ACIS Control Circuit
DESCRIPTION
This circuit opens and closes the Intake Air Control Valve (IACV) in response
to changes in the engine
load in order to increase the intake efficiency (ACIS: Acoustic Control
Induction System).
When the engine speed is between 0 and 4450 rpm and the throttle valve opening
angl ...
Operation check
1. DETECTION RANGE MEASUREMENT AND INDICATOR CHECK
Turn the IG switch ON.
Move the shift lever to the R position (when the back
sonar and rear clearance sonar is checked).
With front clearance sonar:
Move the shift lever to the N position (when the front
clearance son ...
On-vehicle inspection
1. CHECK VVT SENSOR OUTPUT VOLTAGE
Turn the ignition switch to the ON position.
Check the voltage between the specified terminal
and body ground.
Standard voltage
While turning the crankshaft pulley by hand,
measure the voltage between each terminal. Check
that the voltage ...