Suzuki GSX-R 1000 Service Manual: Exhaust control system operation
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 description
The exhaust control system (excs) consists of the exhaust control valve (excv),
exhaust control valve actuator
(excva) and exhaust control valve cables (excv cables).
Excv is installed in the ex ...
Other materials:
Turn signal / side-stand relay inspection
Refer to “electrical components location” in section 0a .
Note
make sure that the battery is fully charged.
Before removing the turn signal/side-stand relay, check
the operation of the turn signal light.
If the turn signal light does not illuminate, inspect the
bulb, turn signa ...
Clamp
Clamp the wire harness at such positions as indicated in “wiring harness
routing diagram” in section 9a .
Bend the clamp properly so that the wire harness is
clamped securely.
In clamping the wire harness, use care not to allow it
to hang down.
Do not use wire or an ...
Dimmer / passing light switch inspection
Inspect the dimmer/passing light switch in the following
procedures:
remove the air cleaner box. Refer to “air cleaner box removal and
installation” in section 1d .
Disconnect the left handlebar switch coupler (1).
(Yellow)
Inspect the dimmer/passing light switch ...