1A-134 Engine General Information and Diagnosis:
DTC “C93” (P1769): Steering Damper Solenoid Valve Circuit Malfunction
B947H11104034
Detected Condition and Possible Cause
Wiring Diagram
ECM coupler (Harness side)
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 terminal damage.
NOTE
After repairing the trouble, clear the DTC using SDS tool. Refer to “Use of SDS Diagnosis Reset
Procedures” (Page 1A-14).
Detected Condition Possible Cause
C93
Steering damper control current does not flow to
the solenoid valve. With IG turned ON, ECM
detects a failure of internal circuit element.
Solenoid current does not converge to the target
value. Battery voltage is 10 V or below with the
engine running.
• Steering damper solenoid valve circuit
interrupter element shorted.
• Feedback current convergence failure.
• Low battery voltage.
• ECM malfunction.
P1769
H
Steering damper control current is higher than
specified value. An abnormal current is detected
during the vehicle standstill. Solenoid current is 0.7
A or above.
• Steering damper solenoid valve circuit shorted
to VCC.
L
Steering damper control current is lower than
specified value. With IG turned ON, ECM detects a
discontinuity. An abnormal current is detected
during the vehicle standstill.
• Steering damper solenoid valve circuit open.
• Steering damper solenoid valve circuit shorted.
ECM
Br
W
B/O
B/Bl
Steering damper
solenoid valve
Steering damper
Steering damper
25
26
I947H1110111-02
123456789101112
13 14 15 16 17 18 19 20 21 22 23 24
25 26 27 28 29 30 31 32 33 34 35 36
37 38 39 40 41 42 43 44 45 46 47 48
49 50 51 52 53 54 55 56 57 58 59 60
61 62 63 64 65 66 67 68 69 70 71 72
I837H1110007-02
Manuals by Motomatrix / The Solution For Lost Motorcycle Coded Keys
email: info@motomatrix.co.uk / www.motomatrix.co.uk
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