Infiniti G35 (V35) Sedan. Manual - part 469

EC-22

< FUNCTION DIAGNOSIS >

[VQ35HR]

ENGINE CONTROL SYSTEM

FUNCTION DIAGNOSIS

ENGINE CONTROL SYSTEM

System Diagram

INFOID:0000000000956478

1.

ECM

2.

Data link connector

3.

MIL

4.

Ignition switch

5.

Cooling fan control module

6.

Cooling fan

7.

PNP switch

8.

A/F sensor 1

9.

Heated oxygen sensor 2

10. Exhaust valve timing control magnet 

retarder

11.

Exhaust valve timing control position 
sensor

12. PCV valve

13. Spark plug

14. Camshaft position sensor (PHASE)

15. Intake valve timing control solenoid 

valve

16. Fuel injector

17. Engine coolant temperature sensor

18. Fuel injector

19. Intake valve timing control solenoid 

valve

20. Camshaft position sensor (PHASE)

21. Spark plug

JMBIA0050GB

ENGINE CONTROL SYSTEM

EC-23

< FUNCTION DIAGNOSIS >

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System Description

INFOID:0000000000956479

ECM performs various controls such as fuel injection control and ignition timing control.

Component Parts Location

INFOID:0000000000956480

22. Exhaust valve timing control position 

sensor

23. Exhaust valve timing control magnet 

retarder

24. A/F sensor 1

25. Heated oxygen sensor 2

26. Knock sensor

27. Crankshaft position sensor (POS)

28. Engine oil temperature sensor

29. Knock sensor

30. Three way catalyst 1

31. Three way catalyst 2

32. Three way catalyst 1

33. Three way catalyst 2

34. Muffler

35. EVAP canister vent control valve

36. EVAP control system pressure sen-

sor

37. EVAP service port

38. EVAP canister purge volume control 

solenoid valve

39. EVAP canister

40. Fuel damper

41. Fuel pump

42. Fuel pressure regulator

43. Fuel level sensor

44. Fuel tank temperature sensor

45. Fuel tank

46. Accelerator pedal position sensor

47. Electric throttle control actuator

48. Throttle position sensor

49. Mass air flow sensor (with intake air 

temperature sensor)

50. Air cleaner

51. Electric throttle control actuator

52. Throttle position sensor

53. Mass air flow sensor (with intake air 

temperature sensor)

54. Air cleaner

JMBIA0002ZZ

EC-24

< FUNCTION DIAGNOSIS >

[VQ35HR]

ENGINE CONTROL SYSTEM

1.

Battery current sensor

2.

IPDM E/R

3.

Cooling fan relay

4.

Mass air flow sensor (with intake air 
temperature sensor) (bank 1)

5.

Refrigerant pressure sensor

6.

Cooling fan motor-2

7.

Intake valve timing control solenoid 
valve

8.

Exhaust valve timing control magnet 
retarder

9.

Cooling fan control module

10. Cooling fan motor-1

11.

Mass air flow sensor (with intake air 
temperature sensor) (bank 2)

12. ICC brake hold relay (ICC models)

13. Ignition coil (with power transistor) 

and spark plug (bank 2)

14. Electric throttle control actuator 

(bank 2)

15. A/F sensor 1 (bank 2)

16. Fuel injector (bank 2)

17. Camshaft position sensor (PHASE)

18. Engine coolant temperature sensor

19. Knock sensor

20. Exhaust valve timing control position 

sensor

21. EVAP canister purge volume control 

solenoid valve

22. Fuel injector (bank 1)

23. Ignition coil (with power transistor) 

and spark plug (bank 1)

24. EVAP service port

25. A/F sensor 1 (bank 1)

26. Crankshaft position sensor (POS)

27. Electric throttle control actuator 

(bank 1)

1.

Mass air flow sensor (with intake air 
temperature sensor) (bank 1)

2.

Mass air flow sensor (with intake air 
temperature sensor) (bank 2)

1.

Electric throttle control actuator 
(bank 1)

2.

Electric throttle control actuator 
(bank 2)

JMBIA0003ZZ

JMBIA0004ZZ

JMBIA0005ZZ

ENGINE CONTROL SYSTEM

EC-25

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 : Vehicle front

1.

Cooling fan motor-2

2.

Cooling fan control module

3.

Cooling fan motor-1

4.

Cooling fan relay

PBIB1907E

 : Vehicle front

1.

A/F sensor 1 (bank 1)

2.

A/F sensor 1 (bank 2)

 : Vehicle front

1.

A/F sensor 1 (bank 1) harness con-
nector

2.

A/F sensor 1 (bank 2) harness con-
nector

JMBIA0007ZZ

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