Engine General Information and Diagnosis: 1A-56
Troubleshooting
CAUTION
!
• Be careful not to disconnect the ISC valve coupler at least 3 seconds after ignition switch is turned
to OFF.
If the ECM coupler is disconnected within 3 seconds after ignition switch is turned to OFF, there is a
possibility of an usual valve being written in ECM and causing an error of ISC valve operation.
• 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 (Page1A-15)”.
Step Action Yes No
1 1) Turn the ignition switch OFF.
2) Remove the helmet box front cover. (Refer to “Helmet
Box Front Cover Removal and Installation in Section 9D
(Page9D-16)”.)
3) Check the ISC valve coupler (1) for loose or poor
contacts.
4) If OK, then check the ISC valve lead wire continuity.
5) Disconnect the ISC valve coupler and ECM coupler.
(Refer to “ECM Removal and Installation in Section 1C
(Page1C-1)”.)
Go to Step 2. G, W/B, P/W or B/Lg
wire open.
1
I705H1110124-01
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