2006 INFINITI FX35 water pump

TROUBLE DIAGNOSIS EC-97
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
Symptom Matrix ChartNBS003M0
SYSTEM — BASIC ENGINE CONTROL SYSTEM
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
Fuel Fuel pump circuit 11232 22 3 2 EC-635
Fuel pressure regulator system334444444 4 EC-86
Fuel injector circuit 11232 22 2 EC-628
Evaporative emission system334444444 4 EC-39
Air Positive crankcase ventilation sys-
tem 33 4444444 41
EC-51
Incorrect idle speed adjustment 1 1 1 1 1 EC-77
Electric throttle control actuator 112332222 2 2 EC-562,
EC-573
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-77
Ignition circuit 11222 22 2EC-649
Power supply and ground circuit22333 33 23 EC-149
Mass air flow sensor circuit
1
12 2
222 2 EC-188,
EC-197
Engine coolant temperature sensor circuit
3 33
EC-210,
EC-222
Air fuel ratio (A/F) sensor EC-240
EC-240
EC-249
EC-258
EC-604
Throttle position sensor circuit
22 EC-215
,
EC-339
,
EC-510
,
EC-512
,
EC-589
Accelerator pedal position sensor circuit 3 2 1 EC-484
,
EC-575
,
EC-582
,
EC-596
Knock sensor circuit 2 3 EC-356
Crankshaft position sensor (POS) circuit 2 2EC-361
Camshaft position sensor (PHASE) circuit 3 2EC-368
Vehicle speed signal circuit 2 3 3 3EC-466
Power steering pressure sensor circuit 2 3 3EC-472

EC-100
[VQ35DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
1 - 6: The numbers refer to the order of inspection. Va l v e
mecha-
nism Timing chain
55555 55 5 EM-64
Camshaft
EM-83
Intake valve timing controlEM-64
Intake valve
3 EM-101
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/ Gasket 55555 55 5 EM-26
,
EX-
3Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler 55555 55 5 EM-30
,
LU-
17 , LU-10 ,
LU-14
Oil level (Low)/Filthy oil LU-7
Cooling
Radiator/Hose/Radiator filler cap
55555 55 45 CO-14,
CO-17
Thermostat 5 CO-27
Water pumpCO-22
Water galleryCO-29
Cooling fan 5EC-228
Coolant level (Low)/Contami-
nated coolant 5
CO-11
IVIS (Infiniti Vehicle Immobilizer System —
NATS) 11
EC-53 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

DTC P0181 FTT SENSOR EC-333
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
Component InspectionNBS003PH
FUEL TANK TEMPERATURE SENSOR
1. Remove fuel level sensor unit.
2. Check resistance between “fuel level sensor unit and fuel pump” terminals 4 and 5 by heating with hot water or heat gun as
shown in the figure.
If NG, replace fuel level sensor unit.
Removal and InstallationNBS003PI
FUEL TANK TEMPERATURE SENSOR
Refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Temperature °C ( °F) Resistance k Ω
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90
PBIB0931E

EC-338
[VQ35DE]
DTC P0182, P0183 FTT SENSOR
Revision: 2006 December 2006 FX35/FX45
Component InspectionNBS003PO
FUEL TANK TEMPERATURE SENSOR
1. Remove fuel level sensor unit.
2. Check resistance between “fuel level sensor unit and fuel pump” terminals 4 and 5 by heating with hot water or heat gun as
shown in the figure.
If NG, replace fuel level sensor unit.
Removal and InstallationNBS003PP
FUEL TANK TEMPERATURE SENSOR
Refer to FL-4, "FUEL LEVEL SENSOR UNIT, FUEL FILTER AND FUEL PUMP ASSEMBLY" .
Temperature °C ( °F) Resistance k Ω
20 (68) 2.3 - 2.7
50 (122) 0.79 - 0.90
PBIB0931E

