Suzuki GSX1300BK B-King - DTC C24 (P0351), C25 (P0352), C26 (P0353) or C27 (P0354): Ignition System Malfunction; DTC C28 (P1655): Secondary Throttle Valve Actuator (STVA) Malfunction

1A-72 Engine General Information and Diagnosis:
DTC “C24” (P0351), “C25” (P0352), “C26” (P0353) or “C27” (P0354): Ignition System Malfunction
B823H11104017
NOTE
Refer to “No Spark or Poor Spark in Section 1H (Page 1H-5)” for details.
DTC “C28” (P1655): Secondary Throttle Valve Actuator (STVA) Malfunction
B823H11104018
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
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.
• STVA malfunction.
• STVA circuit open or short.
• STVA motor malfunction.
ECM
STVA. 2B
STVA. 1A
STVA. 1B
STVA
B/Lg
P/W
W/B
Y/W
STVA. 2A
1
2
18
19
W/Bl
B
P
G
I823H1110129-02
1 2 3 4 5 6 7 8 9 10 11121314151617
18
18
18 19 20 21 22 23 26 2724 25 28 29 30 31 32 33 34
35
36
37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
53 54 55 56 57 58 59 60 61 62 63 6764 65 66 68
68
6852
52
52
I823H1110004-01