Toyota Camry Manual page 1407

DI–380
IACV Control VSV Circuit
CIRCUIT DESCRIPTION
This circuit opens and closes the IACV (Intake Air Control Valve) in response to the engine load in order to
increase the intake efficiency (ACIS: Acoustic Control Induction System).
When the engine speed is 3,700 rpm or less and the throttle valve opening angle is 60° or more, the ECM
turns the VSV ON and closes the IACV. At all other times, the VSV is OFF, so the IACV is open.
1 3
IACV
2 4
FI7011 FI6570
WIRING DIAGRAM
4
2F
2
2J
B–Y
EB
DIAGNOSTICS
5
Throttle Valve
6
Engine Room J/B
2
1
EFI
3 5
EFI Relay
B
B
B–Y
J27 J28
Junction
Connector
– ENGINE (1MZ–FE)
Junction Connector
7
C
B–W
2K
J36
1
2A
From Battery
9
B–Y A A
B–Y
II3
J20
Junction
Connector
Author :
IACV closed (VSV: ON)
30°
3,700 rpm
Engine speed
C
B–W
J35 E7
VSV for ACIS
17
R–Y
E11
2
1
Date :
DI08E–06
A00306
ECM
B+
8
MREL
ACIS
E01
A07452
615