Suzuki 2009 LT-A500XP, Service Manual

Page: 138 / 624

1A-67 Engine General Information and Diagnosis:
Check 3
1) Click the button (6) and increase the “Spec” (2) to 1 600 rpm slowly.
2) Check that the “Desired idle speed” (3) is nearly equal to the “Spec” (2). Also, check that the number of steps (5) in
the ISC valve position increases.
Check 4
1) Click the button (6) and increase the “Spec” (2) to 1 800 rpm.
2) Check that the “Desired idle speed” (3) is approx. 1 800 rpm.
3) Check that the “Engine speed” (7) is close to 1 800 rpm.
NOTE
Be careful not to increase the “Spec” to 1 850 rpm, or the “Engine speed” may reach the upper limit.
If the ISC valve does not function properly, replace the ISC valve or inspect the ISC valve. Refer to “Throttle Body
Disassembly and Assembly: in Section 1D” .
2
6
I931H1110076-02
3
5
I931H1110077-01
2
6
I931H1110078-01
3
7
I931H1110079-01