Start by checking the "Possible Causes" listed above. Visually inspect the related wiring harness and connectors. Check for damaged components and look for broken, bent, pushed out, or corroded connector's pins.
The cost to diagnose the B1579 Scion code is 1.0 hour of labor. The auto repair's diagnosis time and labor rates vary by location, vehicle's make and model, and even your engine type. Most auto repair shops charge between $75 and $150 per hour.
The Radio and Display Receiver Assembly (or Navigation Receiver Assembly) and Telephone Microphone Assembly are connected to each other using the microphone connection detection signal lines. This Diagnostic Trouble Code (DTC) is stored when a microphone connection detection signal line is disconnected.
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