Suzuki GSX-R750, Service Manual

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11-6 GSX-R750K2 (’02-MODEL)
When no actuator control signal is supplied from the ECM or
communication signal does not reach ECM or operation voltage
does not reach STVA motor, c28 is indicated. STVA can not
operate.
STVA lead wire/coupler.
The sensor should produce following voltage.
(0.2 V
sensor voltage < 4.8 V)
Without the above range, c29 is indicated.
Secondary throttle position sensor, wiring/coupler connection.
Gear position signal voltage should be higher than the following
for more than 3 seconds.
(Gear position sensor voltage > 0.60 V)
Without the above value, c31 is indicated.
Gear position sensor, wiring/coupler connection. Gearshift cam
etc.
When fuel injection signal stops, the c32, c33, c34 or c35 is
indicated.
Injector, wiring/coupler connection, power supply to the in-
jector.
When no signal is supplied from fuel pump relay, c41 is indicated.
Fuel pump relay, connecting lead, power source to fuel pump
relay.
Ignition switch signal is not input in the ECM.
Ignition switch, lead wire/coupler.
c28
c29
c31
c32, c33, c34
or c35
c41
c42
Secondary throttle
valve actuator
Secondary throttle
position sensor
Gear position signal
Fuel injector signal
Fuel pump relay
signal
Ignition switch signal