Suzuki Intruder VZ1500 Service Manual page 126

1A-59 Engine General Information and Diagnosis:
Step
1 1) Remove the air cleaner chamber. Refer to "Air Cleaner
Chamber Removal and Installation in Section 1D
(Page 1D-7)".
2) Check the STVA lead wire coupler (1) for loose or poor
contacts.
3) Turn the ignition switch ON to check the STV operation.
(STVA operating order: Full open)
Is the operation OK?
Action
1
I940H1110048-02
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 G wire.
• If wire and
connection are OK,
go to Step 2.