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Home >> Toyota >> 2012 >> Sienna SE >> Repair and Diagnosis (Single Page) >> Accessories & Equipment >> Infotainment >> Navigation System (For DVD Without USB Audio System) (Diagnostic Codes & Circuit Tests) >> NAVIGATION SYSTEM (for DVD without USB Audio System) >> Circuit Tests >> Steering Pad Switch Circuit >> Description

Steering Pad Switch Circuit: Description

This circuit sends an operation signal from the steering pad switch assembly to the navigation receiver 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 the switch is continuously depressed occurs.

Therefore, the navigation receiver assembly cannot be operated using the steering pad switch assembly, and the navigation receiver assembly itself cannot function.