Infiniti EX35. Manual - part 585

EC-82

< FUNCTION DIAGNOSIS >

[VQ35HR]

EVAPORATIVE EMISSION SYSTEM

4.

EVAP canister vent control valve

5.

EVAP control system pressure sen-
sor

 : Vehicle front

1.

Fuel level sensor unit and fuel pump 
harness connector

2.

Fuel level sensor unit and fuel pump 3.

Fuel pressure regulator

4.

Fuel tank temperature sensor

 : Vehicle front

1.

Accelerator pedal position sensor

2.

ECM

1.

ICC steering switch

2.

CANCEL switch

3.

RESUME/ACCELERATE switch

4.

SET/COAST switch

5.

MAIN switch

6.

DISTANCE switch

7.

LDP switch

JMBIA1182ZZ

JMBIA0015ZZ

JMBIA1308ZZ

EVAPORATIVE EMISSION SYSTEM

EC-83

< FUNCTION DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Component Description

INFOID:0000000003133275

1.

ASCD steering switch

2.

CANCEL switch

3.

RESUME/ACCELERATE switch

4.

SET/COAST switch

5.

MAIN switch

1.

Stop lamp switch

2.

ASCD brake switch (ASCD models)
ICC brake switch (ICC models)

3.

Brake pedal

JMBIA0017ZZ

JMBIA0312ZZ

Component

Reference

A/F sensor 1

EC-185, "Description"

Accelerator pedal position sensor

EC-421, "Description"

Camshaft position sensor (PHASE)

EC-256, "Description"

Crankshaft position sensor (POS)

EC-252, "Description"

Engine coolant temperature sensor

EC-172, "Description"

EVAP canister purge volume control solenoid valve

EC-278, "Description"

EVAP control system pressure sensor

EC-294, "Description"

Fuel tank temperature sensor

EC-228, "Description"

Mass air flow sensor

EC-157, "Description"

Throttle position sensor

EC-175, "Description"

EC-84

< FUNCTION DIAGNOSIS >

[VQ35HR]

EXHAUST VALVE TIMING CONTROL

EXHAUST VALVE TIMING CONTROL

System Diagram

INFOID:0000000003133276

System Description

INFOID:0000000003133277

INPUT/OUTPUT SIGNAL CHART

*: This signal is sent to the ECM through CAN Communication line 

SYSTEM DESCRIPTION

This mechanism magnetically controls cam phases continuously with the fixed operating angle of the exhaust
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine oil tem-
perature. Then, the ECM sends ON/OFF pulse duty signals to the exhaust valve timing control magnet
retarder depending on driving status. This makes it possible to control the shut/open timing of the exhaust
valve to increase engine torque and output in a range of high engine speed.

JMBIA1318GB

Sensor

Input signal to ECM

ECM function

Actuator

Crankshaft position sensor (POS)

Engine speed and piston position

Exhaust valve 
timing control

Exhaust valve timing con-
trol magnet retarder

Camshaft position sensor (PHASE)

Engine oil temperature sensor

Engine oil temperature

Exhaust valve timing control position sensor

Exhaust valve timing signal

Unified meter and A/C amp.

Vehicle speed*

PBIB2765E

EXHAUST VALVE TIMING CONTROL

EC-85

< FUNCTION DIAGNOSIS >

[VQ35HR]

C

D

E

F

G

H

I

J

K

L

M

A

EC

N

P

O

Component Parts Location

INFOID:0000000003738637

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)

JMBIA0002ZZ