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Home >> Toyota >> 2012 >> Prius Two >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Audio / Video System (Except Plug-In) (W/O Daytime Running Light) (Diagnostic Codes & Symptom Tests) >> AUDIO AND VISUAL SYSTEM (w/o Daytime Running Light) >> Circuit Tests >> Steering Pad Switch Circuit >> Description
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Steering Pad Switch Circuit: Description

This circuit sends an operation signal from the steering pad switch assembly to the navigation ECU sub-assembly.

If there is an open in the circuit, the audio system cannot be operated using the steering pad switch assembly.

If there is a short in the circuit, the same condition as when a switch is continuously depressed occurs.

Therefore, the navigation ECU sub-assembly cannot be operated using the steering pad switch assembly, and also the navigation ECU sub-assembly itself cannot function.