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 descriptionCam chain tensioner inspection
Inspect the cam chain tensioner in the following
procedures:
remove the cam chain tensioner. Refer to “cam chain guide / cam chain
tensioner removal and installation” .
Check the contacting surface of the cam chain
tensioner. If it is worn or damaged, replace it with a
new ...
Specifications
Service data
Brake
unit: mm (in)
Tightening torque specifications
Note
the specified tightening torque is described in the following.
“Front brake components”
Reference: for the tightening torque of fastener not specified in this
section, refer to “tightening torq ...
Regulator / rectifier construction
Regulator/rectifier
Regulator/rectifier bracket
Air intake pipe (rh)
Spacer
Wiring harness
Connect
the regulator/rectifier couplers under the wiring harness
10
N·m (1.0 Kgf-m, 7.0 Lbf-ft)
...