DTC B1572-13: Microphone Circuit Open [09/2019 - 04/2020]: Description
WARNING: This page is about a different car, the 2020 Toyota Corolla. However, it is still accessible from the selected car via links, so may be relevant.
This DTC is stored when the DCM (telematics transceiver) detects a malfunction in the telephone microphone assembly circuit.
| DTC No. | Detection Item | DTC Detection Condition | Trouble Area |
|---|---|---|---|
| B1572-13 | Microphone Circuit Open | Current at terminal MCVD is lower than the malfunction threshold for 10 seconds or more while the engine switch is on (IG) |
|