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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.

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Suzuki GSX-R. Full close


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Suzuki GSX-R. 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 ...

Repair instructions
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Other materials:

DTC “c60” (p0480): cooling fan relay circuit malfunction
Detected condition and possible cause Detected condition Possible cause Cooling fan relay signal is not input to ecm. Cooling fan relay circuit open or short. Ecm malfunction. Wiring diagram Troubleshooting Caution when using ...

Special tools and equipment
Recommended service material Note required service material is also described in the following. “Lubrication points” Special tool ...

Specifications
Service data Brake unit: mm (in) Tightening torque specifications Note the specified tightening torque is described in the following. “Front brake hose routing diagram”  “rear brake hose routing diagram”  “front brake master cylinder components”  “rear ...

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