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Description
NFEC0821
SYSTEM DESCRIPTION
NFEC0821S01
Sensor Input signal to ECM function ECM Actuator
Crankshaft position sensor (POS)
Camshaft position sensor (PHASE)
Engine speed
Intake valve
timing con-
trol
Intake valve timing control sole-
noid valveEngine coolant temperature sensor Engine coolant temperature
Vehicle speed sensor Vehicle speed
PBIB0606E
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 camshaft timing control valve depend-
ing 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.
CONSULT-II Reference Value in Data Monitor
Mode
NFEC0822
Specification data are reference values.
MONITOR ITEM CONDITION SPECIFICATION
INT/V TIM (B1)
INT/V TIM (B2)
I Engine: After warming up
I Shift lever “N”
I Quickly depressed accelerator
pedal
I No-load
Idle −5 - 5° CA
2,000 rpm Approximately 0 - 30° CA
INT/V SOL (B1)
INT/V SOL (B2)
I Engine: After warming up
I Shift lever “N”
I Quickly depressed accelerator
pedal
I No-load
Idle 0 - 2%
2,000 rpm Approximately 25 - 50%
GI
MA
EM
LC
FE
CL
MT
AT
AX
SU
BR
ST
RS
BT
HA
SC
EL
IDX
DTC P0011, P0021 IVT CONTROL
Description
EC-167
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