LEMON Manuals: Even more car manuals for everyone: 1960-2025
Home >> Lexus >> 1995 >> SC 400 >> Repair and Diagnosis >> Engine Performance >> Testing & Diagnosis >> Engine Controls - System/Component Tests >> Idle Control System >> Idle Air Control (IAC) System >> IAC System Operation
October 30: LEMON manuals on a temporary server, it is slow and having issues, download the manuals you need! Later in November we will switch back to the fast server.

IAC System Operation

Start engine. While shutting engine off, listen for a click from IAC valve. See COMPONENT LOCATIONS  under INTRODUCTION. If click is heard, IAC system is okay. If click is not heard, perform IAC system circuit test.