1996 X-90 Idle Speed Controller Problem

[busman1965]

Ordered the replacement transistor. While waiting for it to arrive, I went for a long drive today and the ISC control circuit finally failed 100%. It no longer operates the ISC valve at all. I am hoping the new transistor will cure the problem.

Are their electrolytic capacitors associated with the Q107 circuit that I should check?

Thank You!!