Dtc "C36" (P1764), "C37" (P1765), "C38" (P1766) Or "C39" (P1767): Secondary Fuel Injector Circuit Malfunction - Suzuki GSX1300BK B-King Service Manual

1A-90 Engine General Information and Diagnosis:
DTC "C36" (P1764), "C37" (P1765), "C38" (P1766) or "C39" (P1767): Secondary Fuel Injector Circuit
Malfunction
Detected Condition and Possible Cause
Detected Condition
Some failure exists in the fuel injector signal in a high
load, high revolution condition.
Wiring Diagram
ECM
64 #12
63 #22
62 #32
61 #42
1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 16 17
18 19 20 21 22 23 18 18
Troubleshooting
CAUTION
!
When using the multi-circuit tester, do not strongly touch the terminal of the ECM coupler with a
needle pointed tester probe to prevent the terminal damage or terminal bend.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to "Use of SDS Diagnosis Reset
Procedures (Page 1A-14)".
Lg
Lg/W
Lg/G
Lg/Bl
#4 #3
Secondary fuel injector
ECM coupler (Harness side)
24 25 26 27 28 29 30 31 32 33 34
Possible Cause
• Injector circuit open or short.
• Injector malfunction.
• ECM malfunction.
Fuel pump relay
Y/R
#2 #1
35 37 38 39 40 41 42 43 44 45 46 47 48 49 50 51
52 52 52 53 54 55 56 57 58 59 60 61 62 63
B823H11104032
To engine
stop switch
I823H1110079-03
64 65 66 67 68 68 68
I823H1110004-01