TT: The microphone circuit passes through the DCM before reaching the radio/navigation system
Toyota technical service bulletin T-TT-0516-18 for 2018-2019 Toyota Sienna and 2019 Toyota Avalon.
- Bulletin number
- T-TT-0516-18
- Component
- Equipment
- Summary
- TT: The microphone circuit passes through the DCM before reaching the radio/navigation system. To simplify the diagnosis of the microphone, Safety Connect SOS button lights, and DCM (Telematics transceiver) inoperative conditions, refer to the procedure below to prevent unnecessary parts replacement.
Vehicles covered
- Toyota Sienna 2018-2019 20182019
- Toyota Avalon 2019 2019
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