INFINITI FX35 2006 Service Manual

TROUBLE DIAGNOSIS EC-757
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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

EC-758
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
1 - 6: The numbers refer to the order of inspection.
(continued on next page)
SYSTEM — ENGINE MECHANICAL & OTHER
ECM 22333333333 EC-1142,
EC-1146
Intake valve timing control solenoid valve cir-
cuit 32 13223 3
EC-851
PNP switch circuit 3 3 3 3 3 EC-1154
Refrigerant pressure sensor circuit 2 3 3 4EC-1341
Electrical load signal circuit 3EC-1305
Air conditioner circuit 223333333 3 2AT C - 4 0
VIAS control solenoid valve circuit 1EC-1224
ABS actuator and electric unit (control unit) 4EC-1169
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
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 tank 5
5 FL-10
Fuel piping 5 5 5 5 5 5
EM-194
Vapor lock —
Valve deposit 5 555 55 5 —
Poor fuel (Heavy weight gaso-
line, Low octane) —

TROUBLE DIAGNOSIS EC-759
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Revision: 2006 December 2006 FX35/FX45
Air Air duct 55555 5 EM-177
Air cleaner
EM-177
Air leakage from air duct
(Mass air flow sensor — electric
throttle control actuator) 5555 EM-177
Electric throttle control actuator
EM-179
Air leakage from intake manifold/
Collector/Gasket EM-179
Cranking Battery
111111
1 1
SC-4
Generator circuit
SC-20
Starter circuit 3SC-8
Signal plate 6EM-248
PNP switch 4AT- 11 2
Engine Cylinder head
55555 55 5 EM-232
Cylinder head gasket 4 3
Cylinder block
66666 66 6 4
EM-248
Piston
Piston ring
Connecting rod
Bearing
Crankshaft
Va l v e
mecha-
nism Timing chain
55555 55 5 EM-203
Camshaft
EM-215
Intake valve timing controlEM-203
Intake valve
3 EM-203
Exhaust valve
Exhaust Exhaust manifold/Tube/Muffler/ Gasket 55555 55 5 EM-183
,
EX-3
Three way catalyst
Lubrica-
tion Oil pan/Oil strainer/Oil pump/Oil
filter/Oil gallery/Oil cooler 55555 55 5 EM-187
,
LU-31
, LU-
28 , LU-29
Oil level (Low)/Filthy oil LU-25
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

EC-760
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
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-713 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

TROUBLE DIAGNOSIS EC-761
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Revision: 2006 December 2006 FX35/FX45
Engine Control Component Parts LocationNBS00421
1. IPDM E/R 2. ICC brake hold relay (ICC models only) 3. Refrigerant pressure sensor
4. Intake valve timing control position sensor (bank 2) 5. Intake valve timing control solenoid
valve (bank 2) 6. Electric throttle control actuator
7. Cooling fan motor 8. Intake valve timing control solenoid valve (bank 1) 9. Intake valve timing control position
sensor (bank 1)
10. Camshaft position sensor (PHASE) 11. Mass air flow sensor (with intake air temperature sensor) 12. Ignition coil (with power transistor)
and spark plug (bank 1)
13. Vacuum tank 14. VIAS control solenoid valve 15. Engine coolant temperature sensor
16. Fuel injector (bank 1) 17. Power valve actuator 18. Knock sensor (bank 1)
19. Knock sensor (bank 2) 20. Fuel injector (bank 2) 21. EVAP canister purge volume control solenoid valve
22. EVAP service port 23. Ignition coil (with power transistor) and spark plug (bank 2)
PBIB3224E

EC-762
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
: Vehicle front
1. Mass air flow sensor (with intake air temperature sensor) 2. Camshaft position sensor (PHASE) 3. Engine coolant temperature sensor
4. Engine coolant temperature sensor sub-harness connector 5. Knock sensor (bank 1) 6. Knock sensor (bank 2)
7. Refrigerant pressure sensor
PBIB3225E

TROUBLE DIAGNOSIS EC-763
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Revision: 2006 December 2006 FX35/FX45
: Vehicle front
1. Intake valve timing control position sensor (bank 2) 2. Intake valve timing control solenoid
valve (bank 2) 3. Intake valve timing control solenoid
valve (bank 1)
4. Intake valve timing control position sensor (bank 1) 5. Electric throttle control actuator 6. Condenser
7. Ignition coil (with power transistor) (bank 2) 8. Ignition coil (with power transistor)
(bank 1)
PBIB3226E

EC-764
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
: Vehicle front
1. Fuel injector (bank 2) 2. Fuel injector (bank 1) 3. VIAS control solenoid valve
4. Vacuum tank 5. Power valve actuator 6. EVAP canister purge volume control solenoid valve
7. EVAP service port 8. Cooling fan motor
PBIB3227E

TROUBLE DIAGNOSIS EC-765
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Revision: 2006 December 2006 FX35/FX45
: Vehicle front
1. Fuel pump fuse 2. IPDM E/R 3. ICC brake hold relay (ICC models only)
4. Crankshaft position sensor (POS) 5. Power steering pressure sensor 6. EVAP canister vent control valve
7. EVAP canister 8. EVAP control system pressure sensor
PBIB3228E

EC-766
[VK45DE]
TROUBLE DIAGNOSIS
Revision: 2006 December 2006 FX35/FX45
PBIB2710E
1. Air fuel ratio (A/F) sensor 1 (bank 1) 2. Heated oxygen sensor 2 (bank 1) 3. Heated oxygen sensor 2 (bank 1) harness connector
4. Heated oxygen sensor 2 (bank 2) harness connector 5. Heated oxygen sensor 2 (bank 2) 6. Air fuel ratio (A/F) sensor 1 (bank 2)
PBIB3239E