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 descriptionFront wheel dust seal / bearing removal and installation
Removal
Remove the front wheel assembly. Refer to “front wheel assembly removal
and installation” .
Remove the dust seals using the special tool.
Special tool
(a): 09913–50121 (oil
seal remover)
Remove the wheel bearings using the special tool.
Special tool
(b): 099 ...
License plate light bulb replacement
Caution
when you touch the bulb with your bare
hands, clean the bulb with a cloth moistened
with alcohol or soap water to prevent
premature bulb failure.
Remove the license plate light mounting nuts.
Remove the lens cover (1) by removing the screws.
Re ...
Oil jet removal and installation
Piston cooling oil jet
Removal
Remove the engine assembly. Refer to “engine assembly removal” in
section 1d .
Remove the crankshaft assembly. Refer to “engine
bottom side disassembly” in section 1d (page 1d-
49).
Remove the piston cooling oil jets (1) from the upper
cra ...