Home >> Lexus >> 2012 >> IS 250 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio Entertainment System (W/O Navigation & Multi-Display) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/o Navigation System without Multi-display) >> Circuit Tests >> Steering Pad Switch Circuit >> Wiring Diagram