Infiniti G35 (V35) Sedan. Manual — part 486
EC-90
< FUNCTION DIAGNOSIS >
[VQ35HR]
EXHAUST VALVE TIMING CONTROL
: Vehicle front
1.
Engine coolant temperature sensor
2.
A/F sensor 1 (bank 1)
3.
Crankshaft position sensor (POS)
1.
IPDM E/R
2.
Battery current sensor
3.
Refrigerant pressure sensor
: Vehicle front
1.
Power steering pressure sensor
2.
Alternator
3.
Engine oil temperature sensor
: Vehicle front
JMBIA0011ZZ
JMBIA0013ZZ
JMBIA0014ZZ
JMBIA0012ZZ
EXHAUST VALVE TIMING CONTROL
EC-91
< FUNCTION DIAGNOSIS >
[VQ35HR]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
1.
EVAP service port
2.
EVAP canister purge volume control
solenoid valve
3.
EVAP canister
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
1.
Accelerator pedal position sensor
2.
ECM
1.
ICC steering switch
2.
CANCEL switch
3.
RESUME/ACCELERATE switch
4.
SET/COAST switch
5.
DISTANCE switch
6.
MAIN switch
JMBIA0019ZZ
JMBIA0015ZZ
JMBIA0016ZZ
EC-92
< FUNCTION DIAGNOSIS >
[VQ35HR]
EXHAUST VALVE TIMING CONTROL
Component Description
INFOID:0000000000956510
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
4.
ASCD clutch switch (ASCD models)
ICC clutch switch (ICC models)
5.
Clutch pedal
JMBIA0017ZZ
JMBIA0051ZZ
Component
Reference
Camshaft position sensor (PHASE)
Crankshaft position sensor (POS)
Engine oil temperature sensor
Exhaust valve timing control magnet retarder
Exhaust valve timing control position sensor
Vehicle speed sensor
INTAKE VALVE TIMING CONTROL
EC-93
< FUNCTION DIAGNOSIS >
[VQ35HR]
C
D
E
F
G
H
I
J
K
L
M
A
EC
N
P
O
INTAKE VALVE TIMING CONTROL
System Diagram
INFOID:0000000000956511
System Description
INFOID:0000000000956512
INPUT/OUTPUT SIGNAL CHART
*: This signal is sent to the ECM through CAN communication line
SYSTEM DESCRIPTION
This mechanism hydraulically controls cam phases continuously with the fixed operating angle of the intake
valve.
The ECM receives signals such as crankshaft position, camshaft position, engine speed, and engine coolant
temperature. Then, the ECM sends ON/OFF pulse duty signals to the intake valve timing (IVT) control sole-
noid valve depending on driving status. This makes it possible to control the shut/open timing of the intake
valve to increase engine torque in low/mid speed range and output in high-speed range.
Component Parts Location
INFOID:0000000000956513
JMBIA0060GB
Sensor
Input signal to ECM
ECM function
Actuator
Crankshaft position sensor (POS)
Engine speed and piston position
Intake valve
timing control
Intake valve timing control
solenoid valve
Camshaft position sensor (PHASE)
Engine coolant temperature sensor
Engine coolant temperature
Unified meter and A/C amp.
Vehicle speed*
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