Suzuki GSX-R 1000 Service Manual: Steering / handlebar
Steering general diagnosis
Diagnostic information and procedures
Steering symptom diagnosis
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Other materials:
DTC “c28” (p1655): secondary throttle
valve actuator (stva) malfunction
Detected condition and possible cause
Detected condition
Possible cause
The operation voltage does not reach the stva.
Ecm does not receive communication signal from the
stva. Stva can not operate properly or its motor locked
Stva malfunction.
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Battery current leakage inspection
Inspect the battery current leakage in the following
procedures:
turn the ignition switch off.
Remove the front seat. Refer to “exterior parts
removal and installation” in section 9d (page 9d-
6).
Disconnect the battery (–) lead wire.
Measure the current betwee ...
Hazard switch inspection
Inspect the hazard 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 hazard switch for continuity with the
tes ...