO-36
Cooling fan
5 CO-49
Coolant level (Low)/Contami-
nated coolant CO-38
IVIS (INFINITI Vehicle Immobilizer System —
NATS) 11
EC-714 or
BL-205
SYMPTOM
Reference
page
HARD/NO START/RESTART (EXCP. HA)
ENGINE STALL
HESITATION/SURGING/FLAT SPOT
SPARK KNOCK/DETONATION
LACK OF POWER/POOR ACCELERATION
HIGH IDLE/LOW IDLE
ROUGH IDLE/HUNTING
IDLING VIBRATION
SLOW/NO RETURN TO IDLE
OVERHEATS/WATER TEMPERATURE HIGH
EXCESSIVE FUEL CONSUMPTION
EXCESSIVE OIL CONSUMPTION
BATTERY DEAD (UNDER CHARGE)
Warranty symptom code AA AB AC AD AE AF AG AH AJ AK AL AM HA
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![INFINITI FX35 2007 Service Manual EC-1174
[VK45DE]
DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
CO](/manual-img/42/57018/w960_57018-2549.png "INFINITI FX35 2007 Service Manual EC-1174
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DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
CO")
EC-1174
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DTC P1217 ENGINE OVER TEMPERATURE
Revision: 2006 July 2007 FX35/FX45
Cooling Fan Relay Operation
The ECM controls cooling fan relays in the IPDM E/R through CAN communication line.
COMPONENT DESCRIPTION
Cooling Fan Motor
The cooling fan at each speed when the current flows in the cooling fan motor as follows.
CONSULT-II Reference Value in Data Monitor ModeNBS004CT
Specification data are reference values.
On Board Diagnosis LogicNBS004CU
If the cooling fan or another component in the cooling system malfunctions, engine coolant temperature will
rise.
When the engine coolant temperature reaches an abnormally high temperature condition, a malfunction is
indicated.
This self-diagnosis has the one trip detection logic.
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-38, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-27, "Changing Engine Oil" .
Cooling fan speed Cooling fan relay
13
Stop (OFF) OFF OFF
Middle (MID) OFF ON
High (HI) ON ON
Cooling fan speed Cooling fan motor terminals
(+) (-)
Middle (MID) 1 3 and 4
2 3 and 4
High (HI) 1 and 2 3 and 4
MONITOR ITEM CONDITION SPECIFICATION
COOLING FAN
Engine: After warming up, idle
the engine
Air conditioner switch: OFF Engine coolant temperature is 94
°C
(201 °F) or less OFF
Engine coolant temperature is between
95 °C (203 °F) and 104 °C (219 °F) MID
Engine coolant temperature is 105 °C
(221 °F) or more HI
DTC No. Trouble diagnosis name DTC detecting condition Possible cause
P1217
1217 Engine over tempera-
ture (Overheat)
Cooling fan does not operate properly (Over-
heat).
Cooling fan system does not operate prop-
erly (Overheat).
Engine coolant was not added to the system
using the proper filling method.
Engine coolant is not within the specified
range.
Harness or connectors
(The cooling fan circuit is open or
shorted.)
IPDM E/R
Cooling fan
Radiator hose
Radiator
Radiator cap
Water pump
Thermostat
Water control valve
For more information, refer to EC-1183,
"Main 13 Causes of Overheating" .
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![INFINITI FX35 2007 Service Manual DTC P1217 ENGINE OVER TEMPERATURE EC-1175
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1. Fill radiator with coolant up to specified level with a filling speed o](/manual-img/42/57018/w960_57018-2550.png "INFINITI FX35 2007 Service Manual DTC P1217 ENGINE OVER TEMPERATURE EC-1175
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1. Fill radiator with coolant up to specified level with a filling speed o")
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1. Fill radiator with coolant up to specified level with a filling speed of 2 liters per minute. Be sure to
use coolant with the proper mixture ratio. Refer to MA-13, "
Anti-Freeze Coolant Mixture Ratio" .
2. After refilling coolant, run engine to ensure that no water-flow noise is emitted.
Overall Function CheckNBS004CV
Use this procedure to check the overall function of the cooling fan. During this check, a DTC might not be con-
firmed.
WARNING:
Never remove the radiator cap when the engine is hot. Serious burns could be caused by high pres-
sure fluid escaping from the radiator.
Wrap a thick cloth around cap. Carefully remove the cap by turning it a quarter turn to allow built-up
pressure to escape. Then turn the cap all the way off.
WITH CONSULT-II
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-1179,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to EC-1179,
"Diagnostic Procedure" .
