Suzuki VLR1800 Service Manual page 134

1A-65 Engine General Information and Diagnosis:
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)".
Step
1 1) Remove the air cleaner chamber. Refer to "Air Cleaner
Chamber Removal and Installation in Section 1D
(Page 1D-6)".
2) Check the STVA lead wire coupler (1) for loose or poor
contacts.
3) Start the engine to check the STV operation.
(STVA operating order: Open → 95% open)
Is the operation OK?
Action
1
I822H1110057-01
I705H1110063-01
Yes
Go to Step 2.
No
• Loose or poor
contacts on the
coupler.
• Open or short circuit
in the B/Lg, P/W, W/B
or Y/W wire.
• If wire and
connection are OK,
go to Step 2.