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Home >> Lexus >> 2012 >> IS 350 Base, AWD >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Entertainment Systems >> 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 >> Sound Signal Circuit between Radio Receiver and Multi-media Interface ECU >> Description

Sound Signal Circuit between Radio Receiver and Multi-media Interface ECU: Description

The multi-media interface ECU sends sound signals to the radio receiver assembly through this circuit.

If there is an open or short in the circuit, sound cannot be heard from the speakers even if there is no malfunction in the stereo component amplifier assembly, radio receiver assembly, DCM (telematics transceiver)*1 or speakers.