DTC P0451 EVAP CONTROL SYSTEM PRESSURE SENSOR EC-427
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
2. CHECK EVPA CONTROL SYSTEM PRESSURE SENSOR CONNECTOR FOR WATER
1. Disconnect EVAP control system pressure sensor harness connector.
2. Check sensor harness connector for water.
OK or NG
OK >> GO TO 3.
NG >> Repair or replace harness connector.
3. CHECK EVAP CONTROL SYSTEM PRESSURE SENSOR
Refer to EC-427, "
Component Inspection" .
OK or NG
OK >> GO TO 4.
NG >> Replace EVAP control system pressure sensor.
4. CHECK INTERMITTENT INCIDENT
Refer to EC-148, "
TROUBLE DIAGNOSIS FOR INTERMITTENT INCIDENT" .
For Wiring Diagram, refer to EC-430
.
>> INSPECTION END
Component InspectionNBS003RK
EVAP CONTROL SYSTEM PRESSURE SENSOR
1. Remove EVAP control system pressure sensor with its harness connector connected from EVAP canister.
Always replace O-ring with a new one.
2. Install a vacuum pump to EVAP control system pressure sensor.
3. Turn ignition switch ON and check output voltage between ECM terminal 32 and ground under the following conditions.
CAUTION:

Always calibrate the vacuum pump gauge when using it.

Do not apply below -93.3 kPa (-700 mmHg, -27.56 inHg) or
pressure over 101.3 kPa (760 mmHg, 29.92 inHg).
4. If NG, replace EVAP control system pressure sensor. Water should not exist.
PBIB1611E
Applied vacuum kPa
(mmHg, inHg) Voltage V
Not applied 1.8 - 4.8
-26.7 (-200, -7.87) 2.1 to 2.5V lower than above value
PBIB1173E

DTC P1217 ENGINE OVER TEMPERATURE EC-499
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
CAUTION:
When a malfunction is indicated, be sure to replace the coolant. Refer to CO-11, "
Changing Engine
Coolant" . Also, replace the engine oil. Refer to LU-9, "Changing Engine Oil" .
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 CheckNBS003UK
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-503,
"PROCEDURE A" .
2. Confirm whether customer filled the coolant or not. If customer filled the coolant, skip the following steps and go to EC-503,
"PROCEDURE A" .
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-505, "
PROCEDURE B" .
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 level was not added to the
system using the proper filling method.

Engine coolant is not within the specified
range.

Harness or connectors
(Cooling fan circuit is open or shorted.)

IPDM E/R

Cooling fan

Radiator hose

Radiator

Radiator cap

Water pump

Thermostat
For more information, refer to EC-508,
"Main 12 Causes of Overheating" .
SEF621W
SEF646X

DTC P1217 ENGINE OVER TEMPERATURE EC-503
[VQ35DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
Diagnostic ProcedureNBS003UM
PROCEDURE A
1. INSPECTION START
Do you have CONSULT-II?
Ye s o r N o
Ye s > > G O T O 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-505, "
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-505, "
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.
SEF784Z

TROUBLE DIAGNOSIS EC-757
[VK45DE]
C
D E
F
G H
I
J
K L
M A
EC
Revision: 2006 December 2006 FX35/FX45
Symptom Matrix ChartNBS00420
SYSTEM — BASIC ENGINE CONTROL SYSTEM
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
Fuel Fuel pump circuit 11232 22 3 2 EC-1314
Fuel pressure regulator system334444444 4 EC-746
Fuel injector circuit 11232 22 2 EM-194
Evaporative emission system334444444 4 EC-699
Air Positive crankcase ventilation sys-
tem 33 4444444 41
EC-711
Incorrect idle speed adjustment 1 1 1 1 1 EC-737
Electric throttle control actuator 112332222 2 2 EC-1240,
EC-1252
IgnitionIncorrect ignition timing adjustment33111 11 1 EC-737
Ignition circuit 11222 22 2EC-1328
Main power supply and ground circuit22333 33 23 EC-812
Mass air flow sensor circuit
1
12 2
222 2 EC-858,
EC-867
,
Engine coolant temperature sensor circuit
3 33
EC-879
,
EC-892
A/F sensor 1 circuit EC-900
,
EC-910
,
EC-919
,
EC-928
,
EC-1283
Throttle position sensor circuit
22 EC-885
,
EC-1008
,
EC-1183
,
EC-1185
,
EC-1268
Accelerator pedal position sensor circuit 3 2 1 EC-1149
,
EC-1254
,
EC-1261
,
EC-1275
Knock sensor circuit 2 3 EC-1025
Crankshaft position sensor (POS) circuit 2 2EC-1030
Camshaft position sensor (PHASE) circuit 3 2EC-1037
Vehicle speed signal circuit 2 3 3 3EC-1131
Power steering pressure sensor circuit 2 3 3EC-1137