The excs is operated by the signal supplied from the ecm. The open/close operation of the excv is performed by the excva which is controlled by the ecm by changing the current direction of the actuator motor. The position sensor (incorporated in the excva) detects the excva movement by measuring the voltage and then the ecm determines the excv opening angle based on the engine rpm and gear positions. Every time the ignition switch is turned on, the excva automatically drives the excv and detects full close/open position voltages and sets the excv to middle position.
Full close

Full open

Exhaust control system descriptionRear shock absorber bearing removal and installation
Removal
Remove the rear shock absorber. Refer to “rear shock absorber removal
and installation” .
Remove the spacer (1).
Remove the rear shock absorber bearing with the
special tool.
Special tool
(a): 09943–88211 (pinion bearing
installer)
Installation
C ...
Regulated voltage inspection
Inspect the regulated voltage in the following
procedures:
remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Start the engine and keep it running at 5 000 r/min
with the dimmer switch turned hi position.
Measure the dc vo ...
Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Rear suspension components” “rear suspension assembly
construction”
Special tool
...