3. Turn ignition switch ON.
4. Perform “COOLING FAN” in “ACTIVE TEST” mode with CON- SULT-II.
5. If the results are NG, go to EC-1179, "
Diagnostic Procedure" .
WITH GST
1. Check the coolant level in the reservoir tank and radiator.
Allow engine to cool before checking coolant level.
If the coolant level in the reservoir tank and/or radiator is below
the proper range, skip the following steps and go to EC-1179,
"Diagnostic Procedure" .
2. Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to EC-1179,
"Diagnostic Procedure" .
3. Disconnect engine coolant temperature sensor harness connec- tor.
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![INFINITI FX35 2007 Service Manual DTC P1217 ENGINE OVER TEMPERATURE EC-1181
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7. CHECK RADIATOR CAP
Apply pressure to cap with a tester.
OK or NG
OK >](/manual-img/42/57018/w960_57018-2556.png "INFINITI FX35 2007 Service Manual DTC P1217 ENGINE OVER TEMPERATURE EC-1181
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7. CHECK RADIATOR CAP
Apply pressure to cap with a tester.
OK or NG
OK >")
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7. CHECK RADIATOR CAP
Apply pressure to cap with a tester.
OK or NG
OK >> GO TO 8.
NG >> Replace radiator cap.
8. CHECK COMPONENT PARTS
Check the following.
Thermostat. (Refer to CO-53, "THERMOSTAT AND WATER CONTROL VALVE" .)
Water control valve. (Refer to CO-53, "THERMOSTAT AND WATER CONTROL VALVE" .)
Engine coolant temperature sensor. (Refer to EC-885, "Component Inspection" .)
OK or NG
OK >> GO TO 9.
NG >> Replace malfunctioning component.
9. CHECK MAIN 13 CAUSES
If the cause cannot be isolated, go to EC-1183, "
Main 13 Causes of Overheating" .
>> INSPECTION END
PROCEDURE A
1. CHECK POWER SUPPLY CIRCUIT
1. Turn ignition switch OFF.
2. Disconnect IPDM E/R harness connector E6.
3. Check voltage between IPDM E/R terminal 16 and ground with CONSULT-II or tester.
OK or NG
OK >> GO TO 3.
NG >> GO TO 2.
2. DETECT MALFUNCTIONING PART
Check the following.
40A fusible link
Harness for open or short between IPDM E/R and battery
>> Repair open circuit or short to ground or short to power in harness or connectors.
Radiator cap
relief pressure: 59 - 98 kPa (0.6 - 1.0 kg/cm
2 , 9 - 14 psi)
SLC755A
Voltage: Battery voltage
PBIB0966E
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PROCEDURE B
1. CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT
1. Disco](/manual-img/42/57018/w960_57018-2558.png "INFINITI FX35 2007 Service Manual DTC P1217 ENGINE OVER TEMPERATURE EC-1183
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PROCEDURE B
1. CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT
1. Disco")
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PROCEDURE B
1. CHECK COOLING FAN MOTOR CIRCUIT FOR OPEN OR SHORT
1. Disconnect IPDM E/R harness connector E6.
2. Disconnect cooling fan motor harness connector.
3. Check harness continuity between cooling fan motor terminal 1 and IPDM E/R terminal 11.
Refer to wiring diagram.
4. Also check harness for short to ground and short to power.
OK or NG
OK >> GO TO 2.
NG >> Repair open circuit or short to ground or short to power
in harness or connectors.
2. CHECK COOLING FAN MOTOR
Refer to EC-1184, "
Component Inspection" .
OK or NG
OK >> GO TO 3.
NG >> Replace cooling fan motor.
3. CHECK INTERMITTENT INCIDENT
Perform EC-812, "
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 13 Causes of OverheatingNBS004CY
Continuity should exist.
PBIB1493E
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 mixture MA-13
3Coolant levelVisual Coolant up to MAX level
in reservoir tank and radi-
ator filler neck CO-38
4Radiator capPressure tester 59 - 98 kPa
(0.6 - 1.0 kg/cm2 , 9 - 14
psi) (Limit) CO-43
ON*25Coolant leaksVisual No leaks
CO-38
ON*26ThermostatTouch the upper and
lower radiator hoses Both hoses should be hot
CO-53
ON*17Cooling fanCONSULT-II Operating See trouble diagnosis for
DTC P1217 ( EC-1173
).
OFF 8
Combustion gas leakColor checker chemical
tester 4 Gas analyzer Negative —