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 brake caliper disassembly and
assembly
Refer to “front brake caliper removal and installation” .
Note
the right and left calipers are installed
symmetrically and therefore the disassembly
procedure for one side is the same as that for
the other side.
Disassembly
Remove the brake pads (1) and spring from the
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Special tools and equipment
Recommended service material
Note
required service material is also described in the following.
“Exhaust system components”
Special tool
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Symbols
Listed in the table below are the symbols indicating instructions and other
information necessary for servicing.
The meaning of each symbol is also included in the table.
Abbreviations
A:
abdc: after bottom dead center
ac: alternating current
acl: air cleaner, air cleaner box
api: ame ...