Engine General Information and Diagnosis: 1A-109
DTC “C46” (P1657-H/L or P1658): EXCV Actuator Circuit Malfunction
B947H11104029
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
C46
The operation signal does not reach the
EXCV actuator.
EXCVA position sensor voltage low or
high
0.14 V ≤ Sensor voltage < 4.9 V
(without the above range)
EXCVA can not operate properly.
• EXCVA maladjusted.
• EXCVA circuit open or short.
• EXCVA motor malfunction.
• EXCVA position sensor malfunction.
• EXCVA position sensor circuit shorted to VCC or ground
circuit open.
• EXCVA position sensor circuit open or shorted to ground
or VCC circuit open.
• EXCVA motor circuit open or short.
• EXCVA motor malfunction.
P1657
H
Sensor voltage is higher than specified
value.
L
Sensor voltage is lower than specified
value.
P1658
The operation signal does not reach the
EXCVA motor.
EXCVA can not operate properly.
ECM
EXCVA
VCC
EXCVAS
EXCVA
EXCVA
E2
B/R
R/BP
Gr
B/Br
W
YY
RB
1
13
7
14
35
I947H1110081-01
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
To Next Page
Need help?
General
